File:  [LON-CAPA] / loncom / interface / Attic / londropadd.pm
Revision 1.176: download - view: text, annotated - select for diffs
Tue Nov 18 19:14:22 2008 UTC (15 years, 7 months ago) by jms
Branches: MAIN
CVS tags: HEAD
Added/updated/converted POD. Many files had their POD redone to new standards.

    1: # The LearningOnline Network with CAPA
    2: # Handler to drop and add students in courses 
    3: #
    4: # $Id: londropadd.pm,v 1.176 2008/11/18 19:14:22 jms Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: #
   29: 
   30: =head1 NAME
   31: 
   32: Apache::londropadd.pm
   33: 
   34: =head1 SYNOPSIS
   35: 
   36: drop & add students
   37: 
   38: This is part of the LearningOnline Network with CAPA project
   39: described at http://www.lon-capa.org.
   40: 
   41: =head1 SUBROUTINES
   42: 
   43: =over
   44: 
   45: =cut
   46: 
   47: package Apache::londropadd;
   48: 
   49: use strict;
   50: use Apache::lonnet;
   51: use Apache::loncommon();
   52: use Apache::lonhtmlcommon();
   53: use Apache::Constants qw(:common :http REDIRECT);
   54: use Spreadsheet::WriteExcel;
   55: use Apache::lonstathelpers();
   56: use Apache::lonlocal;
   57: use Apache::longroup;
   58: use LONCAPA();
   59: 
   60: sub header {
   61:     my ($jscript,$loaditems) = @_;
   62:     my $start_page;
   63:     if (ref($loaditems) eq 'HASH') {
   64:         $start_page=&Apache::loncommon::start_page('Enrollment Manager',$jscript,{'add_entries' => $loaditems,});
   65:     } else {
   66:         $start_page=&Apache::loncommon::start_page('Enrollment Manager',$jscript);
   67:     }
   68:     return(<<ENDHEAD);
   69: $start_page
   70: <form method="post" enctype="multipart/form-data"  
   71:       action="/adm/dropadd" name="studentform">
   72: ENDHEAD
   73: }
   74: 
   75: =pod
   76: 
   77: =item modifystudent()
   78: 
   79:     Drop student from all sections of a course, except optional $csec
   80: 
   81: =cut
   82: 
   83: sub modifystudent {
   84:     my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
   85:     # if $csec is undefined, drop the student from all the courses matching
   86:     # this one.  If $csec is defined, drop them from all other sections of 
   87:     # this course and add them to section $csec
   88:     my $cdom = $env{'course.'.$courseid.'.domain'};
   89:     my $cnum = $env{'course.'.$courseid.'.num'};
   90:     my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
   91:     my ($tmp) = keys(%roles);
   92:     # Bail out if we were unable to get the students roles
   93:     return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
   94:     # Go through the roles looking for enrollment in this course
   95:     my $result = '';
   96:     foreach my $course (keys(%roles)) {
   97:         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E(?:\/)*(?:\s+)*(\w+)*\_st$}) {
   98:             # We are in this course
   99:             my $section=$1;
  100:             $section='' if ($course eq "/$cdom/$cnum".'_st');
  101:             if (defined($csec) && $section eq $csec) {
  102:                 $result .= 'ok:';
  103:             } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
  104:                 my (undef,$end,$start)=split(/\_/,$roles{$course});
  105:                 my $now=time;
  106:                 # if this is an active role
  107:                 if (!($start && ($now<$start)) || !($end && ($now>$end))) {
  108:                     my $reply=&Apache::lonnet::modifystudent
  109:                         # dom  name  id mode pass     f     m     l     g
  110:                         ($udom,$unam,'',  '',  '',undef,undef,undef,undef,
  111:                          $section,time,undef,undef,$desiredhost);
  112:                     $result .= $reply.':';
  113:                 }
  114:             }
  115:         }
  116:     }
  117:     if ($result eq '') {
  118:         $result = 'Unable to find section for this student';
  119:     } else {
  120:         $result =~ s/(ok:)+/ok/g;
  121:     }
  122:     return $result;
  123: }
  124: 
  125: =pod
  126: 
  127: =item domain_form()
  128:     
  129:     build a domain and server selection form
  130: 
  131: =cut
  132: 
  133: sub domain_form {
  134:     my ($defdom) = @_;
  135:     # Set up domain and server selection forms
  136:     #
  137:     # Get the domains
  138:     my @domains = &Apache::lonnet::all_domains();
  139:     # build up the menu information to be passed to 
  140:     # &Apache::loncommon::linked_select_forms
  141:     my %select_menus;
  142:     foreach my $dom (@domains) {
  143:         # set up the text for this domain
  144:         $select_menus{$dom}->{'text'}= $dom;
  145:         # we want a choice of 'default' as the default in the second menu
  146:         $select_menus{$dom}->{'default'}= 'default';
  147:         $select_menus{$dom}->{'select2'}->{'default'} = 'default';
  148:         # Now build up the other items in the second menu
  149:         my %servers = &Apache::lonnet::get_servers($dom,'library');
  150:         foreach my $server (keys(%servers)) {
  151:             $select_menus{$dom}->{'select2'}->{$server} 
  152:                                             = "$server $servers{$server}";
  153:         }
  154:     }
  155:     my $result  = &Apache::loncommon::linked_select_forms
  156:         ('studentform',' with home server ',$defdom,
  157:          'lcdomain','lcserver',\%select_menus);
  158:     return $result;
  159: }
  160: 
  161: =pod
  162: 
  163: =item print_main_menu()
  164: 
  165:     Menu Phase One
  166: 
  167: =cut
  168: 
  169: sub print_main_menu {
  170:     my ($r,$permission)=@_;
  171:     #
  172:     my $cid =$env{'request.course.id'};
  173:     my $cdom=$env{'course.'.$cid.'.domain'};
  174:     my $cnum=$env{'course.'.$cid.'.num'};
  175:     my @menu = 
  176:         ( 
  177:           { text => 'Upload a class list', 
  178:             help => 'Course_Create_Class_List',
  179:             action => 'upload',
  180:             permission => $permission->{'enrl'},
  181:             },
  182:           { text => 'Enroll a single student', 
  183:             help => 'Course_Add_Student',
  184:             action => 'enrollstudent',
  185:             permission => $permission->{'enrl'},
  186:             },
  187:           { text => 'Modify student data', 
  188:             help => 'Course_Modify_Student_Data',
  189:             action => 'modifystudent',
  190:             permission => $permission->{'enrl'},
  191:             },
  192:           { text => 'View Class List', 
  193:             help => 'Course_View_Class_List',
  194:             action => 'classlist',
  195:             permission => $permission->{'view'},
  196:             },
  197:           { text => 'Drop Students', 
  198:             help => 'Course_Drop_Student',
  199:             action => 'drop',
  200:             permission => $permission->{'enrl'},
  201:             },
  202:           { text => 'Automated Enrollment Manager', 
  203:             permission => (&Apache::lonnet::auto_run($cnum,$cdom) 
  204: 			   && $permission->{'enrl'}),
  205:             url  => '/adm/populate',
  206:             },
  207:           { text => 'Create a new group',
  208:             help => 'Course_Create_Group',
  209:             permission => $permission->{'grp_manage'},
  210:             url => '/adm/coursegroups?refpage=enrl&amp;action=create',
  211:             },
  212:           { text => 'Modify an existing group',
  213:             help => 'Course_Modify_Group',
  214:             permission => $permission->{'grp_manage'},
  215:             url => '/adm/coursegroups?refpage=enrl&amp;action=modify',
  216:             },
  217:           { text => 'Delete an existing group',
  218:             help => 'Course_Delete_Group',
  219:             permission => $permission->{'grp_manage'},
  220:             url => '/adm/coursegroups?refpage=enrl&amp;action=delete',
  221:             },
  222:           { text => 'Re-enable a deleted group',
  223:             help => 'Course_Reenable_Group',
  224:             permission => $permission->{'grp_manage'},
  225:             url => '/adm/coursegroups?refpage=enrl&amp;action=reenable',
  226:             },
  227:           { text => 'Enter an existing group',
  228:             help => 'Course_Display_Group',
  229:             permission => $permission->{'grp_view'},
  230:             url => '/adm/coursegroups?refpage=enrl&amp;action=view',
  231:             },
  232:           );
  233:     my $menu_html = '';
  234:     foreach my $menu_item (@menu) {
  235:         next if (! $menu_item->{'permission'});
  236:         $menu_html.='<p>';
  237:         $menu_html.='<font size="+1">';
  238:         if (exists($menu_item->{'url'})) {
  239:             $menu_html.=qq{<a href="$menu_item->{'url'}">};
  240:         } else {
  241:             $menu_html.=
  242:                 qq{<a href="/adm/dropadd?action=$menu_item->{'action'}">};
  243:         }
  244:         $menu_html.= &mt($menu_item->{'text'}).'</a></font>';
  245:         if (exists($menu_item->{'help'})) {
  246:             $menu_html.=
  247:                 &Apache::loncommon::help_open_topic($menu_item->{'help'});
  248:         }
  249:         $menu_html.='</p>'.$/;
  250:     }
  251:     $r->print($menu_html);
  252:     return;
  253: }
  254: 
  255: 
  256: 
  257: sub hidden_input {
  258:     my ($name,$value) = @_;
  259:     return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
  260: }
  261: 
  262: 
  263: 
  264: sub print_upload_manager_header {
  265:     my ($r,$datatoken,$distotal,$krbdefdom)=@_;
  266:     my $javascript;
  267:     #
  268:     if (! exists($env{'form.upfile_associate'})) {
  269:         $env{'form.upfile_associate'} = 'forward';
  270:     }
  271:     if ($env{'form.associate'} eq 'Reverse Association') {
  272:         if ( $env{'form.upfile_associate'} ne 'reverse' ) {
  273:             $env{'form.upfile_associate'} = 'reverse';
  274:         } else {
  275:             $env{'form.upfile_associate'} = 'forward';
  276:         }
  277:     }
  278:     if ($env{'form.upfile_associate'} eq 'reverse') {
  279: 	$javascript=&upload_manager_javascript_reverse_associate();
  280:     } else {
  281: 	$javascript=&upload_manager_javascript_forward_associate();
  282:     }
  283:     #
  284:     # Deal with restored settings
  285:     my $password_choice = '';
  286:     if (exists($env{'form.ipwd_choice'}) &&
  287:         $env{'form.ipwd_choice'} ne '') {
  288:         # If a column was specified for password, assume it is for an
  289:         # internal password.  This is a bug waiting to be filed (could be
  290:         # local or krb auth instead of internal) but I do not have the 
  291:         # time to mess around with this now.
  292:         $password_choice = 'int';        
  293:     }
  294:     #
  295:     my $javascript_validations = 
  296:         &javascript_validations('auth',$krbdefdom,$password_choice,undef,
  297:                                 $env{'request.role.domain'});
  298:     my $checked=(($env{'form.noFirstLine'})?' checked="checked" ':'');
  299:     $r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
  300:               "<hr>\n".
  301:               '<h3>'.&mt('Identify fields')."</h3>\n");
  302:     $r->print("<p>\n".
  303:               &mt('Total number of records found in file: [_1].',$distotal).
  304:               "\n".
  305:               "</p><hr>\n");
  306:     $r->print(&mt('Enter as many fields as you can. The system will inform you and bring you back to this page if the data selected is insufficient to enroll students in your class.')."<hr>\n");
  307:     $r->print(&hidden_input('action','upload').
  308:               &hidden_input('state','got_file').
  309:               &hidden_input('associate','').
  310:               &hidden_input('datatoken',$datatoken).
  311:               &hidden_input('fileupload',$env{'form.fileupload'}).
  312:               &hidden_input('upfiletype',$env{'form.upfiletype'}).
  313:               &hidden_input('upfile_associate',$env{'form.upfile_associate'}));
  314:     $r->print('<input type="button" value="Reverse Association" '.
  315:               'name="'.&mt('Reverse Association').'" '.
  316:               'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
  317:     $r->print('<label><input type="checkbox" name="noFirstLine"'.$checked.'/>'.
  318:               &mt('Ignore First Line').'</label>');
  319:     $r->print("<hr />\n".
  320:               '<script type="text/javascript" language="Javascript">'."\n".
  321:               $javascript."\n".$javascript_validations.'</script>');
  322: }
  323: 
  324: 
  325: 
  326: 
  327: 
  328: sub javascript_validations {
  329:     my ($mode,$krbdefdom,$curr_authtype,$curr_authfield,$domain)=@_;
  330:     my $authheader;
  331:     if ($mode eq 'auth') {
  332:         my %param = ( formname => 'studentform',
  333:                       kerb_def_dom => $krbdefdom,
  334:                       curr_authtype => $curr_authtype);
  335:         $authheader = &Apache::loncommon::authform_header(%param);
  336:     } elsif ($mode eq 'createcourse') {
  337:         my %param = ( formname => 'ccrs',
  338:                       kerb_def_dom => $krbdefdom,
  339:                       curr_authtype => $curr_authtype );
  340:         $authheader = &Apache::loncommon::authform_header(%param);
  341:     } elsif ($mode eq 'modifycourse') {
  342:         my %param = ( formname => 'cmod',
  343:                   kerb_def_dom => $krbdefdom,
  344:                   mode => 'modifycourse',
  345:                   curr_authtype => $curr_authtype,
  346:                   curr_autharg => $curr_authfield );
  347:         $authheader = &Apache::loncommon::authform_header(%param);
  348:     }
  349: 
  350:     
  351:     my %alert = &Apache::lonlocal::texthash
  352:         (username => 'You need to specify the username field.',
  353:          authen   => 'You must choose an authentication type.',
  354:          krb      => 'You need to specify the Kerberos domain.',
  355:          ipass    => 'You need to specify the initial password.',
  356:          name     => 'The optional name field was not specified.',
  357:          snum     => 'The optional student number field was not specified.',
  358:          section  => 'The optional section field was not specified.', 
  359:          email    => 'The optional email address field was not specified.',
  360:          continue => 'Continue enrollment?',
  361:          );
  362:     
  363: #    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
  364:     my $function_name =(<<END);
  365: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
  366: END
  367:     my ($authnum,%can_assign) =  &Apache::loncommon::get_assignable_auth($domain);
  368:     my $auth_checks;
  369:     if ($mode eq 'createcourse') {
  370:         $auth_checks .= (<<END);
  371:     if (vf.autoadds[0].checked == true) {
  372:         if (current.radiovalue == null || current.radiovalue == 'nochange') {
  373:             alert('$alert{'authen'}');
  374:             return;
  375:         }
  376:     }
  377: END
  378:     } else {
  379:         $auth_checks .= (<<END);
  380:     var foundatype=0;
  381:     if (founduname==0) {
  382:         alert('$alert{'username'}');
  383:         return;
  384:     }
  385: 
  386: END
  387:         if ($authnum > 1) {
  388:             $auth_checks .= (<<END);
  389:     // alert('current.radiovalue = '+current.radiovalue);
  390:     if (current.radiovalue == null || current.radiovalue == '' || current.radiovalue == 'nochange') {
  391:         // They did not check any of the login radiobuttons.
  392:         alert('$alert{'authen'}');
  393:         return;
  394:     }
  395: END
  396:         }
  397:     }
  398:     if ($mode eq 'createcourse') {
  399:         $auth_checks .= "
  400:     if ( (vf.autoadds[0].checked == true) &&
  401:          (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') ) {
  402: ";
  403:     } elsif ($mode eq 'modifycourse') {
  404:         $auth_checks .= " 
  405:     if (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') {
  406: ";
  407:     }
  408:     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
  409:         $auth_checks .= (<<END);
  410:         var alertmsg = '';
  411:         switch (current.radiovalue) {
  412:             case 'krb':
  413:                 alertmsg = '$alert{'krb'}';
  414:                 break;
  415:             default:
  416:                 alertmsg = '';
  417:         }
  418:         if (alertmsg != '') {
  419:             alert(alertmsg);
  420:             return;
  421:         }
  422:     }
  423: END
  424:     } else {
  425:         $auth_checks .= (<<END);
  426:     foundatype=1;
  427:     if (current.argfield == null || current.argfield == '') {
  428:         var alertmsg = '';
  429:         switch (current.value) {
  430:             case 'krb': 
  431:                 alertmsg = '$alert{'krb'}';
  432:                 break;
  433:             case 'loc':
  434:             case 'fsys':
  435:                 alertmsg = '$alert{'ipass'}';
  436:                 break;
  437:             case 'fsys':
  438:                 alertmsg = '';
  439:                 break;
  440:             default: 
  441:                 alertmsg = '';
  442:         }
  443:         if (alertmsg != '') {
  444:             alert(alertmsg);
  445:             return;
  446:         }
  447:     }
  448: END
  449:     }
  450:     my $section_checks;
  451:     my $optional_checks = '';
  452:     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
  453:         $optional_checks = (<<END);
  454:     vf.submit();
  455: }
  456: END
  457:     } else {
  458:         $section_checks = &Apache::lonuserutils::section_check_js();
  459:         $optional_checks = (<<END);
  460:     var message='';
  461:     if (foundname==0) { 
  462:         message='$alert{'name'}';
  463:     }
  464:     if (foundid==0) { 
  465:         if (message!='') { 
  466:             message+='\\n'; 
  467:         }
  468:         message+='$alert{'snum'}';
  469:     }
  470:     if (foundsec==0) {
  471:         if (message!='') {
  472:             message+='\\n';
  473:         } 
  474:         message+='$alert{'section'}';
  475:     }
  476:     if (foundemail==0) {
  477:         if (message!='') {
  478:             message+='\\n';
  479:         }
  480:         message+='$alert{'email'}';
  481:     }
  482:     if (message!='') {
  483:         message+= '\\n$alert{'continue'}';
  484:         if (confirm(message)) {
  485:             vf.state.value='enrolling';
  486:             vf.submit();
  487:         }
  488:     } else {
  489:         vf.state.value='enrolling';
  490:         vf.submit();
  491:     }
  492: }
  493: END
  494:     }
  495:     my $result = $function_name;
  496:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
  497:         $result .= $auth_checks;
  498:     }
  499:     $result .= $optional_checks."\n".$section_checks;
  500:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
  501:         $result .= $authheader;
  502:     }
  503:     return $result;
  504: }
  505: 
  506: 
  507: 
  508: 
  509: sub upload_manager_javascript_forward_associate {
  510:     return(<<ENDPICK);
  511: function verify(vf,sec_caller) {
  512:     var founduname=0;
  513:     var foundpwd=0;
  514:     var foundname=0;
  515:     var foundid=0;
  516:     var foundsec=0;
  517:     var foundemail=0;
  518:     var tw;
  519:     for (i=0;i<=vf.nfields.value;i++) {
  520:         tw=eval('vf.f'+i+'.selectedIndex');
  521:         if (tw==1) { founduname=1; }
  522:         if ((tw>=2) && (tw<=6)) { foundname=1; }
  523:         if (tw==7) { foundid=1; }
  524:         if (tw==8) { foundsec=1; }
  525:         if (tw==9) { foundpwd=1; }
  526:         if (tw==10) { foundemail=1; }
  527:     }
  528:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
  529: }
  530: 
  531: //
  532: // vf = this.form
  533: // tf = column number
  534: //
  535: // values of nw
  536: //
  537: // 0 = none
  538: // 1 = username
  539: // 2 = names (lastname, firstnames)
  540: // 3 = fname (firstname)
  541: // 4 = mname (middlename)
  542: // 5 = lname (lastname)
  543: // 6 = gen   (generation)
  544: // 7 = id
  545: // 8 = section
  546: // 9 = ipwd  (password)
  547: // 10 = email address
  548: 
  549: function flip(vf,tf) {
  550:    var nw=eval('vf.f'+tf+'.selectedIndex');
  551:    var i;
  552:    // make sure no other columns are labeled the same as this one
  553:    for (i=0;i<=vf.nfields.value;i++) {
  554:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
  555:           eval('vf.f'+i+'.selectedIndex=0;')
  556:       }
  557:    }
  558:    // If we set this to 'lastname, firstnames', clear out all the ones
  559:    // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
  560:    if (nw==2) {
  561:       for (i=0;i<=vf.nfields.value;i++) {
  562:          if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
  563:              (eval('vf.f'+i+'.selectedIndex')<=6)) {
  564:              eval('vf.f'+i+'.selectedIndex=0;')
  565:          }
  566:       }
  567:    }
  568:    // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
  569:    // clear out any that are set to 'lastname, firstnames' (2)
  570:    if ((nw>=3) && (nw<=6)) {
  571:       for (i=0;i<=vf.nfields.value;i++) {
  572:          if (eval('vf.f'+i+'.selectedIndex')==2) {
  573:              eval('vf.f'+i+'.selectedIndex=0;')
  574:          }
  575:       }
  576:    }
  577:    // If we set the password, make the password form below correspond to 
  578:    // the new value.
  579:    if (nw==9) {
  580:        changed_radio('int',document.studentform);
  581:        set_auth_radio_buttons('int',document.studentform);
  582:        vf.intarg.value='';
  583:        vf.krbarg.value='';
  584:        vf.locarg.value='';
  585:    }
  586: }
  587: 
  588: function clearpwd(vf) {
  589:     var i;
  590:     for (i=0;i<=vf.nfields.value;i++) {
  591:         if (eval('vf.f'+i+'.selectedIndex')==9) {
  592:             eval('vf.f'+i+'.selectedIndex=0;')
  593:         }
  594:     }
  595: }
  596: 
  597: ENDPICK
  598: }
  599: 
  600: 
  601: 
  602: 
  603: sub upload_manager_javascript_reverse_associate {
  604:     return(<<ENDPICK);
  605: function verify(vf,sec_caller) {
  606:     var founduname=0;
  607:     var foundpwd=0;
  608:     var foundname=0;
  609:     var foundid=0;
  610:     var foundsec=0;
  611:     var tw;
  612:     for (i=0;i<=vf.nfields.value;i++) {
  613:         tw=eval('vf.f'+i+'.selectedIndex');
  614:         if (i==0 && tw!=0) { founduname=1; }
  615:         if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
  616:         if (i==6 && tw!=0) { foundid=1; }
  617:         if (i==7 && tw!=0) { foundsec=1; }
  618:         if (i==8 && tw!=0) { foundpwd=1; }
  619:     }
  620:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
  621: }
  622: 
  623: function flip(vf,tf) {
  624:    var nw=eval('vf.f'+tf+'.selectedIndex');
  625:    var i;
  626:    // picked the all one one name field, reset the other name ones to blank
  627:    if (tf==1 && nw!=0) {
  628:       for (i=2;i<=5;i++) {
  629:          eval('vf.f'+i+'.selectedIndex=0;')
  630:       }
  631:    }
  632:    //picked one of the piecewise name fields, reset the all in
  633:    //one field to blank
  634:    if ((tf>=2) && (tf<=5) && (nw!=0)) {
  635:       eval('vf.f1.selectedIndex=0;')
  636:    }
  637:    // intial password specified, pick internal authentication
  638:    if (tf==8 && nw!=0) {
  639:        changed_radio('int',document.studentform);
  640:        set_auth_radio_buttons('int',document.studentform);
  641:        vf.krbarg.value='';
  642:        vf.intarg.value='';
  643:        vf.locarg.value='';
  644:    }
  645: }
  646: 
  647: function clearpwd(vf) {
  648:     var i;
  649:     if (eval('vf.f8.selectedIndex')!=0) {
  650:         eval('vf.f8.selectedIndex=0;')
  651:     }
  652: }
  653: ENDPICK
  654: }
  655: 
  656: 
  657: 
  658: 
  659: sub print_upload_manager_footer {
  660:     my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
  661: 
  662:     my ($krbdef,$krbdefdom) =
  663:         &Apache::loncommon::get_kerberos_defaults($defdom);
  664:     my %param = ( formname => 'document.studentform',
  665:                   kerb_def_dom => $krbdefdom,
  666:                   kerb_def_auth => $krbdef
  667:                   );
  668:     if (exists($env{'form.ipwd_choice'}) &&
  669:         defined($env{'form.ipwd_choice'}) &&
  670:         $env{'form.ipwd_choice'} ne '') {
  671:         $param{'curr_authtype'} = 'int';
  672:     }
  673:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
  674:     my $intform = &Apache::loncommon::authform_internal(%param);
  675:     my $locform = &Apache::loncommon::authform_local(%param);
  676:     my $domform = &domain_form($defdom);
  677:     my $date_table = &date_setting_table();
  678:     my $Str = "</table>\n";
  679:     $Str .= &hidden_input('nfields',$i);
  680:     $Str .= &hidden_input('keyfields',$keyfields);
  681:     $Str .= '<h3>'.&mt('Login Type')."</h3>\n";
  682:     $Str .= "<p>\n".
  683:         &mt('Note: this will not take effect if the user already exists').
  684: 	&Apache::loncommon::help_open_topic('Auth_Options').
  685:         "</p><p>\n";
  686:     $Str .= $krbform."\n</p><p>\n".
  687:         $intform."\n</p><p>\n".
  688:         $locform."\n</p>\n";
  689:     $Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
  690:     $Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
  691:     $Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
  692:     $Str .= "<p>\n".$date_table."</p>\n";
  693:     $Str .= "<h3>".&mt('Full Update')."</h3>\n";
  694:     $Str .= '<label><input type="checkbox" name="fullup" value="yes">'.
  695:         ' '.&mt('Full update (also print list of users not enrolled anymore)').
  696:         "</label></p>\n";
  697:     $Str .= "<h3>".&mt('Student Number')."</h3>\n";
  698:     $Str .= "<p>\n".'<label><input type="checkbox" name="forceid" value="yes">';
  699:     $Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
  700:                 'of Conflicting IDs (only do if you know what you are doing)').
  701:                 "</label>\n</p><p>\n";
  702:     $Str .= '<input type="button"'. 
  703:               'onClick="javascript:verify(this.form,this.form.csec)" '.
  704:         'value="Update Class List" />'."<br />\n";
  705:     $Str .= &mt('Note: for large courses, this operation may be time '.
  706:                 'consuming');
  707:     $r->print($Str);
  708:     return;
  709: }
  710: 
  711: 
  712: 
  713: 
  714: sub print_upload_manager_form {
  715:     my $r=shift;
  716: 
  717:     my $firstLine;
  718:     my $datatoken;
  719:     if (!$env{'form.datatoken'}) {
  720:         $datatoken=&Apache::loncommon::upfile_store($r);
  721:     } else {
  722:         $datatoken=$env{'form.datatoken'};
  723:         &Apache::loncommon::load_tmp_file($r);
  724:     }
  725:     my @records=&Apache::loncommon::upfile_record_sep();
  726:     if($env{'form.noFirstLine'}){
  727:         $firstLine=shift(@records);
  728:     }
  729:     my $total=$#records;
  730:     my $distotal=$total+1;
  731:     my $today=time;
  732:     my $halfyear=$today+15552000;
  733:     #
  734:     # Restore memorized settings
  735:     &Apache::loncommon::restore_course_settings
  736:         ('enrollment_upload',{ 'username_choice' => 'scalar', # column settings
  737:                                'names_choice' => 'scalar',
  738:                                'fname_choice' => 'scalar',
  739:                                'mname_choice' => 'scalar',
  740:                                'lname_choice' => 'scalar',
  741:                                'gen_choice' => 'scalar',
  742:                                'id_choice' => 'scalar',
  743:                                'sec_choice' => 'scalar',
  744:                                'ipwd_choice' => 'scalar',
  745:                                'email_choice' => 'scalar',
  746:                            });
  747:     #
  748:     # Determine kerberos parameters as appropriate
  749:     my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
  750:     my ($krbdef,$krbdefdom) =
  751:         &Apache::loncommon::get_kerberos_defaults($defdom);
  752:     #
  753:     &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
  754:     my $i;
  755:     my $keyfields;
  756:     if ($total>=0) {
  757:         my @field=
  758:             (['username',&mt('Username'),     $env{'form.username_choice'}],
  759:              ['names',&mt('Last Name, First Names'),$env{'form.names_choice'}],
  760:              ['fname',&mt('First Name'),      $env{'form.fname_choice'}],
  761:              ['mname',&mt('Middle Names/Initials'),$env{'form.mname_choice'}],
  762:              ['lname',&mt('Last Name'),       $env{'form.lname_choice'}],
  763:              ['gen',  &mt('Generation'),      $env{'form.gen_choice'}],
  764:              ['id',   &mt('ID/Student Number'),$env{'form.id_choice'}],
  765:              ['sec',  &mt('Section'),          $env{'form.sec_choice'}],
  766:              ['ipwd', &mt('Initial Password'),$env{'form.ipwd_choice'}],
  767:              ['email',&mt('EMail Address'),   $env{'form.email_choice'}]);
  768: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
  769: 	    &Apache::loncommon::csv_print_samples($r,\@records);
  770: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
  771:                                                           \@field);
  772: 	    foreach (@field) { 
  773:                 $keyfields.=$_->[0].','; 
  774:             }
  775: 	    chop($keyfields);
  776: 	} else {
  777: 	    unshift(@field,['none','']);
  778: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
  779:                                                             \@field);
  780: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
  781: 	    $keyfields=join(',',sort(keys(%sone)));
  782: 	}
  783:     }
  784:     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
  785: }
  786: 
  787: 
  788: 
  789: 
  790: 
  791: sub enroll_single_student {
  792:     my ($r,$srcharray) = @_; 
  793:     # Remove non alphanumeric values from section
  794:     $env{'form.csec'}=~s/\W//g;
  795:     #
  796:     # We do the dates first because the action of making them the defaul
  797:     # in the course is entirely separate from the action of enrolling the
  798:     # student.  Also, a failure in setting the dates as default is not fatal
  799:     # to the process of enrolling / modifying a student.
  800:     my ($startdate,$enddate) = &Apache::lonuserutils::get_dates_from_form();
  801:     if ($env{'form.makedatesdefault'}) {
  802:         $r->print(&Apache::lonuserutils::make_dates_default($startdate,
  803:                                                             $enddate));
  804:     }
  805: 
  806:     $r->print('<h3>'.&mt('Enrolling Student').'</h3>');
  807:     $r->print('<p>'.&mt('Enrolling [_1] : [_2]',$env{'form.cuname'},
  808: 			$env{'form.lcdomain'}).'</p>');
  809:     if (($env{'form.cuname'})
  810: 	&& ($env{'form.cuname'} 
  811: 	    eq &LONCAPA::clean_username($env{'form.cuname'}))
  812: 	&& ($env{'form.lcdomain'})
  813: 	&& ($env{'form.lcdomain'}
  814: 	    eq &LONCAPA::clean_domain($env{'form.lcdomain'}))) {
  815:         # Deal with home server selection
  816:         my $domain=$env{'form.lcdomain'};
  817:         my $desiredhost = $env{'form.lcserver'};
  818:         if (lc($desiredhost) eq 'default') {
  819:             $desiredhost = undef;
  820:         } else {
  821:             my %home_servers =&Apache::lonnet::get_servers($domain,'library');
  822:             if (! exists($home_servers{$desiredhost})) {
  823:                 $r->print('<font color="#ff0000">'.&mt('Error').':</font>'.
  824:                           &mt('Invalid home server specified'));
  825:                 return;
  826:             }
  827:         }
  828:         $r->print(" ".&mt('with server')." $desiredhost :") if (defined($desiredhost));
  829:         # End of home server selection logic
  830: 	my $amode='';
  831:         my $genpwd='';
  832:         if ($env{'form.login'} eq 'krb') {
  833:            $amode='krb';
  834: 	   $amode.=$env{'form.krbver'};
  835:            $genpwd=$env{'form.krbarg'};
  836:         } elsif ($env{'form.login'} eq 'int') {
  837:            $amode='internal';
  838:            $genpwd=$env{'form.intarg'};
  839:         }  elsif ($env{'form.login'} eq 'loc') {
  840: 	    $amode='localauth';
  841: 	    $genpwd=$env{'form.locarg'};
  842: 	    if (!$genpwd) { $genpwd=" "; }
  843: 	}
  844:         my $home = &Apache::lonnet::homeserver($env{'form.cuname'},
  845:                                                    $env{'form.lcdomain'});
  846:         if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
  847:             # Clean out any old roles the student has in this class.
  848:             &Apache::lonuserutils::modifystudent($env{'form.lcdomain'},$env{'form.cuname'},
  849:                            $env{'request.course.id'},$env{'form.csec'},
  850:                             $desiredhost);
  851:             my $login_result = &Apache::lonnet::modifystudent
  852:                 ($env{'form.lcdomain'},$env{'form.cuname'},
  853:                  $env{'form.cstid'},$amode,$genpwd,
  854:                  $env{'form.cfirst'},$env{'form.cmiddle'},
  855:                  $env{'form.clast'},$env{'form.cgen'},
  856:                  $env{'form.csec'},$enddate,
  857:                  $startdate,$env{'form.forceid'},
  858:                  $desiredhost,$env{'form.emailaddress'});
  859:             if ($login_result =~ /^ok/) {
  860:                 $r->print($login_result);
  861:                 $r->print("<p> ".&mt('If active, the new role will be available when the student next logs in to LON-CAPA.')."</p>");
  862:             } else {
  863:                 $r->print(&mt('unable to enroll').": ".$login_result);
  864:             }
  865: 	} else {
  866:             $r->print('<p><font color="#ff0000">'.&mt('ERROR').'</font>&nbsp;');
  867:             if ($amode =~ /^krb/) {
  868:                 $r->print(&mt('Missing Kerberos domain information.').'  ');
  869:             } else {
  870:                 $r->print(&mt('Invalid login mode or password.').'  ');
  871:             }
  872:             $r->print('<b>'.&mt('Unable to enroll').' '.$env{'form.cuname'}.'.</b></p>');
  873:         }
  874:     } else {
  875:         $r->print(&mt('Invalid username or domain'));
  876:     }    
  877:     $r->print("<p><a href='/adm/dropadd?action=enrollstudent'>".&mt("Enroll another student")."</a></p>");
  878:     if (ref($srcharray) eq 'ARRAY') {
  879:         foreach my $item (@{$srcharray},'ccuname','ccdomain') {
  880:             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
  881:         }
  882:     }
  883:     foreach my $item ('sortby','seluname','seludom') {
  884:         if (exists($env{'form.'.$item})) {
  885:             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
  886:         }
  887:     }
  888:     $r->print('<input type="hidden" name="phase" value="get_user_info" />'."\n".
  889:               '<input type="hidden" name="currstate" value="" />'."\n".
  890:               '<input type="hidden" name="prevphase" value="" />'."\n".
  891:               '<input type="hidden" name="action" value="enrollstudent" />'."\n".
  892:               '<input type="hidden" name="state" value="gotusername" />');
  893: }
  894: 
  895: sub setup_date_selectors {
  896:     my ($starttime,$endtime,$mode) = @_;
  897:     if (! defined($starttime)) {
  898:         $starttime = time;
  899:         unless ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
  900:             if (exists($env{'course.'.$env{'request.course.id'}.
  901:                             '.default_enrollment_start_date'})) {
  902:                 $starttime = $env{'course.'.$env{'request.course.id'}.
  903:                                   '.default_enrollment_start_date'};
  904:             }
  905:         }
  906:     }
  907:     if (! defined($endtime)) {
  908:         $endtime = time+(6*30*24*60*60); # 6 months from now, approx
  909:         unless ($mode eq 'createcourse') {
  910:             if (exists($env{'course.'.$env{'request.course.id'}.
  911:                             '.default_enrollment_end_date'})) {
  912:                 $endtime = $env{'course.'.$env{'request.course.id'}.
  913:                                 '.default_enrollment_end_date'};
  914:             }
  915:         }
  916:     }
  917:     my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
  918:                                                             'startdate',
  919:                                                             $starttime);
  920:     my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
  921:                                                           'enddate',
  922:                                                           $endtime);
  923:     if ($mode eq 'create_enrolldates') {
  924:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  925:                                                             'startenroll',
  926:                                                             $starttime);
  927:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  928:                                                           'endenroll',
  929:                                                           $endtime);
  930:     }
  931:     if ($mode eq 'create_defaultdates') {
  932:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  933:                                                             'startaccess',
  934:                                                             $starttime);
  935:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  936:                                                           'endaccess',
  937:                                                           $endtime);
  938:     }
  939:     return ($startdateform,$enddateform);
  940: }
  941: 
  942: sub get_dates_from_form {
  943:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
  944:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate');
  945:     if ($env{'form.no_end_date'}) {
  946:         $enddate = 0;
  947:     }
  948:     return ($startdate,$enddate);
  949: }
  950: 
  951: sub date_setting_table {
  952:     my ($starttime,$endtime,$mode) = @_;
  953:     my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
  954:     my $dateDefault = '<nobr>'.
  955:         '<label><input type="checkbox" name="makedatesdefault" /> '.
  956:         &mt('make these dates the default for future enrollment').
  957: 	'</label></nobr>';
  958:     if ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
  959:         $dateDefault = '&nbsp;';
  960:     }
  961:     my $perpetual = '<nobr><label><input type="checkbox" name="no_end_date"';
  962:     if (defined($endtime) && $endtime == 0) {
  963:         $perpetual .= ' checked';
  964:     }
  965:     $perpetual.= ' /> '.&mt('no ending date').'</label></nobr>';
  966:     if ($mode eq 'create_enrolldates') {
  967:         $perpetual = '&nbsp;';
  968:     }
  969:     my $result = '';
  970:     $result .= "<table>\n";
  971:     $result .= '<tr><td align="right">'.&mt('Starting Date').'</td>'.
  972:         '<td>'.$startform.'</td>'.
  973:         '<td>'.$dateDefault.'</td>'."</tr>\n";
  974:     $result .= '<tr><td align="right">'.&mt('Ending Date').'</td>'.
  975:         '<td>'.$endform.'</td>'.
  976:         '<td>'.$perpetual.'</td>'."</tr>\n";
  977:     $result .= "</table>\n";
  978:     return $result;
  979: }
  980: 
  981: sub make_dates_default {
  982:     my ($startdate,$enddate) = @_;
  983:     my $result = '';
  984:     my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  985:     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
  986:     my $put_result = &Apache::lonnet::put('environment',
  987:             {'default_enrollment_start_date'=>$startdate,
  988:              'default_enrollment_end_date'  =>$enddate},$dom,$crs);
  989:     if ($put_result eq 'ok') {
  990:         $result .= "Set default start and end dates for course<br />";
  991:         #
  992:         # Refresh the course environment
  993:         &Apache::lonnet::coursedescription($env{'request.course.id'},
  994: 					   {'freshen_cache' => 1});
  995:     } else {
  996:         $result .= &mt('Unable to set default dates for course').":".$put_result.
  997:             '<br />';
  998:     }
  999:     return $result;
 1000: }
 1001: 
 1002: =pod
 1003: 
 1004: =item get_student_username_domain_form()
 1005:     
 1006:     Single student enrollment routines (some of them)
 1007: 
 1008: =cut
 1009: 
 1010: sub get_student_username_domain_form {
 1011:     my ($r,$elements,$response,$srch,$forcenewuser) =  @_;
 1012:     my $loaditems = {
 1013:             'onload' => "javascript:setFormElements(document.studentform)",
 1014:                      };
 1015:     $r->print(&header(undef,$loaditems));
 1016:     &Apache::lonhtmlcommon::add_breadcrumb
 1017:         ({href=>"javascript:backPage(document.studentform,'','')",
 1018:           text=>"Single user search"});
 1019:     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 1020:                                                   'Course_Add_Student'));
 1021:     my $defdom=$env{'request.role.domain'};
 1022: 
 1023:     my $jscript = &Apache::loncommon::studentbrowser_javascript()."\n".
 1024:         '<script type="text/javascript">'."\n".
 1025:         &Apache::lonhtmlcommon::set_form_elements($elements->{'studentform'}).
 1026:         '</script>'."\n";
 1027: 
 1028:     my %lt=&Apache::lonlocal::texthash(
 1029: 		    'eos'  => "Enroll One Student",
 1030: 		    'usr'  => "Username",
 1031:                     'dom'  => "Domain",
 1032:                     'been' => "Begin Enrollment",
 1033: 				       );
 1034:     $r->print(<<END);
 1035: $jscript
 1036: <h3>$lt{'eos'}</h3>
 1037: END
 1038:     $r->print($response);
 1039:     $r->print(&single_user_entry_form($defdom,$srch,$forcenewuser));
 1040:     return;
 1041: }
 1042: 
 1043: sub single_user_entry_form {
 1044:     my ($dom,$srch,$forcenewuser) = @_;
 1045:     my $userpicker =
 1046:        &Apache::loncommon::user_picker($dom,$srch,$forcenewuser,
 1047:                                        'document.studentform');
 1048:     my $srchbutton = &mt('Search');
 1049:     my $output = <<"ENDDOCUMENT";
 1050: <input type="hidden" name="action" value="enrollstudent" />
 1051: <input type="hidden" name="state" value="gotusername" />
 1052: <input type="hidden" name="phase" value="get_user_info" />
 1053: $userpicker
 1054: <input name="userrole" type="button" value="$srchbutton" onclick="javascript:validateEntry(document.studentform)" />
 1055: ENDDOCUMENT
 1056:     return $output;
 1057: }
 1058: 
 1059: sub print_enroll_single_student_form {
 1060:     my ($r,$jscript,$ccuname,$ccdomain,$srch) = @_;
 1061:     $r->print(&header($jscript));
 1062:     &Apache::lonhtmlcommon::add_breadcrumb
 1063:         ({href=>"javascript:backPage(document.studentform,'','')",
 1064:           text=>"Single user search"});
 1065:     if ($env{'form.phase'} eq 'userpicked') {
 1066:         &Apache::lonhtmlcommon::add_breadcrumb
 1067:      ({href=>"javascript:backPage(document.studentform,'get_user_info','select')",
 1068:        text=>"Select user",});
 1069:     }
 1070:     &Apache::lonhtmlcommon::add_breadcrumb
 1071:       ({href=>"javascript:backPage(document.studentform,'$env{'form.phase'}','modify')",
 1072:         text=>"Set enrollment",});
 1073:     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 1074:                                                   'Course_Add_Student'));
 1075:     $r->print("<h3>".&mt('Enroll One Student')."</h3>");
 1076:     #
 1077:     my $home = &Apache::lonnet::homeserver($ccuname,$ccdomain);
 1078:     # $new_user flags whether we are creating a new user or using an old one
 1079:     my $new_user = 1;
 1080:     if ($home ne 'no_host') {
 1081:         $new_user = 0;
 1082:     }
 1083:     #
 1084:     my $user_data_html = '';
 1085:     my $javascript_validations = '';
 1086:     if ($new_user) {
 1087:         my $usertoadd;
 1088:         my $instsrch = {
 1089:                          srchin => 'instd',
 1090:                          srchby => 'uname',
 1091:                          srchtype => 'exact',
 1092:                          srchterm => $ccuname,
 1093:                          srchdomain => $ccdomain,
 1094:                        };
 1095:         if (($instsrch->{'srchterm'} ne '') && ($instsrch->{'srchdomain'} ne '')) {
 1096:             $usertoadd = $instsrch->{'srchterm'}.':'.$instsrch->{'srchdomain'};
 1097:         }
 1098:         my (%dirsrch_results,%inst_results);
 1099:         if ($usertoadd) {
 1100:             if (&Apache::loncreateuser::directorysrch_check($instsrch) eq 'ok') {
 1101:                 %dirsrch_results = &Apache::lonnet::inst_directory_query($instsrch);
 1102:                 if (ref($dirsrch_results{$usertoadd}) eq 'HASH') {
 1103:                     %inst_results = %{$dirsrch_results{$usertoadd}};
 1104:                 }
 1105:             }
 1106:         }
 1107: 
 1108:         my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 1109:         # Set up authentication forms
 1110:         my ($krbdef,$krbdefdom) =
 1111:             &Apache::loncommon::get_kerberos_defaults($ccdomain);
 1112:         $javascript_validations = 
 1113:             &Apache::lonuserutils::javascript_validations('auth',$krbdefdom,
 1114:                                                       undef,undef,$ccdomain);
 1115:         my %param = ( formname => 'document.studentform',
 1116:                       kerb_def_dom => $krbdefdom,
 1117:                       kerb_def_auth => $krbdef
 1118:                       );
 1119:         my $krbform = &Apache::loncommon::authform_kerberos(%param);
 1120:         my $intform = &Apache::loncommon::authform_internal(%param);
 1121:         my $locform = &Apache::loncommon::authform_local(%param);
 1122:         #
 1123:         # Set up domain selection form
 1124:         my $homeserver_form = '';
 1125:         my %servers = &Apache::lonnet::get_servers($ccdomain,'library');
 1126:         $homeserver_form = '<select name="lcserver" size="1">'."\n".
 1127:             '<option value="default" selected>default</option>'."\n";
 1128:         while (my ($servername,$serverdescription) = each (%servers)) {
 1129:             $homeserver_form .= '<option value="'.$servername.'">'.
 1130:                 $serverdescription."</option>\n";
 1131:         }
 1132:         $homeserver_form .= "</select>\n";
 1133:         #
 1134:         #
 1135: 	my %lt=&Apache::lonlocal::texthash(
 1136: 		       'udf'  => "Personal Data",
 1137:                        'fn'   => "First Name",
 1138:                        'mn'   => "Middle Name",
 1139:                        'ln'   => "Last Name",
 1140:                        'gen'  => "Generation",
 1141:                        'hs'   => "Home Server",
 1142:                        'pswd' => "Login Data",
 1143: 		       'psam' => "Please select an authentication mechanism",
 1144:                        'mail' => "Email Address"
 1145: 					   );
 1146: 	my $authhelp=&Apache::loncommon::help_open_topic('Auth_Options');
 1147:         $user_data_html = <<END;
 1148: <h3>$lt{'udf'} $ccuname:$ccdomain</h3>
 1149: <table>
 1150: <tr><td class="LC_dropadd_labeltext"><label for="cfirst">$lt{'fn'}</label>:</td>
 1151:     <td><input type="text" name="cfirst" size="15" value="$inst_results{'firstname'}" /></td></tr>
 1152: <tr><td class="LC_dropadd_labeltext"><label for="cmiddle">$lt{'mn'}</label>:</td>
 1153:     <td><input type="text" name="cmiddle" size="15" value="$inst_results{'middlename'}" /></td></tr>
 1154: <tr><td class="LC_dropadd_labeltext"><label for="clast">$lt{'ln'}</label>:</td>
 1155:     <td><input type="text" name="clast" size="15" value="$inst_results{'lastname'}" /></td></tr>
 1156: <tr><td class="LC_dropadd_labeltext"><label for="cgen">$lt{'gen'}</label>:</td>
 1157:     <td><input type="text" name="cgen" size="5" value="$inst_results{'generation'}" /> </td></tr>
 1158: <tr><td class="LC_dropadd_labeltext"><label for="lcserver">$lt{'hs'}</label>:</td>
 1159:     <td>$homeserver_form</td></tr>
 1160: <tr><td class="LC_dropadd_labeltext"><label for="emailaddress">$lt{'mail'}</label>:</td>
 1161:     <td><input type="text" name="emailaddress" size="20" value="$inst_results{'permanentemail'}" /></td></tr>
 1162: </table>
 1163: <h3>$lt{'pswd'}</h3>
 1164: $lt{'psam'}$authhelp
 1165: <p>
 1166: END
 1167:         if ($krbform ne '') {
 1168:             $user_data_html .= $krbform.'<br />';
 1169:         }
 1170:         if ($intform ne '') {
 1171:             $user_data_html .= $intform.'<br />';
 1172:         }
 1173:         if ($locform ne '') {
 1174:             $user_data_html .= $locform.'<br />';
 1175:         }
 1176:         $user_data_html .= "\n</p>\n"
 1177:     } else {
 1178:         # User already exists.  Do not worry about authentication
 1179:         my %uenv = &Apache::lonnet::dump('environment',$ccdomain,$ccuname);
 1180:         $javascript_validations = &Apache::lonuserutils::javascript_validations('noauth');
 1181: 	my %lt=&Apache::lonlocal::texthash(
 1182: 		       'udf'  => "User Data for",
 1183:                        'fn'   => "First Name",
 1184:                        'mn'   => "Middle Name",
 1185:                        'ln'   => "Last Name",
 1186:                        'gen'  => "Generation",
 1187:                        'mail' => "Email Address",
 1188: 					   );
 1189:         $user_data_html = <<END;
 1190: <h3>$lt{'udf'} $ccuname:$ccdomain</h3>
 1191: <input type="hidden" name="lcserver" value="default" />
 1192: <table>
 1193: <tr><td class="LC_dropadd_labeltext"><label for="cfirst">$lt{'fn'}</label>:</td>
 1194:     <td><input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" /></td></tr>
 1195: <tr><td class="LC_dropadd_labeltext"><label for="cmiddle">$lt{'mn'}</label>:</td>
 1196:     <td><input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" /></td></tr>
 1197: <tr><td class="LC_dropadd_labeltext"><label for="clast">$lt{'ln'}</label>:</td>
 1198:     <td><input type="text" name="clast" value="$uenv{'lastname'}" size="15" /></td></tr>
 1199: <tr><td class="LC_dropadd_labeltext"><label for="cgen">$lt{'gen'}</label>:</td>
 1200:     <td><input type="text" name="cgen" value="$uenv{'generation'}" size="5"  /> </td></tr>
 1201: <tr><td class="LC_dropadd_labeltext"><label for="emailaddress">$lt{'mail'}</label>:</td>
 1202:     <td><input type="text" name="emailaddress" value="$uenv{'permanentemail'}" size="20" /></td></tr>
 1203: </table>
 1204: END
 1205:     }
 1206:     my $date_table = &Apache::lonuserutils::date_setting_table();
 1207:         # Print it all out
 1208:     my %lt=&Apache::lonlocal::texthash(
 1209: 		   'cd'   => "Course Data",
 1210:                    'gs'   => "Section",
 1211:                    'idsn' => "ID/Student Number",
 1212:                    'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
 1213:                    'eas'  => "Enroll as student",
 1214: 				       );
 1215:     $r->print(<<END);
 1216: <input type="hidden" name="action" value="enrollstudent" />
 1217: <input type="hidden" name="state"  value="gotusername" />
 1218: <input type="hidden" name="cuname" value="$ccuname" />
 1219: <input type="hidden" name="lcdomain" value="$ccdomain" />
 1220: <script type="text/javascript" language="Javascript">
 1221: function verify(vf,sec_caller) {
 1222:     var founduname=0;
 1223:     var foundpwd=0;
 1224:     var foundname=0;
 1225:     var foundid=0;
 1226:     var foundsec=0;
 1227:     var tw;
 1228:     if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && 
 1229: 	(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
 1230:         founduname=1;
 1231:     }
 1232:     if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
 1233: 	(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
 1234:         foundname=1;
 1235:     }
 1236:     if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
 1237:         foundsec=1;
 1238:         if (validate(sec_caller) == "error") {
 1239:             return;
 1240:         }
 1241:     }
 1242:     if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
 1243: 	foundid=1;
 1244:     }
 1245:     if (founduname==0) {
 1246: 	alert('You need to specify at least the username and domain fields');
 1247:         return;
 1248:     }
 1249:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
 1250: }
 1251: 
 1252: $javascript_validations
 1253: 
 1254: function clearpwd(vf) {
 1255:     //nothing else needs clearing
 1256: }
 1257: 
 1258: </script>
 1259: 
 1260: $user_data_html
 1261: 
 1262: <h3>$lt{'cd'}</h3>
 1263: 
 1264: <p><label for="csec">$lt{'gs'}</label>: <input type="text" name="csec" size="5" />
 1265: </p>
 1266: $date_table
 1267: <h3>$lt{'idsn'}</h3>
 1268: <p>
 1269: <label for="cstid">$lt{'idsn'}</label>: <input type="text" name="cstid" size="10" />
 1270: </p><p>
 1271: <label>
 1272: <input type="checkbox" name="forceid" value="yes" /> 
 1273: $lt{'disn'}
 1274: </label>
 1275: </p><p>
 1276: <input type="button" onClick="verify(this.form,this.form.csec)" value="$lt{'eas'}" />
 1277: </p>
 1278: END
 1279:     $r->print('<input type="hidden" name="currstate" value="" />'."\n".
 1280:               '<input type="hidden" name="phase" value="" />'."\n".
 1281:               '<input type="hidden" name="prevphase" value="'.$env{'form.phase'}.'" />'."\n");
 1282:     if (ref($srch) eq 'HASH') {
 1283:         foreach my $item (sort(keys(%{$srch}))) {
 1284:             $r->print('<input type="hidden" name="'.$item.'" value="'.$srch->{$item}.'" />'."\n");
 1285:         }
 1286:     }
 1287:     foreach my $item ('sortby','seluname','seludom') {
 1288:         if (exists($env{'form.'.$item})) {
 1289:             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
 1290:         }
 1291:     }
 1292:     return;
 1293: }
 1294: 
 1295: =pod
 1296: 
 1297: =item print_drop_menu()
 1298: 
 1299:     Menu Phase Two Drop
 1300: 
 1301: =cut
 1302: 
 1303: sub print_drop_menu {
 1304:     my $r=shift;
 1305:     $r->print("<h3>".&mt('Drop Students')."</h3>");
 1306:     my $cid=$env{'request.course.id'};
 1307:     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
 1308:     if (! defined($classlist)) {
 1309:         $r->print(&mt('There are no students currently enrolled.')."\n");
 1310:         return;
 1311:     }
 1312:     # Print out the available choices
 1313:     &show_drop_list($r,$classlist,$keylist);
 1314:     return;
 1315: }
 1316: 
 1317: 
 1318: =pod
 1319: 
 1320: =item print_html_classlist()
 1321: 
 1322:     view classlist
 1323: 
 1324: =cut
 1325: 
 1326: sub print_html_classlist {
 1327:     my ($r,$mode,$permission) = @_;
 1328:     if (! exists($env{'form.sortby'})) {
 1329:         $env{'form.sortby'} = 'username';
 1330:     }
 1331:     if ($env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
 1332:         $env{'form.Status'} = 'Active';
 1333:     }
 1334:     my $status_select = &Apache::lonhtmlcommon::StatusOptions
 1335:         ($env{'form.Status'});
 1336:     my $cid =$env{'request.course.id'};
 1337:     my $cdom=$env{'course.'.$cid.'.domain'};
 1338:     my $cnum=$env{'course.'.$cid.'.num'};
 1339:     #
 1340:     # List course personnel
 1341:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 1342:     #
 1343:     if (! defined($env{'form.output'}) ||
 1344:         $env{'form.output'} !~ /^(csv|excel|html)$/ ) {
 1345:         $env{'form.output'} = 'html';
 1346:     }
 1347:     #
 1348:     $r->print('<br />'.&Apache::loncommon::start_data_table());
 1349:     foreach my $role (sort keys %coursepersonnel) {
 1350:         next if ($role =~ /^\s*$/);
 1351: 	$r->print(&Apache::loncommon::start_data_table_row().
 1352: 		  '<td>'.$role.'</td><td>');
 1353:         foreach my $user (split(',',$coursepersonnel{$role})) {
 1354: 	    my ($puname,$pudom)=split(':',$user);
 1355: 	    $r->print(' '.&Apache::loncommon::aboutmewrapper(
 1356:                                     &Apache::loncommon::plainname($puname,
 1357:                                                                   $pudom),
 1358:                                                              $puname,$pudom));
 1359: 	}
 1360:         $r->print('</td>'.&Apache::loncommon::end_data_table_row());
 1361:     }
 1362:     $r->print(&Apache::loncommon::end_data_table());
 1363:     #
 1364:     # Interface output
 1365:     $r->print('<input type="hidden" name="action" value="'.
 1366:               $env{'form.action'}.'" />');
 1367:     $r->print("<p>\n");
 1368:     if ($env{'form.action'} ne 'modifystudent') {
 1369: 	my %lt=&Apache::lonlocal::texthash('csv' => "CSV",
 1370:                                            'excel' => "Excel",
 1371:                                            'html'  => 'HTML');
 1372:         my $output_selector = '<select size="1" name="output" >';
 1373:         foreach my $outputformat ('html','csv','excel') {
 1374:             my $option = '<option value="'.$outputformat.'" ';
 1375:             if ($outputformat eq $env{'form.output'}) {
 1376:                 $option .= 'selected ';
 1377:             }
 1378:             $option .='>'.$lt{$outputformat}.'</option>';
 1379:             $output_selector .= "\n".$option;
 1380:         }
 1381:         $output_selector .= '</select>';
 1382:         $r->print('<label>'.&mt('Output Format: [_1]',$output_selector).'</label>'.('&nbsp;'x3));
 1383:     }
 1384:     $r->print('<label>'.&mt('Student Status: [_1]',$status_select)."</label>\n");
 1385:     $r->print('<input type="submit" value="'.&mt('Update Display').'" />'.
 1386:               "\n</p>\n");
 1387:     #
 1388:     # Print the classlist
 1389:     $r->print('<h2>'.&mt('Current Class List').'</h2>');
 1390:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
 1391: 
 1392:     if (exists($permission->{'view_section'})) {
 1393: 	my $sec = &Apache::loncoursedata::CL_SECTION();	
 1394: 	foreach my $student (keys(%{$classlist})) {
 1395: 	    if ($classlist->{$student}[$sec] ne $permission->{'view_section'}) {
 1396: 		delete($classlist->{$student});
 1397: 	    }
 1398: 	}
 1399:     }
 1400: 
 1401:     if (! defined($classlist)) {
 1402:         $r->print(&mt('There are no students currently enrolled.')."\n");
 1403:     } else {
 1404:         # Print out the available choices
 1405:         if ($env{'form.action'} eq 'modifystudent') {
 1406:             &show_class_list($r,'view','modify',
 1407:                              $env{'form.Status'},$classlist,$keylist);
 1408:         } else {
 1409:             &show_class_list($r,$env{'form.output'},'aboutme',
 1410:                              $env{'form.Status'},$classlist,$keylist);
 1411:         }
 1412:     }
 1413: }
 1414: 
 1415: 
 1416: =pod
 1417: 
 1418: =item show_class_list()
 1419: 
 1420:     Show student list to drop
 1421: 
 1422: =cut
 1423: 
 1424: sub show_class_list {
 1425:     my ($r,$mode,$linkto,$statusmode,$classlist,$keylist)=@_;
 1426:     my $cid=$env{'request.course.id'};
 1427:     my $cdom = $env{'course.'.$cid.'.domain'};
 1428:     my $cnum = $env{'course.'.$cid.'.num'};
 1429:     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
 1430:                                               $classlist,$keylist,$cdom,$cnum);
 1431:     #
 1432:     # Variables for excel output
 1433:     my ($excel_workbook, $excel_sheet, $excel_filename,$row,$format);
 1434:     #
 1435:     # Variables for csv output
 1436:     my ($CSVfile,$CSVfilename);
 1437:     #
 1438:     my $sortby = $env{'form.sortby'};
 1439:     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end|type)$/) {
 1440:         $sortby = 'username';
 1441:     }
 1442:     if (! exists($env{'form.displayphotos'})) {
 1443:         $env{'form.displayphotos'} = 'off';
 1444:     }
 1445:     my $displayphotos = $env{'form.displayphotos'};
 1446: 
 1447:     if (! exists($env{'form.displayclickers'})) {
 1448:         $env{'form.displayclickers'} = 'off';
 1449:     }
 1450:     my $displayclickers = $env{'form.displayclickers'};
 1451: 
 1452:     # Print out header 
 1453:     unless ($mode eq 'autoenroll') {
 1454:         $r->print(<<END);
 1455: <input type="hidden" name="state" value="$env{'form.state'}" />
 1456: END
 1457:     }
 1458:     $r->print(<<END);
 1459: <input type="hidden" name="sortby" value="$sortby" />
 1460: <input type="hidden" name="displayphotos" value="$displayphotos" />
 1461: <input type="hidden" name="displayclickers" value="$displayclickers" />
 1462: END
 1463:     if ($mode eq 'html' || $mode eq 'view' || $mode eq 'autoenroll') {
 1464:         if ($linkto eq 'aboutme') {
 1465:             $r->print(&mt("Select a user name to view the user's personal page."));
 1466:         } elsif ($linkto eq 'modify') {
 1467:             $r->print(&mt("Select a user name to modify the student's information"));
 1468:         }
 1469: 	my %lt=&Apache::lonlocal::texthash(
 1470:                                            'usrn'   => "username",
 1471:                                            'dom'    => "domain",
 1472:                                            'sn'     => "student name",
 1473:                                            'sec'    => "section",
 1474:                                            'grp'    => "active groups",
 1475:                                            'start'  => "start date",
 1476:                                            'end'    => "end date",
 1477:                                            'type'   => "enroll type/action",
 1478: 					   'email'  => "email address",
 1479:                                            'clicker'=> "clicker id",
 1480:                                            'photo'  => "photo",
 1481: 					   );
 1482:         unless ($mode eq 'autoenroll') {
 1483:             $r->print(<<END);
 1484: <input type="hidden" name="sname"  value="" />
 1485: <input type="hidden" name="sdom"   value="" />
 1486: END
 1487:         }
 1488:         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
 1489:             $r->print('
 1490: <script type="text/javascript">
 1491: function photowindow(photolink) {
 1492:     var title = "Photo_Viewer";
 1493:     var options = "scrollbars=1,resizable=1,menubar=0";
 1494:     options += ",width=240,height=240";
 1495:     stdeditbrowser = open(photolink,title,options,"1");
 1496:     stdeditbrowser.focus();
 1497: }
 1498: </script>
 1499:            ');
 1500:         }
 1501:         $r->print("
 1502: <p>
 1503: ".&Apache::loncommon::start_data_table()."
 1504: <tr>
 1505:         ");
 1506:         if ($mode eq 'autoenroll') {
 1507:             $r->print("
 1508:  <th><a href=\"javascript:document.studentform.sortby.value='type';document.studentform.submit();\">$lt{'type'}</a></th>
 1509:             ");
 1510:         } else {
 1511:             $r->print("
 1512: <th>Count</th>
 1513:             ");
 1514:         }
 1515:         $r->print(<<END);
 1516:     <th>
 1517:        <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">$lt{'usrn'}</a>
 1518:     </th><th>
 1519:        <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">$lt{'dom'}</a>
 1520:     </th><th>
 1521:        <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
 1522:     </th><th>
 1523:        <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">$lt{'sn'}</a>
 1524:     </th><th>
 1525:        <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">$lt{'sec'}</a>
 1526:     </th><th>
 1527:        <a href="javascript:document.studentform.sortby.value='start';document.studentform.submit();">$lt{'start'}</a>
 1528:     </th><th>
 1529:        <a href="javascript:document.studentform.sortby.value='end';document.studentform.submit();">$lt{'end'}</a>
 1530:     </th><th>
 1531:        <a href="javascript:document.studentform.sortby.value='groups';document.studentform.submit();">$lt{'grp'}</a>
 1532:     </th><th>
 1533:        <a href="javascript:document.studentform.sortby.value='email';document.studentform.submit();">$lt{'email'}</a>
 1534:     </th>
 1535: END
 1536: 
 1537: # Clicker display on or off?
 1538: 
 1539:         my %clicker_options = &Apache::lonlocal::texthash(
 1540:                                                           'on' => 'Show',
 1541:                                                           'off' => 'Hide',
 1542:                                                          );
 1543:         my $clickerchg = 'on';
 1544:         if ($displayclickers eq 'on') {
 1545:             $clickerchg = 'off';
 1546:         }
 1547:         $r->print('    <th>'."\n".'     '.
 1548:             '<a href="javascript:document.studentform.displayclickers.value='.
 1549:                       "'".$clickerchg."'".';document.studentform.submit();">'.
 1550:                       $clicker_options{$clickerchg}.'</a>&nbsp;'.$lt{'clicker'}."\n".
 1551:                       '    </th>'."\n");
 1552: 
 1553: # Photo display on or off?
 1554:         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
 1555:             my %photo_options = &Apache::lonlocal::texthash(
 1556:                                                             'on' => 'Show',
 1557:                                                             'off' => 'Hide',
 1558:                                                             );
 1559:             my $photochg = 'on';
 1560:             if ($displayphotos eq 'on') {
 1561:                 $photochg = 'off';
 1562:             }
 1563:             $r->print('    <th>'."\n".'     '. 
 1564:             '<a href="javascript:document.studentform.displayphotos.value='.
 1565:                       "'".$photochg."'".';document.studentform.submit();">'.
 1566:                       $photo_options{$photochg}.'</a>&nbsp;'.$lt{'photo'}."\n".
 1567:                       '    </th>'."\n");
 1568:         }
 1569:         $r->print("  </tr>\n");
 1570: 
 1571: # Done with the HTML header line
 1572: 
 1573:     } elsif ($mode eq 'csv') {
 1574: 	#
 1575: 	# Open a file
 1576: 	$CSVfilename = '/prtspool/'.
 1577: 	    $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
 1578:             time.'_'.rand(1000000000).'.csv';
 1579: 	unless ($CSVfile = Apache::File->new('>/home/httpd'.$CSVfilename)) {
 1580: 	    $r->log_error("Couldn't open $CSVfilename for output $!");
 1581: 	    $r->print(&mt('Problems occurred in writing the csv file. '
 1582:                          .'This error has been logged. '
 1583:                          .'Please alert your LON-CAPA administrator.'));
 1584: 	    $CSVfile = undef;
 1585: 	}
 1586: 	#
 1587: 	# Write headers and data to file
 1588:         if($statusmode eq 'Expired') {
 1589:             print $CSVfile '"'.&mt('Students with expired roles').'"'."\n";
 1590:         }
 1591:         if($statusmode eq 'Future') {
 1592:             print $CSVfile '"'.&mt('Students with future roles').'"'."\n";
 1593:         }
 1594:         if ($statusmode eq 'Any') {
 1595:             print $CSVfile '"'.join('","',map {
 1596: 		&Apache::loncommon::csv_translate(&mt($_))
 1597:                 } ("username","domain","ID","student name",
 1598:                    "section","start date","end date","status",
 1599: 		   "active groups","email address"))
 1600:                   .'"'."\n";
 1601:         } else {
 1602:             print $CSVfile '"'.join('","',map {
 1603: 		&Apache::loncommon::csv_translate(&mt($_))
 1604:                 } ("username","domain","ID","student name",
 1605:                    "section","start date","end date",
 1606: 		   "active groups","email address")).'"'."\n";
 1607:         }
 1608:     } elsif ($mode eq 'excel') {
 1609:         # Create the excel spreadsheet
 1610:         ($excel_workbook,$excel_filename,$format) = 
 1611:             &Apache::loncommon::create_workbook($r);
 1612:         return if (! defined($excel_workbook));
 1613:         $excel_sheet = $excel_workbook->addworksheet('classlist');
 1614:         #
 1615:         my $description = 'Class List for '.
 1616:             $env{'course.'.$env{'request.course.id'}.'.description'};
 1617:         $excel_sheet->write($row++,0,$description,$format->{'h1'});
 1618:         #
 1619:         $excel_sheet->write($row++,0,["username","domain","ID",
 1620:                                       "student name","section",
 1621:                                       "start date","end date","status",
 1622:                                       "active groups","email address"],
 1623:                             $format->{'bold'});
 1624:     }
 1625: 
 1626: # Done with header lines in all formats
 1627: 
 1628:     #
 1629:     # Sort the students
 1630:     my %index;
 1631:     my $i;
 1632:     foreach (@$keylist) {
 1633:         $index{$_} = $i++;
 1634:     }
 1635:     $index{'groups'} = scalar(@{$keylist});
 1636:     my $index  = $index{$sortby};
 1637:     my $second = $index{'username'};
 1638:     my $third  = $index{'domain'};
 1639:     my @Sorted_Students = sort {
 1640:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
 1641:             ||
 1642:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
 1643:             ||
 1644:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
 1645:         } (keys(%$classlist));
 1646:     my $studentcount = 0;
 1647:     my $autocount = 0;
 1648:     my $manualcount = 0;
 1649:     my $unlockcount = 0;
 1650:     my $lockcount = 0;
 1651:     foreach my $student (@Sorted_Students) {
 1652:         my $sdata = $classlist->{$student};
 1653:         my $groups = $classgroups->{$student};
 1654:         my $username = $sdata->[$index{'username'}];
 1655:         my $domain   = $sdata->[$index{'domain'}];
 1656:         my $section  = $sdata->[$index{'section'}];
 1657:         my $active_groups;
 1658:         if (ref($groups->{active}) eq 'HASH') {
 1659:             $active_groups = join(', ',keys(%{$groups->{'active'}}));
 1660:         }
 1661:         my $name     = $sdata->[$index{'fullname'}];
 1662:         my $id       = $sdata->[$index{'id'}];
 1663:         my $status   = $sdata->[$index{'status'}];
 1664:         next if (($statusmode ne 'Any') && ($status ne $statusmode));
 1665:         my $start    = $sdata->[$index{'start'}];
 1666:         my $end      = $sdata->[$index{'end'}];
 1667:         my $type     = $sdata->[$index{'type'}];
 1668: 
 1669: 	my %emails   = &Apache::loncommon::getemails($username,$domain);
 1670: 	my $email;
 1671: 	if ($emails{'permanentemail'} =~ /\S/) {
 1672: 	    $email = $emails{'permanentemail'};
 1673: 	}
 1674: 
 1675:         if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
 1676:             if (! defined($start) || $start == 0) {
 1677:                 $start = &mt('none');
 1678:             } else {
 1679:                 $start = &Apache::lonlocal::locallocaltime($start);
 1680:             }
 1681:             if (! defined($end) || $end == 0) {
 1682:                 $end = &mt('none');
 1683:             } else {
 1684:                 $end = &Apache::lonlocal::locallocaltime($end);
 1685:             }
 1686: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1687:             if ($mode eq 'autoenroll') {
 1688:                 my $lockedtype = $sdata->[$index{'lockedtype'}];
 1689:                 $studentcount++;
 1690:                 my $cellentry;
 1691:                 if ($type eq 'auto') {
 1692:                     $cellentry = '<b>'.&mt('auto').'</b>&nbsp;<label><input type="checkbox" name="chgauto" value="'.$username.':'.$domain.'" />&nbsp;Change</label>';
 1693:                     $autocount ++;
 1694:                 } else {
 1695:                     $cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><nobr><label><input type="checkbox" name="chgmanual" value="'.$username.':'.$domain.'" />&nbsp;Change</label></nobr></td></tr><tr><td><nobr>';
 1696:                     $manualcount ++;
 1697:                     if ($lockedtype) {
 1698:                         $cellentry .= '<label><input type="checkbox" name="unlockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Unlock').'</label>';
 1699:                         $unlockcount ++;
 1700:                     } else {
 1701:                         $cellentry .= '<label><input type="checkbox" name="lockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Lock').'</label>';
 1702:                         $lockcount ++;
 1703:                     }
 1704:                     $cellentry .= '</nobr></td></tr></table>';
 1705:                 }
 1706:                 $r->print("<td>$cellentry<td>\n    ");
 1707:             } else {
 1708:                 $r->print("<td>".(++$studentcount)."</td><td>\n    ");
 1709:             }
 1710:             if ($linkto eq 'nothing') {
 1711:                 $r->print($username);
 1712:             } elsif ($linkto eq 'aboutme') {
 1713:                 $r->print(&Apache::loncommon::aboutmewrapper($username,
 1714:                                                              $username,
 1715:                                                              $domain));
 1716:             } elsif ($linkto eq 'modify') {
 1717:                 $r->print('<a href="'.
 1718:                           "javascript:document.studentform.sname.value='".
 1719:                           $username.
 1720:                           "';document.studentform.sdom.value='".$domain.
 1721:                           "';document.studentform.state.value='selected".
 1722:                           "';document.studentform.submit();".'">'.
 1723:                           $username."</a>\n");
 1724:             }
 1725:             $r->print(<<"END");
 1726:     </td>
 1727:     <td>$domain</td>
 1728:     <td>$id</td>
 1729:     <td>$name</td>
 1730:     <td>$section</td>
 1731:     <td>$start</td>
 1732:     <td>$end</td>
 1733:     <td>$active_groups</td>
 1734:     <td>$email</td>
 1735: END
 1736: 
 1737: # Clickers
 1738:             if ($displayclickers eq 'on') {
 1739:                my $clickers =
 1740:                (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
 1741:                if ($clickers!~/\w/) { $clickers='-'; }
 1742:                $r->print('<td>'.$clickers.'</td>');
 1743:             } else {
 1744:                 $r->print('    <td>&nbsp;</td>  ');
 1745:             }
 1746: 
 1747: # Photos
 1748: 
 1749:             if ($env{'course.'.$env{'request.course.id'}.
 1750: 			 '.internal.showphoto'}) {
 1751:                 if ($displayphotos eq 'on') {
 1752:                     my $imgurl = 
 1753: 			&Apache::lonnet::retrievestudentphoto($domain,
 1754: 							      $username,'gif',
 1755: 							      'thumbnail');
 1756:                 
 1757:                     $r->print('    <td align="right"><a href="javascript:photowindow('."'".&Apache::lonnet::studentphoto($domain,$username,'jpg')."'".')"><img src="'.$imgurl.'" border="1"></a></td>');
 1758:                 } else {
 1759:                     $r->print('    <td>&nbsp;</td>  ');
 1760:                 }
 1761:             }
 1762: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1763:         } elsif ($mode eq 'csv') {
 1764:             next if (! defined($CSVfile));
 1765:             # no need to bother with $linkto
 1766:             if (! defined($start) || $start == 0) {
 1767:                 $start = &mt('none');
 1768:             } else {
 1769:                 $start = &Apache::lonlocal::locallocaltime($start);
 1770:             }
 1771:             if (! defined($end) || $end == 0) {
 1772:                 $end = &mt('none');
 1773:             } else {
 1774:                 $end = &Apache::lonlocal::locallocaltime($end);
 1775:             }
 1776:             my @line = ();
 1777:             foreach ($username,$domain,$id,$name,$section,$start,$end) {
 1778:                 push @line,&Apache::loncommon::csv_translate($_);
 1779:             }
 1780:             if ($statusmode eq 'Any') {
 1781:                 push @line,&Apache::loncommon::csv_translate($status);
 1782:             }
 1783:             push @line,&Apache::loncommon::csv_translate($active_groups);
 1784:             push @line,&Apache::loncommon::csv_translate($email);
 1785:             print $CSVfile '"'.join('","',@line).'"'."\n";
 1786:         } elsif ($mode eq 'excel') {
 1787:             $excel_sheet->write($row,0,[$username,$domain,$id,
 1788:                                           $name,$section]);
 1789:             my $col = 5;
 1790:             foreach my $time ($start,$end) {
 1791:                 if (defined($time) && $time != 0) {
 1792:                     $excel_sheet->write($row,$col++,
 1793:                                    &Apache::lonstathelpers::calc_serial($time),
 1794:                                     $format->{'date'});
 1795:                 } else {
 1796:                     $excel_sheet->write($row,$col++,'none');
 1797:                 }                    
 1798:             }
 1799:             $excel_sheet->write($row,$col++,$status);
 1800:             $excel_sheet->write($row,$col++,$active_groups);
 1801:             $excel_sheet->write($row,$col++,$email);
 1802:             $row++;
 1803:         }
 1804:     }
 1805:     if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
 1806: 	$r->print(&Apache::loncommon::end_data_table().'<br />');
 1807:     } elsif ($mode eq 'excel') {
 1808:         $excel_workbook->close();
 1809:         $r->print('<p><a href="'.$excel_filename.'">'.
 1810:                   &mt('Your Excel spreadsheet').'</a> '.&mt('is ready for download').'.</p>'."\n");
 1811:     } elsif ($mode eq 'csv') {
 1812:         close($CSVfile);
 1813:         $r->print('<a href="'.$CSVfilename.'">'.
 1814:                   &mt('Your CSV file').'</a> is ready for download.'.
 1815:                   "\n");
 1816:         $r->rflush();
 1817:     }
 1818:     if ($mode eq 'autoenroll') {
 1819:         return ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount);
 1820:     }
 1821:     return;
 1822: }
 1823: 
 1824: 
 1825: =pod
 1826: 
 1827: =item print_modify_student_form()
 1828: 
 1829:     print out form for modification of a single students data
 1830: 
 1831: =cut
 1832: 
 1833: sub print_modify_student_form {
 1834:     my $r = shift();
 1835:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1836:                                             ['sdom','sname']);    
 1837:     my $sname  = $env{'form.sname'};
 1838:     my $sdom   = $env{'form.sdom'};
 1839:     my $sortby = $env{'form.sortby'};
 1840:     # determine the students name information
 1841:     my %info=&Apache::lonnet::get('environment',
 1842:                                   ['firstname','middlename',
 1843:                                    'lastname','generation','id',
 1844:                                    'permanentemail'], $sdom, $sname);
 1845:     my ($tmp) = keys(%info);
 1846:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1847:         $r->print('<font color="#ff0000" size="+2">'.&mt('Error').'</font>'.
 1848:                   '<p>'.
 1849:                   &mt('Unable to retrieve environment data for').' '.$sname.
 1850:                   &mt('in domain').' '.$sdom.'</p><p>'.
 1851:                   &mt('Please contact your LON-CAPA administrator regarding this situation.').'</p>'.&Apache::loncommon::end_page());
 1852:         return;
 1853:     }
 1854:     # determine the students starting and ending times and section
 1855:     my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
 1856:     if ($starttime =~ /^error/) {
 1857:         $r->print('<h2>'&mt('Error').'</h2>');
 1858:         $r->print('<p>'.$starttime.'</p>');
 1859:         return;
 1860:     }
 1861:     #
 1862:     # Deal with date forms
 1863:     my $current_date_description = '';
 1864:     my $textdate = '';
 1865: 
 1866:     if (! defined($starttime) || $starttime == 0) {
 1867:         $current_date_description = &mt('Current Starting Date: not set').
 1868:             '<br />';
 1869:     } else {
 1870:         $current_date_description = 
 1871:             &mt('Current Starting Date: [_1]',
 1872:                 &Apache::lonlocal::locallocaltime($starttime)).'<br />';
 1873:     }
 1874:     if (! defined($endtime) || $endtime == 0) {
 1875:         $current_date_description.= &mt('Current Ending Date: not set').
 1876:             '<br />';
 1877:     } else {
 1878:         $current_date_description.= 
 1879:             &mt('Current Ending Date: [_1]',
 1880:                 &Apache::lonlocal::locallocaltime($endtime)).'<br />';
 1881: 
 1882:     }
 1883:     my $date_table = 
 1884:         &Apache::lonuserutils::date_setting_table($starttime,$endtime);
 1885:     #
 1886:     if (! exists($env{'form.Status'}) || 
 1887:         $env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
 1888:         $env{'form.Status'} = 'crap';
 1889:     }
 1890:     # Make sure student is enrolled in course
 1891:     my %lt=&Apache::lonlocal::texthash(
 1892: 	           'mef'   => "Modify Enrollment for",
 1893:                    'odcc'  => "Only domain coordinators can change a users password.",
 1894:                    'sn'    => "Student Name",
 1895:                    'fn'    => "First",
 1896:                    'mn'    => "Middle",
 1897:                    'ln'    => "Last",
 1898:                    'gen'   => "Generation",
 1899:                    'email' => "E-mail address",
 1900:                    'sid'   => "Student ID",
 1901:                    'disn'  => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
 1902:                    'sec'   => "Section",
 1903:                    'sm'    => "Submit Modifications",
 1904: 				       );
 1905: # Check if section name is valid
 1906:     my $section_check = &Apache::lonuserutils::section_check_js();
 1907:     $r->print(<<"END");
 1908: <script type="text/javascript">
 1909: $section_check
 1910: function secverify(formname,caller) {
 1911:     if (validate(caller) == "error") {
 1912:         return;
 1913:     } else {
 1914:         formname.submit();
 1915:     }
 1916: }
 1917: </script>
 1918: <p>
 1919: <font size="+1">
 1920: $lt{'odcc'}
 1921: </font>
 1922: </p>
 1923: <input type="hidden" name="slogin"  value="$sname"  />
 1924: <input type="hidden" name="sdomain" value="$sdom" />
 1925: <input type="hidden" name="action"  value="modifystudent" />
 1926: <input type="hidden" name="state"   value="done" />
 1927: <input type="hidden" name="sortby"  value="$sortby" />
 1928: <input type="hidden" name="Status"  value="$env{'form.Status'}" />
 1929: <h3>$lt{'mef'} $info{'firstname'} $info{'middlename'} 
 1930: $info{'lastname'} $info{'generation'}, $sname:$sdom</h3>
 1931: <p>
 1932: <b>$lt{'sn'}</b>
 1933: <table>
 1934: <tr><th>$lt{'fn'}</th><th>$lt{'mn'}</th><th>$lt{'ln'}</th><th>$lt{'gen'}</th></tr>
 1935: <tr><td>
 1936: <input type="text" name="firstname"  value="$info{'firstname'}"  /></td><td>
 1937: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
 1938: <input type="text" name="lastname"   value="$info{'lastname'}"   /></td><td>
 1939: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
 1940: </table>
 1941: </p><p>
 1942: <b>$lt{'email'}</b>: <input type="text" name="permanentemail" value="$info{'permanentemail'}" size="30" />
 1943: </p><p>
 1944: <b>$lt{'sid'}</b>: <input type="text" name="id" value="$info{'id'}" size="12" />
 1945: </p><p>
 1946: <label>
 1947: <input type="checkbox" name="forceid" /> 
 1948: $lt{'disn'}
 1949: </label>
 1950: </p><p>
 1951: <b>$lt{'sec'}</b>: <input type="text" name="section" value="$section" size="14" />
 1952: </p>
 1953: <p>$current_date_description</p>
 1954: <p>$date_table</p>
 1955: <input type="button" value="$lt{'sm'}" onClick="secverify(this.form,this.form.section)" />
 1956: END
 1957:     $r->print(&Apache::loncommon::end_page());
 1958:     return;
 1959: }
 1960: 
 1961: 
 1962: =pod 
 1963: 
 1964: =item modify_single_student()
 1965: 
 1966:     modify a single students section 
 1967: 
 1968: =cut
 1969: 
 1970: sub modify_single_student {
 1971:     my ($r) = @_;
 1972:     #
 1973:     # Remove non alphanumeric values from the section
 1974:     $env{'form.section'} =~ s/\W//g;
 1975:     #
 1976:     # Do the date defaults first
 1977:     my ($starttime,$endtime) = &Apache::lonuserutils::get_dates_from_form();
 1978:     if ($env{'form.makedatesdefault'}) {
 1979:         $r->print(&Apache::lonuserutils::make_dates_default($starttime,
 1980:                                                             $endtime));
 1981:     }
 1982:     # Get the 'sortby' and 'Status' variables so the user goes back to their
 1983:     # previous screen
 1984:     my $sortby = $env{'form.sortby'};
 1985:     my $status = $env{'form.Status'};
 1986:     #
 1987:     # We always need this information
 1988:     my $slogin     = $env{'form.slogin'};
 1989:     my $sdom       = $env{'form.sdomain'};
 1990:     #
 1991:     # Get the old data
 1992:     my %old=&Apache::lonnet::get('environment',
 1993:                                  ['firstname','middlename',
 1994:                                   'lastname','generation','id',
 1995:                                   'permanentemail'],$sdom, $slogin);
 1996:     $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
 1997:                                                   $env{'request.course.id'});
 1998:     my ($tmp) = keys(%old);
 1999:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 2000:         $r->print(&mt('There was an error determining the environment values for')." $slogin : $sdom.");
 2001:         return;
 2002:     }
 2003:     undef $tmp;
 2004:     #
 2005:     # Get the new data
 2006:     my $firstname  = $env{'form.firstname'};
 2007:     my $middlename = $env{'form.middlename'};
 2008:     my $lastname   = $env{'form.lastname'};
 2009:     my $generation = $env{'form.generation'};
 2010:     my $permanentemail = $env{'form.permanentemail'};
 2011:     my $section    = $env{'form.section'};
 2012:     my $courseid   = $env{'request.course.id'};
 2013:     my $sid        = $env{'form.id'};
 2014:     my $displayable_starttime = localtime($starttime);
 2015:     my $displayable_endtime   = localtime($endtime);
 2016:     # 
 2017:     # check for forceid override
 2018:     if ((defined($old{'id'})) && ($old{'id'} ne '') && 
 2019:         ($sid ne $old{'id'}) && (! exists($env{'form.forceid'}))) {
 2020:         $r->print("<font color=\"ff0000\">".&mt('You changed the students id but did not disable the ID change safeguard. The students id will not be changed.')."</font>");
 2021:         $sid = $old{'id'};
 2022:     }
 2023:     #
 2024:     # talk to the user about what we are going to do
 2025:     my %lt=&Apache::lonlocal::texthash(
 2026: 	           'mdu'   => "Modifying data for user",
 2027:                    'si'    => "Student Information",
 2028:                    'fd'    => "Field",
 2029:                    'ov'    => "Old Value",
 2030:                    'nv'    => "New Value",
 2031:                    'fn'    => "First name",
 2032:                    'mn'    => "Middle name",
 2033:                    'ln'    => "Last name",
 2034:                    'gen'   => "Generation",
 2035:                    'em'    => "E-mail address",
 2036:                    'sec'   => "Section",
 2037:                    'ri'    => "Role Information",
 2038:                    'st'    => "Start Time",
 2039:                    'et'    => "End Time",
 2040: 				       );
 2041:     $r->print(<<END);
 2042:     <h3>$lt{'mdu'} $slogin:$sdom </h3>
 2043: END
 2044:     $r->print(<<END);
 2045: <table>
 2046:  <tr>
 2047:   <td>
 2048:     <table class="LC_nested_outer">
 2049:      <tr>
 2050:       <th>$lt{si}</th>
 2051:      </tr>
 2052:      <tr>
 2053:       <td>
 2054:        <table class="LC_nested">
 2055:         <tr class="LC_info_row">
 2056:          <td class="LC_left_item"> $lt{'fd'} </td>
 2057:          <td class="LC_left_item"> $lt{'ov'} </td>
 2058:          <td class="LC_left_item"> $lt{'nv'} </td>
 2059:         </tr>
 2060:         <tr class="LC_odd_row">
 2061:          <td class="LC_left_item"> <b>$lt{'fn'}</b> </td>
 2062:          <td class="LC_left_item"> $old{'firstname'} </td>
 2063:          <td class="LC_left_item"> $firstname </td>
 2064:         </tr>
 2065:         <tr>
 2066:          <td class="LC_left_item"> <b>$lt{'mn'}</b> </td>
 2067:          <td class="LC_left_item"> $old{'middlename'} </td>
 2068:          <td class="LC_left_item"> $middlename </td>
 2069:         </tr>
 2070:         <tr class="LC_odd_row">
 2071:          <td class="LC_left_item"> <b>$lt{'ln'}</b> </td>
 2072:          <td class="LC_left_item"> $old{'lastname'} </td>
 2073:          <td class="LC_left_item"> $lastname </td>
 2074:         </tr>
 2075:         <tr>
 2076:          <td class="LC_left_item"> <b>$lt{'gen'}</b> </td>
 2077:          <td class="LC_left_item"> $old{'generation'} </td>
 2078:          <td class="LC_left_item"> $generation </td>
 2079:         </tr>
 2080:         <tr class="LC_odd_row">
 2081:          <td class="LC_left_item"> <b>ID</b> </td>
 2082:          <td class="LC_left_item"> $old{'id'} </td>
 2083:          <td class="LC_left_item"> $sid </td>
 2084:         </tr>
 2085:         <tr>
 2086:          <td class="LC_left_item"> <b>$lt{'em'}</b> </td>
 2087:          <td class="LC_left_item"> $old{'permanentemail'} </td>
 2088:          <td class="LC_left_item"> $permanentemail </td>
 2089:         <tr class="LC_odd_row">
 2090:          <td> <b>$lt{'sec'}</b> </td>
 2091:          <td> $old{'section'} </td>
 2092:          <td> $section</td>
 2093:         </tr>
 2094:        </table>
 2095:       </td>
 2096:      </tr>
 2097:    </table>
 2098:    <br />
 2099:    <table class="LC_nested_outer">
 2100:      <tr>
 2101:       <th>$lt{'ri'}</th>
 2102:      </tr>
 2103:      <tr>
 2104:       <td>
 2105:        <table class="LC_nested">
 2106:         <tr class="LC_odd_row">
 2107:          <td class="LC_left_item"><b>$lt{'st'}:</b></td>
 2108:          <td class="LC_right_item"> $displayable_starttime </td>
 2109:         </tr>
 2110:         <tr>
 2111:          <td class="LC_left_item"><b>$lt{'et'}:</b></td>
 2112:          <td class="LC_right_item"> $displayable_endtime   </td>
 2113:         </tr>
 2114:        </table>
 2115:       </td>
 2116:      </tr>
 2117:     </table>
 2118:   </td>
 2119:  </tr>
 2120: </table>
 2121: <p>
 2122: END
 2123:     #
 2124:     # Send request(s) to modify data (final undef is for 'desiredhost',
 2125:     # which is a moot point because the student already has an account.
 2126:     my $modify_section_results = 
 2127:         &Apache::lonuserutils::modifystudent($sdom,$slogin,
 2128:                                              $env{'request.course.id'},
 2129:                                              $section,undef);
 2130:     if ($modify_section_results !~ /^ok/) {
 2131:         $r->print(&mt('An error occurred during the attempt to change the section for this student.')."<br />");
 2132:     }
 2133:     my $roleresults = &Apache::lonnet::modifystudent
 2134:         ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
 2135:          $generation,$section,$endtime,$starttime,$env{'form.forceid'},
 2136:          undef,$permanentemail);
 2137:     if ($old{'permanentemail'} ne $permanentemail) {
 2138:         &Apache::loncommon::flush_email_cache($slogin,$sdom);
 2139:     }
 2140:     if ($roleresults eq 'refused' ) {
 2141:         $r->print(&mt('Your request to change the role information for this student was refused. You do not appear to have sufficient authority to change student information.'));
 2142:     } elsif ($roleresults !~ /ok/) {
 2143:         $r->print(&mt('An error occurred during the attempt to change the role information for this student.')."  <br />".
 2144:                   &mt('The error reported was')." ".
 2145:                   $roleresults);
 2146:         &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
 2147:                                  " data for ".$slogin." : ".$sdom." by ".
 2148:                                  $env{'user.name'}." : ".$env{'user.domain'}.
 2149:                                  ":".$roleresults);
 2150:     } else { # everything is okay!
 2151:         $r->print(&mt('Student information updated successfully.')." <br />".
 2152:                   &mt('The student must log out and log in again to see these changes.'));
 2153:     }
 2154:     my $Masd=&mt('Modify another students data');
 2155:     $r->print(<<END);
 2156: </p><p>
 2157: <input type="hidden" name="action" value="modifystudent" />
 2158: <input type="hidden" name="sortby" value="$sortby" />
 2159: <input type="hidden" name="Status" value="$status" />
 2160: <a href="javascript:document.studentform.submit();">$Masd</a>
 2161: END
 2162:     $r->print(&Apache::loncommon::end_page());
 2163:     return;
 2164: }
 2165: 
 2166: sub get_enrollment_data {
 2167:     my ($sname,$sdomain) = @_;
 2168:     my $courseid = $env{'request.course.id'};
 2169:     my $cdom = $env{'course.'.$courseid.'.domain'};
 2170:     my $cnum = $env{'course.'.$courseid.'.num'};
 2171:     my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
 2172:     my ($tmp) = keys(%roles);
 2173:     # Bail out if we were unable to get the students roles
 2174:     return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
 2175:     # Go through the roles looking for enrollment in this course
 2176:     my ($end,$start) = (undef,undef);
 2177:     my $section = '';
 2178:     my $count = scalar(keys(%roles));
 2179:     while (my ($course,$role) = each(%roles)) {
 2180:         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E/*\s*(\w+)*_st$} ) {
 2181:             #
 2182:             # Get active role
 2183:             $section=$1;
 2184:             (undef,$end,$start)=split(/\_/,$role);
 2185:             my $now=time;
 2186:             my $notactive=0;
 2187:             if ($start) {
 2188:                 if ($now<$start) { $notactive=1; }
 2189:             }
 2190:             if ($end) {
 2191:                 if ($now>$end) { $notactive=1; }
 2192:             } 
 2193:             unless ($notactive) { return ($start,$end,$section); }
 2194:         }
 2195:     }
 2196:     return ($start,$end,$section);
 2197: }
 2198: 
 2199: 
 2200: =pod
 2201: 
 2202: =item show_drop_list()
 2203: 
 2204: Display a list of students to drop
 2205: Inputs: 
 2206: 
 2207: =over 4
 2208: 
 2209: =item $r, Apache request
 2210: 
 2211: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
 2212: 
 2213: =item $keylist, array pointer returned from loncoursedata::get_classlist() 
 2214: which describes the order elements are stored in the %$classlist values.
 2215: 
 2216: =item $nosort, if true, sorting links are omitted.
 2217: 
 2218: =back
 2219: 
 2220: =cut
 2221: 
 2222: sub show_drop_list {
 2223:     my ($r,$classlist,$keylist,$nosort)=@_;
 2224:     my $cid=$env{'request.course.id'};
 2225:     if (! exists($env{'form.sortby'})) {
 2226:         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2227:                                                 ['sortby']);
 2228:     }
 2229:     my $sortby = $env{'form.sortby'};
 2230:     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end)$/) {
 2231:         $sortby = 'username';
 2232:     }
 2233:     my $cdom = $env{'course.'.$cid.'.domain'};
 2234:     my $cnum = $env{'course.'.$cid,'.num'};
 2235:     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
 2236:                                               $classlist,$keylist,$cdom,$cnum);
 2237:     #
 2238:     my $action = "drop";
 2239:     $r->print(<<END);
 2240: <input type="hidden" name="sortby" value="$sortby" />
 2241: <input type="hidden" name="action" value="$action" />
 2242: <input type="hidden" name="state"  value="done" />
 2243: <script>
 2244: function checkAll(field) {
 2245:     for (i = 0; i < field.length; i++)
 2246:         field[i].checked = true ;
 2247: }
 2248: 
 2249: function uncheckAll(field) {
 2250:     for (i = 0; i < field.length; i++)
 2251:         field[i].checked = false ;
 2252: }
 2253: </script>
 2254: <p>
 2255: <input type="hidden" name="phase" value="four">
 2256: END
 2257: 
 2258: my %lt=&Apache::lonlocal::texthash('usrn'   => "username",
 2259:                                    'dom'    => "domain",
 2260:                                    'sn'     => "student name",
 2261:                                    'sec'    => "section",
 2262:                                    'start'  => "start date",
 2263:                                    'end'    => "end date",
 2264:                                    'groups' => "active groups",
 2265:                                    );
 2266:     if ($nosort) {
 2267: 	$r->print(&Apache::loncommon::start_data_table());
 2268:         $r->print(<<END);
 2269: <tr>
 2270:     <th>&nbsp;</th>
 2271:     <th>$lt{'usrn'}</th>
 2272:     <th>$lt{'dom'}</th>
 2273:     <th>ID</th>
 2274:     <th>$lt{'sn'}</th>
 2275:     <th>$lt{'sec'}</th>
 2276:     <th>$lt{'start'}</th>
 2277:     <th>$lt{'end'}</th>
 2278:     <th>$lt{'groups'}</th>
 2279: </tr>
 2280: END
 2281: 
 2282:     } else  {
 2283: 	$r->print(&Apache::loncommon::start_data_table());
 2284:         $r->print(<<END);
 2285: <tr><th>&nbsp;</th>
 2286:     <th>
 2287:        <a href="/adm/dropadd?action=$action&sortby=username">$lt{'usrn'}</a>
 2288:     </th><th>
 2289:        <a href="/adm/dropadd?action=$action&sortby=domain">$lt{'dom'}</a>
 2290:     </th><th>
 2291:        <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
 2292:     </th><th>
 2293:        <a href="/adm/dropadd?action=$action&sortby=fullname">$lt{'sn'}</a>
 2294:     </th><th>
 2295:        <a href="/adm/dropadd?action=$action&sortby=section">$lt{'sec'}</a>
 2296:     </th><th>
 2297:        <a href="/adm/dropadd?action=$action&sortby=start">$lt{'start'}</a>
 2298:     </th><th>
 2299:        <a href="/adm/dropadd?action=$action&sortby=end">$lt{'end'}</a>
 2300:     </th><th>
 2301:        <a href="/adm/dropadd?action=$action&sortby=groups">$lt{'groups'}</a>
 2302:     </th>
 2303: </tr>
 2304: END
 2305:     }
 2306:     #
 2307:     # Sort the students
 2308:     my %index;
 2309:     my $i;
 2310:     foreach (@$keylist) {
 2311:         $index{$_} = $i++;
 2312:     }
 2313:     $index{'groups'} = scalar(@$keylist);
 2314:     my $index  = $index{$sortby};
 2315:     my $second = $index{'username'};
 2316:     my $third  = $index{'domain'};
 2317:     my @Sorted_Students = sort {
 2318:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
 2319:             ||
 2320:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
 2321:             ||
 2322:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
 2323:         } (keys(%$classlist));
 2324:     foreach my $student (@Sorted_Students) {
 2325:         my $error;
 2326:         my $sdata = $classlist->{$student};
 2327:         my $username = $sdata->[$index{'username'}];
 2328:         my $domain   = $sdata->[$index{'domain'}];
 2329:         my $section  = $sdata->[$index{'section'}];
 2330:         my $name     = $sdata->[$index{'fullname'}];
 2331:         my $id       = $sdata->[$index{'id'}];
 2332:         my $start    = $sdata->[$index{'start'}];
 2333:         my $end      = $sdata->[$index{'end'}];
 2334:         my $groups = $classgroups->{$student};
 2335:         my $active_groups;
 2336:         if (ref($groups->{active}) eq 'HASH') {
 2337:             $active_groups = join(', ',keys(%{$groups->{'active'}}));
 2338:         }
 2339:         if (! defined($start) || $start == 0) {
 2340:             $start = &mt('none');
 2341:         } else {
 2342:             $start = &Apache::lonlocal::locallocaltime($start);
 2343:         }
 2344:         if (! defined($end) || $end == 0) {
 2345:             $end = &mt('none');
 2346:         } else {
 2347:             $end = &Apache::lonlocal::locallocaltime($end);
 2348:         }
 2349:         my $status   = $sdata->[$index{'status'}];
 2350:         next if ($status ne 'Active');
 2351:         #
 2352:         $r->print(&Apache::loncommon::start_data_table_row());
 2353:         $r->print(<<"END");
 2354:     <td><input type="checkbox" name="droplist" value="$student"></td>
 2355:     <td>$username</td>
 2356:     <td>$domain</td>
 2357:     <td>$id</td>
 2358:     <td>$name</td>
 2359:     <td>$section</td>
 2360:     <td>$start</td>
 2361:     <td>$end</td>
 2362:     <td>$active_groups</td>
 2363: END
 2364:         $r->print(&Apache::loncommon::end_data_table_row());
 2365:     }
 2366:     $r->print(&Apache::loncommon::end_data_table().'<br />');
 2367:     %lt=&Apache::lonlocal::texthash(
 2368: 	               'dp'   => "Drop Students",
 2369:                        'ca'   => "check all",
 2370:                        'ua'   => "uncheck all",
 2371: 				       );
 2372:     $r->print(<<"END");
 2373: </p><p>
 2374: <input type="button" value="$lt{'ca'}" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
 2375: <input type="button" value="$lt{'ua'}" onclick="javascript:uncheckAll(document.studentform.droplist)"> 
 2376: <p><input type=submit value="$lt{'dp'}"></p>
 2377: END
 2378:     return;
 2379: }
 2380: 
 2381: 
 2382: =pod 
 2383: 
 2384: =item print_first_courselist_upload_form()
 2385: 
 2386:     Print out the initial form to get the courselist file
 2387: 
 2388: =cut
 2389: 
 2390: sub print_first_courselist_upload_form {
 2391:     my $r=shift;
 2392:     my $str;
 2393:     $str  = '<input type="hidden" name="phase" value="two">';
 2394:     $str .= '<input type="hidden" name="action" value="upload" />';
 2395:     $str .= '<input type="hidden"   name="state"  value="got_file" />';
 2396:     $str .= "<h3>".&mt('Upload a class list')."</h3>\n";
 2397:     $str .= &Apache::loncommon::upfile_select_html();
 2398:     $str .= "<p>\n";
 2399:     $str .= '<input type="submit" name="fileupload" value="'.
 2400:         &mt('Upload class list').'">'."\n";
 2401:     $str .= '<label><input type="checkbox" name="noFirstLine" /> '.
 2402:         &mt('Ignore First Line')."</label></p>\n";
 2403:     $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
 2404:                          &mt("How do I create a class list from a spreadsheet")).
 2405:                              "<br />\n";
 2406:     $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 2407:                            &mt("How do I create a CSV file from a spreadsheet")).
 2408:                                "<br />\n";
 2409:     $str .= &Apache::loncommon::end_page();
 2410:     $r->print($str);
 2411:     return;
 2412: }
 2413: 
 2414: 
 2415: =pod
 2416: 
 2417: =item upfile_drop_add()
 2418: 
 2419:     Drop/Add from uploaded file
 2420: 
 2421: =cut
 2422: 
 2423: sub upfile_drop_add {
 2424:     my $r=shift;
 2425:     &Apache::loncommon::load_tmp_file($r);
 2426:     my @studentdata=&Apache::loncommon::upfile_record_sep();
 2427:     if($env{'form.noFirstLine'}){shift(@studentdata);}
 2428:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 2429:     my $cid = $env{'request.course.id'};
 2430:     my %fields=();
 2431:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 2432:         if ($env{'form.upfile_associate'} eq 'reverse') {
 2433:             if ($env{'form.f'.$i} ne 'none') {
 2434:                 $fields{$keyfields[$i]}=$env{'form.f'.$i};
 2435:             }
 2436:         } else {
 2437:             $fields{$env{'form.f'.$i}}=$keyfields[$i];
 2438:         }
 2439:     }
 2440:     #
 2441:     # Store the field choices away
 2442:     foreach my $field (qw/username names 
 2443:                        fname mname lname gen id sec ipwd email/) {
 2444:         $env{'form.'.$field.'_choice'}=$fields{$field};
 2445:     }
 2446:     &Apache::loncommon::store_course_settings('enrollment_upload',
 2447:                                               { 'username_choice' => 'scalar',
 2448:                                                 'names_choice' => 'scalar',
 2449:                                                 'fname_choice' => 'scalar',
 2450:                                                 'mname_choice' => 'scalar',
 2451:                                                 'lname_choice' => 'scalar',
 2452:                                                 'gen_choice' => 'scalar',
 2453:                                                 'id_choice' => 'scalar',
 2454:                                                 'sec_choice' => 'scalar',
 2455:                                                 'ipwd_choice' => 'scalar',
 2456:                                                 'email_choice' => 'scalar' });
 2457: 
 2458:     #
 2459:     my ($startdate,$enddate) = &get_dates_from_form();
 2460:     if ($env{'form.makedatesdefault'}) {
 2461:         $r->print(&make_dates_default($startdate,$enddate));
 2462:     }
 2463:     # Determine domain and desired host (home server)
 2464:     my $domain=$env{'form.lcdomain'};
 2465:     my $desiredhost = $env{'form.lcserver'};
 2466:     if (lc($desiredhost) eq 'default') {
 2467:         $desiredhost = undef;
 2468:     } else {
 2469:         my %home_servers = &Apache::lonnet::get_servers($domain,'library');
 2470:         if (! exists($home_servers{$desiredhost})) {
 2471:             $r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
 2472:                       &mt('Invalid home server specified'));
 2473:             $r->print(&Apache::loncommon::end_page());
 2474:             return;
 2475:         }
 2476:     }
 2477:     # Determine authentication mechanism
 2478:     my $amode  = '';
 2479:     my $genpwd = '';
 2480:     if ($env{'form.login'} eq 'krb') {
 2481:         $amode='krb';
 2482: 	$amode.=$env{'form.krbver'};
 2483:         $genpwd=$env{'form.krbarg'};
 2484:     } elsif ($env{'form.login'} eq 'int') {
 2485:         $amode='internal';
 2486:         if ((defined($env{'form.intarg'})) && ($env{'form.intarg'})) {
 2487:             $genpwd=$env{'form.intarg'};
 2488:         }
 2489:     } elsif ($env{'form.login'} eq 'loc') {
 2490:         $amode='localauth';
 2491:         if ((defined($env{'form.locarg'})) && ($env{'form.locarg'})) {
 2492:             $genpwd=$env{'form.locarg'};
 2493:         }
 2494:     }
 2495:     if ($amode =~ /^krb/) {
 2496:         if (! defined($genpwd) || $genpwd eq '') {
 2497:             $r->print('<font color="red" size="+1">'.
 2498:                       &mt('Unable to enroll students').'</font>  '.
 2499:                       &mt('No Kerberos domain was specified.').'</p>');
 2500:             $amode = ''; # This causes the loop below to be skipped
 2501:         }
 2502:     }
 2503:     if ( $domain eq &LONCAPA::clean_domain($domain)
 2504: 	&& ($amode ne '')) {
 2505:         #######################################
 2506:         ##         Enroll Students           ##
 2507:         #######################################
 2508:         $r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
 2509:         my $count=0;
 2510:         my $flushc=0;
 2511:         my %student=();
 2512:         # Get information about course groups
 2513:         my %curr_groups = &Apache::longroup::coursegroups();
 2514:         # Get new classlist
 2515:         foreach (@studentdata) {
 2516:             my %entries=&Apache::loncommon::record_sep($_);
 2517:             # Determine student name
 2518:             unless (($entries{$fields{'username'}} eq '') ||
 2519:                     (!defined($entries{$fields{'username'}}))) {
 2520:                 my ($fname, $mname, $lname,$gen) = ('','','','');
 2521:                 if (defined($fields{'names'})) {
 2522:                     ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
 2523:                                             /([^\,]+)\,\s*(\w+)\s*(.*)$/);
 2524:                 } else {
 2525:                     if (defined($fields{'fname'})) {
 2526:                         $fname=$entries{$fields{'fname'}};
 2527:                     }
 2528:                     if (defined($fields{'mname'})) {
 2529:                         $mname=$entries{$fields{'mname'}};
 2530:                     }
 2531:                     if (defined($fields{'lname'})) {
 2532:                         $lname=$entries{$fields{'lname'}};
 2533:                     }
 2534:                     if (defined($fields{'gen'})) {
 2535:                         $gen=$entries{$fields{'gen'}};
 2536:                     }
 2537:                 }
 2538:                 if ($entries{$fields{'username'}}
 2539: 		    ne &LONCAPA::clean_username($entries{$fields{'username'}})) {
 2540:                     $r->print('<br />'.
 2541:       &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
 2542:           $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
 2543:                               '</b>');
 2544:                 } else {
 2545:                     # determine section number
 2546:                     my $sec='';
 2547:                     my $username=$entries{$fields{'username'}};
 2548:                     if (defined($fields{'sec'})) {
 2549:                         if (defined($entries{$fields{'sec'}})) {
 2550:                             $sec=$entries{$fields{'sec'}};
 2551:                         }
 2552:                     }
 2553:                     # remove non alphanumeric values from section
 2554:                     $sec =~ s/\W//g;
 2555:                     if ($sec eq "none" || $sec eq 'all') {
 2556:                         $r->print('<br />'.
 2557:       &mt('<b>[_1]</b>: Unable to enroll: section name "[_2]" for user [_3] [_4] [_5] [_6] is a reserved word.',
 2558:                         $username,$sec,$fname,$mname,$lname,$gen));
 2559:                         next;
 2560:                     } elsif (($sec ne '') && (exists($curr_groups{$sec}))) {
 2561:                         $r->print('<br />'.
 2562:       &mt('<b>[_1]</b>: Unable to enroll: section name "[_2]" for user [_3] [_4] [_5] [_6] is a course group. Section names and group names must be distinct.',
 2563:                         $username,$sec,$fname,$mname,$lname,$gen));
 2564:                         next;
 2565:                     }
 2566:                     # determine student id number
 2567:                     my $id='';
 2568:                     if (defined($fields{'id'})) {
 2569:                         if (defined($entries{$fields{'id'}})) {
 2570:                             $id=$entries{$fields{'id'}};
 2571:                         }
 2572:                         $id=~tr/A-Z/a-z/;
 2573:                     }
 2574:                     # determine email address
 2575:                     my $email='';
 2576:                     if (defined($fields{'email'})) {
 2577:                         if (defined($entries{$fields{'email'}})) {
 2578:                             $email=$entries{$fields{'email'}};
 2579:                             unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
 2580:                         }
 2581:                     }
 2582:                     # determine student password
 2583:                     my $password='';
 2584:                     if ($genpwd) { 
 2585:                         $password=$genpwd; 
 2586:                     } else {
 2587:                         if (defined($fields{'ipwd'})) {
 2588:                             if ($entries{$fields{'ipwd'}}) {
 2589:                                 $password=$entries{$fields{'ipwd'}};
 2590:                             }
 2591:                         }
 2592:                     }
 2593:                     # Clean up whitespace
 2594:                     foreach (\$domain,\$username,\$id,\$fname,\$mname,
 2595:                              \$lname,\$gen,\$sec) {
 2596:                         $$_ =~ s/(\s+$|^\s+)//g;
 2597:                     }
 2598:                     if ($password || $env{'form.login'} eq 'loc') {
 2599:                         &Apache::lonuserutils::modifystudent($domain,
 2600:                                                          $username,$cid,
 2601:                                                          $sec,$desiredhost);
 2602:                         my $reply=&Apache::lonnet::modifystudent
 2603:                             ($domain,$username,$id,$amode,$password,
 2604:                              $fname,$mname,$lname,$gen,$sec,$enddate,
 2605:                              $startdate,$env{'form.forceid'},$desiredhost,
 2606:                              $email);
 2607:                         if ($reply ne 'ok') {
 2608:                             $reply =~ s/^error://;
 2609:                             $r->print('<br />'.
 2610:                 &mt('<b>[_1]</b>:  Unable to enroll: [_2]',$username,$reply));
 2611:          		} else {
 2612:                             $count++; $flushc++;
 2613:                             $student{$username}=1;
 2614:                             $r->print('. ');
 2615:                             if ($flushc>15) {
 2616: 				$r->rflush;
 2617:                                 $flushc=0;
 2618:                             }
 2619:                         }
 2620:                     } else {
 2621:                         $r->print('<br />'.
 2622:       &mt('<b>[_1]</b>: Unable to enroll.  No password specified.',$username)
 2623:                                   );
 2624:                     }
 2625:                 }
 2626:             }
 2627:         } # end of foreach (@studentdata)
 2628:         $r->print("</p>\n<p>\n".&mt('Processed [_1] student(s).',$count).
 2629:                   "</p>\n");
 2630:         $r->print("<p>\n".
 2631:                   &mt('If active, the new role will be available when the '.
 2632:                   'students next log in to LON-CAPA.')."</p>\n");
 2633:         #####################################
 2634:         #           Drop students           #
 2635:         #####################################
 2636:         if ($env{'form.fullup'} eq 'yes') {
 2637:             $r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
 2638:             #  Get current classlist
 2639:             my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
 2640:             if (! defined($classlist)) {
 2641:                 $r->print(&mt('There are no students currently enrolled.').
 2642:                           "\n");
 2643:             } else {
 2644:                 # Remove the students we just added from the list of students.
 2645:                 foreach (@studentdata) {
 2646:                     my %entries=&Apache::loncommon::record_sep($_);
 2647:                     unless (($entries{$fields{'username'}} eq '') ||
 2648:                             (!defined($entries{$fields{'username'}}))) {
 2649:                         delete($classlist->{$entries{$fields{'username'}}.
 2650:                                                 ':'.$domain});
 2651:                     }
 2652:                 }
 2653:                 # Print out list of dropped students.
 2654:                 &show_drop_list($r,$classlist,$keylist,'nosort');
 2655:             }
 2656:         }
 2657:     } # end of unless
 2658: }
 2659: 
 2660: # ================================================================== Phase four
 2661: sub drop_student_list {
 2662:     my $r=shift;
 2663:     my $count=0;
 2664:     my @droplist = &Apache::loncommon::get_env_multiple('form.droplist');
 2665:     foreach (@droplist) {
 2666:         my ($uname,$udom)=split(/\:/,$_);
 2667:         # drop student
 2668:         my $result = &Apache::lonuserutils::modifystudent($udom,$uname,
 2669:                                                 $env{'request.course.id'});
 2670:         if ($result eq 'ok' || $result eq 'ok:') {
 2671:             $r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
 2672:             $count++;
 2673:         } else {
 2674:             $r->print(
 2675:           &mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
 2676:                       '<br />');
 2677:         }
 2678:     }
 2679:     $r->print('<p><b>'.&mt('Dropped [_1] student(s).',$count).'</b></p>');
 2680:     $r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
 2681: }
 2682: 
 2683: sub section_check_js {
 2684:     my $groupslist;
 2685:     my %curr_groups = &Apache::longroup::coursegroups();
 2686:     if (%curr_groups) {
 2687:         $groupslist = join('","',sort(keys(%curr_groups)));
 2688:     }
 2689:     return <<"END";
 2690: function validate(caller) {
 2691:     var groups = new Array("$groupslist");
 2692:     var secname = caller.value;
 2693:     if ((secname == 'all') || (secname == 'none')) {
 2694:         alert("'"+secname+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
 2695:         return 'error';
 2696:     }
 2697:     if (secname != '') {
 2698:         for (var k=0; k<groups.length; k++) {
 2699:             if (secname == groups[k]) {
 2700:                 alert("'"+secname+"' may not be used as the name for a section, as it is the name of a course group.\\nSection names and group names must be distinct. Please choose a different section name.");
 2701:                 return 'error';
 2702:             }
 2703:         }
 2704:     }
 2705:     return 'ok';
 2706: }
 2707: END
 2708: }
 2709: 
 2710: sub get_permission {
 2711:     my %permission;
 2712:     $permission{'view'} = 
 2713:         &Apache::lonnet::allowed('vcl',$env{'request.course.id'});
 2714:     if (!$permission{'view'}) {
 2715: 	my $scope = $env{'request.course.id'}.'/'.$env{'request.course.sec'};
 2716: 	$permission{'view'} =  &Apache::lonnet::allowed('vcl',$scope);
 2717: 	if ($permission{'view'}) {
 2718: 	    $permission{'view_section'} = $env{'request.course.sec'};
 2719: 	}
 2720:     }
 2721: 
 2722:     $permission{'enrl'} = 
 2723:         &Apache::lonnet::allowed('cst',$env{'request.course.id'});
 2724: 
 2725:     $permission{'grp_view'} =
 2726:         &Apache::lonnet::allowed('vcg',$env{'request.course.id'});
 2727:     $permission{'grp_manage'} =
 2728:         &Apache::lonnet::allowed('mdg',$env{'request.course.id'});
 2729:     my $allowed = 0;
 2730:     foreach my $perm (values(%permission)) {
 2731: 	if ($perm) { $allowed=1; last; }
 2732:     }
 2733:     return (\%permission,$allowed);
 2734: }
 2735: 
 2736: =pod
 2737: 
 2738: =item &handler()
 2739: 
 2740: The typical handler you see in all these modules.  Takes $r, the
 2741: http request, as an argument.  
 2742: 
 2743: The response to the request is governed by two form variables
 2744: 
 2745:  form.action      form.state     response
 2746:  ---------------------------------------------------
 2747:  undefined        undefined      print main menu
 2748:  upload           undefined      print courselist upload menu
 2749:  upload           got_file       deal with uploaded file,
 2750:                                  print the upload managing menu
 2751:  upload           enrolling      enroll students based on upload
 2752:  drop             undefined      print the classlist ready to drop
 2753:  drop             done           drop the selected students
 2754:  enrollstudent    undefined      print student username domain form
 2755:  enrollstudent    gotusername    print single student enroll menu
 2756:  enrollstudent    enrolling      enroll student
 2757:  classlist        undefined      print html classlist
 2758:  classlist        csv            print csv classlist
 2759:  modifystudent    undefined      print classlist to select student to modify
 2760:  modifystudent    selected       print modify student menu
 2761:  modifystudent    done           make modifications to student record
 2762: 
 2763: =cut
 2764: 
 2765: sub handler {
 2766:     my $r=shift;
 2767:     if ($r->header_only) {
 2768:         &Apache::loncommon::content_type($r,'text/html');
 2769:         $r->send_http_header;
 2770:         return OK;
 2771:     }
 2772:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2773:                                             ['action','state']);
 2774: 
 2775:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 2776:     &Apache::lonhtmlcommon::add_breadcrumb
 2777:         ({href=>"/adm/dropadd",
 2778:           text=>"Enrollment Manager",
 2779:           faq=>9,bug=>'Instructor Interface',});
 2780:     #  Needs to be in a course
 2781:     if (! ($env{'request.course.fn'})) {
 2782:         # Not in a course
 2783:         $env{'user.error.msg'}=
 2784:             "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
 2785:                                   "or drop or add students";
 2786:         return HTTP_NOT_ACCEPTABLE; 
 2787:     }
 2788:     #
 2789: 
 2790:     my ($permission,$allowed) = &get_permission();
 2791: 
 2792:     if (!$allowed) {
 2793:         $env{'user.error.msg'}=
 2794: 	    "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
 2795: 	                         "or drop or add students";
 2796:         return HTTP_NOT_ACCEPTABLE;
 2797:     }
 2798: 
 2799:     #
 2800:     # Only output the header information if they did not request csv format
 2801:     #
 2802:     # Start page
 2803:     &Apache::loncommon::content_type($r,'text/html');
 2804:     $r->send_http_header;
 2805:     #
 2806:     # Main switch on form.action and form.state, as appropriate
 2807:     if (! exists($env{'form.action'})) {
 2808:         $r->print(&header());
 2809:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
 2810:         my $action = &print_main_menu($r,$permission);
 2811:     } elsif ($env{'form.action'} eq 'upload' && $permission->{'enrl'}) {
 2812:         $r->print(&header());
 2813:         &Apache::lonhtmlcommon::add_breadcrumb
 2814:             ({href=>'/adm/dropadd?action=upload&state=',
 2815:               text=>"Upload Classlist"});
 2816:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Upload Classlist',
 2817: 						      'Course_Create_Class_List'));
 2818:         if (! exists($env{'form.state'})) {
 2819:             &print_first_courselist_upload_form($r);            
 2820:         } elsif ($env{'form.state'} eq 'got_file') {
 2821:             &print_upload_manager_form($r);
 2822:         } elsif ($env{'form.state'} eq 'enrolling') {
 2823:             if ($env{'form.datatoken'}) {
 2824:                 &upfile_drop_add($r);
 2825:             } else {
 2826:                 # Hmmm, this is an error
 2827:             }
 2828:         } else {
 2829:             &print_first_courselist_upload_form($r);            
 2830:         }
 2831:     } elsif ($env{'form.action'} eq 'drop' && $permission->{'enrl'}) {
 2832:         $r->print(&header());
 2833:         &Apache::lonhtmlcommon::add_breadcrumb
 2834:             ({href=>'/adm/dropadd?action=drop',
 2835:               text=>"Drop Students"});
 2836:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Drop Students',
 2837: 						      'Course_Drop_Student'));
 2838:         if (! exists($env{'form.state'})) {
 2839:             &print_drop_menu($r);
 2840:         } elsif ($env{'form.state'} eq 'done') {
 2841:             &drop_student_list($r);
 2842:         } else {
 2843:             &print_drop_menu($r);
 2844:         }
 2845:     } elsif ($env{'form.action'} eq 'enrollstudent' && $permission->{'enrl'}) {
 2846:         my @search = ('srchterm','srchby','srchin','srchtype','srchdomain');
 2847:         my ($jsback,$elements) = &Apache::loncreateuser::crumb_utilities();
 2848:         my $jscript = '<script type="text/javascript">'.$jsback.'</script>';
 2849: 	&Apache::loncreateuser::restore_prev_selections();
 2850: 	my $srch;
 2851: 	foreach my $item (@search) {
 2852: 	    $srch->{$item} = $env{'form.'.$item};
 2853: 	}
 2854: 
 2855:         if ($env{'form.state'} eq 'gotusername') {
 2856:             if ($env{'form.phase'} eq 'get_user_info') {
 2857:                 my ($currstate,$response,$forcenewuser,$results) =
 2858:                     &Apache::loncreateuser::user_search_result($srch);
 2859:                 if ($env{'form.currstate'} eq 'modify') {
 2860:                     $currstate = $env{'form.currstate'};
 2861:                 }
 2862:                 if ($currstate eq 'select') {
 2863:                     $r->print(&header());
 2864:                     &Apache::lonhtmlcommon::add_breadcrumb
 2865:                         ({href=>"javascript:backPage(document.usersrchform,'','')",
 2866:                           text=>"Single user search"},
 2867:                          {href=>"javascript:backPage(document.usersrchform,'get_user_info','select')",
 2868:                           text=>"Select User",});
 2869:                     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2870:                                                                   'Course_Add_Student'));
 2871:                     &Apache::loncreateuser::print_user_selection_page($r,
 2872:                         $response,$srch,$results,'enrollstudent',\@search);
 2873:                 } elsif ($currstate eq 'modify') {
 2874:                     my ($ccuname,$ccdomain);
 2875:                     if (($srch->{'srchby'} eq 'uname') &&
 2876:                         ($srch->{'srchtype'} eq 'exact')) {
 2877:                         $ccuname = $srch->{'srchterm'};
 2878:                         $ccdomain= $srch->{'srchdomain'};
 2879:                     } else {
 2880:                         my @matchedunames = keys(%{$results});
 2881:                         ($ccuname,$ccdomain) = split(/:/,$matchedunames[0]);
 2882:                     }
 2883:                     $ccuname =&LONCAPA::clean_username($ccuname);
 2884:                     $ccdomain=&LONCAPA::clean_domain($ccdomain);
 2885:                     &print_enroll_single_student_form($r,$jscript,$ccuname,
 2886:                                                       $ccdomain,$srch,$response);
 2887:                 } elsif ($currstate eq 'query') {
 2888:                     $r->print(&header($jscript));
 2889:                     &Apache::lonhtmlcommon::add_breadcrumb
 2890:                         ({href=>"javascript:backPage(document.studentform,'','')",
 2891:                           text=>"Single user search"});
 2892:                     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2893:                                                       'Course_Add_Student'));
 2894:                     &Apache::loncreateuser::print_user_query_page($r,'enrollstudent');
 2895:                 } else {
 2896:                     &get_student_username_domain_form($r,$elements,$response,
 2897:                                                       $srch,$forcenewuser);
 2898:                 }
 2899:             } elsif ($env{'form.phase'} eq 'userpicked') {
 2900:                 my $ccuname = &LONCAPA::clean_username($env{'form.seluname'});
 2901:                 my $ccdomain = &LONCAPA::clean_domain($env{'form.seludom'});
 2902:                 &print_enroll_single_student_form($r,$jscript,$ccuname,
 2903:                                                   $ccdomain,$srch);
 2904:             } else {
 2905:                 &get_student_username_domain_form($r,$elements,undef,$srch);
 2906:             }
 2907:         } elsif ($env{'form.state'} eq 'enrolling') {
 2908:             $r->print(&header($jscript));
 2909:             &Apache::lonhtmlcommon::add_breadcrumb
 2910:                 ({href=>"javascript:backPage(document.studentform,'','')",
 2911:                   text=>"Single user search"});
 2912:             if ($env{'form.prevphase'} eq 'userpicked') {
 2913:                &Apache::lonhtmlcommon::add_breadcrumb
 2914:                ({href=>"javascript:backPage(document.studentform,'get_user_info','select')",
 2915:                  text=>"Select user",});
 2916:             }
 2917:             &Apache::lonhtmlcommon::add_breadcrumb
 2918:                 ({href=>"javascript:backPage(document.studentform,'$env{'form.prevphase'}','modify')",
 2919:                   text=>"Set enrollment",},
 2920:                  {href=>"javascript:backPage(document.studentform,$env{'form.phase'},'')",
 2921:                  text=>"Result",});
 2922:             $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2923:                                                       'Course_Add_Student'));
 2924:             &enroll_single_student($r,\@search);
 2925:         } else {
 2926:             &get_student_username_domain_form($r,$elements,undef,$srch);
 2927:         }
 2928:     } elsif ($env{'form.action'} eq 'classlist' && $permission->{'view'}) {
 2929:         $r->print(&header());
 2930:         &Apache::lonhtmlcommon::add_breadcrumb
 2931:             ({href=>'/adm/dropadd?action=classlist',
 2932:               text=>"View Classlist"});
 2933:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('View Classlist',
 2934: 						      'Course_View_Class_List'));
 2935:         if (! exists($env{'form.state'})) {
 2936:             &print_html_classlist($r,undef,$permission);
 2937:         } elsif ($env{'form.state'} eq 'csv') {
 2938:             &print_html_classlist($r,'csv',$permission);
 2939:         } elsif ($env{'form.state'} eq 'excel') {
 2940:             &print_html_classlist($r,'excel',$permission);
 2941:         } else {
 2942:             &print_html_classlist($r,undef,$permission);
 2943:         }
 2944:     } elsif ($env{'form.action'} eq 'modifystudent' && $permission->{'enrl'}) {
 2945:         $r->print(&header());
 2946:         &Apache::lonhtmlcommon::add_breadcrumb
 2947:             ({href=>'/adm/dropadd?action=modifystudent',
 2948:               text=>"Modify Student Data"});
 2949:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Modify Student Data',
 2950: 						      'Course_Modify_Student_Data'));
 2951:         if (! exists($env{'form.state'})) {
 2952:             &print_html_classlist($r,undef,$permission);
 2953:         } elsif ($env{'form.state'} eq 'selected') {
 2954:             &print_modify_student_form($r);
 2955:         } elsif ($env{'form.state'} eq 'done') {
 2956:             &modify_single_student($r);
 2957:         } else {
 2958:             &print_html_classlist($r,undef,$permission);
 2959:         }        
 2960:     } else {
 2961:         # We should not end up here, but I guess it is possible
 2962:         &Apache::lonnet::logthis("Undetermined state in londropadd.pm.  ".
 2963:                                  "form.action = ".$env{'form.action'}.
 2964:                                  "Someone should fix this.");
 2965:         $r->print(&header());
 2966:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
 2967:         &print_main_menu($r,$permission);
 2968:     }
 2969:     #
 2970:     # Finish up
 2971:     $r->print('</form>'.&Apache::loncommon::end_page());
 2972:     return OK;
 2973: }
 2974: 
 2975: 
 2976: 1;
 2977: __END__
 2978: 
 2979: =pod
 2980: 
 2981: =back
 2982: 
 2983: =cut

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