--- loncom/interface/Attic/londropadd.pm 2002/04/15 23:37:37 1.24 +++ loncom/interface/Attic/londropadd.pm 2003/11/05 20:55:59 1.87 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Handler to drop and add students in courses # -# $Id: londropadd.pm,v 1.24 2002/04/15 23:37:37 albertel Exp $ +# $Id: londropadd.pm,v 1.87 2003/11/05 20:55:59 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -31,269 +31,286 @@ # # (TeX Content Handler # -# YEAR=2000 -# 05/29/00,05/30,10/11 Gerd Kortemeyer) -# -# 10/11,10/12,10/16 Gerd Kortemeyer) -# -# 11/20,11/21,11/22,11/23,11/24,11/25,11/27,11/28, -# 12/08,12/12 Gerd Kortemeyer) -# -# 12/26,12/27,12/28, -# YEAR=2001 -# 01/01/01,01/15,02/10,02/13,02/14,02/22 Gerd Kortemeyer -# 8/6 Scott Harrison -# Guy Albertelli -# 9/25 Gerd Kortemeyer -# 12/19 Guy Albertelli -# YEAR=2002 -# 1/4 Gerd Kortemeyer +############################################################### +############################################################## package Apache::londropadd; use strict; use Apache::lonnet(); use Apache::loncommon(); +use Apache::lonhtmlcommon(); use Apache::Constants qw(:common :http REDIRECT); +use Spreadsheet::WriteExcel; +use Apache::lonlocal; -# ================================================================ Print header - +############################################################### +############################################################### sub header { - my $r=shift; - $r->print(< -LON-CAPA Student Drop/Add +LON-CAPA Enrollment Manager - - -

Drop/Add Students

-
-

Course: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}

+$bodytag + ENDHEAD } -# =========== Drop student from all sections of a course, except optional $csec - -sub dropstudent { - my ($udom,$unam,$courseid,$csec)=@_; - $courseid=~s/\_/\//g; - $courseid=~s/^(\w)/\/$1/; - foreach (split(/\&/, - &Apache::lonnet::reply('dump:'.$udom.':'.$unam.':roles', - &Apache::lonnet::homeserver($unam,$udom)))) { - my ($key,$value)=split(/\=/,$_); - $key=&Apache::lonnet::unescape($key); - if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) { - my $section=$1; - if ($key eq $courseid.'_st') { $section=''; } - if (((!$section) && (!$csec)) || ($section ne $csec)) { - my ($dummy,$end,$start)=split(/\_/, - &Apache::lonnet::unescape($value)); - my $now=time; - my $notactive=0; - if ($start) { - if ($now<$start) { $notactive=1; } +############################################################### +############################################################### +# Drop student from all sections of a course, except optional $csec +sub modifystudent { + my ($udom,$unam,$courseid,$csec,$desiredhost)=@_; + # if $csec is undefined, drop the student from all the courses matching + # this one. If $csec is defined, drop them from all other sections of + # this course and add them to section $csec + $courseid=~s/\_/\//g; + $courseid=~s/^(\w)/\/$1/; + my %roles = &Apache::lonnet::dump('roles',$udom,$unam); + my ($tmp) = keys(%roles); + # Bail out if we were unable to get the students roles + return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i); + # Go through the roles looking for enrollment in this course + my $result = ''; + foreach my $course (keys(%roles)) { + if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) { + # We are in this course + my $section=$1; + $section='' if ($course eq $courseid.'_st'); + if (defined($csec) && $section eq $csec) { + $result .= 'ok:'; + } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) { + my (undef,$end,$start)=split(/\_/,$roles{$course}); + my $now=time; + # if this is an active role + if (!($start && ($now<$start)) || !($end && ($now>$end))) { + my $reply=&Apache::lonnet::modifystudent + # dom name id mode pass f m l g + ($udom,$unam,'', '', '',undef,undef,undef,undef, + $section,time,undef,undef,$desiredhost); + $result .= $reply.':'; + } } - if ($end) { - if ($now>$end) { $notactive=1; } - } - unless ($notactive) { - my $reply=&Apache::lonnet::modifystudent( - $udom,$unam,'','','', - '','','','',$section,time); - } - } } } + if ($result eq '') { + $result = 'Unable to find section for this student'; + } else { + $result =~ s/(ok:)+/ok/g; + } + return $result; } -# ============================================================== Menu Phase One +############################################################### +############################################################### +# build a domain and server selection form +sub domain_form { + my ($defdom) = @_; + # Set up domain and server selection forms + # + # Get the domains + my @domains = &Apache::loncommon::get_domains(); + # build up the menu information to be passed to + # &Apache::loncommon::linked_select_forms + my %select_menus; + foreach my $dom (@domains) { + # set up the text for this domain + $select_menus{$dom}->{'text'}= $dom; + # we want a choice of 'default' as the default in the second menu + $select_menus{$dom}->{'default'}= 'default'; + $select_menus{$dom}->{'select2'}->{'default'} = 'default'; + # Now build up the other items in the second menu + my %servers = &Apache::loncommon::get_library_servers($dom); + foreach my $server (keys(%servers)) { + $select_menus{$dom}->{'select2'}->{$server} + = "$server $servers{$server}"; + } + } + my $result = &Apache::loncommon::linked_select_forms + ('studentform',' with home server ',$defdom, + 'lcdomain','lcserver',\%select_menus); + return $result; +} -sub menu_phase_one { +############################################################### +############################################################### +# Menu Phase One +sub print_main_menu { my $r=shift; - my $upfile_select=&Apache::loncommon::upfile_select_html(); - $r->print(< -
-

Upload a courselist

-$upfile_select -

-

-

Enroll a single student

-

-

-

Drop students

-

-ENDUPFORM + $r->print(< + + Upload a course list + +

+ + Enroll a single student + +

+ + Modify student data + +

+ + View Class List + +

+ + Drop Students + +

+END } - -sub phase_two_header { +############################################################### +############################################################### +sub print_upload_manager_header { my ($r,$datatoken,$distotal,$krbdefdom)=@_; my $javascript; + if (! exists($ENV{'form.upfile_associate'})) { + $ENV{'form.upfile_associate'} = 'forward'; + } + if ($ENV{'form.associate'} eq 'Reverse Association') { + if ( $ENV{'form.upfile_associate'} ne 'reverse' ) { + $ENV{'form.upfile_associate'} = 'reverse'; + } else { + $ENV{'form.upfile_associate'} = 'forward'; + } + } if ($ENV{'form.upfile_associate'} eq 'reverse') { - $javascript=&phase_two_javascript_reverse_associate(); + $javascript=&upload_manager_javascript_reverse_associate(); } else { - $javascript=&phase_two_javascript_forward_associate(); + $javascript=&upload_manager_javascript_forward_associate(); } my $javascript_validations=&javascript_validations($krbdefdom); + my $checked=(($ENV{'form.noFirstLine'})?' checked="1"':''); $r->print(<Uploading Class List

Identify fields

Total number of records found in file: $distotal
Enter as many fields as you can. The system will inform you and bring you back to this page if the data selected is insufficient to run your class.
- - - + + + + + +Ignore First Line - +
- ENDPICK } +############################################################### +############################################################### sub javascript_validations { my ($krbdefdom)=@_; + my %param = ( formname => 'studentform', + kerb_def_dom => $krbdefdom ); + my $authheader = &Apache::loncommon::authform_header(%param); + my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition(); return (<=3) && @@ -335,6 +369,8 @@ function flip(vf,tf) { } } } + // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6), + // clear out any that are set to 'lastname, firstnames' (2) if ((nw>=3) && (nw<=6)) { for (i=0;i<=vf.nfields.value;i++) { if (eval('vf.f'+i+'.selectedIndex')==2) { @@ -342,10 +378,13 @@ function flip(vf,tf) { } } } + // If we set the password, make the password form below correspond to + // the new value. if (nw==9) { - vf.login[1].checked=true; - vf.intpwd.value=''; - vf.krbdom.value=''; + changed_radio('int',document.studentform); + set_auth_radio_buttons('int',document.studentform); + vf.intarg.value=''; + vf.krbarg.value=''; vf.locarg.value=''; } } @@ -362,7 +401,9 @@ function clearpwd(vf) { ENDPICK } -sub phase_two_javascript_reverse_associate { +############################################################### +############################################################### +sub upload_manager_javascript_reverse_associate { return(< 'document.studentform', + kerb_def_dom => $krbdefdom, + kerb_def_auth => $krbdef + ); + my $krbform = &Apache::loncommon::authform_kerberos(%param); + my $intform = &Apache::loncommon::authform_internal(%param); + my $locform = &Apache::loncommon::authform_local(%param); + my $domform = &domain_form($defdom); + my $date_table = &date_setting_table(); $r->print(< @@ -423,35 +479,20 @@ sub phase_two_end {

Login Type

Note: this will not take effect if the user already exists

- -Kerberos authenticated with domain - +$krbform

- -Internally authenticated (with initial password -) +$intform

- -Local Authentication with argument - +$locform

LON-CAPA Domain for Students

-LON-CAPA domain:

+LON-CAPA domain: $domform

Starting and Ending Dates

- - - - - -Set Starting Date

- -Set Ending Date

+

+$date_table +

Full Update

Full update (also print list of users not enrolled anymore)

@@ -459,16 +500,15 @@ LON-CAPA domain: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)

-
-Note: for large courses, this operation might be time consuming. +
+Note: for large courses, this operation may be time consuming. ENDPICK } # ======================================================= Menu Phase Two Upload - -sub menu_phase_two_upload { +sub print_upload_manager_form { my $r=shift; - + my $firstLine; my $datatoken; if (!$ENV{'form.datatoken'}) { $datatoken=&Apache::loncommon::upfile_store($r); @@ -477,28 +517,28 @@ sub menu_phase_two_upload { &Apache::loncommon::load_tmp_file($r); } my @records=&Apache::loncommon::upfile_record_sep(); + if($ENV{'form.noFirstLine'}){$firstLine=shift(@records);} my $total=$#records; my $distotal=$total+1; - - $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/; - my $krbdefdom=$1; - $krbdefdom=~tr/a-z/A-Z/; - my $today=time; my $halfyear=$today+15552000; - - my $defdom=$r->dir_config('lonDefDomain'); - - &phase_two_header($r,$datatoken,$distotal,$krbdefdom); - + my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; + my ($krbdef,$krbdefdom) = + &Apache::loncommon::get_kerberos_defaults($defdom); + &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom); my $i; my $keyfields; if ($total>=0) { - my @d=(['username','Username'],['names','Last Name, First Names'], - ['fname','First Name'],['mname','Middle Names/Initials'], - ['lname','Last Name'],['gen','Generation'], - ['id','ID/Student Number'],['sec','Group/Section'], - ['ipwd','Initial Password']); + my @d=(['username','Username'], + ['names','Last Name, First Names'], + ['fname','First Name'], + ['mname','Middle Names/Initials'], + ['lname','Last Name'], + ['gen','Generation'], + ['id','ID/Student Number'], + ['sec','Group/Section'], + ['ipwd','Initial Password'], + ['email','EMail Address']); if ($ENV{'form.upfile_associate'} eq 'reverse') { &Apache::loncommon::csv_print_samples($r,\@records); $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d); @@ -511,65 +551,299 @@ sub menu_phase_two_upload { $keyfields=join(',',sort(keys(%sone))); } } - - - &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear); + &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear); } # ======================================================= Enroll single student - sub enroll_single_student { my $r=shift; + # Remove non alphanumeric values from section + $ENV{'form.csec'}=~s/\W//g; + # + # We do the dates first because the action of making them the defaul + # in the course is entirely seperate from the action of enrolling the + # student. Also, a failure in setting the dates as default is not fatal + # to the process of enrolling / modifying a student. + my ($startdate,$enddate) = &get_dates_from_form(); + if ($ENV{'form.makedatesdefault'}) { + $r->print(&make_dates_default($startdate,$enddate)); + } + $r->print('

Enrolling Student

'); + $r->print('

Enrolling '.$ENV{'form.cuname'}." \@ ". + $ENV{'form.lcdomain'}.'

'); if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&& - ($ENV{'form.cdomain'})&&($ENV{'form.cdomain'}!~/\W/)) { + ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) { + # Deal with home server selection + my $domain=$ENV{'form.lcdomain'}; + my $desiredhost = $ENV{'form.lcserver'}; + if (lc($desiredhost) eq 'default') { + $desiredhost = undef; + } else { + my %home_servers =&Apache::loncommon::get_library_servers($domain); + if (! exists($home_servers{$desiredhost})) { + $r->print('Error:'. + 'Invalid home server specified'); + return; + } + } + $r->print(" with server $desiredhost :") if (defined($desiredhost)); + # End of home server selection logic my $amode=''; my $genpwd=''; if ($ENV{'form.login'} eq 'krb') { - $amode='krb4'; - $genpwd=$ENV{'form.krbdom'}; + $amode='krb'; + $amode.=$ENV{'form.krbver'}; + $genpwd=$ENV{'form.krbarg'}; } elsif ($ENV{'form.login'} eq 'int') { $amode='internal'; - $genpwd=$ENV{'form.intpwd'}; + $genpwd=$ENV{'form.intarg'}; } elsif ($ENV{'form.login'} eq 'loc') { $amode='localauth'; $genpwd=$ENV{'form.locarg'}; if (!$genpwd) { $genpwd=" "; } } - if (($amode) && ($genpwd)) { - &dropstudent($ENV{'form.cdomain'},$ENV{'form.cuname'}, - $ENV{'request.course.id'},$ENV{'form.csec'}); - $r->print(&Apache::lonnet::modifystudent( - $ENV{'form.cdomain'},$ENV{'form.cuname'}, - $ENV{'form.cstid'},$amode,$genpwd, - $ENV{'form.cfirst'},$ENV{'form.cmiddle'}, - $ENV{'form.clast'},$ENV{'form.cgen'}, - $ENV{'form.csec'},$ENV{'form.enddate'}, - $ENV{'form.startdate'},$ENV{'form.forceid'})); + my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'}, + $ENV{'form.lcdomain'}); + if ((($amode) && ($genpwd)) || ($home ne 'no_host')) { + # Clean out any old roles the student has in this class. + &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'}, + $ENV{'request.course.id'},$ENV{'form.csec'}, + $desiredhost); + my $login_result = &Apache::lonnet::modifystudent + ($ENV{'form.lcdomain'},$ENV{'form.cuname'}, + $ENV{'form.cstid'},$amode,$genpwd, + $ENV{'form.cfirst'},$ENV{'form.cmiddle'}, + $ENV{'form.clast'},$ENV{'form.cgen'}, + $ENV{'form.csec'},$enddate, + $startdate,$ENV{'form.forceid'}, + $desiredhost); + if ($login_result =~ /^ok/) { + $r->print($login_result); + $r->print("

If active, the new role will be available ". + "when the student next logs in to LON-CAPA.

"); + } else { + $r->print("unable to enroll: ".$login_result); + } } else { - $r->print('Invalid login mode or password'); - } + $r->print('

ERROR '); + if ($amode =~ /^krb/) { + $r->print('Missing Kerberos domain information. '); + } else { + $r->print('Invalid login mode or password. '); + } + $r->print('Unable to enroll '.$ENV{'form.cuname'}.'.

'); + } } else { $r->print('Invalid username or domain'); } } -# ======================================================= Menu Phase Two Enroll - -sub menu_phase_two_enroll { - my $r=shift; - - $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/; - my $krbdefdom=$1; - $krbdefdom=~tr/a-z/A-Z/; +sub setup_date_selectors { + my ($starttime,$endtime) = @_; + if (! defined($starttime)) { + $starttime = time; + if (exists($ENV{'course.'.$ENV{'request.course.id'}. + '.default_enrollment_start_date'})) { + $starttime = $ENV{'course.'.$ENV{'request.course.id'}. + '.default_enrollment_start_date'}; + } + } + if (! defined($endtime)) { + $endtime = time+(6*30*24*60*60); # 6 months from now, approx + if (exists($ENV{'course.'.$ENV{'request.course.id'}. + '.default_enrollment_end_date'})) { + $endtime = $ENV{'course.'.$ENV{'request.course.id'}. + '.default_enrollment_end_date'}; + } + } + my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform', + 'startdate', + $starttime); + my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform', + 'enddate', + $endtime); + return ($startdateform,$enddateform); +} + +sub get_dates_from_form { + my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate'); + my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate'); + if ($ENV{'form.no_end_date'}) { + $enddate = 0; + } + return ($startdate,$enddate); +} + +sub date_setting_table { + my ($starttime,$endtime) = @_; + my ($startform,$endform)=&setup_date_selectors($starttime,$endtime); + my $dateDefault = ''. + ''. + ' make these dates the default for future enrollment'; + my $perpetual = ''; + my $result = ''; + $result .= "\n"; + $result .= ''. + ''. + ''."\n"; + $result .= ''. + ''. + ''."\n"; + $result .= "
Starting Date'.$startform.''.$dateDefault.'
Ending Date'.$endform.''.$perpetual.'
\n"; + return $result; +} + +sub make_dates_default { + my ($startdate,$enddate) = @_; + my $result = ''; + my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; + my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'}; + my $put_result = &Apache::lonnet::put('environment', + {'default_enrollment_start_date'=>$startdate, + 'default_enrollment_end_date' =>$enddate},$dom,$crs); + if ($put_result eq 'ok') { + $result .= "Set default start and end dates for course
"; + # + # Refresh the course environment + &Apache::lonnet::coursedescription($ENV{'request.course.id'}); + } else { + $result .= "Unable to set default dates for course:".$put_result. + '
'; + } + return $result; +} - my $today=time; - my $halfyear=$today+15552000; +## +## Single student enrollment routines (some of them) +## +sub get_student_username_domain_form { + my $r = shift; + my $domform = &Apache::loncommon::select_dom_form + ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'},'cudomain',0); + $r->print(< + +

Enroll One Student

+ + + + + + + +
Username:
Domain:$domform
  + +
+END + return; +} - my $defdom=$r->dir_config('lonDefDomain'); - my $javascript_validations=&javascript_validations($krbdefdom); - $r->print(< +sub print_enroll_single_student_form { + my $r=shift; + $r->print("

Enroll One Student

"); + # + my $username = $ENV{'form.cuname'}; + my $domain = $ENV{'form.cudomain'}; + my $home = &Apache::lonnet::homeserver($username,$domain); + # $new_user flags whether we are creating a new user or using an old one + my $new_user = 1; + if ($home ne 'no_host') { + $new_user = 0; + } + # + my $user_data_html = ''; + my $javascript_validations = ''; + if ($new_user) { + my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; + # Set up authentication forms + my ($krbdef,$krbdefdom) = + &Apache::loncommon::get_kerberos_defaults($domain); + $javascript_validations=&javascript_validations($krbdefdom); + my %param = ( formname => 'document.studentform', + kerb_def_dom => $krbdefdom, + kerb_def_auth => $krbdef + ); + my $krbform = &Apache::loncommon::authform_kerberos(%param); + my $intform = &Apache::loncommon::authform_internal(%param); + my $locform = &Apache::loncommon::authform_local(%param); + # + # Set up domain selection form + my $homeserver_form = ''; + my %servers = &Apache::loncommon::get_library_servers($domain); + $homeserver_form = '\n"; + # + # + $user_data_html = <User Data for $username\@$domain + + + + + + + + + + + +
First Name:
Middle Name:
Last Name:
Generation:
Home Server:$homeserver_form
+

Password

+Please select an authentication mechanism + +

+$krbform +
+$intform +
+$locform +

+END + } else { + # User already exists. Do not worry about authentication + my %uenv = &Apache::lonnet::dump('environment',$domain,$username); + $javascript_validations = &javascript_validations_without_auth(); + $user_data_html = <User Data for $username\@$domain + +
+ + + + + + + + +
First Name: + +
Middle Name: + +
Last Name: + +
Generation: + +
+END + } + my $date_table = &date_setting_table(); + # Print it all out + $r->print(< + + + + -

Personal Data

-First Name:
-Middle Name:
-Last Name:
-Generation:

- -ID/Student Number:

- -Group/Section:

- -

Login Data

-Username:

-Domain:

-Note: login settings below will not take effect if the user already exists

- - -Kerberos authenticated with domain -

- -Internally authenticated (with initial password -) -

- -Local Authentication with argument - + +$user_data_html + +

Course Data

+ +

Group/Section: +

+$date_table

-

Starting and Ending Dates

- - - - - -Set Starting Date

- -Set Ending Date

ID/Student Number

- +

+ID/Student Number: +

+ Disable ID/Student Number Safeguard and Force Change of Conflicting IDs -(only do if you know what you are doing)

-
- -ENDSENROLL +(only do if you know what you are doing) +

+ +

+END + return; } # ========================================================= Menu Phase Two Drop +sub print_drop_menu { + my $r=shift; + $r->print("

Drop Students

"); + my $cid=$ENV{'request.course.id'}; + my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { + $r->print("There are no students currently enrolled.\n"); + return; + } + # Print out the available choices + &show_drop_list($r,$classlist,$keylist); + return; +} -sub menu_phase_two_drop { +# ============================================== view classlist +sub print_html_classlist { my $r=shift; + if (! exists($ENV{'form.sortby'})) { + $ENV{'form.sortby'} = 'username'; + } + if ($ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) { + $ENV{'form.Status'} = 'Active'; + } + my $status_select = &Apache::lonhtmlcommon::StatusOptions + ($ENV{'form.Status'},'studentform'); + $r->print(< + +

+Current Class List +      +END + if ($ENV{'form.action'} ne 'modifystudent') { + $r->print(< +CSV format +         +Excel format + +      +Student Status: +END + } + $r->print($status_select."

\n"); my $cid=$ENV{'request.course.id'}; - my $classlst=&Apache::lonnet::reply - ('dump:'.$ENV{'course.'.$cid.'.domain'}.':'. - $ENV{'course.'.$cid.'.num'}.':classlist', - $ENV{'course.'.$cid.'.home'}); - my %currentlist=(); - my $now=time; - unless ($classlst=~/^error\:/) { - foreach (split(/\&/,$classlst)) { - my ($name,$value)=split(/\=/,$_); - my ($end,$start)=split(/\:/, - &Apache::lonnet::unescape($value)); - my $active=1; - if (($end) && ($now>$end)) { $active=0; } - if ($active) { - $currentlist{&Apache::lonnet::unescape($name)}=1; - } - } -# ----------------------------------------------------------- Print out choices - &show_drop_list($r,%currentlist); - } else { - $r->print( - '

Could not access classlist: '.$classlst. - '

'); - } + my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { + $r->print("There are no students currently enrolled.\n"); + } else { + # Print out the available choices + if ($ENV{'form.action'} eq 'modifystudent') { + &show_class_list($r,'view','modify','modifystudent', + $ENV{'form.Status'},$classlist,$keylist); + } else { + &show_class_list($r,'view','aboutme','classlist', + $ENV{'form.Status'},$classlist,$keylist); + } + } +} + +# ============================================== view classlist +sub print_formatted_classlist { + my $r=shift; + my $mode = shift; + my $cid=$ENV{'request.course.id'}; + my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { + $r->print("There are no students currently enrolled.\n"); + } else { + &show_class_list($r,$mode,'nolink','csv', + $ENV{'form.Status'},$classlist,$keylist); + } } # =================================================== Show student list to drop +sub show_class_list { + my ($r,$mode,$linkto,$action,$statusmode,$classlist,$keylist)=@_; + my $cid=$ENV{'request.course.id'}; + # + # Variables for excel output + my ($excel_workbook, $excel_sheet, $excel_filename,$row); + # + my $sortby = $ENV{'form.sortby'}; + if ($sortby !~ /^(username|domain|section|fullname|id)$/) { + $sortby = 'username'; + } + # Print out header + if ($mode eq 'view') { + if ($linkto eq 'aboutme') { + $r->print('Select a user name to view the users personal page.'); + } elsif ($linkto eq 'modify') { + $r->print('Select a user name to modify the students information'); + } + $r->print(< + + +

+ + + +END + } elsif ($mode eq 'csv') { + if($statusmode eq 'Expired') { + $r->print('"Students with expired roles"'); + } + if ($statusmode eq 'Any') { + $r->print('"'.join('","',("username","domain","ID","student name", + "section","status")).'"'."\n"); + } else { + $r->print('"'.join('","',("username","domain","ID","student name", + "section")).'"'."\n"); + } + } elsif ($mode eq 'excel') { + # Create the excel spreadsheet + $excel_filename = '/prtspool/'. + $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. + time.'_'.rand(1000000000).'.xls'; + $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'. + $excel_filename); + $excel_workbook->set_tempdir('/home/httpd/perl/tmp'); + $excel_sheet = $excel_workbook->addworksheet('classlist'); + # + my $description = 'Class List for '. + $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; + $excel_sheet->write($row++,0,$description); + # + $excel_sheet->write($row++,0,["username","domain","ID", + "student name","section","status"]); + } + # + # Sort the students + my %index; + my $i; + foreach (@$keylist) { + $index{$_} = $i++; + } + my $index = $index{$sortby}; + my $second = $index{'username'}; + my $third = $index{'domain'}; + my @Sorted_Students = sort { + lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index]) + || + lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second]) + || + lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third]) + } (keys(%$classlist)); + foreach my $student (@Sorted_Students) { + my $username = $classlist->{$student}->[$index{'username'}]; + my $domain = $classlist->{$student}->[$index{'domain'}]; + my $section = $classlist->{$student}->[$index{'section'}]; + my $name = $classlist->{$student}->[$index{'fullname'}]; + my $id = $classlist->{$student}->[$index{'id'}]; + my $status = $classlist->{$student}->[$index{'status'}]; + next if (($statusmode ne 'Any') && ($status ne $statusmode)); + if ($mode eq 'view') { + $r->print("\n + + + + + +END + } elsif ($mode eq 'csv') { + # no need to bother with $linkto + my @line = (); + foreach ($username,$domain,$id,$name,$section) { + push @line,&Apache::loncommon::csv_translate($_); + } + if ($statusmode eq 'Any') { + push @line,&Apache::loncommon::csv_translate($status); + } + my $tmp = $"; + $" = '","'; + $r->print("\"@line\"\n"); + $" = $tmp; + } elsif ($mode eq 'excel') { + $excel_sheet->write($row++,0,[$username,$domain,$id, + $name,$section,$status]); + } + } + if ($mode eq 'view') { + $r->print('
+ username + + domain + + ID + + student name + + section +
\n "); + if ($linkto eq 'nothing') { + $r->print($username); + } elsif ($linkto eq 'aboutme') { + $r->print(&Apache::loncommon::aboutmewrapper($username, + $username, + $domain)); + } elsif ($linkto eq 'modify') { + $r->print(''. + $username."\n"); + } + $r->print(<<"END"); + $domain$id$name$section

'); + } elsif ($mode eq 'excel') { + $excel_workbook->close(); + $r->print('

'. + 'Your Excel spreadsheet is ready for download.

'."\n"); + } +} + + +# +# print out form for modification of a single students data +# +sub print_modify_student_form { + my $r = shift(); + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['sdom','sname']); + my $sname = $ENV{'form.sname'}; + my $sdom = $ENV{'form.sdom'}; + my $sortby = $ENV{'form.sortby'}; + # determine the students name information + my %info=&Apache::lonnet::get('environment', + ['firstname','middlename', + 'lastname','generation','id'], + $sdom, $sname); + my ($tmp) = keys(%info); + if ($tmp =~ /^(con_lost|error|no_such_host)/i) { + $r->print('Error'. + '

'. + 'Unable to retrieve environment data for '.$sname. + 'in domain '.$sdom.'

'. + 'Please contact your LON-CAPA administrator '. + 'regarding this situation.

'); + return; + } + # determine the students starting and ending times and section + my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom); + if ($starttime =~ /^error/) { + $r->print('

Error

'); + $r->print('

'.$starttime.'

'); + return; + } + # Deal with date forms + my $date_table = &date_setting_table($starttime,$endtime); + # + if (! exists($ENV{'form.Status'}) || + $ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) { + $ENV{'form.Status'} = 'crap'; + } + # Make sure student is enrolled in course + $r->print(< + +Only domain coordinators can change a users password. + +

+ + + + + + + +

Modify Enrollment for $info{'firstname'} $info{'middlename'} +$info{'lastname'} $info{'generation'}, $sname\@$sdom

+

+Student Name + + + +
FirstMiddleLastGeneration
+ + + +
+

+Student ID: +

+ +Disable ID/Student Number Safeguard and Force Change of Conflicting IDs +(only do if you know what you are doing) +

+Section: +

+

$date_table

+ + +END + return; +} +# +# modify a single students section +# +sub modify_single_student { + my $r = shift; + # + # Remove non alphanumeric values from the section + $ENV{'form.section'} =~ s/\W//g; + # + # Do the date defaults first + my ($starttime,$endtime) = &get_dates_from_form(); + if ($ENV{'form.makedatesdefault'}) { + $r->print(&make_dates_default($starttime,$endtime)); + } + # Get the 'sortby' and 'Status' variables so the user goes back to their + # previous screen + my $sortby = $ENV{'form.sortby'}; + my $status = $ENV{'form.Status'}; + # + # We always need this information + my $slogin = $ENV{'form.slogin'}; + my $sdom = $ENV{'form.sdomain'}; + # + # Get the old data + my %old=&Apache::lonnet::get('environment', + ['firstname','middlename', + 'lastname','generation','id'], + $sdom, $slogin); + $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin, + $ENV{'request.course.id'}); + my ($tmp) = keys(%old); + if ($tmp =~ /^(con_lost|error|no_such_host)/i) { + $r->print("There was an error determining the environment values ". + " for $slogin \@ $sdom."); + return; + } + undef $tmp; + # + # Get the new data + my $firstname = $ENV{'form.firstname'}; + my $middlename = $ENV{'form.middlename'}; + my $lastname = $ENV{'form.lastname'}; + my $generation = $ENV{'form.generation'}; + my $section = $ENV{'form.section'}; + my $courseid = $ENV{'request.course.id'}; + my $sid = $ENV{'form.id'}; + my $displayable_starttime = localtime($starttime); + my $displayable_endtime = localtime($endtime); + # + # check for forceid override + if ((defined($old{'id'})) && ($old{'id'} ne '') && + ($sid ne $old{'id'}) && (! exists($ENV{'form.forceid'}))) { + $r->print("You changed the students id ". + " but did not disable the ID change safeguard.". + " The students id will not be changed."); + $sid = $old{'id'}; + } + # + # talk to the user about what we are going to do + $r->print(<Modifying data for user $slogin \@ $sdom +

Student Information

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Field Old Value New Value
First name $old{'firstname'} $firstname
Middle name $old{'middlename'} $middlename
Last name $old{'lastname'} $lastname
Generation $old{'generation'} $generation
ID $old{'id'} $sid
Section $old{'section'} $section
+

Role Information

+ + + +
Start Time: $displayable_starttime
End Time: $displayable_endtime
+

+END + # + # Send request(s) to modify data (final undef is for 'desiredhost', + # which is a moot point because the student already has an account. + my $modify_section_results = &modifystudent($sdom,$slogin, + $ENV{'request.course.id'}, + $section,undef); + if ($modify_section_results !~ /^ok/) { + $r->print("An error occured during the attempt to change the ". + "section for this student.
"); + } + my $roleresults = &Apache::lonnet::modifystudent + ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname, + $generation,$section,$endtime,$starttime,$ENV{'form.forceid'}); + if ($roleresults eq 'refused' ) { + $r->print("Your request to change the role information for this ". + "student was refused. You do not appear to have ". + "sufficient authority to change student information."); + } elsif ($roleresults !~ /ok/) { + $r->print("An error occurred during the attempt to change the role". + " information for this student.
". + "The error reported was ". + $roleresults); + &Apache::lonnet::logthis("londropadd:failed attempt to modify student". + " data for ".$slogin." \@ ".$sdom." by ". + $ENV{'user.name'}." \@ ".$ENV{'user.domain'}. + ":".$roleresults); + } else { # everything is okay! + $r->print("Student information updated successfully.
". + "The student must log out and log in again to see ". + "these changes."); + } + $r->print(<

+ + + +Modify another students data + +END + return; +} + +sub get_enrollment_data { + my ($sname,$sdomain) = @_; + my $courseid = $ENV{'request.course.id'}; + $courseid =~ s:_:/:g; + my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname); + my ($tmp) = keys(%roles); + # Bail out if we were unable to get the students roles + return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i); + # Go through the roles looking for enrollment in this course + my ($end,$start) = (undef,undef); + my $section = ''; + my $count = scalar(keys(%roles)); + while (my ($course,$role) = each(%roles)) { + if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) { + # + # Get active role + $section=$1; + (undef,$end,$start)=split(/\_/,$role); + my $now=time; + my $notactive=0; + if ($start) { + if ($now<$start) { $notactive=1; } + } + if ($end) { + if ($now>$end) { $notactive=1; } + } + unless ($notactive) { return ($start,$end,$section); } + } + } + return ($start,$end,$section); +} + +################################################# +################################################# + +=pod + +=item show_drop_list + +Display a list of students to drop +Inputs: + +=over 4 + +=item $r, Apache request + +=item $classlist, hash pointer returned from loncoursedata::get_classlist(); + +=item $keylist, array pointer returned from loncoursedata::get_classlist() +which describes the order elements are stored in the %$classlist values. + +=item $nosort, if true, sorting links are omitted. + +=back + +=cut + +################################################# +################################################# sub show_drop_list { - my ($r,%currentlist)=@_; + my ($r,$classlist,$keylist,$nosort)=@_; my $cid=$ENV{'request.course.id'}; + if (! exists($ENV{'form.sortby'})) { + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['sortby']); + } + my $sortby = $ENV{'form.sortby'}; + if ($sortby !~ /^(username|domain|section|fullname|id)$/) { + $sortby = 'username'; + } + # + my $action = "drop"; + $r->print(< + + + +

+ +END -# ================================================= Drop/Add from uploaded file + if ($nosort) { + $r->print(< + +   + username + domain + ID + student name + section + +END + + } else { + $r->print(< +  + + username + + domain + + ID + + student name + + section + + +END + } + # + # Sort the students + my %index; + my $i; + foreach (@$keylist) { + $index{$_} = $i++; + } + my $index = $index{$sortby}; + my $second = $index{'username'}; + my $third = $index{'domain'}; + my @Sorted_Students = sort { + lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index]) + || + lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second]) + || + lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third]) + } (keys(%$classlist)); + foreach my $student (@Sorted_Students) { + my $error; + my $username = $classlist->{$student}->[$index{'username'}]; + my $domain = $classlist->{$student}->[$index{'domain'}]; + my $section = $classlist->{$student}->[$index{'section'}]; + my $name = $classlist->{$student}->[$index{'fullname'}]; + my $id = $classlist->{$student}->[$index{'id'}]; + my $status = $classlist->{$student}->[$index{'status'}]; + next if ($status ne 'Active'); + # + $r->print(<<"END"); + + + $username + $domain + $id + $name + $section + +END + } + $r->print('
'); + $r->print(<<"END"); +

+   + +

+END + return; +} -sub upfile_drop_add { +# +# Print out the initial form to get the courselist file +# +sub print_first_courselist_upload_form { my $r=shift; + my $upfile_select=&Apache::loncommon::upfile_select_html(); + my $create_classlist_help = + &Apache::loncommon::help_open_topic("Course_Create_Class_List", + "How do I create a class list from a spreadsheet"); + my $create_csv_help = + &Apache::loncommon::help_open_topic("Course_Convert_To_CSV", + "How do I create a CSV file from a spreadsheet"); + $r->print(< +

Upload a courselist

+$upfile_select +

+ + + + Ignore First Line
+

+$create_classlist_help
+$create_csv_help + +ENDUPFORM + return; +} +# ================================================= Drop/Add from uploaded file +sub upfile_drop_add { + my $r=shift; &Apache::loncommon::load_tmp_file($r); my @studentdata=&Apache::loncommon::upfile_record_sep(); - - my @keyfields=split(/\,/,$ENV{'form.keyfields'}); - my $cid=$ENV{'request.course.id'}; - my %fields=(); - for (my $i=0;$i<=$ENV{'form.nfields'};$i++) { - if ($ENV{'form.upfile_associate'} eq 'reverse') { - if ($ENV{'form.f'.$i} ne 'none') { - $fields{$keyfields[$i]}=$ENV{'form.f'.$i}; - } - } else { - $fields{$ENV{'form.f'.$i}}=$keyfields[$i]; - } - } - my $startdate=$ENV{'form.startdate'}; - my $enddate=$ENV{'form.enddate'}; - if ($startdate=~/\D/) { $startdate=''; } - if ($enddate=~/\D/) { $enddate=''; } - my $domain=$ENV{'form.lcdomain'}; - my $amode=''; - my $genpwd=''; - if ($ENV{'form.login'} eq 'krb') { - $amode='krb4'; - $genpwd=$ENV{'form.krbdom'}; - } elsif ($ENV{'form.login'} eq 'int') { - $amode='internal'; - if ((defined($ENV{'form.intpwd'})) && ($ENV{'form.intpwd'})) { - $genpwd=$ENV{'form.intpwd'}; - } - } elsif ($ENV{'form.login'} eq 'loc') { - $amode='localauth'; - if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) { - $genpwd=$ENV{'form.locarg'}; - } - } - unless (($domain=~/\W/) || ($amode eq '')) { - $r->print('

Enrolling Students

'); - my $count=0; - my $flushc=0; - my %student=(); -# ----------------------------------------------------------- Get new classlist -# --------------------------------------------------------- Enroll new students - foreach (@studentdata) { - my %entries=&Apache::loncommon::record_sep($_); - - unless (($entries{$fields{'username'}} eq '') || - (!defined($entries{$fields{'username'}}))) { - my $fname=''; my $mname=''; my $lname=''; my $gen=''; - if (defined($fields{'names'})) { - ($lname,$fname,$mname)= - ($entries{$fields{'names'}}=~/([^\,]+)\,\s*(\w+)\s*(.*)$/); - } else { - if (defined($fields{'fname'})) { - $fname=$entries{$fields{'fname'}}; - } - if (defined($fields{'mname'})) { - $mname=$entries{$fields{'mname'}}; - } - if (defined($fields{'lname'})) { - $lname=$entries{$fields{'lname'}}; - } - if (defined($fields{'gen'})) { - $gen=$entries{$fields{'gen'}}; - } - } - if ($entries{$fields{'username'}}=~/\W/) { - $r->print('

Unacceptable username: '. + if($ENV{'form.noFirstLine'}){shift(@studentdata);} + my @keyfields = split(/\,/,$ENV{'form.keyfields'}); + my $cid = $ENV{'request.course.id'}; + my %fields=(); + for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) { + if ($ENV{'form.upfile_associate'} eq 'reverse') { + if ($ENV{'form.f'.$i} ne 'none') { + $fields{$keyfields[$i]}=$ENV{'form.f'.$i}; + } + } else { + $fields{$ENV{'form.f'.$i}}=$keyfields[$i]; + } + } + # + my ($startdate,$enddate) = &get_dates_from_form(); + if ($ENV{'form.makedatesdefault'}) { + $r->print(&make_dates_default($startdate,$enddate)); + } + # Determine domain and desired host (home server) + my $domain=$ENV{'form.lcdomain'}; + my $desiredhost = $ENV{'form.lcserver'}; + if (lc($desiredhost) eq 'default') { + $desiredhost = undef; + } else { + my %home_servers = &Apache::loncommon::get_library_servers($domain); + if (! exists($home_servers{$desiredhost})) { + $r->print('Error:'. + 'Invalid home server specified'); + return; + } + } + # Determine authentication mechanism + my $amode = ''; + my $genpwd = ''; + if ($ENV{'form.login'} eq 'krb') { + $amode='krb'; + $amode.=$ENV{'form.krbver'}; + $genpwd=$ENV{'form.krbarg'}; + } elsif ($ENV{'form.login'} eq 'int') { + $amode='internal'; + if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) { + $genpwd=$ENV{'form.intarg'}; + } + } elsif ($ENV{'form.login'} eq 'loc') { + $amode='localauth'; + if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) { + $genpwd=$ENV{'form.locarg'}; + } + } + if ($amode =~ /^krb/) { + if (! defined($genpwd) || $genpwd eq '') { + $r->print(''. + 'Unable to enroll students:'.' '. + 'No Kerberos domain was specified.

'); + $amode = ''; # This causes the loop below to be skipped + } + } + unless (($domain=~/\W/) || ($amode eq '')) { + ####################################### + ## Enroll Students ## + ####################################### + $r->print('

Enrolling Students

'."\n".'

'); + my $count=0; + my $flushc=0; + my %student=(); + # Get new classlist + foreach (@studentdata) { + my %entries=&Apache::loncommon::record_sep($_); + # Determine student name + unless (($entries{$fields{'username'}} eq '') || + (!defined($entries{$fields{'username'}}))) { + my ($fname, $mname, $lname,$gen) = ('','','',''); + if (defined($fields{'names'})) { + ($lname,$fname,$mname)=($entries{$fields{'names'}}=~ + /([^\,]+)\,\s*(\w+)\s*(.*)$/); + } else { + if (defined($fields{'fname'})) { + $fname=$entries{$fields{'fname'}}; + } + if (defined($fields{'mname'})) { + $mname=$entries{$fields{'mname'}}; + } + if (defined($fields{'lname'})) { + $lname=$entries{$fields{'lname'}}; + } + if (defined($fields{'gen'})) { + $gen=$entries{$fields{'gen'}}; + } + } + if ($entries{$fields{'username'}}=~/\W/) { + $r->print('
Unacceptable username: '. $entries{$fields{'username'}}.' for user '. - $fname.' '.$mname.' '.$lname.' '.$gen.'

'); - } else { - my $sec=''; - my $username=$entries{$fields{'username'}}; - if (defined($fields{'sec'})) { - if (defined($entries{$fields{'sec'}})) { - $sec=$entries{$fields{'sec'}}; - } - } - my $id=''; - if (defined($fields{'id'})) { - if (defined($entries{$fields{'id'}})) { - $id=$entries{$fields{'id'}}; - } - $id=~tr/A-Z/a-z/; - } - my $password=''; - if ($genpwd) { - $password=$genpwd; - } else { - if (defined($fields{'ipwd'})) { - if ($entries{$fields{'ipwd'}}) { - $password=$entries{$fields{'ipwd'}}; - } - } - } - if ($password) { - &dropstudent($domain,$username,$cid,$sec); - my $reply=&Apache::lonnet::modifystudent( - $domain,$username,$id,$amode,$password, - $fname,$mname,$lname,$gen,$sec,$enddate,$startdate, - $ENV{'form.forceid'}); - unless ($reply eq 'ok') { - $r->print( - "

Error enrolling $username: $reply

"); + $fname.' '.$mname.' '.$lname.' '.$gen.''); + } else { + # determine section number + my $sec=''; + my $username=$entries{$fields{'username'}}; + if (defined($fields{'sec'})) { + if (defined($entries{$fields{'sec'}})) { + $sec=$entries{$fields{'sec'}}; + } + } + # remove non alphanumeric values from section + $sec =~ s/\W//g; + # determine student id number + my $id=''; + if (defined($fields{'id'})) { + if (defined($entries{$fields{'id'}})) { + $id=$entries{$fields{'id'}}; + } + $id=~tr/A-Z/a-z/; + } + # determine email address + my $email=''; + if (defined($fields{'email'})) { + if (defined($entries{$fields{'email'}})) { + $email=$entries{$fields{'email'}}; + unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; } + } + } + # determine student password + my $password=''; + if ($genpwd) { + $password=$genpwd; + } else { + if (defined($fields{'ipwd'})) { + if ($entries{$fields{'ipwd'}}) { + $password=$entries{$fields{'ipwd'}}; + } + } + } + # Clean up whitespace + foreach (\$domain,\$username,\$id,\$fname,\$mname, + \$lname,\$gen,\$sec) { + $$_ =~ s/(\s+$|^\s+)//g; + } + if ($password || $ENV{'form.login'} eq 'loc') { + &modifystudent($domain,$username,$cid,$sec, + $desiredhost); + my $reply=&Apache::lonnet::modifystudent + ($domain,$username,$id,$amode,$password, + $fname,$mname,$lname,$gen,$sec,$enddate, + $startdate,$ENV{'form.forceid'},$desiredhost, + $email); + if ($reply ne 'ok') { + $reply =~ s/^error://; + $r->print('
'.$username.':'. + ' Unable to enroll: '.$reply); } else { $count++; $flushc++; $student{$username}=1; @@ -833,148 +1707,207 @@ sub upfile_drop_add { $flushc=0; } } - } else { - $r->print( - "

No password for $username

"); - } - } - } - } - $r->print('

Processed Students: '.$count); -# --------------------------------------------------------------- Drop students - if ($ENV{'form.fullup'} eq 'yes') { - $r->print('

Dropping Students

'); -# ------------------------------------------------------- Get current classlist - my $classlst=&Apache::lonnet::reply - ('dump:'.$ENV{'course.'.$cid.'.domain'}.':'. - $ENV{'course.'.$cid.'.num'}.':classlist', - $ENV{'course.'.$cid.'.home'}); - my %currentlist=(); - my $now=time; - unless ($classlst=~/^error\:/) { - foreach (split(/\&/,$classlst)) { - my ($name,$value)=split(/\=/,$_); - my ($end,$start)=split(/\:/, - &Apache::lonnet::unescape($value)); - my $active=1; - if (($end) && ($now>$end)) { $active=0; } - if ($active) { - $currentlist{&Apache::lonnet::unescape($name)}=1; - } - } -# ------------------------------------------------ Now got up-to-date classlist - foreach (@studentdata) { - my %entries=&Apache::loncommon::record_sep($_); - unless (($entries{$fields{'username'}} eq '') || - (!defined($entries{$fields{'username'}}))) { - delete($currentlist{ - $entries{$fields{'username'}}.':'. - $domain}); - } - } -# ----------------------------------------------------------- Print out choices - &show_drop_list($r,%currentlist); - } else { - $r->print( - '

Could not access classlist: '.$classlst. - '

'); - } - } -# ------------------------------------------------------------------------ Done - - } + } else { + $r->print('
'.$username.':'. + ' Unable to enroll: No password specified.'); + } + } + } + } # end of foreach (@studentdata) + $r->print('

Processed Students: '.$count.'

'); + $r->print("

If active, the new role will be available when the ". + "students next log in to LON-CAPA.

"); + ##################################### + # Drop students # + ##################################### + if ($ENV{'form.fullup'} eq 'yes') { + $r->print('

Dropping Students

'); + # Get current classlist + my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { + $r->print("There are no students currently enrolled.\n"); + } else { + # Remove the students we just added from the list of students. + foreach (@studentdata) { + my %entries=&Apache::loncommon::record_sep($_); + unless (($entries{$fields{'username'}} eq '') || + (!defined($entries{$fields{'username'}}))) { + delete($classlist->{$entries{$fields{'username'}}. + ':'.$domain}); + } + } + # Print out list of dropped students. + &show_drop_list($r,$classlist,$keylist,'nosort'); + } + } + } # end of unless } # ================================================================== Phase four - sub drop_student_list { my $r=shift; my $count=0; - foreach (keys %ENV) { - if ($_=~/^form\.drop\:/) { - my ($dummy,$uname,$udom)=split(/\:/,$_); - &dropstudent($udom,$uname,$ENV{'request.course.id'}); - $r->print('Dropped '.$uname.' at '.$udom.'
'); + my @droplist; + if (ref($ENV{'form.droplist'})) { + @droplist = @{$ENV{'form.droplist'}}; + } else { + @droplist = ($ENV{'form.droplist'}); + } + foreach (@droplist) { + my ($uname,$udom)=split(/\:/,$_); + # drop student + my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'}); + if ($result eq 'ok' || $result eq 'ok:') { + $r->print('Dropped '.$uname.' @ '.$udom.'
'); $count++; + } else { + $r->print('Error dropping '.$uname.' @ '.$udom.': '.$result. + '
'); } } $r->print('

Dropped '.$count.' student(s).'); - $r->print('

Re-enrollment will re-activate data.'); + $r->print('

Re-enrollment will re-activate data.') if ($count); } -# ================================================================ Main Handler - -sub handler { - my $r=shift; - $Apache::lonxml::debug=1; - if ($r->header_only) { - $r->content_type('text/html'); - $r->send_http_header; - return OK; - } +################################################################### +################################################################### -# ----------------------------------------------------- Needs to be in a course - - if (($ENV{'request.course.fn'}) && - (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) { - -# ------------------------------------------------------------------ Start page - $r->content_type('text/html'); - $r->send_http_header; - &header($r); - -# --------------------------------------------------- Phase one, initial screen - unless ($ENV{'form.phase'}) { - &menu_phase_one($r); - } -# ------------------------------------------------------------------- Phase two - - if ($ENV{'form.associate'} eq 'Reverse Association') { - $ENV{'form.phase'} = 'two'; - if ( $ENV{'form.upfile_associate'} ne 'reverse' ) { - $ENV{'form.upfile_associate'} = 'reverse'; - } else { - $ENV{'form.upfile_associate'} = 'forward'; - } - } - if ($ENV{'form.phase'} eq 'two') { - if ($ENV{'form.fileupload'}) { - &menu_phase_two_upload($r); - } elsif ($ENV{'form.enroll'}) { - &menu_phase_two_enroll($r); - } elsif ($ENV{'form.drop'}) { - &menu_phase_two_drop($r); - } - } +=pod +=item &handler + +The typical handler you see in all these modules. Takes $r, the +http request, as an argument. + +The response to the request is governed by two form variables + + form.action form.state response + --------------------------------------------------- + undefined undefined print main menu + upload undefined print courselist upload menu + upload got_file deal with uploaded file, + print the upload managing menu + upload enrolling enroll students based on upload + drop undefined print the classlist ready to drop + drop done drop the selected students + enrollstudent undefined print student username domain form + enrollstudent gotusername print single student enroll menu + enrollstudent enrolling enroll student + classlist undefined print html classlist + classlist csv print csv classlist + modifystudent undefined print classlist to select student to modify + modifystudent selected print modify student menu + modifystudent done make modifications to student record +=cut - -# ----------------------------------------------------------------- Phase three - if ($ENV{'form.phase'} eq 'three') { - if ($ENV{'form.datatoken'}) { - &upfile_drop_add($r); - } - } -# ------------------------------------------------------------------ Phase four - if ($ENV{'form.phase'} eq 'four') { - &drop_student_list($r); - } -# ------------------------------------------------------------------ Phase five - if ($ENV{'form.phase'} eq 'five') { - &enroll_single_student($r); - } -# ------------------------------------------------------------------------- End - $r->print('

'); - } else { -# ----------------------------- Not in a course, or not allowed to modify parms - $ENV{'user.error.msg'}= - "/adm/dropadd:cst:0:0:Cannot drop or add students"; - return HTTP_NOT_ACCEPTABLE; - } - return OK; +################################################################### +################################################################### +sub handler { + my $r=shift; + if ($r->header_only) { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + return OK; + } + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['action','state']); + # Needs to be in a course + if (! (($ENV{'request.course.fn'}) && + (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'})))) { + # Not in a course, or not allowed to modify parms + $ENV{'user.error.msg'}= + "/adm/dropadd:cst:0:0:Cannot drop or add students"; + return HTTP_NOT_ACCEPTABLE; + } + # + # Only output the header information if they did not request csv format + # + if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) { + $r->content_type('text/csv'); + } else { + # Start page + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + $r->print(&header()); + } + # + # Main switch on form.action and form.state, as appropriate + if (! exists($ENV{'form.action'})) { + &print_main_menu($r); + } elsif ($ENV{'form.action'} eq 'upload') { + if (! exists($ENV{'form.state'})) { + &print_first_courselist_upload_form($r); + } elsif ($ENV{'form.state'} eq 'got_file') { + &print_upload_manager_form($r); + } elsif ($ENV{'form.state'} eq 'enrolling') { + if ($ENV{'form.datatoken'}) { + &upfile_drop_add($r); + } else { + # Hmmm, this is an error + } + } else { + &print_first_courselist_upload_form($r); + } + } elsif ($ENV{'form.action'} eq 'drop') { + if (! exists($ENV{'form.state'})) { + &print_drop_menu($r); + } elsif ($ENV{'form.state'} eq 'done') { + &drop_student_list($r); + } else { + &print_drop_menu($r); + } + } elsif ($ENV{'form.action'} eq 'enrollstudent') { + if (! exists($ENV{'form.state'})) { + &get_student_username_domain_form($r); + } elsif ($ENV{'form.state'} eq 'gotusername') { + &print_enroll_single_student_form($r); + } elsif ($ENV{'form.state'} eq 'enrolling') { + &enroll_single_student($r); + } else { + &get_student_username_domain_form($r); + } + } elsif ($ENV{'form.action'} eq 'classlist') { + if (! exists($ENV{'form.state'})) { + &print_html_classlist($r); + } elsif ($ENV{'form.state'} eq 'csv') { + &print_formatted_classlist($r,'csv'); + } elsif ($ENV{'form.state'} eq 'excel') { + &print_formatted_classlist($r,'excel'); + } else { + &print_html_classlist($r); + } + } elsif ($ENV{'form.action'} eq 'modifystudent') { + if (! exists($ENV{'form.state'})) { + &print_html_classlist($r); + } elsif ($ENV{'form.state'} eq 'selected') { + &print_modify_student_form($r); + } elsif ($ENV{'form.state'} eq 'done') { + &modify_single_student($r); + } else { + &print_html_classlist($r); + } + } else { + # We should not end up here, but I guess it is possible + &Apache::lonnet::logthis("Undetermined state in londropadd.pm. ". + "form.action = ".$ENV{'form.action'}. + "Someone should fix this."); + &print_main_menu($r); + } + # + # Finish up + if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) { + $r->print("\n"); + } else { + $r->print(''); + } + return OK; } +################################################################### +################################################################### + 1; __END__ + 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.