--- loncom/interface/Attic/londropadd.pm 2002/08/22 21:22:30 1.45.2.1 +++ loncom/interface/Attic/londropadd.pm 2003/09/08 14:30:47 1.85 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Handler to drop and add students in courses # -# $Id: londropadd.pm,v 1.45.2.1 2002/08/22 21:22:30 albertel Exp $ +# $Id: londropadd.pm,v 1.85 2003/09/08 14:30:47 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -31,49 +31,36 @@ # # (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; -# ================================================================ Print header - +############################################################### +############################################################### sub header { + my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager'); return(< LON-CAPA Enrollment Manager - - -

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

-

Enrollment Manager

+$bodytag
ENDHEAD } -# =========== Drop student from all sections of a course, except optional $csec +############################################################### +############################################################### +# 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 @@ -92,12 +79,16 @@ sub modifystudent { # We are in this course my $section=$1; $section='' if ($course eq $courseid.'_st'); - if ( ((!$section) && (!$csec)) || ($section ne $csec) ) { + if ($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 $reply=&Apache::lonnet::modifystudent - ($udom,$unam,'','','','','','','', + # dom name id mode pass f m l g + ($udom,$unam,'', '', '',undef,undef,undef,undef, $section,time,undef,undef,$desiredhost); $result .= $reply.':'; } @@ -105,14 +96,16 @@ sub modifystudent { } } if ($result eq '') { - $result eq 'Unable to find section for this student'; + $result = 'Unable to find section for this student'; } else { $result =~ s/(ok:)+/ok/g; } return $result; } -# ============ build a domain and server selection form +############################################################### +############################################################### +# build a domain and server selection form sub domain_form { my ($defdom) = @_; # Set up domain and server selection forms @@ -141,48 +134,58 @@ sub domain_form { return $result; } -# ============================================================== Menu Phase One -sub menu_phase_one { +############################################################### +############################################################### +# Menu Phase One +sub print_main_menu { 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 -

-
-$create_classlist_help
-$create_csv_help - -

-

Enroll a single student

-

-
-

Classlist

-

-

-
-

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
@@ -191,10 +194,12 @@ Total number of records found in file: $ 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 @@ -206,19 +211,23 @@ $javascript_validations ENDPICK } +############################################################### +############################################################### sub javascript_validations { my ($krbdefdom)=@_; my %param = ( formname => 'studentform', kerb_def_dom => $krbdefdom ); my $authheader = &Apache::loncommon::authform_header(%param); + my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition(); return (<=3) && @@ -348,6 +368,8 @@ function flip(vf,tf) { } } } + // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6), + // clear out any that are set to 'lastname, firstnames' (2) if ((nw>=3) && (nw<=6)) { for (i=0;i<=vf.nfields.value;i++) { if (eval('vf.f'+i+'.selectedIndex')==2) { @@ -355,6 +377,8 @@ function flip(vf,tf) { } } } + // If we set the password, make the password form below correspond to + // the new value. if (nw==9) { changed_radio('int',document.studentform); set_auth_radio_buttons('int',document.studentform); @@ -376,7 +400,9 @@ function clearpwd(vf) { ENDPICK } -sub phase_two_javascript_reverse_associate { +############################################################### +############################################################### +sub upload_manager_javascript_reverse_associate { return(< 'document.studentform'); + + my ($krbdef,$krbdefdom) = + &Apache::loncommon::get_kerberos_defaults($defdom); + 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); my $domform = &domain_form($defdom); + my $date_table = &date_setting_table(); $r->print(< @@ -454,18 +489,9 @@ $locform

LON-CAPA Domain for Students

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)

@@ -474,14 +500,14 @@ LON-CAPA domain: $domform

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); @@ -490,23 +516,28 @@ 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); @@ -519,14 +550,26 @@ 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'}." in domain ". + $r->print('

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

'); if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&& ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) { @@ -562,46 +605,244 @@ sub enroll_single_student { 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); - $r->print(&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'}, - $ENV{'form.csec'},$ENV{'form.enddate'}, - $ENV{'form.startdate'},$ENV{'form.forceid'}, - $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('

ERROR '. - 'Invalid login mode or password. '. - 'Unable to enroll '.$ENV{'form.cuname'}.'.

'); - } + $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 { $r->print('Invalid username or domain'); } } -# ======================================================= Menu Phase Two Enroll -sub menu_phase_two_enroll { +sub setup_date_selectors { + my ($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; +} + +## +## 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; +} + +sub print_enroll_single_student_form { my $r=shift; $r->print("

Enroll One Student

"); - my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/; - $krbdefdom=~tr/a-z/A-Z/; - my $today = time; - my $halfyear = $today+15552000; - my $defdom=$r->dir_config('lonDefDomain'); - my $javascript_validations=&javascript_validations($krbdefdom); - # Set up authentication forms - my %param = ( formname => 'document.studentform'); - 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 $domform = &domain_form($defdom); - # Print it all out - $r->print(< '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: $domform

-

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

-$krbform -

-$intform -

-$locform -

-

Starting and Ending Dates

- - - - - -

-Set Starting Date -

-Set Ending Date -

+ +$user_data_html + +

Course Data

+ +

Group/Section: +

+$date_table +

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)

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

+

-ENDSENROLL -} - -# =================================================== get the current classlist -sub get_current_classlist { - my ($domain,$identifier) = @_; - # domain is the domain the class is being run in - # identifier is the internal, unique identifier for the class. - my %currentlist=(); - my $now=time; - my %results=&Apache::lonnet::dump('classlist',$domain,$identifier); - my ($tmp) = keys(%results); - if ($tmp !~ /^(con_lost|error|no_such_host)/i) { - foreach my $student (keys(%results)) { - # Extract the start and end dates - my ($end,$start)=split(/\:/,$results{$student}); - # If the class isn't over, put it in the list - unless (($end) && ($now>$end)) { - $currentlist{$student}=1; - } - } - return (undef,%currentlist); - } else { - $tmp =~ s/^error://; - return ($tmp,undef); - } +END + return; } # ========================================================= Menu Phase Two Drop -sub menu_phase_two_drop { +sub print_drop_menu { my $r=shift; $r->print("

Drop Students

"); my $cid=$ENV{'request.course.id'}; - my ($error,%currentlist)=&get_current_classlist - ($ENV{'course.'.$cid.'.domain'},$ENV{'course.'.$cid.'.num'}); - if (defined($error)) { - if ($error =~ /^No such file or directory/) { - $r->print("There are no students currently enrolled.\n"); - } else { - $r->print("
ERROR:$error
"); - } - } elsif (!defined(%currentlist)) { + my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { $r->print("There are no students currently enrolled.\n"); - } else { - # Print out the available choices - &show_drop_list($r,%currentlist); + return; } + # Print out the available choices + &show_drop_list($r,$classlist,$keylist); + return; } # ============================================== view classlist -sub menu_phase_two_view { +sub print_html_classlist { my $r=shift; - $r->print("

Current Classlist

"); + 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 ($error,%currentlist)=&get_current_classlist - ($ENV{'course.'.$cid.'.domain'},$ENV{'course.'.$cid.'.num'}); - if (defined($error)) { - if ($error =~ /^No such file or directory/) { - $r->print("There are no students currently enrolled.\n"); - } else { - $r->print("
ERROR:$error
"); - } - } elsif (!defined(%currentlist)) { + my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { $r->print("There are no students currently enrolled.\n"); } else { # Print out the available choices - &show_class_list($r,'view',%currentlist); + 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 menu_phase_two_viewcsv { +sub print_formatted_classlist { my $r=shift; + my $mode = shift; my $cid=$ENV{'request.course.id'}; - my ($error,%currentlist)=&get_current_classlist - ($ENV{'course.'.$cid.'.domain'},$ENV{'course.'.$cid.'.num'}); - if (defined($error)) { - if ($error =~ /^No such file or directory/) { - $r->print("There are no students currently enrolled.\n"); - } else { - $r->print("
ERROR:$error
"); - } - } elsif (!defined(%currentlist)) { + my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist(); + if (! defined($classlist)) { $r->print("There are no students currently enrolled.\n"); } else { - &show_class_list($r,'csv',%currentlist); + &show_class_list($r,$mode,'nolink','csv', + $ENV{'form.Status'},$classlist,$keylist); } } # =================================================== Show student list to drop sub show_class_list { - my ($r,$mode,%currentlist)=@_; + my ($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') { - $r->print(<print('"Students with expired roles"'); + } + if ($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,$status]); + } } - foreach (sort keys %currentlist) { - my ($sname,$sdom)=split(/\:/,$_); - my %reply=&Apache::lonnet::idrget($sdom,$sname); - my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid); - my %info=&Apache::lonnet::get('environment', - ['firstname','middlename', - 'lastname','generation'], - $sdom, $sname); - my ($tmp) = keys(%info); - if ($tmp =~ /^(con_lost|error|no_such_host)/i) { - $r->print( ($mode eq 'view' ? - '' :'')); - } else { - if ($mode eq 'view') { - $r->print(<<"END"); + if ($mode eq 'view') { + $r->print('
usernamedomainIDstudent namegenerationsection
+ username + + domain + + ID + + student name + + section +
\n "); + if ($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
' :''). - 'Internal error: unable to get environment '. - 'for '.$sname.' in domain '.$sdom. - ( $mode eq 'view' ?'

'); + } 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); + # 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
$sname$sdom$reply{$sname}$info{'lastname'}, $info{'firstname'} $info{'middlename'}$info{'generation'}$ssec 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 - } elsif ($mode eq 'csv') { - my @line = (); - foreach ($sname,$sdom,$reply{$sname}, - $info{'lastname'},$info{'firstname'}, - $info{'middlename'},$info{'generation'},$ssec) { - push @line,&Apache::loncommon::csv_translate($_); - } - my $tmp = $"; - $" = '","'; - $r->print("\"@line\"\n"); - $" = $tmp; + # + # 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 "666" 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); } } } - $r->print('
') if ($mode eq 'view'); + return ($start,$end,$section); } -# =================================================== Show student list to drop +################################################# +################################################# + +=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'}; - $r->print(<<'END'); + if (! exists($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 + + if ($nosort) { + $r->print(< - usernamedomain -IDstudent namegeneration -section + +   + username + domain + ID + student name + section + END - foreach (sort keys %currentlist) { - my ($sname,$sdom)=split(/\:/,$_); - my %reply=&Apache::lonnet::idrget($sdom,$sname); - my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid); - my %info=&Apache::lonnet::get('environment', - ['firstname','middlename', - 'lastname','generation'], - $sdom, $sname); - my ($tmp) = keys(%info); - if ($tmp =~ /^(con_lost|error|no_such_host)/i) { - $r->print(''. - 'Internal error: unable to get environment '. - 'for '.$sname.' in domain '.$sdom.''); - } else { - $r->print(<<"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"); - - $sname - $sdom - $reply{$sname} - $info{'lastname'}, $info{'firstname'} $info{'middlename'} - $info{'generation'} - $ssec + + $username + $domain + $id + $name + $section END - } } $r->print('
'); $r->print(<<"END"); @@ -890,6 +1508,36 @@ END

END + return; +} + +# +# 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 @@ -897,6 +1545,7 @@ sub upfile_drop_add { my $r=shift; &Apache::loncommon::load_tmp_file($r); my @studentdata=&Apache::loncommon::upfile_record_sep(); + if($ENV{'form.noFirstLine'}){shift(@studentdata);} my @keyfields = split(/\,/,$ENV{'form.keyfields'}); my $cid = $ENV{'request.course.id'}; my %fields=(); @@ -910,10 +1559,10 @@ sub upfile_drop_add { } } # - my $startdate = $ENV{'form.startdate'}; - my $enddate = $ENV{'form.enddate'}; - if ($startdate=~/\D/) { $startdate=''; } - if ($enddate=~/\D/) { $enddate=''; } + my ($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'}; @@ -945,11 +1594,19 @@ sub upfile_drop_add { $genpwd=$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

'); + $r->print('

Enrolling Students

'."\n".'

'); my $count=0; my $flushc=0; my %student=(); @@ -978,9 +1635,9 @@ sub upfile_drop_add { } } if ($entries{$fields{'username'}}=~/\W/) { - $r->print('

Unacceptable username: '. + $r->print('
Unacceptable username: '. $entries{$fields{'username'}}.' for user '. - $fname.' '.$mname.' '.$lname.' '.$gen.'

'); + $fname.' '.$mname.' '.$lname.' '.$gen.''); } else { # determine section number my $sec=''; @@ -990,6 +1647,8 @@ sub upfile_drop_add { $sec=$entries{$fields{'sec'}}; } } + # remove non alphanumeric values from section + $sec =~ s/\W//g; # determine student id number my $id=''; if (defined($fields{'id'})) { @@ -998,6 +1657,14 @@ sub upfile_drop_add { } $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) { @@ -1009,17 +1676,23 @@ sub upfile_drop_add { } } } - if ($password) { + # 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); + $startdate,$ENV{'form.forceid'},$desiredhost, + $email); if ($reply ne 'ok') { - $r->print('

'. - 'Error enrolling '.$username.': '. - $reply.'

'); + $reply =~ s/^error://; + $r->print('
'.$username.':'. + ' Unable to enroll: '.$reply); } else { $count++; $flushc++; $student{$username}=1; @@ -1030,38 +1703,36 @@ sub upfile_drop_add { } } } else { - $r->print("

No password for $username

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

Processed Students: '.$count); + $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 ($error,%currentlist)=&get_current_classlist - ($ENV{'course.'.$cid.'.domain'}, - $ENV{'course.'.$cid.'.num'}); - if (defined($error)) { - $r->print('
ERROR:$error
'); - } - if (defined(%currentlist)) { - # Drop the students + 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($currentlist{$entries{$fields{'username'}}. + delete($classlist->{$entries{$fields{'username'}}. ':'.$domain}); } } - # Print out list of dropped students - &show_drop_list($r,%currentlist); - } else { - $r->print("There are no students currently enrolled.\n"); + # Print out list of dropped students. + &show_drop_list($r,$classlist,$keylist,'nosort'); } } } # end of unless @@ -1079,20 +1750,54 @@ sub drop_student_list { } 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.' at '.$udom.'
'); + $r->print('Dropped '.$uname.' @ '.$udom.'
'); + $count++; } else { - $r->print('Error dropping '.$uname.' at '.$udom.': '.$result. + $r->print('Error dropping '.$uname.' @ '.$udom.': '.$result. '
'); } - $count++; } $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 +################################################################### +################################################################### + +=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 + +################################################################### +################################################################### sub handler { my $r=shift; if ($r->header_only) { @@ -1100,64 +1805,104 @@ sub handler { $r->send_http_header; return OK; } + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['action','state']); # Needs to be in a course - if (($ENV{'request.course.fn'}) && - (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) { + 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 - $r->content_type('text/html') if (! exists($ENV{'form.viewcsv'})); + $r->content_type('text/html'); $r->send_http_header; - $r->print(&header()) if (! exists($ENV{'form.viewcsv'})); - # 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); - } elsif ($ENV{'form.view'}) { - &menu_phase_two_view($r); - } elsif ($ENV{'form.viewcsv'}) { - &menu_phase_two_viewcsv($r); - } - } - # Phase three - if ($ENV{'form.phase'} eq 'three') { + $r->print(&header()); + } + # + # Main switch on form.action and form.state, as appropriate + if (! exists($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); } - # Phase four - if ($ENV{'form.phase'} eq 'four') { + } elsif ($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($r); } - # Phase five - if ($ENV{'form.phase'} eq 'five') { + } 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); } - # End - $r->print('

') if (! exists($ENV{'form.viewcsv'})); + } elsif ($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 { - # Not in a course, or not allowed to modify parms - $ENV{'user.error.msg'}= - "/adm/dropadd:cst:0:0:Cannot drop or add students"; - return HTTP_NOT_ACCEPTABLE; + # We should not end up here, but I guess it is possible + &Apache::lonnet::logthis("Undetermined state in londropadd.pm. ". + "form.action = ".$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__ +