# The LearningOnline Network with CAPA
# Handler to drop and add students in courses
#
# $Id: londropadd.pm,v 1.98 2004/01/15 03:18:19 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
#
###############################################################
##############################################################
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;
###############################################################
###############################################################
sub header {
my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager').
&Apache::loncommon::help_open_faq(9).
&Apache::loncommon::help_open_bug('Instructor Interface');
my $title = &mt('LON-CAPA Enrollment Manager');
return(<$title
$bodytag
$Text{'populate'}
END
}
###############################################################
###############################################################
sub hidden_input {
my ($name,$value) = @_;
return ''."\n";
}
sub print_upload_manager_header {
my ($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=&upload_manager_javascript_reverse_associate();
} else {
$javascript=&upload_manager_javascript_forward_associate();
}
my $javascript_validations=&javascript_validations('auth',$krbdefdom);
my $checked=(($ENV{'form.noFirstLine'})?' checked="1"':'');
$r->print('
'.&mt('Uploading Class List')."
\n".
"\n".
'
'.&mt('Identify fields')."
\n");
$r->print("
\n".
&mt('Total number of records found in file: [_1].',$distotal).
"\n".
"
\n");
$r->print(&mt('Enter as many fields as you can. The system will inform you and bring you back to this page if the data selected is insufficient to enroll students in your class.')."\n");
$r->print(&hidden_input('action','upload').
&hidden_input('state','got_file').
&hidden_input('associate','').
&hidden_input('datatoken',$datatoken).
&hidden_input('fileupload',$ENV{'form.fileupload'}).
&hidden_input('upfiletype',$ENV{'form.upfiletype'}).
&hidden_input('upfile_associate',$ENV{'form.upfile_associate'}));
$r->print('');
$r->print(''.
&mt('Ignore First Line'));
$r->print("\n".
'');
}
###############################################################
###############################################################
sub javascript_validations {
my ($mode,$krbdefdom,$curr_authtype,$curr_authfield)=@_;
my $authheader;
if ($mode eq 'auth') {
my %param = ( formname => 'studentform',
kerb_def_dom => $krbdefdom );
$authheader = &Apache::loncommon::authform_header(%param);
} elsif ($mode eq 'createcourse') {
my %param = ( formname => 'ccrs',
kerb_def_dom => $krbdefdom );
$authheader = &Apache::loncommon::authform_header(%param);
} elsif ($mode eq 'modifycourse') {
my %param = ( formname => 'cmod',
kerb_def_dom => $krbdefdom,
mode => 'modifycourse',
curr_authtype => $curr_authtype,
curr_autharg => $curr_authfield );
$authheader = &Apache::loncommon::authform_header(%param);
}
my %alert = &Apache::lonlocal::texthash
(username => 'You need to specify the username field.',
authen => 'You must choose an authentication type.',
krb => 'You need to specify the Kerberos domain.',
ipass => 'You need to specify the initial password.',
name => 'The optional name field was not specified.',
snum => 'The optional student number field was not specified.',
section => 'The optional section or group field was not specified.',
email => 'The optional email address field was not specified.',
continue => 'Continue enrollment?',
);
# my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
my $function_name =(<=2) && (tw<=6)) { foundname=1; }
if (tw==7) { foundid=1; }
if (tw==8) { foundsec=1; }
if (tw==9) { foundpwd=1; }
if (tw==10) { foundemail=1; }
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
}
//
// vf = this.form
// tf = column number
//
// values of nw
//
// 0 = none
// 1 = username
// 2 = names (lastname, firstnames)
// 3 = fname (firstname)
// 4 = mname (middlename)
// 5 = lname (lastname)
// 6 = gen (generation)
// 7 = id
// 8 = section
// 9 = ipwd (password)
// 10 = email address
function flip(vf,tf) {
var nw=eval('vf.f'+tf+'.selectedIndex');
var i;
// make sure no other columns are labeled the same as this one
for (i=0;i<=vf.nfields.value;i++) {
if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
// If we set this to 'lastname, firstnames', clear out all the ones
// set to 'fname','mname','lname','gen' (3,4,5,6) currently.
if (nw==2) {
for (i=0;i<=vf.nfields.value;i++) {
if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
(eval('vf.f'+i+'.selectedIndex')<=6)) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
}
// 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) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
}
// 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);
vf.intarg.value='';
vf.krbarg.value='';
vf.locarg.value='';
}
}
function clearpwd(vf) {
var i;
for (i=0;i<=vf.nfields.value;i++) {
if (eval('vf.f'+i+'.selectedIndex')==9) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
}
ENDPICK
}
###############################################################
###############################################################
sub upload_manager_javascript_reverse_associate {
return(<=1) && (i<=5)) && tw!=0 ) { foundname=1; }
if (i==6 && tw!=0) { foundid=1; }
if (i==7 && tw!=0) { foundsec=1; }
if (i==8 && tw!=0) { foundpwd=1; }
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
}
function flip(vf,tf) {
var nw=eval('vf.f'+tf+'.selectedIndex');
var i;
// picked the all one one name field, reset the other name ones to blank
if (tf==1 && nw!=0) {
for (i=2;i<=5;i++) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
//picked one of the piecewise name fields, reset the all in
//one field to blank
if ((tf>=2) && (tf<=5) && (nw!=0)) {
eval('vf.f1.selectedIndex=0;')
}
// intial password specified, pick internal authentication
if (tf==8 && nw!=0) {
changed_radio('int',document.studentform);
set_auth_radio_buttons('int',document.studentform);
vf.krbarg.value='';
vf.intarg.value='';
vf.locarg.value='';
}
}
function clearpwd(vf) {
var i;
if (eval('vf.f8.selectedIndex')!=0) {
eval('vf.f8.selectedIndex=0;')
}
}
ENDPICK
}
###############################################################
###############################################################
sub print_upload_manager_footer {
my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
my ($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();
my $Str = "\n";
$Str .= &hidden_input('nfields',$i);
$Str .= &hidden_input('keyfields',$keyfields);
$Str .= '
'.&mt('Login Type')."
\n";
$Str .= "
\n".
&mt('Note: this will not take effect if the user already exists').
"
\n";
$Str .= $krbform."\n
\n".
$intform."\n
\n".
$locform."\n
\n";
$Str .= '
'.&mt('LON-CAPA Domain for Students')."
\n";
$Str .= "
\n".&mt('LON-CAPA domain: [_1]',$domform)."\n
\n";
$Str .= "
".&mt('Starting and Ending Dates')."
\n";
$Str .= "
\n".$date_table."
\n";
$Str .= "
".&mt('Full Update')."
\n";
$Str .= ''.
' '.&mt('Full update (also print list of users not enrolled anymore)').
"\n";
$Str .= "
".&mt('Student Number')."
\n";
$Str .= "
\n".'';
$Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
'of Conflicting IDs (only do if you know what you are doing)').
"\n
\n";
$Str .= ''." \n";
$Str .= &mt('Note: for large courses, this operation may be time '.
'consuming');
$r->print($Str);
return;
}
###############################################################
###############################################################
sub print_upload_manager_form {
my $r=shift;
my $firstLine;
my $datatoken;
if (!$ENV{'form.datatoken'}) {
$datatoken=&Apache::loncommon::upfile_store($r);
} else {
$datatoken=$ENV{'form.datatoken'};
&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;
my $today=time;
my $halfyear=$today+15552000;
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 @field=(['username',&mt('Username')],
['names',&mt('Last Name, First Names')],
['fname',&mt('First Name')],
['mname',&mt('Middle Names/Initials')],
['lname',&mt('Last Name')],
['gen',&mt('Generation')],
['id',&mt('ID/Student Number')],
['sec',&mt('Group/Section')],
['ipwd',&mt('Initial Password')],
['email',&mt('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,
\@field);
foreach (@field) {
$keyfields.=$_->[0].',';
}
chop($keyfields);
} else {
unshift(@field,['none','']);
$i=&Apache::loncommon::csv_samples_select_table($r,\@records,
\@field);
my %sone=&Apache::loncommon::record_sep($records[0]);
$keyfields=join(',',sort(keys(%sone)));
}
}
&print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
}
###############################################################
###############################################################
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));
}
$r->print('
');
if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
($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(''.&mt('Error').':'.
&mt('Invalid home server specified'));
return;
}
}
$r->print(" ".&mt('with server')." $desiredhost :") if (defined($desiredhost));
# End of home server selection logic
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';
$genpwd=$ENV{'form.intarg'};
} elsif ($ENV{'form.login'} eq 'loc') {
$amode='localauth';
$genpwd=$ENV{'form.locarg'};
if (!$genpwd) { $genpwd=" "; }
}
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);
$r->print("
".&mt('If active, the new role will be available when the student next logs in to LON-CAPA.')."
'.&mt('ERROR').' ');
if ($amode =~ /^krb/) {
$r->print(&mt('Missing Kerberos domain information.').' ');
} else {
$r->print(&mt('Invalid login mode or password.').' ');
}
$r->print(''.&mt('Unable to enroll').' '.$ENV{'form.cuname'}.'.
');
}
} else {
$r->print(&mt('Invalid username or domain'));
}
}
sub setup_date_selectors {
my ($starttime,$endtime,$mode) = @_;
if (! defined($starttime)) {
$starttime = time;
unless ($mode eq 'createcourse') {
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)) {
$endtime = time+(6*30*24*60*60); # 6 months from now, approx
unless ($mode eq 'createcourse') {
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',
$endtime);
if ($mode eq 'createcourse') {
$startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
'startdate',
$starttime);
$enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
'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,$endtime,$mode) = @_;
my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
my $dateDefault = ''.
' '.
&mt('make these dates the default for future enrollment');
if ($mode eq 'createcourse') {
$dateDefault = ' ';
}
my $perpetual = ' '.&mt('no ending date').'';
my $result = '';
$result .= "
\n";
$result .= '
'.&mt('Starting Date').'
'.
'
'.$startform.'
'.
'
'.$dateDefault.'
'."
\n";
$result .= '
'.&mt('Ending Date').'
'.
'
'.$endform.'
'.
'
'.$perpetual.'
'."
\n";
$result .= "
\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 {
$result .= &mt('Unable to set default dates for course').":".$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);
my %lt=&Apache::lonlocal::texthash(
'eos' => "Enroll One Student",
'usr' => "Username",
'dom' => "Domain",
'been' => "Begin Enrollment",
);
$r->print(<
$lt{'eos'}
$lt{'usr'}:
$lt{'dom'}:
$domform
END
return;
}
sub print_enroll_single_student_form {
my $r=shift;
$r->print("
".&mt('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);
$javascript_validations=&javascript_validations('auth',$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";
#
#
my %lt=&Apache::lonlocal::texthash(
'udf' => "User Data for",
'fn' => "First Name",
'mn' => "Middle Name",
'ln' => "Last Name",
'gen' => "Generation",
'hs' => "Home Server",
'pswd' => "Password",
'psam' => "Please select an authentication mechanism",
);
$user_data_html = <$lt{'udf'} $username\@$domain
$lt{'fn'}:
$lt{'mn'}:
$lt{'ln'}:
$lt{'gen'}:
$lt{'hs'}:
$homeserver_form
$lt{'pswd'}
$lt{'psam'}
$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('noauth');
my %lt=&Apache::lonlocal::texthash(
'udf' => "User Data for",
'fn' => "First Name",
'mn' => "Middle Name",
'ln' => "Last Name",
'gen' => "Generation",
);
$user_data_html = <$lt{'udf'} $username\@$domain
$lt{'fn'}:
$lt{'mn'}:
$lt{'ln'}:
$lt{'gen'}:
END
}
my $date_table = &date_setting_table();
# Print it all out
my %lt=&Apache::lonlocal::texthash(
'cd' => "Course Data",
'gs' => "Group/Section",
'idsn' => "ID/Student Number",
'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
'eas' => "Enroll as student",
);
$r->print(<
$user_data_html
$lt{'cd'}
$lt{'gs'}:
$date_table
$lt{'idsn'}
$lt{'idsn'}:
$lt{'disn'}
END
return;
}
# ========================================================= Menu Phase Two Drop
sub print_drop_menu {
my $r=shift;
$r->print("
".&mt('Drop Students')."
");
my $cid=$ENV{'request.course.id'};
my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
if (! defined($classlist)) {
$r->print(&mt('There are no students currently enrolled.')."\n");
return;
}
# Print out the available choices
&show_drop_list($r,$classlist,$keylist);
return;
}
# ============================================== 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');
my $CCL=&mt('Current Class List');
$r->print(<
$CCL
END
if ($ENV{'form.action'} ne 'modifystudent') {
my %lt=&Apache::lonlocal::texthash(
'ef' => "Excel format",
'ss' => "Student Status",
);
$r->print(<CSV format$lt{'ef'}
$lt{'ss'}:
END
}
$r->print($status_select."
\n");
my $cid=$ENV{'request.course.id'};
my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
if (! defined($classlist)) {
$r->print(&mt('There are no students currently enrolled.')."\n");
} else {
# Print out the available choices
if ($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)) {
$r->print(&mt('There are no students currently enrolled.')."\n");
} else {
&show_class_list($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') {
$r->print(&mt('Select a user name to view the users personal page.'));
} elsif ($linkto eq 'modify') {
$r->print(&mt('Select a user name to modify the students information'));
}
my %lt=&Apache::lonlocal::texthash(
'usrn' => "username",
'dom' => "domain",
'sn' => "student name",
'sec' => "section",
);
$r->print(<
'."\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) {
$r->print(''.&mt('Error').''.
'
'.
&mt('Unable to retrieve environment data for').' '.$sname.
&mt('in domain').' '.$sdom.'
'.
&mt('Please contact your LON-CAPA administrator regarding this situation.').'