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[LON-CAPA] /
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londropadd.pm
Revision
1.49:
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Fri Sep 13 15:33:39 2002 UTC (21 years, 8 months ago) by
matthew
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MAIN
CVS tags:
HEAD
Fixes bug 742. The code used to clear out the settings for certain columns
if the label for the second column was set. The offending for loop has been
removed and comments have been added to confuse and enlighten the unwary.
# The LearningOnline Network with CAPA
# Handler to drop and add students in courses
#
# $Id: londropadd.pm,v 1.49 2002/09/13 15:33:39 matthew 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/
#
# (Handler to set parameters for assessments
#
# (Handler to resolve ambiguous file locations
#
# (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::Constants qw(:common :http REDIRECT);
# ================================================================ Print header
sub header {
my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
return(<<ENDHEAD);
<html>
<head>
<title>LON-CAPA Enrollment Manager</title>
</head>
$bodytag
<form method="post" enctype="multipart/form-data"
action="/adm/dropadd" name="studentform">
ENDHEAD
}
# =========== 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 $courseid.'_st');
if ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
my (undef,$end,$start)=split(/\_/,$roles{$course});
my $now=time;
if (!($start && ($now<$start)) || !($end && ($now>$end))) {
my $reply=&Apache::lonnet::modifystudent
($udom,$unam,'','','','','','','',
$section,time,undef,undef,$desiredhost);
$result .= $reply.':';
}
}
}
}
if ($result eq '') {
$result eq 'Unable to find section for this student';
} else {
$result =~ s/(ok:)+/ok/g;
}
return $result;
}
# ============ build a domain and server selection form
sub domain_form {
my ($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;
}
# ============================================================== Menu Phase One
sub menu_phase_one {
my $r=shift;
$r->print(<<END);
<p>
<font size="+1"><a href="/adm/dropadd?phase=two&uplist=yes">Upload a course list</a></font>
</p><p>
<font size="+1"><a href="/adm/dropadd?phase=two&enroll=yes">Enroll a single student</a></font>
</p><p>
<font size="+1"><a href="/adm/dropadd?phase=two&view=yes">View Classlist</a></font>
</p><p>
<font size="+1"><a href="/adm/dropadd?phase=two&drop=yes">Drop Students</a></font>
</p>
END
}
sub phase_two_header {
my ($r,$datatoken,$distotal,$krbdefdom)=@_;
my $javascript;
if ($ENV{'form.upfile_associate'} eq 'reverse') {
$javascript=&phase_two_javascript_reverse_associate();
} else {
$javascript=&phase_two_javascript_forward_associate();
}
my $javascript_validations=&javascript_validations($krbdefdom);
$r->print(<<ENDPICK);
<h3>Uploading Class List</h3>
<hr>
<h3>Identify fields</h3>
Total number of records found in file: $distotal <hr />
Enter as many fields as you can. The system will inform you and bring you back
to this page if the data selected is insufficient to run your class.<hr />
<input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
<input type="hidden" name="associate" value="" />
<input type="hidden" name="phase" value="three" />
<input type="hidden" name="datatoken" value="$datatoken" />
<input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
<input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
<input type="hidden" name="upfile_associate"
value="$ENV{'form.upfile_associate'}" />
<hr />
<script type="text/javascript" language="Javascript">
$javascript
$javascript_validations
</script>
ENDPICK
}
sub javascript_validations {
my ($krbdefdom)=@_;
my %param = ( formname => 'studentform',
kerb_def_dom => $krbdefdom );
my $authheader = &Apache::loncommon::authform_header(%param);
return (<<ENDPICK);
function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
var foundatype=0;
var message='';
if (founduname==0) {
alert('You need to specify the username field');
return;
}
if (current.radiovalue == null || current.radiovalue == 'nochange') {
// They did not check any of the login radiobuttons.
alert('You must choose an authentication type');
return;
}
foundatype=1;
if (current.argfield == null || current.argfield == '') {
var alertmsg = '';
switch (current.value) {
case 'krb':
alertmsg = 'You need to specify the Kerberos domain';
break;
case 'loc':
case 'fsys':
alertmsg = 'You need to specify the initial password';
break;
case 'fsys':
alertmsg = '';
break;
default:
alertmsg = '';
}
if (alertmsg != '') {
alert(alertmsg);
return;
}
}
if (foundname==0) { message='No name fields specified. '; }
if (foundid==0) { message+='No ID or student number field specified. '; }
if (foundsec==0) { message+='No section or group field specified. '; }
if (vf.startdate.value=='') {
message+='No starting date set. ';
}
if (vf.enddate.value=='') {
message+='No ending date set. ';
}
if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
alert('Ending date is before starting date');
return;
}
}
if (message!='') {
message+='Continue enrollment?';
if (confirm(message)) {
pclose();
vf.submit();
}
} else {
pclose();
vf.submit();
}
}
function pclose() {
parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
"height=350,width=350,scrollbars=no,menubar=no");
parmwin.close();
}
function pjump(type,dis,value,marker,ret,call) {
parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
+"&value="+escape(value)+"&marker="+escape(marker)
+"&return="+escape(ret)
+"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
"height=350,width=350,scrollbars=no,menubar=no");
}
function dateset() {
if (document.studentform.pres_marker.value=='end') {
document.studentform.enddate.value=
document.studentform.pres_value.value;
}
if (document.studentform.pres_marker.value=='start') {
document.studentform.startdate.value=
document.studentform.pres_value.value;
}
pclose();
}
$authheader
ENDPICK
}
sub phase_two_javascript_forward_associate {
return(<<ENDPICK);
function verify(vf) {
var founduname=0;
var foundpwd=0;
var foundname=0;
var foundid=0;
var foundsec=0;
var tw;
for (i=0;i<=vf.nfields.value;i++) {
tw=eval('vf.f'+i+'.selectedIndex');
if (tw==1) { founduname=1; }
if ((tw>=2) && (tw<=6)) { foundname=1; }
if (tw==7) { foundid=1; }
if (tw==8) { foundsec=1; }
if (tw==9) { foundpwd=1; }
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
}
//
// 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)
//
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 phase_two_javascript_reverse_associate {
return(<<ENDPICK);
function verify(vf) {
var founduname=0;
var foundpwd=0;
var foundname=0;
var foundid=0;
var foundsec=0;
var tw;
for (i=0;i<=vf.nfields.value;i++) {
tw=eval('vf.f'+i+'.selectedIndex');
if (i==0 && tw!=0) { founduname=1; }
if (((i>=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 phase_two_end {
my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
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);
my $domform = &domain_form($defdom);
$r->print(<<ENDPICK);
</table>
<input type=hidden name=nfields value=$i>
<input type=hidden name=keyfields value="$keyfields">
<h3>Login Type</h3>
<p>Note: this will not take effect if the user already exists</p>
<p>
$krbform
</p>
<p>
$intform
</p>
<p>
$locform
</p>
<h3>LON-CAPA Domain for Students</h3>
LON-CAPA domain: $domform <p>
<h3>Starting and Ending Dates</h3>
<input type="hidden" value='' name="pres_value" >
<input type="hidden" value='' name="pres_type" >
<input type="hidden" value='' name="pres_marker" >
<input type="hidden" value='$today' name="startdate" >
<input type="hidden" value='$halfyear' name="enddate" >
<a
href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
>Set Starting Date</a><p>
<a
href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
>Set Ending Date</a><p>
<h3>Full Update</h3>
<input type=checkbox name=fullup value=yes> Full update
(also print list of users not enrolled anymore)<p>
<h3>ID/Student Number</h3>
<input type=checkbox name=forceid value=yes>
Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
(only do if you know what you are doing)<p>
<input type="button" onClick="javascript:verify(this.form)" value="Update Courselist" /><br />
Note: for large courses, this operation might be time consuming.
ENDPICK
}
# ======================================================= Menu Phase Two Upload
sub menu_phase_two_upload {
my $r=shift;
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();
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 $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']);
if ($ENV{'form.upfile_associate'} eq 'reverse') {
&Apache::loncommon::csv_print_samples($r,\@records);
$i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
foreach (@d) { $keyfields.=$_->[0].','; }
chop($keyfields);
} else {
unshift(@d,['none','']);
$i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
my %sone=&Apache::loncommon::record_sep($records[0]);
$keyfields=join(',',sort(keys(%sone)));
}
}
&phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear);
}
# ======================================================= Enroll single student
sub enroll_single_student {
my $r=shift;
$r->print('<h3>Enrolling Student</h3>');
$r->print('<p>Enrolling '.$ENV{'form.cuname'}." in domain ".
$ENV{'form.lcdomain'}.'</p>');
if (($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('<font color="#ff0000">Error:</font>'.
'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='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')) {
&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));
} else {
$r->print('<p><font color="#ff0000">ERROR</font> '.
'Invalid login mode or password. '.
'Unable to enroll '.$ENV{'form.cuname'}.'.</p>');
}
} else {
$r->print('Invalid username or domain');
}
}
# ======================================================= Menu Phase Two Enroll
sub menu_phase_two_enroll {
my $r=shift;
$r->print("<h3>Enroll One Student</h3>");
my ($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(<<ENDSENROLL);
<script type="text/javascript" language="Javascript">
function verify(vf) {
var founduname=0;
var foundpwd=0;
var foundname=0;
var foundid=0;
var foundsec=0;
var tw;
if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
founduname=1;
}
if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
foundname=1;
}
if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
foundsec=1;
}
if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
foundid=1;
}
if (founduname==0) {
alert('You need to specify at least the username and domain fields');
return;
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
}
$javascript_validations
function clearpwd(vf) {
//nothing else needs clearing
}
</script>
<h3>Personal Data</h3>
First Name: <input type="text" name="cfirst" size="15"><br>
Middle Name: <input type="text" name="cmiddle" size="15"><br>
Last Name: <input type="text" name="clast" size="15"><br>
Generation: <input type="text" name="cgen" size="5">
<p>ID/Student Number: <input type="text" name="cstid" size="10"></p>
<p>Group/Section: <input type=text name=csec size=5></p>
<h3>Login Data</h3>
<p>Username: <input type="text" name="cuname" size="15"></p>
<p>Domain: $domform</p>
<p>Note: login settings below will not take effect if the user already exists
</p><p>
$krbform
</p><p>
$intform
</p><p>
$locform
</p><p>
<h3>Starting and Ending Dates</h3>
<input type="hidden" value='' name="pres_value">
<input type="hidden" value='' name="pres_type">
<input type="hidden" value='' name="pres_marker">
<input type="hidden" value='$today' name=startdate>
<input type="hidden" value='$halfyear' name=enddate>
</p><p>
<a
href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
>Set Starting Date</a>
</p><p>
<a
href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
>Set Ending Date</a>
</p><p>
<h3>ID/Student Number</h3>
<input type="checkbox" name="forceid" value="yes">
Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
(only do if you know what you are doing)<p>
<input type="button" onClick="verify(this.form)" value="Enroll as student"><br>
<input type="hidden" name="phase" value="five">
</p>
ENDSENROLL
}
# =================================================== get the current classlist
sub get_current_classlist {
my ($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);
}
}
# ========================================================= Menu Phase Two Drop
sub menu_phase_two_drop {
my $r=shift;
$r->print("<h3>Drop Students</h3>");
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 {
$r->print("<pre>ERROR:$error</pre>");
}
} elsif (!defined(%currentlist)) {
$r->print("There are no students currently enrolled.\n");
} else {
# Print out the available choices
&show_drop_list($r,%currentlist);
}
}
# ============================================== view classlist
sub menu_phase_two_view {
my $r=shift;
$r->print(<<END);
<font size="+1">Current Classlist</font>
<font size="+1"><a href="/adm/dropadd?phase=two&viewcsv=yes">CSV format</a></font><br />
END
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 {
$r->print("<pre>ERROR:$error</pre>");
}
} elsif (!defined(%currentlist)) {
$r->print("There are no students currently enrolled.\n");
} else {
# Print out the available choices
&show_class_list($r,'view',%currentlist);
}
}
# ============================================== view classlist
sub menu_phase_two_viewcsv {
my $r=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 {
$r->print("<pre>ERROR:$error</pre>");
}
} elsif (!defined(%currentlist)) {
$r->print("There are no students currently enrolled.\n");
} else {
&show_class_list($r,'csv',%currentlist);
}
}
# =================================================== Show student list to drop
sub show_class_list {
my ($r,$mode,%currentlist)=@_;
my $cid=$ENV{'request.course.id'};
# Print out header
if ($mode eq 'view') {
$r->print(<<END);
<p>
<table border=2>
<tr><th>username</th><th>domain</th><th>ID</th>
<th>student name</th><th>generation</th><th>section</th></tr>
END
} elsif ($mode eq 'csv') {
$r->print(<<END);
username,domain,ID,last name,first name,middle name,generation,section
END
}
foreach (sort keys %currentlist) {
my ($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) {
$r->print( ($mode eq 'view' ?
'<tr><td colspan="6"><font color="red">' :'').
'Internal error: unable to get environment '.
'for '.$sname.' in domain '.$sdom.
( $mode eq 'view' ?'</font></td></tr>' :''));
} else {
if ($mode eq 'view') {
$r->print(<<"END");
<tr>
<td>$sname</td>
<td>$sdom</td>
<td>$reply{$sname}</td>
<td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
<td>$info{'generation'}</td>
<td>$ssec</td>
</tr>
END
} elsif ($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;
}
}
}
$r->print('</table><br>') if ($mode eq 'view');
}
# =================================================== Show student list to drop
sub show_drop_list {
my ($r,%currentlist)=@_;
my $cid=$ENV{'request.course.id'};
$r->print(<<'END');
<script>
function checkAll(field)
{
for (i = 0; i < field.length; i++)
field[i].checked = true ;
}
function uncheckAll(field)
{
for (i = 0; i < field.length; i++)
field[i].checked = false ;
}
</script>
<p>
<input type="hidden" name="phase" value="four">
<table border=2>
<tr><th> </th><th>username</th><th>domain</th>
<th>ID</th><th>student name</th><th>generation</th>
<th>section</th></tr>
END
foreach (sort keys %currentlist) {
my ($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) {
$r->print('<tr><td colspan="7"><font color="red">'.
'Internal error: unable to get environment '.
'for '.$sname.' in domain '.$sdom.'</font></td></tr>');
} else {
$r->print(<<"END");
<tr>
<td><input type="checkbox" name="droplist" value="$_"></td>
<td>$sname</td>
<td>$sdom</td>
<td>$reply{$sname}</td>
<td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
<td>$info{'generation'}</td>
<td>$ssec</td>
</tr>
END
}
}
$r->print('</table><br>');
$r->print(<<"END");
</p><p>
<input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)">
<input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)">
<p><input type=submit value="Drop Students"></p>
END
}
#
# 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(<<ENDUPFORM);
<input type=hidden name=phase value=two>
<hr>
<h3>Upload a courselist</h3>
$upfile_select
<p><input type=submit name="fileupload" value="Upload Courselist">
<br />
$create_classlist_help <br />
$create_csv_help
</body></html>
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=''; }
# 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('<font color="#ff0000">Error:</font>'.
'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'};
}
}
unless (($domain=~/\W/) || ($amode eq '')) {
#######################################
## Enroll Students ##
#######################################
$r->print('<h3>Enrolling Students</h3>');
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('<p><b>Unacceptable username: '.
$entries{$fields{'username'}}.' for user '.
$fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
} else {
# determine section number
my $sec='';
my $username=$entries{$fields{'username'}};
if (defined($fields{'sec'})) {
if (defined($entries{$fields{'sec'}})) {
$sec=$entries{$fields{'sec'}};
}
}
# 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 student password
my $password='';
if ($genpwd) {
$password=$genpwd;
} else {
if (defined($fields{'ipwd'})) {
if ($entries{$fields{'ipwd'}}) {
$password=$entries{$fields{'ipwd'}};
}
}
}
if ($password) {
&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'},$desiredhost);
if ($reply ne 'ok') {
$r->print('<p><b>'.
'Error enrolling '.$username.': '.
$reply.'</b></p>');
} else {
$count++; $flushc++;
$student{$username}=1;
$r->print('. ');
if ($flushc>15) {
$r->rflush;
$flushc=0;
}
}
} else {
$r->print("<p><b>No password for $username</b><p>");
}
}
}
} # end of foreach (@studentdata)
$r->print('<p>Processed Students: '.$count);
#####################################
# Drop students #
#####################################
if ($ENV{'form.fullup'} eq 'yes') {
$r->print('<h3>Dropping Students</h3>');
# Get current classlist
my ($error,%currentlist)=&get_current_classlist
($ENV{'course.'.$cid.'.domain'},
$ENV{'course.'.$cid.'.num'});
if (defined($error)) {
$r->print('<pre>ERROR:$error</pre>');
}
if (defined(%currentlist)) {
# Drop the students
foreach (@studentdata) {
my %entries=&Apache::loncommon::record_sep($_);
unless (($entries{$fields{'username'}} eq '') ||
(!defined($entries{$fields{'username'}}))) {
delete($currentlist{$entries{$fields{'username'}}.
':'.$domain});
}
}
# Print out list of dropped students
&show_drop_list($r,%currentlist);
} else {
$r->print("There are no students currently enrolled.\n");
}
}
} # end of unless
}
# ================================================================== Phase four
sub drop_student_list {
my $r=shift;
my $count=0;
my @droplist;
if (ref($ENV{'form.droplist'})) {
@droplist = @{$ENV{'form.droplist'}};
} else {
@droplist = ($ENV{'form.droplist'});
}
foreach (@droplist) {
my ($uname,$udom)=split(/\:/,$_);
my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
if ($result eq 'ok' || $result eq 'ok:') {
$r->print('Dropped '.$uname.' at '.$udom.'<br>');
} else {
$r->print('Error dropping '.$uname.' at '.$udom.': '.$result.
'<br />');
}
$count++;
}
$r->print('<p><b>Dropped '.$count.' student(s).</b>');
$r->print('<p>Re-enrollment will re-activate data.');
}
# ================================================================ Main Handler
sub handler {
my $r=shift;
if ($r->header_only) {
$r->content_type('text/html');
$r->send_http_header;
return OK;
}
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['enroll','drop','view','phase',
'viewcsv','uplist']);
# Needs to be in a course
if (($ENV{'request.course.fn'}) &&
(&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
# Start page
$r->content_type('text/html') if (! exists($ENV{'form.viewcsv'}));
$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 ($ENV{'form.uplist'}) {
&print_first_courselist_upload_form($r);
} elsif ($ENV{'form.fileupload'}) {
&menu_phase_two_upload($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 ($ENV{'form.phase'} eq 'three') {
if ($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
$r->print('</form></body></html>') if (! exists($ENV{'form.viewcsv'}));
} 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;
}
1;
__END__
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