#
# $Id: lonwhatsnew.pm,v 1.23 2005/07/10 02:31:30 albertel 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::lonwhatsnew;
use strict;
use lib qw(/home/httpd/lib/perl);
use Apache::lonnet;
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::lonlocal;
use Apache::loncoursedata();
use Apache::lonnavmaps();
use Apache::lonuserstate;
use Apache::Constants qw(:common :http);
use Time::Local;
#----------------------------
# handler
#
#----------------------------
sub handler {
my $r = shift;
if ($r->header_only) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK;
}
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['command']);
my $command;
if ($env{'form.action'} eq 'reset') {
$command = 'reset';
} elsif ($env{'form.action'} eq 'update') {
$command = 'update';
} else {
$command = $env{'form.command'};
}
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
$r->print(&display_header());
if (! (($env{'request.course.fn'}) && (&Apache::lonnet::allowed('vsa',$env{'request.course.id'})))) {
# Not in a course, or not allowed to modify parms
$env{'user.error.msg'}="/adm/whatsnew:vsa:0:0:Cannot display student activity";
return HTTP_NOT_ACCEPTABLE;
}
&Apache::lonhtmlcommon::clear_breadcrumbs();
if ($command eq 'chgthreshold') {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/whatsnew?command=threshold',
text=>"Change thresholds"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Course Action Items','Course_Action_Items_Thresholds'));
} else {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/whatsnew',
text=>"Display Action Items"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Course Action Items','Course_Action_Items_Display'));
}
&display_main_box($r,$command);
return OK;
}
#------------------------------
# display_main_box
#
# Display all the elements within the main box
#------------------------------
sub display_main_box {
my ($r,$command) = @_;
my $domain=&Apache::loncommon::determinedomain();
my $tabbg=&Apache::loncommon::designparm('coordinator.tabbg',$domain);
$r->print('<table width="100%" border="0" cellpadding="5" cellspacing="0"><tr><td width="100%">');
my %threshold_titles = (
av_attempts => 'Average number of attempts',
degdiff => 'Degree of difficulty',
numstudents => 'Total number of students with submissions',
);
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
if ($command eq 'chgthreshold') {
&display_config_box($r,$command,$tabbg,\%threshold_titles,$cdom,$crs);
} else {
&display_actions_box($r,$command,\%threshold_titles,$cdom,$crs);
}
$r->print(<<END_OF_BLOCK);
</td>
</tr>
</table><br />
</body>
</html>
END_OF_BLOCK
}
#-------------------------------
# display_header
#
# Display the header information and set
# up the HTML
#-------------------------------
sub display_header{
my $html=&Apache::lonxml::xmlbegin();
my $bodytag=&Apache::loncommon::bodytag('Course Action Items');
return(<<ENDHEAD);
$html
<head>
<title>Course Action Items</title>
</head>
$bodytag
ENDHEAD
}
#-------------------------------
# display_actions_box
#
# Display the action items
#
#-------------------------------
sub display_actions_box() {
my ($r,$command,$threshold_titles,$cdom,$crs) = @_;
my $rowColor1 = "#ffffff";
my $rowColor2 = "#eeeeee";
my $rowColor;
my %unread = ();
my %ungraded = ();
my %bombed = ();
my %triggered = ();
my @newmsgs = ();
my @critmsgs = ();
my @newdiscussions = ();
my @tograde = ();
my @bombs = ();
my @warnings = ();
my %res_title = ();
my $domain=&Apache::loncommon::determinedomain();
my $function;
if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
$function='coordinator';
}
if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
$function='admin';
}
my %threshold = (
av_attempts => 2,
degdiff => 0.5,
numstudents => 2,
);
my $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
my $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
unless ($env{'request.course.id'}) {
$r->print('<br /><b><center>You are accessing an invalid course.</center></b><br /><br />');
return;
}
my ($furl,$ferr)=
&Apache::lonuserstate::readmap($cdom.'/'.$crs);
$r->print('<font size="+1"><a href="'.$furl.'">Go to first resource</a></font><a href="/adm/preferences?action=changecourseinit"></font><br />Change your preferences</a> to suppress display of this screen when accessing courses as Course Coordinator in the future.<br /><hr />');
my $result;
if ($command eq 'reset') {
$result = &process_reset($cdom,$crs);
} elsif ($command eq 'update') {
$result = &process_update($cdom,$crs,$threshold_titles);
}
if ($result) {
$r->print($result.'<hr width="100%" />');
}
&get_curr_thresholds(\%threshold,$cdom,$crs);
&getitems(\%unread,\%ungraded,\%bombed,\%triggered,\@newdiscussions,\@tograde,\@bombs,\@warnings,$rowColor1,$rowColor2,\%threshold,$cdom,$crs,%res_title);
my ($msgcount,$critmsgcount) = &getmail(\@newmsgs,\@critmsgs);
$r->print('<br /><table border="0" width="100%" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">');
## UNGRADED ITEMS ##
$r->print(<<END);
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr><td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="$tabbg"><b>Problems requiring handgrading</b></td></tr>
<tr>
<td bgcolor="#ffffff">
<table cellpadding="2" cellspacing="0" border="0" width="100%">
END
if (@tograde > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>Problem Name</small></b></td><td align="right"><b><small>Number ungraded</small></b></td></tr>');
my $rowNum = 0;
foreach my $res (@tograde) {
if ($rowNum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
my $linkurl=&Apache::lonnet::clutter($url);
$linkurl .= '?symb='.&Apache::lonnet::escape($res);
$r->print('<tr bgcolor="'.$rowColor.'"><td><a href="'.$linkurl.'"><small>'.$ungraded{$res}{title}.'</small></a></td><td align="right"><small>'.$ungraded{$res}{count}.'</small></td></tr>');
$rowNum ++;
}
} else {
$r->print('<tr><td bgcolor="#ffffff"><br><center><i><b><small> No problems require handgrading </small><br><br></b></i></td></tr>');
}
$r->print('</table></td></tr></table></td></tr></table><br />');
## BOMBS ##
$r->print(<<"END");
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr>
<td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="$tabbg"><b>Problems with errors</b></td>
</tr>
<tr>
<td bgcolor="#ffffff">
<table width="100%" cellspacing="0" cellpadding="0" border="0">
END
my $bombnum = 0;
if (@bombs > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>Resource</small></b></td><td align="right"><b><small>Number of errors</small></b></td></tr>');
@bombs = sort { &cmp_title($a,$b,\%res_title) } @bombs;
foreach my $bomb (@bombs) {
if ($bombnum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$r->print('<tr bgcolor="'.$rowColor.'"><td><small>'.$bombed{$bomb}{errorlink}.'</small></td><td align="right"><small>'.$bombed{$bomb}{errorcount}.'</small></td></tr>');
$bombnum ++;
}
} else {
$r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>No problems with errors</small></i></b></center><br /></td></tr>');
}
$r->print('</table></td></tr></table></td></tr></table><br />');
# DEGDIFF AND AV. TRIES TRIGGERS
$r->print(<<"END");
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr>
<td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="$tabbg"><b>Problems with av. attempts ≥ $threshold{'av_attempts'} or deg. difficulty ≥ $threshold{'degdiff'}<br /> and total number of students with submissions ≥ $threshold{'numstudents'}</b></td>
</tr>
<tr>
<td bgcolor="$tabbg" align="right"><a href="/adm/whatsnew?command=chgthreshold"><b><small>Change thresholds?</small></b></a></td>
</tr>
<tr>
<td bgcolor="#ffffff">
<table width="100%" cellspacing="2" cellpadding="2" border="0">
END
my $warningnum = 0;
if (@warnings > 0) {
@warnings = sort { &cmp_title($a,$b,\%res_title) } @warnings;
$r->print('<form name="reset_tracking" method="post">'.
' <input type="hidden" name="action" value="reset" />'."\n");
$r->print('<tr bgcolor="#cccccc"><td><b><small>Resource</small></b></td><td align="right"><b><small>Part</small></b></td><td align="right"><b><small>Num. students</small></b></td><td align="right"><b><small>Av. Attempts</small></b></td><td align="right"><b><small>Deg. Diff</small></b></td><td align="right"><b><small>Last Reset</small></b></td><td align="right"><b><small>Reset Count?</small></b></td></tr>');
foreach my $res (@warnings) {
if ($warningnum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
my $linkurl=&Apache::lonnet::clutter($url);
my $rowspan;
if ($triggered{$res}{numparts} > 1) {
$rowspan = 'rowspan="'.$triggered{$res}{numparts}.'"';
}
$linkurl .= '?symb='.&Apache::lonnet::escape($res);
$r->print('<tr bgcolor="'.$rowColor.'"><td '.$rowspan.'><a href="'.$linkurl.'"><small>'.$triggered{$res}{title}.'</small></a></td>'.$triggered{$res}{text});
$warningnum ++;
}
$r->print('<tr bgcolor="#cccccc"><td colspan="7" align="right"><br /><b><small><input type="submit" name="counters" value="Reset counters to 0" /></form>');
} else {
$r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>No problems satisfy threshold criteria.</small></i></b></center><br /></td></tr>');
}
$r->print('</table></td></tr></table></td></tr></table><br />');
$r->print('</td><td width="5%"> </td><td align="left" valign="top" width-"50%">');
## UNREAD COURSE DISCUSSION POSTS ##
$r->print(<<"END");
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr><td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="$tabbg"><b>Unread course discussion posts</b></td>
</tr>
<tr>
<td bgcolor="#ffffff">
<table cellpadding="2" cellspacing="0" border="0" width="100%">
END
if (@newdiscussions > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>Location</small></b></td><td><b><small>Type</small></b><td align="right"><b><small>Number of new posts</small></b></td></tr>');
@newdiscussions = sort { &cmp_title($a,$b,\%res_title) } @newdiscussions;
my $rowNum = 0;
foreach my $ressymb (@newdiscussions) {
my $forum_title = $unread{$ressymb}{'title'};
my $type = 'Resource';
my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
if ($feedurl =~ /bulletinboard/) {
$type = 'Bulletin Board';
}
my $unreadnum = keys(%{$unread{$ressymb}});
$unreadnum = $unreadnum - 2;
if ($unreadnum > 0) {
if ($rowNum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$r->print('<tr bgcolor="'.$rowColor.'"><td><small><a href="'.$feedurl.'?symb='.$unread{$ressymb}{symb}.'">'.$forum_title.'</a> </td><td><small>'.$type.'</small></td><td align="right">'.$unreadnum.' </td></tr>');
$rowNum ++;
}
}
} else {
$r->print('<tr><td bgcolor="#ffffff"><br><center> <i><b><small>No unread posts in course discussions</small></b></i><br><br></td></tr>');
}
$r->print('</table></td></tr></table></td></tr></table><br />');
## MESSAGES ##
$r->print(<<END);
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr>
<td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="$tabbg"><b>New course messages</b></td>
</tr>
<tr>
<td bgcolor="#ffffff">
<table width="100%" cellspacing="0" cellpadding="0" border="0">
END
if ($msgcount > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>'.&mt('Number').'</small></b></td><td><b><small>'.&mt('Subject').'</small></b></td><td><b><small>'.&mt('Sender').'</small></b></td><td><b><small>'.&mt('Date/Time').'</small></b></td></tr>');
my $rowNum = 0;
my $mailcount = 1;
foreach my $msg (@newmsgs) {
if ($rowNum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. <small></td><td valign="top"><small><a href="/adm/communicate">'.$msg->{'shortsub'}.'</a> </small></td><td valign="top"><small> '.$msg->{'from'}.'@'.$msg->{'fromdom'}.' </small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
$rowNum ++;
$mailcount ++;
}
} else {
$r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>No new course messages</small></i></b><br /><br /></center></td></tr>');
}
$r->print('</table></td></tr></table></td></tr></table><br />');
$r->print(<<END);
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr>
<td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="$tabbg"><b>New critical messages in course</b></td>
</tr>
<tr> <td bgcolor="#ffffff">
<table width="100%" cellspacing="0" cellpadding="0" border="0">
END
if ($critmsgcount > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>Number</small></b></td><td><b><small>Subject</small></b></td><td><b><small>Sender</small></b></td><td><b><small>Date/Time</small></b></td></tr>');
my $rowNum = 0;
my $mailcount = 1;
foreach my $msg (@critmsgs) {
if ($rowNum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. <small></td><td valign="top"><small><a href="/adm/mail?">'.$msg->{'shortsub'}.'</a> </small></td><td valign="top"><small> '.$msg->{'from'}.'@'.$msg->{'fromdom'}.' </small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
$rowNum ++;
$mailcount ++;
}
} else {
$r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>No unread critical messages in course</small></i></b><br /><br /></center></td></tr>');
}
$r->print('</table></td></tr></table></td></tr></table><br />');
$r->print('
</table>
</td>
</tr>
</table>');
$r->print('</td></tr></table>');
}
#-------------------------------
# display_config_box
#
# Display the threshold setting screen
#
#-------------------------------
sub display_config_box() {
my ($r,$command,$tabbg,$threshold_titles,$cdom,$crs) = @_;
my %threshold = ();
my $rowColor1 = "#ffffff";
my $rowColor2 = "#eeeeee";
my $rowColor;
my @thresholditems = ("av_attempts","degdiff","numstudents");
my %threshold_titles = (
av_attempts => 'Average number of attempts',
degdiff => 'Degree of difficulty',
numstudents => 'Total number of students with submissions',
);
&get_curr_thresholds(\%threshold,$cdom,$crs);
$r->print('<br /><form name="thresholdform" method="post"><table border="0" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000">
<tr>
<td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000">
<tr>
<td bgcolor="#ffffff">
<table cellspacing="0" cellpadding="4" border="0">
<tr bgcolor="'.$tabbg.'">
<th>Threshold Name</th>
<th>Current value</th>
<th>Change?</th>
</tr>');
my $rowNum =0;
foreach my $type (@thresholditems) {
my $parameter = 'internal.threshold_'.$type;
# onchange is javascript to automatically check the 'Set' button.
my $onchange = 'onFocus="javascript:window.document.forms'.
"['thresholdform'].elements['".$parameter."_setparmval']".
'.checked=true;"';
if ($rowNum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$r->print('
<tr bgcolor="'.$rowColor.'">
<td>'.$threshold_titles{$type}.'</td>
<td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
$threshold{$type},
10,$onchange).'</td>
<td>'
.&Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
'</td>
</tr>');
$rowNum ++;
}
$r->print('</table></td></tr></table></td></tr></table>
<br /><input type="submit" name="threshold" value="Make changes" />
<input type="hidden" name="action" value="update" />
</form>');
}
sub getitems {
my ($unread,$ungraded,$bombed,$triggered,$newdiscussions,$tograde,$bombs,$warnings,$rowColor1,$rowColor2,$threshold,$cdom,$crs,$res_title) = @_;
my $navmap = Apache::lonnavmaps::navmap->new();
my @allres=$navmap->retrieveResources();
my %discussiontime = &Apache::lonnet::dump('discussiontimes',$cdom,$crs);
my %lastread = &Apache::lonnet::dump('nohist_'.$env{'request.course.id'}.
'_discuss',$env{'user.domain'},$env{'user.name'},'lastread');
my %lastreadtime = ();
my @discussions = ();
my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
my %resourcetracker = &Apache::lonnet::dump('nohist_resourcetracker',
$cdom,$crs);
my $warningnum = 0;
foreach my $key (keys(%lastread)) {
my $newkey = $key;
$newkey =~ s/_lastread$//;
$lastreadtime{$newkey} = $lastread{$key};
}
foreach my $resource (@allres) {
my $result = '';
my $applies = 0;
my $symb = $resource->symb();
# %{$$bombed{$symb}} = ();
%{$$ungraded{$symb}} = ();
%{$$triggered{$symb}} = ();
$$triggered{$symb}{numparts} = 0;
my $title = $resource->compTitle();
$$res_title{$symb} = $title;
my $ressymb = $resource->wrap_symb();
# Check for unread discussion postings
if ($resource->hasDiscussion()) {
push(@discussions,$ressymb);
my $prevread = 0;
my $unreadcount = 0;
%{$$unread{$ressymb}} = ();
$$unread{$ressymb}{'title'} = $title;
$$unread{$ressymb}{'symb'} = $symb;
if (defined($lastreadtime{$ressymb})) {
$prevread = $lastreadtime{$ressymb};
}
my %contrib = &Apache::lonnet::restore($ressymb,
$env{'request.course.id'},$cdom,$crs);
if ($contrib{'version'}) {
for (my $id=1;$id<=$contrib{'version'};$id++) {
unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) {
if ($prevread <$contrib{$id.':timestamp'}) {
$$unread{$ressymb}{$unreadcount} = $id.': '.$contrib{$id.':subject'};
$unreadcount ++;
}
}
}
}
if ($unreadcount) { push(@{$newdiscussions}, $ressymb); }
}
# Check for ungraded problems
if ($resource->is_problem()) {
my $ctr = 0;
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
my ($partlist,$handgrade,$responseType) =
&Apache::grades::response_type($url,$symb);
my $handgradeable;
foreach my $value (values(%{$handgrade})) {
if ($value eq 'yes') { $handgradeable=1; last; }
}
if ($handgradeable) {
foreach my $student (keys(%$classlist)) {
my ($uname,$udom) = split(/:/,$student);
my %status=&Apache::grades::student_gradeStatus($url,$symb,$udom,$uname,$partlist);
my $submitted = 0;
my $ungraded = 0;
foreach (keys(%status)) {
$submitted = 1 if ($status{$_} ne 'nothing');
$ungraded = 1 if ($status{$_} =~ /^ungraded/);
my ($foo,$partid,$foo1) = split(/\./,$_);
if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
$submitted = 0;
}
}
next if (!$submitted || !$ungraded);
$ctr ++;
}
if ($ctr) {
$$ungraded{$symb}{count} = $ctr;
$$ungraded{$symb}{title} = $title;
push(@{$tograde}, $symb);
}
}
}
# Check for bombs
if ($resource->getErrors()) {
my $errors = $resource->getErrors();
$errors =~ s/^,//;
my @bombs = split(/,/, $errors);
my $errorcount = scalar(@bombs);
my $errorlink = '<a href="/adm/email?display='.
&Apache::lonnet::escape($bombs[0]).'">'.
$title.'</a>';
$$bombed{$symb}{errorcount} = $errorcount;
$$bombed{$symb}{errorlink} = $errorlink;
push(@{$bombs}, $symb);
}
# Compile maxtries and degree of difficulty for problem parts
my @parts = @{$resource->parts()};
my %stats;
my %lastreset = ();
my $warning = 0;
my $rowColor;
foreach my $part (@parts) {
%{$stats{$part}} = ();
my ($attempts,$users,$corrects,$degdiff,$av_attempts);
if (exists($resourcetracker{$symb."\0".$part."\0attempts"})) {
$attempts = $resourcetracker{$symb."\0".$part."\0attempts"};
}
if (exists($resourcetracker{$symb."\0".$part."\0users"})) {
$users = $resourcetracker{$symb."\0".$part."\0users"};
}
if (exists($resourcetracker{$symb."\0".$part."\0correct"})) {
$corrects = $resourcetracker{$symb."\0".$part."\0correct"};
}
if ($attempts > 0) {
$degdiff = 1 - ($corrects/$attempts);
$degdiff = sprintf("%.2f",$degdiff);
}
if ($users > 0) {
$av_attempts = $attempts/$users;
$av_attempts = sprintf("%.2f",$av_attempts);
}
if ((($degdiff ne '' && $degdiff >= $$threshold{'degdiff'}) || ($av_attempts ne '' && $av_attempts >= $$threshold{'av_attempts'})) && ($users >= $$threshold{'numstudents'})) {
$stats{$part}{degdiff} = $degdiff;
$stats{$part}{attempts} = $av_attempts;
$stats{$part}{users} = $users;
$lastreset{$part} = $resourcetracker{$symb."\0".$part."\0resettime"};
$warning = 1;
}
}
if ($warning) {
if ($warningnum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$$triggered{$symb}{title} = $resource->title;
foreach my $part (@parts) {
if (exists($stats{$part}{users})) {
my $resetname = 'reset_'.&Apache::lonnet::escape($symb."\0".$part);
my $resettitle = 'title_'.&Apache::lonnet::escape($symb."\0".$part);
if ($$triggered{$symb}{numparts}) {
$$triggered{$symb}{text} .= '<tr bgcolor="'.$rowColor.'">'."\n";
}
if (@parts > 1) {
$$triggered{$symb}{text} .= '
<td align="right"><small>part - '.$part.'<small></td>';
} else {
$$triggered{$symb}{text} .= '
<td align="right"><small>single part</small></td>';
}
$$triggered{$symb}{text} .= '
<td align="right"><small>'.$stats{$part}{users}.'</small></td>
<td align="right"><small>'.$stats{$part}{attempts}.'</small></td>
<td align="right"><small>'.$stats{$part}{degdiff}.'</small></td>
<td align="right"><small>'.$lastreset{$part}.'</small></td>
<td align="right"><small><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&Apache::lonnet::escape($$triggered{$symb}{title}).'" /></td>
</tr>';
$$triggered{$symb}{numparts} ++;
}
}
push(@{$warnings},$symb);
$warningnum ++;
}
}
}
sub get_curr_thresholds {
my ($threshold,$cdom,$crs) = @_;
my %coursesettings = &Apache::lonnet::dump('environment',
$cdom,$crs,'internal.threshold');
if (exists($coursesettings{'internal.threshold_av_attempts'})) {
$$threshold{'av_attempts'} = $coursesettings{'internal.threshold_av_attempts'};
}
if (exists($coursesettings{'internal.threshold_degdiff'})) {
$$threshold{'degdiff'} = $coursesettings{'internal.threshold_degdiff'};
}
if (exists($coursesettings{'internal.threshold_numstudents'})) {
$$threshold{'numstudents'} = $coursesettings{'internal.threshold_numstudents'};
}
}
sub process_reset {
my ($dom,$crs) = @_;
my $result = '<b>Counters reset for following problems (and parts):</b><br />';
my @agg_types = ('attempts','users','correct');
my %agg_titles = (
attempts => 'Number of submissions',
users => 'Students with submissions',
correct => 'Number of correct submissions',
);
my @resets = ();
my %titles = ();
foreach my $key (keys(%env)) {
next if ($key !~ /^form\.reset_(.+)$/);
my $title = &Apache::lonnet::unescape($env{'form.title_'.$1});
my $reset_item = &Apache::lonnet::unescape($1);
my %curr_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
my %aggregates = ();
my ($symb,$part) = split(/\0/,$reset_item);
foreach my $type (@agg_types) {
$aggregates{$reset_item."\0".$type} = 0;
}
$aggregates{$reset_item."\0".'resettime'} = time;
my $putresult = &Apache::lonnet::put('nohist_resourcetracker',\%aggregates,
$dom,$crs);
if ($putresult eq 'ok') {
$result .= $title.' -part '.$part.': ';
my %new_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
foreach my $type (@agg_types) {
$result .= $agg_titles{$type}.' = '.$new_aggregates{$reset_item."\0".$type}.'; ';
}
$result =~ s/; $//;
$result .= '<br />';
} else {
$result = $title.' -part '.$part.': '.&mt('Unable to reset counters to zero due to [_1]',$putresult).'.<br />'."\n";
}
}
return $result;
}
sub process_update {
my ($dom,$crs,$threshold_titles) = @_;
my $setoutput = '<b>Changes to threshold(s) for problem tracking:</b><br />';
foreach (keys %env) {
next if ($_!~/^form\.(.+)\_setparmval$/);
my $name = $1;
my $value = $env{'form.'.$name.'_value'};
if ($name && defined($value)) {
my $put_result = &Apache::lonnet::put('environment',
{$name=>$value},$dom,$crs);
my ($shortname) = ($name =~ /^internal\.threshold_(.+)$/);
if ($put_result eq 'ok') {
$setoutput.=&mt('Set threshold for [_1] to [_2]',
'<b>'.$$threshold_titles{$shortname}.'</b>',
'<b>'.$value.'</b>').'<br />';
} else {
$setoutput.=&mt('Unable to set threshold for [_1] to [_2] due to [_3].',
'<b>'.$name.'</b>','<b>'.$value.'</b>',
'<tt>'.$put_result.'</tt>').'<br />';
}
}
}
return $setoutput;
}
sub getmail {
my ($newmsgs,$critmsgs) = @_;
# Check for unread mail in course
my $msgcount = 0;
my @messages = sort(&Apache::lonnet::getkeys('nohist_email'));
foreach my $message (@messages) {
my $msgid=&Apache::lonnet::escape($message);
my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
&Apache::lonmsg::unpackmsgid($msgid);
if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
if (defined($sendtime) && $sendtime!~/error/) {
my $numsendtime = $sendtime;
$sendtime = &Apache::lonlocal::locallocaltime($sendtime);
if ($status eq 'new') {
$msgcount ++;
if ($shortsubj eq '') {
$shortsubj = &mt('No subject');
}
$shortsubj = &Apache::lonnet::unescape($shortsubj);
push(@{$newmsgs}, {
msgid => $msgid,
sendtime => $sendtime,
shortsub => $shortsubj,
from => $fromname,
fromdom => $fromdom
});
}
}
}
}
# Check for critical messages in course
my %what=&Apache::lonnet::dump('critical');
my $result = '';
my $critmsgcount = 0;
foreach my $msgid (sort(keys(%what))) {
my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
&Apache::lonmsg::unpackmsgid($msgid);
if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
if (defined($sendtime) && $sendtime!~/error/) {
my $numsendtime = $sendtime;
$sendtime = &Apache::lonlocal::locallocaltime($sendtime);
$critmsgcount ++;
if ($shortsubj eq '') {
$shortsubj = &mt('No subject');
}
$shortsubj = &Apache::lonnet::unescape($shortsubj);
push(@{$critmsgs}, {
msgid => $msgid,
sendtime => $sendtime,
shortsub => $shortsubj,
from => $fromname,
fromdom => $fromdom
});
}
}
}
return ($msgcount,$critmsgcount);
}
sub cmp_title {
my ($a,$b,$res_title) = @_;
my ($atitle,$btitle) = (lc($$res_title{$a}),lc($$res_title{$b}));
$atitle=~s/^\s*//;
$btitle=~s/^\s*//;
return $atitle cmp $btitle;
}
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