#
# $Id: lonwhatsnew.pm,v 1.36 2005/12/06 16:37:28 raeburn 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;
use GDBM_File;
#----------------------------
# 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 = $env{'form.command'};
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
if (! (($env{'request.course.fn'}) && (&Apache::lonnet::allowed('bre',$env{'request.course.id'})))) {
# Not in a course, or not allowed to view action items
$env{'user.error.msg'}="/adm/whatsnew:bre:0:0:Cannot display what's new screen";
return HTTP_NOT_ACCEPTABLE;
}
my %checkallowed = (
coursediscussion => &Apache::lonnet::allowed('pch',$env{'request.course.id'}),
handgrading => &Apache::lonnet::allowed('mgr',$env{'request.course.id'}),
abovethreshold => &Apache::lonnet::allowed('vgr',$env{'request.course.id'}),
haserrors => &Apache::lonnet::allowed('opa',$env{'request.course.id'}),
versionchanges => &Apache::lonnet::allowed('opa',$env{'request.course.id'}),
coursenormalmail => 1,
coursecritmail => 1,
);
$r->print(&display_header($command,\%checkallowed));
&Apache::lonhtmlcommon::clear_breadcrumbs();
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/whatsnew',
text=>"Display Action Items"});
if (($command eq 'chgthreshold') && (&Apache::lonnet::allowed('vgr',$env{'request.course.id'}))) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/whatsnew?command=chgthreshold',
text=>"Change thresholds"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Course Action Items','Course_Action_Items_Thresholds'));
} elsif (($command eq 'chginterval') && (&Apache::lonnet::allowed('vgr',$env{'request.course.id'}))) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/whatsnew?command=chginterval',
text=>"Change interval"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Course Action Items','Course_Action_Items_Intervals'));
} else {
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Course Action Items','Course_Action_Items_Display'));
}
&display_main_box($r,$command,\%checkallowed);
return OK;
}
#------------------------------
# display_main_box
#
# Display all the elements within the main box
#------------------------------
sub display_main_box {
my ($r,$command,$checkallowed) = @_;
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 %interval_titles = (
-1 => 'since start of course',
2592000 => 'since last month',
604800 => 'since last week',
86400 => 'since yesterday',
);
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
if (($command eq 'chgthreshold') &&
(&Apache::lonnet::allowed('vgr',$env{'request.course.id'}))) {
&display_threshold_config($r,$command,$tabbg,\%threshold_titles,
$cdom,$crs);
} elsif (($command eq 'chginterval') &&
(&Apache::lonnet::allowed('opa',$env{'request.course.id'}))) {
&display_interval_config($r,\%interval_titles);
} else {
&display_actions_box($r,$command,\%threshold_titles,\%interval_titles,
$cdom,$crs,$checkallowed);
}
$r->print(<<END_OF_BLOCK);
</td>
</tr>
</table><br />
</body>
</html>
END_OF_BLOCK
}
#-------------------------------
# display_header
#
# Display the header information and set
# up the HTML
#-------------------------------
sub display_header{
my ($command,$checkallowed) = @_;
my $html=&Apache::lonxml::xmlbegin();
my $bodytag=&Apache::loncommon::bodytag('Course Action Items');
my $scripttag;
unless ($command eq 'chgthreshold' || $command eq 'chginterval') {
$scripttag = <<"END";
<script type="text/javascript">
function change_display(caller,change) {
caller.value = change;
document.visible.submit();
}
function changeAll(change) {
END
foreach my $item (keys(%{$checkallowed})) {
$scripttag.='document.visible.display_'.$item.'.value=change'."\n";
}
$scripttag.='document.visible.submit();
}
</script>
';
}
return(<<ENDHEAD);
$html
<head>
<title>Course Action Items</title>
$scripttag
</head>
$bodytag
ENDHEAD
}
#-------------------------------
# display_actions_box
#
# Display the action items
#
#-------------------------------
sub display_actions_box() {
my ($r,$command,$threshold_titles,$interval_titles,$cdom,$crs,
$checkallowed) = @_;
my $rowColor1 = "#ffffff";
my $rowColor2 = "#eeeeee";
my $udom = $env{'user.domain'};
my $uname = $env{'user.name'};
my $cid = $env{'request.course.id'};
my %lt = &Apache::lonlocal::texthash(
'yacc' => 'You are accessing an invalid course.',
'gtfr' => 'Go to first resource',
'chyp' => 'Change your preferences',
'tsup' => 'to suppress display of this screen when accessing'.
' this course in the future.',
'hial' => 'Hide all',
'shal' => 'Show all',
);
my %unread = ();
my %ungraded = ();
my %bombed = ();
my %triggered = ();
my %changed = ();
my @newmsgs = ();
my @critmsgs = ();
my @newdiscussions = ();
my @tograde = ();
my @bombs = ();
my @warnings = ();
my $msgcount = 0;
my $critmsgcount = 0;
my %res_title = ();
my %show = ();
my $needitems = 0;
my $boxcount = 0;
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',$domain);
unless ($cid) {
$r->print('<br /><b><center>'.$lt{'yacc'}.'</center></b><br /><br />');
return;
}
if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
&GDBM_READER(),0640)) {
my $furl=$bighash{'first_url'};
$r->print('<font size="+1"><a href="'.$furl.'">'.$lt{'gtfr'}.
'</a></font><a href="/adm/preferences?action=changecourseinit">'.
'</font><br />'.$lt{'chyp'}.'</a> '.$lt{'tsup'}.'<br /><hr />');
untie(%bighash);
}
my $result;
if ($command eq 'reset') {
$result = &process_reset($cdom,$crs);
} elsif ($command eq 'update') {
$result = &process_update($cdom,$crs,$threshold_titles);
} elsif ($command eq 'newinterval') {
$result = &store_interval_setting($uname,$udom,$cid,$interval_titles);
}
my $store_result=&store_display_settings($uname,$udom,$cid,$checkallowed);
unless ($store_result eq 'ok') {
&Apache::lonnet::logthis('Error storing whatsnew settings: '.
$store_result.' for '.'user '.$uname.':'.$udom.' in course '.$cid);
$result .= &mt('Unable to store visibility settings due to [_1]',
$store_result);
}
if ($result) {
$r->print($result.'<hr width="100%" />');
}
$r->rflush();
my %display_settings = &get_display_settings($uname,$udom,$cid);
my $timediff = $display_settings{$cid.':interval'};
unless (defined($timediff)) { $timediff = 604800; }
my $now = time;
my $interval = $$interval_titles{$timediff};
if ($timediff == -1) {
$timediff = time;
}
my $starttime = $now - $timediff;
my %headings = &Apache::lonlocal::texthash(
coursediscussion => 'Unread course discussion posts',
handgrading => 'Problems requiring handgrading',
haserrors => 'Problems with errors',
versionchanges => 'Resources in course with version changes '.$interval,
coursenormalmail => 'New course message',
coursecritmail => 'New critical messages in course',
);
if ($$checkallowed{'abovethreshold'}) {
&get_curr_thresholds(\%threshold,$cdom,$crs);
}
$headings{'abovethreshold'} = &mt('Problems with av. attempts').' ≥ '.$threshold{'av_attempts'}.' '.&mt('or deg. difficulty').' ≥ '.$threshold{'degdiff'}.'<br /> '.&mt('and total number of students with submissions').' ≥ '.$threshold{'numstudents'};
my @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail');
foreach my $key (keys(%{$checkallowed})) {
$show{$key} = 0;
if ($$checkallowed{$key}) {
unless ($display_settings{$cid.':'.$key} eq 'hide') {
$show{$key} = 1;
}
}
}
foreach my $item (@actionorder) {
unless ($item eq 'coursenormalmail' || $item eq 'coursecritmail') {
if ($show{$item}) {
$needitems = 1;
last;
}
}
}
if ($needitems) {
&getitems(\%unread,\%ungraded,\%bombed,\%triggered,\%changed,\@newdiscussions,\@tograde,\@bombs,\@warnings,$rowColor1,$rowColor2,\%threshold,$cdom,$crs,\%res_title,\%show,$starttime);
}
if ($show{'coursenormalmail'}) {
&getnormalmail(\@newmsgs);
}
if ($show{'coursecritmail'}) {
&getcritmail(\@critmsgs);
}
$r->print(qq|<a href="javascript:changeAll('hide');">$lt{'hial'}</a>
<a href="javascript:changeAll('show');">$lt{'shal'}</a>
<form method="post" name="visible" action="/adm/whatsnew">\n|);
foreach my $item (keys(%{$checkallowed})) {
if ($$checkallowed{$item}) {
$r->print('<input type="hidden" name="display_'.$item.'" />'."\n");
}
}
$r->print('</form><br /><table border="0" width="100%" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">');
my $displayed = 0;
my $totalboxes = keys(%{$checkallowed});
my $halfway = int($totalboxes/2) + $totalboxes%2;
foreach my $actionitem (@actionorder) {
if ($$checkallowed{$actionitem}) {
if ($displayed == $halfway) {
$r->print('</td><td width="5%"> </td><td align="left" valign="top" width-"50%">');
}
&display_launcher($r,$actionitem,$checkallowed,$tabbg,$rowColor1,$rowColor2,\%show,\%headings,\%res_title,\@tograde,\%ungraded,\@bombs,\%bombed,\%changed,\@warnings,\%triggered,\@newdiscussions,\%unread,$msgcount,\@newmsgs,$critmsgcount,\@critmsgs,$interval);
$displayed ++;
}
}
$r->print('
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>');
}
#-------------------------------
# display_threshold_config
#
# Display the threshold setting screen
#
#-------------------------------
sub display_threshold_config {
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" action="/adm/whatsnew">
<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="command" value="update" />
</form>');
}
#-------------------------------
# display_interval_config
#
# Display the interval setting screen
#
#-------------------------------
sub display_interval_config {
my ($r,$interval_titles) = @_;
my $current = &get_curr_interval($env{'user.name'},
$env{'user.domain'},$env{'request.course.id'});
$r->print('<br />'.&mt('Choose the time window to use for display of version changes for resources in the course.'));
unless ($current eq '') {
$r->print(' '.&mt('Current value is ').$$interval_titles{$current}.'<br /><br />');
}
$r->print('<br /><br />
<form method="post" name="intervalswitch" action="/adm/whatsnew">
<input type="hidden" name="command" value="newinterval" />
<select name="interval">
');
foreach my $key (reverse sort ({$a cmp $b} (keys(%{$interval_titles})))) {
$r->print('<option value="'.$key.'">Version changes '.$$interval_titles{$key}.
'</option>'."\n");
}
$r->print('</select>
<input type="submit" name="display" value="'.
&mt('Change interval').'" /></form>');
return;
}
sub display_launcher {
my ($r,$action,$checkallowed,$tabbg,$rowColor1,$rowColor2,$show,
$headings,$res_title,$tograde,$ungraded,$bombs,$bombed,$changed,
$warnings,$triggered,$newdiscussions,$unread,$msgcount,$newmsgs,
$critmsgcount,$critmsgs,$interval) = @_;
if ($$checkallowed{$action}) {
&start_box($r,$tabbg,$show,$headings,$action);
if ($$show{$action}) {
if ($action eq 'handgrading') { # UNGRADED ITEMS
&display_handgrade($r,$tograde,$rowColor1,$rowColor2,
$ungraded);
} elsif ($action eq 'haserrors') { # BOMBS
&display_haserrors($r,$bombs,$rowColor1,$rowColor2,$bombed,
$res_title);
} elsif ($action eq 'versionchanges') { # VERSION CHANGES
&display_versionchanges($r,$changed,$res_title,$rowColor1,
$rowColor2,$interval);
} elsif ($action eq 'abovethreshold') { # DEGDIFF/AV. TRIES TRIGGERS
&display_abovethreshold($r,$warnings,$triggered,$res_title,
$rowColor1,$rowColor2);
} elsif ($action eq 'coursediscussion') { # UNREAD COURSE DISCUSSION
&display_coursediscussion($r,$newdiscussions,$unread,
$res_title,$rowColor1,$rowColor2);
} elsif ($action eq 'coursenormalmail') { # NORMAL MESSAGES
&display_coursenormalmail($r,$msgcount,$newmsgs,$rowColor1,
$rowColor2);
} elsif ($action eq 'coursecritmail') { # CRITICAL MESSAGES
&display_coursecritmail($r,$critmsgcount,$critmsgs,$rowColor1,
$rowColor2);
}
}
&end_box($r);
}
return;
}
sub getitems {
my ($unread,$ungraded,$bombed,$triggered,$changed,$newdiscussions,
$tograde,$bombs,$warnings,$rowColor1,$rowColor2,$threshold,$cdom,$crs,
$res_title,$show,$starttime) = @_;
my $navmap = Apache::lonnavmaps::navmap->new();
# force retrieve Resource to seed the part id cache we'll need it later
my @allres=$navmap->retrieveResources(undef,sub {if ($_[0]->is_problem) { $_[0]->parts();} return 1;});
my %lastreadtime;
my %resourcetracker;
# Resource version changes
if ($$show{'versionchanges'}) {
&checkversions($cdom,$crs,$navmap,$changed,$starttime);
}
if ($$show{'coursediscussions'}) {
my %lastread = &Apache::lonnet::dump('nohist_'.
$env{'request.course.id'}.'_discuss',
$env{'user.domain'},$env{'user.name'},'lastread');
foreach my $key (keys(%lastread)) {
my $newkey = $key;
$newkey =~ s/_lastread$//;
$lastreadtime{$newkey} = $lastread{$key};
}
}
if ($$show{'abovethreshold'}) {
%resourcetracker = &Apache::lonnet::dump('nohist_resourcetracker',
$cdom,$crs);
}
my $warningnum = 0;
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();
$$res_title{$symb} = $title;
my $ressymb = $resource->wrap_symb();
# Check for unread discussion postings
if ($$show{'coursediscussion'}) {
&check_discussions($cdom,$crs,$resource,$symb,$ressymb,$title,
$newdiscussions,$unread,\%lastreadtime);
}
# Check for ungraded problems
if ($resource->is_problem()) {
if ($$show{'handgrading'}) {
&check_handgraded($resource,$symb,$title,$cdom,$crs,$ungraded,
$tograde);
}
}
# Check for bombs
if ($$show{'haserrors'}) {
&check_bombed($resource,$symb,$title,$bombs,$bombed);
}
# Maxtries and degree of difficulty for problem parts, unless handgradeable
if ($$show{'abovethreshold'}) {
&check_thresholds($resource,$symb,\%resourcetracker,$triggered,
$threshold,$warnings,$warningnum,$rowColor1,$rowColor2);
}
}
}
sub check_discussions {
my ($cdom,$crs,$resource,$symb,$ressymb,$title,$newdiscussions,$unread,
$lastreadtime) = @_;
# Check for unread discussion postings
if ($resource->hasDiscussion()) {
my $prevread = 0;
my $unreadcount = 0;
%{$$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'}) {
$$unread{$ressymb}{$unreadcount} = $id.': '.$contrib{$id.':subject'};
$unreadcount ++;
}
}
}
}
if ($unreadcount) { push(@{$newdiscussions}, $ressymb); }
}
}
sub check_handgraded {
my ($resource,$symb,$title,$cdom,$cnum,$ungraded,$tograde) = @_;
if ($resource->is_problem()) {
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
my $partlist=$resource->parts();
my $handgradeable;
foreach my $part (@$partlist) {
if ($resource->handgrade($part) eq 'yes') {
$handgradeable=1; last;
}
}
if ($handgradeable) {
my @ungraded = &Apache::bridgetask::get_queue_symb_status(
'gradingqueue',$symb,$cdom,$cnum);
if (@ungraded > 0) {
$$ungraded{$symb}{count} = scalar(@ungraded);
$$ungraded{$symb}{title} = $title;
push(@{$tograde}, $symb);
}
}
}
}
sub check_bombed {
my ($resource,$symb,$title,$bombs,$bombed) = @_;
if ($resource->getErrors()) {
my $errors = $resource->getErrors();
$errors =~ s/^,//;
my @bombs = split(/,/, $errors);
my $errorcount = scalar(@bombs);
my $errorlink = '<a href="/adm/email?display='.
&Apache::lonnet::escape($bombs[0]).'">'.
$title.'</a>';
$$bombed{$symb}{errorcount} = $errorcount;
$$bombed{$symb}{errorlink} = $errorlink;
push(@{$bombs}, $symb);
}
}
sub check_thresholds {
my ($resource,$symb,$resourcetracker,$triggered,$threshold,$warnings,
$warningnum,$rowColor1,$rowColor2) = @_;
# Compile maxtries and degree of difficulty for problem parts, unless handgradeable
my @parts = @{$resource->parts()};
my %stats;
my %lastreset = ();
my $warning = 0;
my $rowColor;
foreach my $part (@parts) {
if ($resource->handgrade($part) eq 'yes') {
next;
}
%{$stats{$part}} = ();
my ($attempts,$users,$corrects,$degdiff,$av_attempts);
if (exists($$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} = $$resourcetracker{$symb."\0".$part."\0resettime"};
if ($lastreset{$part}) {
$lastreset{$part} = &Apache::lonnavmaps::timeToHumanString($lastreset{$part});
}
$warning = 1;
}
}
if ($warning) {
if ($warningnum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
$$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'} = $coursesettings{'internal.threshold_numstudents'};
}
}
sub get_curr_interval {
my ($uname,$udom,$cid);
my $interval;
my %settings = &Apache::lonnet::dump('nohist_whatsnew',$uname,$udom,$cid,':interval');
my ($tmp) = %settings;
if ($tmp =~ /^Error/) {
&logthis();
} else {
$interval = $settings{$cid.':interval'};
}
return $interval;
}
sub process_reset {
my ($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 getnormalmail {
my ($newmsgs) = @_;
# 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
});
}
}
}
}
return $msgcount;
}
sub getcritmail {
my ($critmsgs) = @_;
# 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 $critmsgcount;
}
sub checkversions {
my ($cdom,$crs,$navmap,$changed,$starttime) = @_;
my %changes=&Apache::lonnet::dump('versionupdate',$cdom,$crs);
my ($tmp) = keys(%changes);
if ($tmp =~/^error\:/) {
&Apache::lonnet::logthis('Error retrieving version update information: '.
$tmp.' for '.$cdom.'_'.$crs.' in whatsnew');
} else {
if (keys(%changes) > 0) {
foreach my $key (sort(keys(%changes))) {
if ($changes{$key} > $starttime) {
my $version;
my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
my $currentversion=&Apache::lonnet::getversion($key);
my $revdate =
&Apache::lonnet::metadata($root.'.'.$extension,
'lastrevisiondate');
$revdate = &Apache::lonlocal::locallocaltime($revdate);
my $linkurl=&Apache::lonnet::clutter($key);
my $usedversion=$navmap->usedVersion('version_'.$linkurl);
my @resources = $navmap->getResourceByUrl($linkurl,1);
if (($usedversion) && ($usedversion ne 'mostrecent')) {
$version = $usedversion;
} else {
$version = $currentversion;
}
foreach my $res (@resources) {
if (ref($res) eq 'Apache::lonnavmaps::resource') {
my $symb = $res->symb();
%{$$changed{$symb}} = (
current => $currentversion,
version => $version,
revdate => $revdate,
);
}
}
}
}
}
}
return;
}
sub display_handgrade {
my ($r,$tograde,$rowColor1,$rowColor2,$ungraded) = @_;
my $rowColor;
my %lt = &Apache::lonlocal::texthash(
'prna' => 'Problem Name',
'nmun' => 'Number ungraded',
'nopr' => 'No problems require handgrading',
);
if (@{$tograde} > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'prna'}.'</small></b></td><td align="right"><b><small>'.$lt{'nmun'}.'</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 {
$r->print('<tr><td bgcolor="#ffffff"><br><center><i><b><small> '.$lt{'nopr'}.' </small><br><br></b></i></td></tr>');
}
}
sub display_haserrors {
my ($r,$bombs,$rowColor1,$rowColor2,$bombed,$res_title) = @_;
my $bombnum = 0;
my $rowColor;
my %lt = &Apache::lonlocal::texthash(
reso => 'Resource',
nmer => 'Number of errors',
noer => 'No problems with errors',
);
if (@{$bombs} > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'reso'}.'</small></b></td><td align="right"><b><small>'.$lt{'nmer'}.'</small></b></td></tr>');
@{$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 {
$r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>'.$lt{'noer'}.'</small></i></b></center><br /></td></tr>');
}
return;
}
sub display_abovethreshold {
my ($r,$warnings,$triggered,$res_title,$rowColor1,$rowColor2) = @_;
my %lt = &Apache::lonlocal::texthash(
reso => 'Resource',
part => 'Part',
nust => 'Num. students',
avat => 'Av. Attempts',
dedi => 'Deg. Diff',
lare => 'Last Reset',
reco => 'Reset Count?',
rese => 'Reset counters to 0',
nopr => 'No problems satisfy threshold criteria',
);
my $rowColor;
my $warningnum = 0;
if (@{$warnings} > 0) {
@{$warnings} = sort { &cmp_title($a,$b,$res_title) } @{$warnings};
$r->print('<form name="reset_tracking" method="post" action="/adm/whatsnew">'.
' <input type="hidden" name="command" value="reset" />'."\n");
$r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'reso'}.'</small></b></td><td align="right"><b><small>'.$lt{'part'}.'</small></b></td><td align="right"><b><small>'.$lt{'nust'}.'</small></b></td><td align="right"><b><small>'.$lt{'avat'}.'</small></b></td><td align="right"><b><small>'.$lt{'dedi'}.'</small></b></td><td align="right"><b><small>'.$lt{'lare'}.'</small></b></td><td align="right"><b><small>'.$lt{'reco'}.'</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 ++;
}
$r->print('<tr bgcolor="#cccccc"><td colspan="7" align="right"><br /><b><small><input type="submit" name="counters" value="'.$lt{'rese'}.'" /></form>');
} else {
$r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>'.$lt{'nopr'}.'</small></i></b></center><br /></td></tr>');
}
}
sub display_versionchanges {
my ($r,$changed,$res_title,$rowColor1,$rowColor2,$interval) = @_;
my %lt = &Apache::lonlocal::texthash(
'reso' => 'Resource',
'revd' => 'Last revised',
'newv' => 'New version',
'veru' => 'Version used',
'noup' => 'No updated versions',
);
my $rowColor;
if (keys(%{$changed}) > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'reso'}.'</small></b></td><td><b><small>'.$lt{'revd'}.'</small></b></td><td><b><small>'.$lt{'newv'}.'</small></b></td><td><b><small>'.$lt{'veru'}.'</small></b></td></tr>');
my @changes = sort { &cmp_title($a,$b,$res_title) } keys(%{$changed});
my $changenum = 0;
foreach my $item (@changes) {
if ($changenum %2 == 1) {
$rowColor = $rowColor1;
} else {
$rowColor = $rowColor2;
}
my ($map,$id,$url)=&Apache::lonnet::decode_symb($item);
my $linkurl=&Apache::lonnet::clutter($url);
$linkurl .= '?symb='.&Apache::lonnet::escape($item);
$r->print('<tr bgcolor="'.$rowColor.'"><td><small><a href="'.$linkurl.'">'.$$res_title{$item}.'</a></small></td><td><small>'.$$changed{$item}{'revdate'}.'</small></td><td><small>'.$$changed{$item}{'current'}.'</small></td><td><small>'.$$changed{$item}{'version'}.'</small></td></tr>');
$changenum ++;
}
} else {
$r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>'.$lt{'noup'}.' '.$interval.'</small></i></b></center><br /></td></tr>');
}
return;
}
sub display_coursediscussion {
my ($r,$newdiscussions,$unread,$res_title,$rowColor1,$rowColor2) = @_;
my %lt = &Apache::lonlocal::texthash(
'loca' => 'Location',
'type' => 'Type',
'numn' => 'Number of new posts',
'noun' => 'No unread posts in course discussions',
);
my $rowColor;
if (@{$newdiscussions} > 0) {
$r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'loca'}.
'</small></b></td><td><b><small>'.$lt{'type'}.
'</small></b><td align="right"><b><small>'.$lt{'numn'}.
'</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>'.
$lt{'noun'}.'</small></b></i><br><br></td></tr>');
}
}
sub display_coursenormalmail {
my ($r,$msgcount,$newmsgs,$rowColor1,$rowColor2) = @_;
my $rowColor;
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>'.&mt('No new course messages').'</small></i></b><br /><br /></center></td></tr>');
}
}
sub display_coursecritmail {
my ($r,$critmsgcount,$critmsgs,$rowColor1,$rowColor2) = @_;
my $rowColor;
if ($critmsgcount > 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 (@{$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/email?folder=critical">'.$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>'.&mt('No unread critical messages in course').'</small></i></b><br /><br /></center></td></tr>');
}
}
sub cmp_title {
my ($a,$b,$res_title) = @_;
my ($atitle,$btitle) = (lc($$res_title{$a}),lc($$res_title{$b}));
$atitle=~s/^\s*//;
$btitle=~s/^\s*//;
return $atitle cmp $btitle;
}
sub get_display_settings {
my ($uname,$udom,$cid) = @_;
my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid);
my ($tmp) = keys(%settings);
if ($tmp=~/^error:/) {
%settings = ();
unless ($tmp eq 'error: 2 tie(GDBM) Failed while attempting dump') {
&logthis('Error retrieving whatsnew settings: '.$tmp.' for '.
$uname.':'.$udom.' for course: '.$cid);
}
}
return %settings;
}
sub store_display_settings {
my ($uname,$udom,$cid,$checkallowed) = @_;
my %whatsnew_settings;
my $result;
foreach my $key (keys(%{$checkallowed})) {
if (exists($env{'form.display_'.$key})) {
unless ($env{'form.display_'.$key} eq '') {
$whatsnew_settings{$cid.':'.$key} = $env{'form.display_'.$key};
}
}
}
if (keys(%whatsnew_settings)) {
$result = &Apache::lonnet::put('nohist_whatsnew',\%whatsnew_settings,
$udom,$uname);
} else {
$result = 'ok';
}
return $result;
}
sub store_interval_setting {
my ($uname,$udom,$cid,$interval_titles) = @_;
my %interval_settings = ();
my $result;
if (defined($env{'form.interval'})) {
$interval_settings{$cid.':interval'} = $env{'form.interval'};
my $outcome = &Apache::lonnet::put('nohist_whatsnew',
\%interval_settings,$udom,$uname);
if ($outcome eq 'ok') {
$result = &mt('Interval set to version changes [_1]',
'<b>'.$$interval_titles{$env{'form.interval'}}.'</b><br />');
} else {
&Apache::lonnet::logthis('Error storing whatsnew interval setting'.
' '.$outcome.' for '.$uname.':'.$udom.' in course '.$cid);
$result = &mt('Unable to set interval to [_1] due to [_2].',
'<b>'.$$interval_titles{$env{'form.interval'}}.'</b>',
'<tt>'.$outcome.'</tt>.<br />');
}
}
return $result;
}
sub start_box {
my ($r,$tabbg,$show,$heading,$caller) = @_;
my %lt = &Apache::lonlocal::texthash(
chth => 'Change thresholds?',
chin => 'Change interval?',
);
my $showhide;
if ($$show{$caller}) {
$showhide = '<b><a href="javascript:change_display(document.visible.'.
'display_'.$caller.",'hide'".');">Hide</a></b>';
} else {
$showhide = '<b><a href="javascript:change_display(document.visible.'.
'display_'.$caller.",'show'".');">Show</a></b>';
}
$r->print('
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
<tr>
<td>
<table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
<tr>
<td bgcolor="'.$tabbg.'">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><b>'.$$heading{$caller}.'</b></td>
<td valign="top" align="right">'.$showhide.'</td>
</tr>
</table>
</td>
</tr>');
if (($caller eq 'abovethreshold') && ($$show{$caller})) {
$r->print('
<tr>
<td bgcolor="'.$tabbg.'" align="right"><a href="/adm/whatsnew?command=chgthreshold"><b><small>'.$lt{'chth'}.'</small></b></a></td>
</tr>');
} elsif (($caller eq 'versionchanges') && ($$show{$caller})) {
$r->print('
<tr>
<td bgcolor="'.$tabbg.'" align="right"><a href="/adm/whatsnew?command=chginterval"><b><small>'.$lt{'chin'}.'</small></b></a></td>
</tr>');
}
$r->print('
<tr>
<td bgcolor="#ffffff">
<table cellpadding="2" cellspacing="0" border="0" width="100%">
');
return;
}
sub end_box {
my ($r) = shift;
$r->print('
</table>
</td>
</tr>
</table>
</td>
</tr>
</table><br />');
return;
}
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