loncom/interface/lonnavmaps.pm - diff

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Diff for /loncom/interface/lonnavmaps.pm between versions 1.349.2.2 and 1.395

version 1.349.2.2, 2005/12/05 21:37:19	version 1.395, 2006/12/24 22:13:19
Line 31 package Apache::lonnavmaps;	Line 31 package Apache::lonnavmaps;

use strict;	use strict;
use GDBM_File;	use GDBM_File;
use Apache::Constants qw(:common :http);
use Apache::loncommon();	use Apache::loncommon();
use Apache::lonmenu();
use Apache::lonenc();	use Apache::lonenc();
use Apache::lonlocal;	use Apache::lonlocal;
use Apache::lonnet;	use Apache::lonnet;
use POSIX qw (floor strftime);	use POSIX qw (floor strftime);
use Data::Dumper; # for debugging, not always	use Data::Dumper; # for debugging, not always
use Time::HiRes qw( gettimeofday tv_interval );	use Time::HiRes qw( gettimeofday tv_interval );
	use lib '/home/httpd/lib/perl/';
	use LONCAPA;

# symbolic constants	# symbolic constants
sub SYMB { return 1; }	sub SYMB { return 1; }
Line 57 my %statusIconMap =	Line 57 my %statusIconMap =
$resObj->CLOSED => '',	$resObj->CLOSED => '',
$resObj->OPEN => 'navmap.open.gif',	$resObj->OPEN => 'navmap.open.gif',
$resObj->CORRECT => 'navmap.correct.gif',	$resObj->CORRECT => 'navmap.correct.gif',
$resObj->PARTIALLY_CORRECT => 'navmap.ellipsis.gif',	$resObj->PARTIALLY_CORRECT => 'navmap.partial.gif',
$resObj->INCORRECT => 'navmap.wrong.gif',	$resObj->INCORRECT => 'navmap.wrong.gif',
$resObj->ATTEMPTED => 'navmap.ellipsis.gif',	$resObj->ATTEMPTED => 'navmap.ellipsis.gif',
$resObj->ERROR => ''	$resObj->ERROR => ''
Line 89 my %colormap =	Line 89 my %colormap =
# is not yet done and due in less then 24 hours	# is not yet done and due in less then 24 hours
my $hurryUpColor = "#FF0000";	my $hurryUpColor = "#FF0000";

sub launch_win {
my ($mode,$script,$toplinkitems,$firsttime)=@_;
my $result;
if ($script ne 'no') {
$result.='<script type="text/javascript">';
}
if ($firsttime) {
$result.='function launch_navmapwin() {
newWindow=open(\'/adm/navmaps?launchExternalRoles\',\'loncapanav\',\'width=400,height=600,scrollbars=1\');
}';
} else {
$result.='function launch_navmapwin() {
newWindow=open(\'/adm/navmaps?launchExternal\',\'loncapanav\',\'width=400,height=600,scrollbars=1\');
}';
}
if ($mode eq 'now') {
$result.="\nlaunch_navmapwin();\n";
}
if ($script ne 'no') {
$result.='</script>';
}
if ($mode eq 'link') {
&add_linkitem($toplinkitems,'launchnav','launch_navmapwin()',
"Launch navigation window");
}
return $result;
}

sub close {	sub close {
if ($env{'environment.remotenavmap'} ne 'on') { return ''; }	if ($env{'environment.remotenavmap'} ne 'on') { return ''; }
return(<<ENDCLOSE);	return(<<ENDCLOSE);
Line 145 this.document.navform.submit();	Line 117 this.document.navform.submit();
ENDUPDATE	ENDUPDATE
}	}

sub handler {
my $r = shift;
real_handler($r);
}

sub real_handler {
my $r = shift;
#my $t0=[&gettimeofday()];
# Handle header-only request
if ($r->header_only) {
if ($env{'browser.mathml'}) {
&Apache::loncommon::content_type($r,'text/xml');
} else {
&Apache::loncommon::content_type($r,'text/html');
}
$r->send_http_header;
return OK;
}

# Send header, don't cache this page
if ($env{'browser.mathml'}) {
&Apache::loncommon::content_type($r,'text/xml');
} else {
&Apache::loncommon::content_type($r,'text/html');
}
&Apache::loncommon::no_cache($r);

my %toplinkitems=();
&add_linkitem(\%toplinkitems,'blank','',"Select Action");
if ($ENV{QUERY_STRING} eq 'collapseExternal') {
&Apache::lonnet::put('environment',{'remotenavmap' => 'off'});
&Apache::lonnet::appenv('environment.remotenavmap' => 'off');
my $menu=&Apache::lonmenu::reopenmenu();
my $navstatus=&Apache::lonmenu::get_nav_status();
if ($menu) {
$menu=(<<MENU)
swmenu=$menu
swmenu.clearTimeout(swmenu.menucltim);
$navstatus
MENU
} else {
my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
my $mainwindow='window.open('.$nothing.',"loncapaclient","",false);';
$menu=(<<MENU)
swmenu=$mainwindow
$navstatus
MENU
}
$r->send_http_header;
my $html=&Apache::lonxml::xmlbegin();
$r->print(<<"ENDSUBM");
$html
<head>
<script type="text/javascript">
function submitthis() {
$menu
self.close();
}

</script>
</head>
<body bgcolor="#FFFFFF" onLoad="submitthis()"></body>
</html>
ENDSUBM
return OK;
}
if ($ENV{QUERY_STRING} =~ /^launchExternal/) {
&Apache::lonnet::put('environment',{'remotenavmap' => 'on'});
&Apache::lonnet::appenv('environment.remotenavmap' => 'on');
my $menu=&Apache::lonmenu::reopenmenu();
my $navstatus=&Apache::lonmenu::get_nav_status();
if ($menu) {
$r->print(<<MENU);
<script type="text/javascript">
swmenu=$menu
swmenu.clearTimeout(swmenu.menucltim);
$navstatus
</script>
MENU
}
}
if ($ENV{QUERY_STRING} eq 'turningOffExternal') {
$env{'environment.remotenavmap'}='off';
}

# Create the nav map
my $navmap = Apache::lonnavmaps::navmap->new();

if (!defined($navmap)) {
my $requrl = $r->uri;
$env{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized";
return HTTP_NOT_ACCEPTABLE;
}
$r->send_http_header;
my $html=&Apache::lonxml::xmlbegin();
$r->print("$html<head>\n");
$r->print("<title>".&mt('Navigate Course Contents')."</title>");
# ------------------------------------------------------------ Get query string
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register','sort','showOnlyHomework','postsymb']);

# ----------------------------------------------------- Force menu registration
my $addentries='';
my $more_unload;
my $body_only='';
if ($env{'environment.remotenavmap'} eq 'on') {
$r->print('<script type="text/javascript">
function collapse() {
this.document.location="/adm/navmaps?collapseExternal";
}
</script>');
# FIXME need to be smarter to only catch window close events
# $more_unload="collapse()"
$body_only=1;
}
if ($env{'form.register'}) {
$addentries=' onLoad="'.&Apache::lonmenu::loadevents().
'" onUnload="'.&Apache::lonmenu::unloadevents().';'.
$more_unload.'"';
$r->print(&Apache::lonmenu::registerurl(1));
} else {
$addentries=' onUnload="'.$more_unload.'"';
}

# Header
$r->print('</head>'.
&Apache::loncommon::bodytag('Navigate Course Contents','',
$addentries,$body_only,'',
$env{'form.register'}));
$r->print('<script>window.focus();</script>');

$r->rflush();

# Check that it's defined
if (!($navmap->courseMapDefined())) {
$r->print(&Apache::loncommon::help_open_menu('','Navigation Screen','Navigation_Screen','',undef,'RAT'));
$r->print('<font size="+2" color="red">Coursemap undefined.</font>' .
'</body></html>');
return OK;
}

# See if there's only one map in the top-level, if we don't
# already have a filter... if so, automatically display it
# (older code; should use retrieveResources)
if ($ENV{QUERY_STRING} !~ /filter/) {
my $iterator = $navmap->getIterator(undef, undef, undef, 0);
my $curRes;
my $sequenceCount = 0;
my $sequenceId;
while ($curRes = $iterator->next()) {
if (ref($curRes) && $curRes->is_sequence()) {
$sequenceCount++;
$sequenceId = $curRes->map_pc();
}
}

if ($sequenceCount == 1) {
# The automatic iterator creation in the render call
# will pick this up. We know the condition because
# the defined($env{'form.filter'}) also ensures this
# is a fresh call.
$env{'form.filter'} = "$sequenceId";
}
}

if ($ENV{QUERY_STRING} eq 'launchExternal') {
$r->print('
<form name="returnwin" action="/adm/flip?postdata=navlaunch%3a"
method="post" target="loncapaclient">
</form>');
$r->print('
<script type="text/javascript">
this.document.returnwin.submit();
</script>');
}

if ($env{'environment.remotenavmap'} ne 'on') {
$r->print(&launch_win('link','yes',\%toplinkitems));
}
if ($env{'environment.remotenavmap'} eq 'on') {
&add_linkitem(\%toplinkitems,'closenav','collapse()',
"Close navigation window");
}

my $jumpToFirstHomework = 0;
# Check to see if the student is jumping to next open, do-able problem
if ($ENV{QUERY_STRING} =~ /^jumpToFirstHomework/) {
$jumpToFirstHomework = 1;
# Find the next homework problem that they can do.
my $iterator = $navmap->getIterator(undef, undef, undef, 1);
my $curRes;
my $foundDoableProblem = 0;
my $problemRes;

while (($curRes = $iterator->next()) && !$foundDoableProblem) {
if (ref($curRes) && $curRes->is_problem()) {
my $status = $curRes->status();
if ($curRes->completable()) {
$problemRes = $curRes;
$foundDoableProblem = 1;

# Pop open all previous maps
my $stack = $iterator->getStack();
pop @$stack; # last resource in the stack is the problem
# itself, which we don't need in the map stack
my @mapPcs = map {$_->map_pc()} @$stack;
$env{'form.filter'} = join(',', @mapPcs);

# Mark as both "here" and "jump"
$env{'form.postsymb'} = $curRes->symb();
}
}
}

# If we found no problems, print a note to that effect.
if (!$foundDoableProblem) {
$r->print("<font size='+2'>All homework assignments have been completed.</font><br /><br />");
}
} else {
&add_linkitem(\%toplinkitems,'firsthomework',
'location.href="navmaps?jumpToFirstHomework"',
"Show Me My First Homework Problem");
}

my $suppressEmptySequences = 0;
my $filterFunc = undef;
my $resource_no_folder_link = 0;

# Display only due homework.
my $showOnlyHomework = 0;
if ($env{'form.showOnlyHomework'} eq "1") {
$showOnlyHomework = 1;
$suppressEmptySequences = 1;
$filterFunc = sub { my $res = shift;
return $res->completable() \|\| $res->is_map();
};
&add_linkitem(\%toplinkitems,'everything',
'location.href="navmaps?sort='.$env{'form.sort'}.'"',
"Show Everything");
$r->print("<p><font size='+2'>".&mt("Uncompleted Homework")."</font></p>");
$env{'form.filter'} = '';
$env{'form.condition'} = 1;
$resource_no_folder_link = 1;
} else {
&add_linkitem(\%toplinkitems,'uncompleted',
'location.href="navmaps?sort='.$env{'form.sort'}.
'&showOnlyHomework=1"',
"Show Only Uncompleted Homework");
}

my %selected=($env{'form.sort'} => 'selected=on');
my $sort_html=("<form>
<nobr>
<input type=\"hidden\" name=\"showOnlyHomework\" value=\"".$env{'form.showOnlyHomework'}."\" />
<input type=\"submit\" value=\"".&mt('Sort by:')."\" />
<select name=\"sort\">
<option value=\"default\" $selected{'default'}>".&mt('Default')."</option>
<option value=\"title\" $selected{'title'} >".&mt('Title')."</option>
<option value=\"duedate\" $selected{'duedate'}>".&mt('Duedate')."</option>
<option value=\"discussion\" $selected{'discussion'}>".&mt('Has New Discussion')."</option>
</select>
</nobr>
</form>");
# renderer call
my $renderArgs = { 'cols' => [0,1,2,3],
'sort' => $env{'form.sort'},
'url' => '/adm/navmaps',
'navmap' => $navmap,
'suppressNavmap' => 1,
'suppressEmptySequences' => $suppressEmptySequences,
'filterFunc' => $filterFunc,
'resource_no_folder_link' => $resource_no_folder_link,
'sort_html'=> $sort_html,
'r' => $r,
'caller' => 'navmapsdisplay',
'linkitems' => \%toplinkitems};
my $render = render($renderArgs);

# If no resources were printed, print a reassuring message so the
# user knows there was no error.
if ($renderArgs->{'counter'} == 0) {
if ($showOnlyHomework) {
$r->print("<p><font size='+1'>".&mt("All homework is currently completed").".</font></p>");
} else { # both jumpToFirstHomework and normal use the same: course must be empty
$r->print("<p><font size='+1'>This course is empty.</font></p>");
}
}
#my $td=&tv_interval($t0);
#$r->print("<br />$td");

$r->print("</body></html>");
$r->rflush();

return OK;
}

# Convenience functions: Returns a string that adds or subtracts	# Convenience functions: Returns a string that adds or subtracts
# the second argument from the first hash, appropriate for the	# the second argument from the first hash, appropriate for the
# query string that determines which folders to recurse on	# query string that determines which folders to recurse on
Line 472 sub getLinkForResource {	Line 149 sub getLinkForResource {
if (defined($res)) {	if (defined($res)) {
my $anchor;	my $anchor;
if ($res->is_page()) {	if ($res->is_page()) {
foreach (@$stack) { if (defined($_)) { $anchor = $_; } }	foreach my $item (@$stack) { if (defined($item)) { $anchor = $item; } }
$anchor=&Apache::lonnet::escape($anchor->shown_symb());	$anchor=&escape($anchor->shown_symb());
return ($res->link(),$res->shown_symb(),$anchor);	return ($res->link(),$res->shown_symb(),$anchor);
}	}
# in case folder was skipped over as "only sequence"	# in case folder was skipped over as "only sequence"
my ($map,$id,$src)=&Apache::lonnet::decode_symb($res->symb());	my ($map,$id,$src)=&Apache::lonnet::decode_symb($res->symb());
if ($map=~/\.page$/) {	if ($map=~/\.page$/) {
my $url=&Apache::lonnet::clutter($map);	my $url=&Apache::lonnet::clutter($map);
$anchor=&Apache::lonnet::escape($src->shown_symb());	$anchor=&escape($src->shown_symb());
return ($url,$res->shown_symb(),$anchor);	return ($url,$res->shown_symb(),$anchor);
}	}
}	}
Line 490 sub getLinkForResource {	Line 167 sub getLinkForResource {
# (when we first recurse on a map, it puts an undefined resource	# (when we first recurse on a map, it puts an undefined resource
# on the bottom because $self->{HERE} isn't defined yet, and we	# on the bottom because $self->{HERE} isn't defined yet, and we
# want the src for the map anyhow)	# want the src for the map anyhow)
foreach (@$stack) {	foreach my $item (@$stack) {
if (defined($_)) { $res = $_; }	if (defined($item)) { $res = $item; }
}	}

return ($res->link(),$res->shown_symb());	return ($res->link(),$res->shown_symb());
Line 530 sub getDescription {	Line 207 sub getDescription {
if ($status == $res->PAST_DUE_NO_ANSWER) {	if ($status == $res->PAST_DUE_NO_ANSWER) {
return &mt("Was due")." " . timeToHumanString($res->duedate($part),'end');	return &mt("Was due")." " . timeToHumanString($res->duedate($part),'end');
}	}
if ($status == $res->ANSWER_OPEN \|\| $status == $res->PARTIALLY_CORRECT) {	if (($status == $res->ANSWER_OPEN \|\| $status == $res->PARTIALLY_CORRECT)
	&& $res->handgrade($part) ne 'yes') {
return &mt("Answer available");	return &mt("Answer available");
}	}
if ($status == $res->EXCUSED) {	if ($status == $res->EXCUSED) {
Line 682 sub timeToHumanString {	Line 360 sub timeToHumanString {

if($format ne '') {	if($format ne '') {
my $timeStr = strftime($format, localtime($time));	my $timeStr = strftime($format, localtime($time));
return $timeStr.&Apache::lonlocal::gettimezone();	return $timeStr.&Apache::lonlocal::gettimezone($time);
}	}

# Less then 5 days away, display day of the week and	# Less then 5 days away, display day of the week and
Line 693 sub timeToHumanString {	Line 371 sub timeToHumanString {
$timeStr =~ s/12:00 am/00:00/;	$timeStr =~ s/12:00 am/00:00/;
$timeStr =~ s/12:00 pm/noon/;	$timeStr =~ s/12:00 pm/noon/;
return ($inPast ? "last " : "this ") .	return ($inPast ? "last " : "this ") .
$timeStr.&Apache::lonlocal::gettimezone();	$timeStr.&Apache::lonlocal::gettimezone($time);
}	}

my $conjunction='on';	my $conjunction='on';
Line 708 sub timeToHumanString {	Line 386 sub timeToHumanString {
my $timeStr = strftime("$conjunction %A, %b %e at %I:%M %P", localtime($time));	my $timeStr = strftime("$conjunction %A, %b %e at %I:%M %P", localtime($time));
$timeStr =~ s/12:00 am/00:00/;	$timeStr =~ s/12:00 am/00:00/;
$timeStr =~ s/12:00 pm/noon/;	$timeStr =~ s/12:00 pm/noon/;
return $timeStr.&Apache::lonlocal::gettimezone();	return $timeStr.&Apache::lonlocal::gettimezone($time);
}	}

# Not this year, so show the year	# Not this year, so show the year
my $timeStr = strftime("$conjunction %A, %b %e %Y at %I:%M %P", localtime($time));	my $timeStr = strftime("$conjunction %A, %b %e %Y at %I:%M %P", localtime($time));
$timeStr =~ s/12:00 am/00:00/;	$timeStr =~ s/12:00 am/00:00/;
$timeStr =~ s/12:00 pm/noon/;	$timeStr =~ s/12:00 pm/noon/;
return $timeStr.&Apache::lonlocal::gettimezone();	return $timeStr.&Apache::lonlocal::gettimezone($time);
}	}
}	}

Line 1094 sub render_resource {	Line 772 sub render_resource {

if ($resource->is_problem()) {	if ($resource->is_problem()) {
if ($part eq '0' \|\| $params->{'condensed'}) {	if ($part eq '0' \|\| $params->{'condensed'}) {
$icon ='<img src="'.$location.'/problem.gif" alt="  " border="0" />';	$icon = '<img src="'.$location.'/';
	if ($resource->is_task()) {
	$icon .= 'task.gif" alt="'.&mt('Task');
	} else {
	$icon .= 'problem.gif" alt="'.&mt('Problem');
	}
	$icon .='" border="0" />';
} else {	} else {
$icon = $params->{'indentString'};	$icon = $params->{'indentString'};
}	}
Line 1111 sub render_resource {	Line 795 sub render_resource {
}	}

my $folderType = $resource->is_sequence() ? 'folder' : 'page';	my $folderType = $resource->is_sequence() ? 'folder' : 'page';
	my $title=$resource->title;
	$title=~s/\"/\"/g;
if (!$params->{'resource_no_folder_link'}) {	if (!$params->{'resource_no_folder_link'}) {
$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';	$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';
$icon = "<img src='$location/$icon' alt='".	$icon = "<img src='$location/$icon' alt=\"".
($nowOpen ? 'Open Folder' : 'Close Folder')."' border='0' />";	($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" border='0' />";

$linkopen = "<a href=\"" . $params->{'url'} . '?' .	$linkopen = "<a href=\"" . $params->{'url'} . '?' .
$params->{'queryString'} . '&filter=';	$params->{'queryString'} . '&filter=';
$linkopen .= ($nowOpen xor $it->{CONDITION}) ?	$linkopen .= ($nowOpen xor $it->{CONDITION}) ?
addToFilter($filter, $mapId) :	addToFilter($filter, $mapId) :
removeFromFilter($filter, $mapId);	removeFromFilter($filter, $mapId);
$linkopen .= "&condition=" . $it->{CONDITION} . '&hereType='	$linkopen .= "&condition=" . $it->{CONDITION} . '&hereType='
. $params->{'hereType'} . '&here=' .	. $params->{'hereType'} . '&here=' .
&Apache::lonnet::escape($params->{'here'}) .	&escape($params->{'here'}) .
'&jump=' .	'&jump=' .
&Apache::lonnet::escape($resource->symb()) .	&escape($resource->symb()) .
"&folderManip=1\">";	"&folderManip=1\">";

} else {	} else {
# Don't allow users to manipulate folder	# Don't allow users to manipulate folder
$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') .	$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') .
'.nomanip.gif';	'.nomanip.gif';
$icon = "<img src='$location/$icon' alt='".	$icon = "<img src='$location/$icon' alt=\"".
($nowOpen ? 'Open Folder' : 'Close Folder')."' border='0' />";	($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" border='0' />";

$linkopen = "";	$linkopen = "";
$linkclose = "";	$linkclose = "";
Line 1142 sub render_resource {	Line 827 sub render_resource {
}	}

if ($resource->randomout()) {	if ($resource->randomout()) {
$nonLinkedText .= ' <i>(hidden)</i> ';	$nonLinkedText .= ' <i>('.&mt('hidden').')</i> ';
}	}
if (!$resource->condval()) {	if (!$resource->condval()) {
$nonLinkedText .= ' <i>(conditionally hidden)</i> ';	$nonLinkedText .= ' <i>('.&mt('conditionally hidden').')</i> ';
}	}

# We're done preparing and finally ready to start the rendering	# We're done preparing and finally ready to start the rendering
my $result = "<td align='left' valign='center'>";	my $result = "<td align='left' valign='middle'>";

my $indentLevel = $params->{'indentLevel'};	my $indentLevel = $params->{'indentLevel'};
if ($newBranchText) { $indentLevel--; }	if ($newBranchText) { $indentLevel--; }
Line 1177 sub render_resource {	Line 862 sub render_resource {
if ($resource->is_problem() && $part ne '0' &&	if ($resource->is_problem() && $part ne '0' &&
!$params->{'condensed'}) {	!$params->{'condensed'}) {
my $displaypart=$resource->part_display($part);	my $displaypart=$resource->part_display($part);
$partLabel = " (Part: $displaypart)";	$partLabel = " (".&mt('Part: [_1]', $displaypart).")";
if ($link!~/\#/) { $link.='#'.&Apache::lonnet::escape($part); }	if ($link!~/\#/) { $link.='#'.&escape($part); }
$title = "";	$title = "";
}	}

if ($params->{'condensed'} && $resource->countParts() > 1) {	if ($params->{'condensed'} && $resource->countParts() > 1) {
$nonLinkedText .= ' (' . $resource->countParts() . ' parts)';	$nonLinkedText .= ' ('.&mt('[_1] parts', $resource->countParts()).')';
}	}

my $target;	my $target;
Line 1213 sub render_communication_status {	Line 898 sub render_communication_status {
my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");	my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");
if ($resource->hasDiscussion()) {	if ($resource->hasDiscussion()) {
$discussionHTML = $linkopen .	$discussionHTML = $linkopen .
'<img border="0" src="'.$location.'/chat.gif" />' .	'<img alt="'.&mt('New Discussion').'" border="0" src="'.$location.'/chat.gif" />' .
$linkclose;	$linkclose;
}	}

if ($resource->getFeedback()) {	if ($resource->getFeedback()) {
my $feedback = $resource->getFeedback();	my $feedback = $resource->getFeedback();
foreach (split(/\,/, $feedback)) {	foreach my $msgid (split(/\,/, $feedback)) {
if ($_) {	if ($msgid) {
$feedbackHTML .= ' <a '.$target.' href="/adm/email?display='	$feedbackHTML .= ' <a '.$target.' href="/adm/email?display='
. &Apache::lonnet::escape($_) . '">'	. &escape($msgid) . '">'
. '<img src="'.$location.'/feedback.gif" '	. '<img alt="'.&mt('New Email').'" src="'.$location.'/feedback.gif" '
. 'border="0" /></a>';	. 'border="0" /></a>';
}	}
}	}
Line 1232 sub render_communication_status {	Line 917 sub render_communication_status {
if ($resource->getErrors()) {	if ($resource->getErrors()) {
my $errors = $resource->getErrors();	my $errors = $resource->getErrors();
my $errorcount = 0;	my $errorcount = 0;
foreach (split(/,/, $errors)) {	foreach my $msgid (split(/,/, $errors)) {
last if ($errorcount>=10); # Only output 10 bombs maximum	last if ($errorcount>=10); # Only output 10 bombs maximum
if ($_) {	if ($msgid) {
$errorcount++;	$errorcount++;
$errorHTML .= ' <a '.$target.' href="/adm/email?display='	$errorHTML .= ' <a '.$target.' href="/adm/email?display='
. &Apache::lonnet::escape($_) . '">'	. &escape($msgid) . '">'
. '<img src="'.$location.'/bomb.gif" '	. '<img alt="'.&mt('New Error').'" src="'.$location.'/bomb.gif" '
. 'border="0" /></a>';	. 'border="0" /></a>';
}	}
}	}
Line 1248 sub render_communication_status {	Line 933 sub render_communication_status {
$discussionHTML = $feedbackHTML = $errorHTML = '';	$discussionHTML = $feedbackHTML = $errorHTML = '';
}	}

return "<td width=\"75\" align=\"left\" valign=\"center\">$discussionHTML$feedbackHTML$errorHTML </td>";	return "<td width=\"75\" align=\"left\" valign=\"middle\">$discussionHTML$feedbackHTML$errorHTML </td>";

}	}
sub render_quick_status {	sub render_quick_status {
Line 1273 sub render_quick_status {	Line 958 sub render_quick_status {
if ($icon) {	if ($icon) {
my $location=	my $location=
&Apache::loncommon::lonhttpdurl("/adm/lonIcons/$icon");	&Apache::loncommon::lonhttpdurl("/adm/lonIcons/$icon");
$result .= "<td width='30' valign='center' width='50' align='right'>$linkopen<img width='25' height='25' src='$location' border='0' alt='$alt' />$linkclose</td>\n";	$result .= "<td valign='middle' width='50' align='right'>$linkopen<img width='25' height='25' src='$location' border='0' alt='$alt' />$linkclose</td>\n";
} else {	} else {
$result .= "<td width='30'> </td>\n";	$result .= "<td width='30'> </td>\n";
}	}
Line 1285 sub render_quick_status {	Line 970 sub render_quick_status {
}	}
sub render_long_status {	sub render_long_status {
my ($resource, $part, $params) = @_;	my ($resource, $part, $params) = @_;
my $result = "<td align='right' valign='center'>\n";	my $result = "<td align='right' valign='middle'>\n";
my $firstDisplayed = !$params->{'condensed'} &&	my $firstDisplayed = !$params->{'condensed'} &&
$params->{'multipart'} && $part eq "0";	$params->{'multipart'} && $part eq "0";

Line 1441 sub render {	Line 1126 sub render {
# marker	# marker
my $filterHash = {};	my $filterHash = {};
# Figure out what we're not displaying	# Figure out what we're not displaying
foreach (split(/\,/, $env{"form.filter"})) {	foreach my $item (split(/\,/, $env{"form.filter"})) {
if ($_) {	if ($item) {
$filterHash->{$_} = "1";	$filterHash->{$item} = "1";
}	}
}	}

Line 1471 sub render {	Line 1156 sub render {
$navmap = Apache::lonnavmaps::navmap->new();	$navmap = Apache::lonnavmaps::navmap->new();
if (!defined($navmap)) {	if (!defined($navmap)) {
# no londer in course	# no londer in course
return '<font color="red">No course selected</font><br />	return '<span class="LC_error">'.&mt('No course selected').'</span><br />
<a href="/adm/roles">Select a course</a><br />';	<a href="/adm/roles">'.&mt('Select a course').'</a><br />';
}	}
}	}

Line 1609 sub render {	Line 1294 sub render {
if ($printCloseAll && !$args->{'resource_no_folder_link'}) {	if ($printCloseAll && !$args->{'resource_no_folder_link'}) {
my ($link,$text);	my ($link,$text);
if ($condition) {	if ($condition) {
$link='"navmaps?condition=0&filter=&'.$queryString.	$link='"navmaps?condition=0&filter=&'.$queryString.
'&here='.&Apache::lonnet::escape($here).'"';	'&here='.&escape($here).'"';
$text='Close All Folders';	$text='Close all folders';
} else {	} else {
$link='"navmaps?condition=1&filter=&'.$queryString.	$link='"navmaps?condition=1&filter=&'.$queryString.
'&here='.&Apache::lonnet::escape($here).'"';	'&here='.&escape($here).'"';
$text='Open All Folders';	$text='Open all folders';
}	}
if ($args->{'caller'} eq 'navmapsdisplay') {	if ($args->{'caller'} eq 'navmapsdisplay') {
&add_linkitem($args->{'linkitems'},'changefolder',	&add_linkitem($args->{'linkitems'},'changefolder',
Line 1660 END	Line 1345 END

if ($args->{'caller'} eq 'navmapsdisplay') {	if ($args->{'caller'} eq 'navmapsdisplay') {
$result .= '<table><tr><td>'.	$result .= '<table><tr><td>'.
&Apache::loncommon::help_open_menu('','Navigation Screen','Navigation_Screen','',undef,'RAT').'</td>';	&Apache::loncommon::help_open_menu('Navigation Screen','Navigation_Screen',undef,'RAT').'</td>';
if ($env{'environment.remotenavmap'} ne 'on') {	if ($env{'environment.remotenavmap'} ne 'on') {
$result .= '<td> </td>';	$result .= '<td> </td>';
} else {	} else {
Line 1925 END	Line 1610 END
my $srcHasQuestion = $src =~ /\?/;	my $srcHasQuestion = $src =~ /\?/;
$args->{"resourceLink"} = $src.	$args->{"resourceLink"} = $src.
($srcHasQuestion?'&':'?') .	($srcHasQuestion?'&':'?') .
'symb=' . &Apache::lonnet::escape($symb).$anchor;	'symb=' . &escape($symb).$anchor;
}	}
# Now, we've decided what parts to show. Loop through them and	# Now, we've decided what parts to show. Loop through them and
# show them.	# show them.
Line 2065 In order of increasing complexity and po	Line 1750 In order of increasing complexity and po

=over 4	=over 4

=item * C<$navmap-E<gt>getByX>, where X is B<Id>, B<Symb>, B<Url> or B<MapPc>. This provides	=item * C<$navmap-E<gt>getByX>, where X is B<Id>, B<Symb> or B<MapPc> and getResourceByUrl. This provides
various ways to obtain resource objects, based on various identifiers.	various ways to obtain resource objects, based on various identifiers.
Use this when you want to request information about one object or	Use this when you want to request information about one object or
a handful of resources you already know the identities of, from some	a handful of resources you already know the identities of, from some
other source. For more about Ids, Symbs, and MapPcs, see the	other source. For more about Ids, Symbs, and MapPcs, see the
Resource documentation. Note that Url should be a B<last resort>,	Resource documentation. Note that Url should be a B<last resort>,
not your first choice; it only works when there is only one	not your first choice; it only really works when there is only one
instance of the resource in the course, which only applies to	instance of the resource in the course, which only applies to
maps, and even that may change in the future.	maps, and even that may change in the future (see the B<getResourceByUrl>
	documentation for more details.)

=item * C<my @resources = $navmap-E<gt>retrieveResources(args)>. This	=item * C<my @resources = $navmap-E<gt>retrieveResources(args)>. This
retrieves resources matching some criterion and returns them	retrieves resources matching some criterion and returns them
Line 2215 sub generate_email_discuss_status {	Line 1901 sub generate_email_discuss_status {
my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',	my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',
$env{'user.domain'},$env{'user.name'},'lastread');	$env{'user.domain'},$env{'user.name'},'lastread');
my %lastreadtime = ();	my %lastreadtime = ();
foreach (keys %lastread) {	foreach my $key (keys %lastread) {
my $key = $_;	my $shortkey = $key;
$key =~ s/_lastread$//;	$shortkey =~ s/_lastread$//;
$lastreadtime{$key} = $lastread{$_};	$lastreadtime{$shortkey} = $lastread{$key};
}	}

my %feedback=();	my %feedback=();
Line 2228 sub generate_email_discuss_status {	Line 1914 sub generate_email_discuss_status {

foreach my $msgid (@keys) {	foreach my $msgid (@keys) {
if ((!$emailstatus{$msgid}) \|\| ($emailstatus{$msgid} eq 'new')) {	if ((!$emailstatus{$msgid}) \|\| ($emailstatus{$msgid} eq 'new')) {
my $plain=	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));	$symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
if ($plain=~/ \[([^\]]+)\]\:/) {	if (defined($symb)) {
my $url=$1;	if (defined($error) && $error == 1) {
if ($plain=~/\:Error \[/) {	$error{$symb}.=','.$msgid;
$error{$url}.=','.$msgid;	} else {
} else {	$feedback{$symb}.=','.$msgid;
$feedback{$url}.=','.$msgid;	}
}	} else {
}	my $plain=
	&LONCAPA::unescape(&LONCAPA::unescape($msgid));
	if ($plain=~/ \[([^\]]+)\]\:/) {
	my $url=$1;
	if ($plain=~/\:Error \[/) {
	$error{$url}.=','.$msgid;
	} else {
	$feedback{$url}.=','.$msgid;
	}
	}
	}
}	}
}	}

#url's of resources that have feedbacks	#symbs of resources that have feedbacks (will be urls pre-2.3)
$self->{FEEDBACK} = \%feedback;	$self->{FEEDBACK} = \%feedback;
#or errors	#or errors (will be urls pre 2.3)
$self->{ERROR_MSG} = \%error;	$self->{ERROR_MSG} = \%error;
$self->{DISCUSSION_TIME} = \%discussiontime;	$self->{DISCUSSION_TIME} = \%discussiontime;
$self->{EMAIL_STATUS} = \%emailstatus;	$self->{EMAIL_STATUS} = \%emailstatus;
Line 2265 sub get_user_data {	Line 1961 sub get_user_data {
$self->{RETRIEVED_USER_DATA} = 1;	$self->{RETRIEVED_USER_DATA} = 1;
}	}

	sub get_discussion_data {
	my $self = shift;
	if ($self->{RETRIEVED_DISCUSSION_DATA}) {
	return $self->{DISCUSSION_DATA};
	}

	$self->generate_email_discuss_status();

	my $cid=$env{'request.course.id'};
	my $cdom=$env{'course.'.$cid.'.domain'};
	my $cnum=$env{'course.'.$cid.'.num'};
	# Retrieve discussion data for resources in course
	my %discussion_data = &Apache::lonnet::dumpstore($cid,$cdom,$cnum);


	$self->{DISCUSSION_DATA} = \%discussion_data;
	$self->{RETRIEVED_DISCUSSION_DATA} = 1;
	return $self->{DISCUSSION_DATA};
	}


# Internal function: Takes a key to look up in the nav hash and implements internal	# Internal function: Takes a key to look up in the nav hash and implements internal
# memory caching of that key.	# memory caching of that key.
sub navhash {	sub navhash {
Line 2320 sub hasDiscussion {	Line 2037 sub hasDiscussion {
}	}
}	}

	sub last_post_time {
	my $self = shift;
	my $symb = shift;
	my $ressymb = $self->wrap_symb($symb);
	return $self->{DISCUSSION_TIME}->{$ressymb};
	}

	sub discussion_info {
	my $self = shift;
	my $symb = shift;
	my $filter = shift;

	$self->get_discussion_data();

	my $ressymb = $self->wrap_symb($symb);
	# keys used to store bulletinboard postings use 'unwrapped' symb.
	my $discsymb = $self->unwrap_symb($ressymb);
	my $version = $self->{DISCUSSION_DATA}{'version:'.$discsymb};
	if (!$version) { return; }

	my $prevread = $self->{LAST_READ}{$ressymb};

	my $count = 0;
	my $hiddenflag = 0;
	my $deletedflag = 0;
	my ($hidden,$deleted,%info);

	for (my $id=$version; $id>0; $id--) {
	my $vkeys=$self->{DISCUSSION_DATA}{$id.':keys:'.$discsymb};
	my @keys=split(/:/,$vkeys);
	if (grep(/^hidden$/ ,@keys)) {
	if (!$hiddenflag) {
	$hidden = $self->{DISCUSSION_DATA}{$id.':'.$discsymb.':hidden'};
	$hiddenflag = 1;
	}
	} elsif (grep(/^deleted$/,@keys)) {
	if (!$deletedflag) {
	$deleted = $self->{DISCUSSION_DATA}{$id.':'.$discsymb.':deleted'};
	$deletedflag = 1;
	}
	} else {
	if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
	if ($filter eq 'unread') {
	if ($prevread >= $self->{DISCUSSION_DATA}{$id.':'.$discsymb.':timestamp'}) {
	next;
	}
	}
	$count++;
	$info{$count}{'subject'} =
	$self->{DISCUSSION_DATA}{$id.':'.$discsymb.':subject'};
	$info{$count}{'id'} = $id;
	$info{$count}{'timestamp'} = $self->{DISCUSSION_DATA}{$id.':'.$discsymb.':timestamp'};
	}
	}
	}
	if (wantarray) {
	return ($count,%info);
	}
	return $count;
	}

sub wrap_symb {	sub wrap_symb {
my $self = shift;	my $self = shift;
my $symb = shift;	my $symb = shift;
if ($symb =~ m-___(adm/\w+/\w+/)(\d+)(/bulletinboard)$-) {	if ($symb =~ m-___(adm/[^/]+/[^/]+/)(\d+)(/bulletinboard)$-) {
unless ($symb =~ m\|adm/wrapper/adm\|) {	unless ($symb =~ m\|adm/wrapper/adm\|) {
$symb = 'bulletin___'.$2.'___adm/wrapper/'.$1.$2.$3;	$symb = 'bulletin___'.$2.'___adm/wrapper/'.$1.$2.$3;
}	}
Line 2331 sub wrap_symb {	Line 2109 sub wrap_symb {
return $symb;	return $symb;
}	}

	sub unwrap_symb {
	my $self = shift;
	my $ressymb = shift;
	my $discsymb = $ressymb;
	if ($ressymb =~ m-^(bulletin___\d+___)adm/wrapper/(adm/[^/]+/[^/]+/\d+/bulletinboard)$-) {
	$discsymb = $1.$2;
	}
	return $discsymb;
	}

# Private method: Does the given resource (as a symb string) have	# Private method: Does the given resource (as a symb string) have
# current feedback? Returns the string in the feedback hash, which	# current feedback? Returns the string in the feedback hash, which
# will be false if it does not exist.	# will be false if it does not exist.
Line 2338 sub wrap_symb {	Line 2126 sub wrap_symb {
sub getFeedback {	sub getFeedback {
my $self = shift;	my $self = shift;
my $symb = shift;	my $symb = shift;
	my $source = shift;

$self->generate_email_discuss_status();	$self->generate_email_discuss_status();

if (!defined($self->{FEEDBACK})) { return ""; }	if (!defined($self->{FEEDBACK})) { return ""; }

return $self->{FEEDBACK}->{$symb};	my $feedback;
	if ($self->{FEEDBACK}->{$symb}) {
	$feedback = $self->{FEEDBACK}->{$symb};
	if ($self->{FEEDBACK}->{$source}) {
	$feedback .= ','.$self->{FEEDBACK}->{$source};
	}
	} else {
	if ($self->{FEEDBACK}->{$source}) {
	$feedback = $self->{FEEDBACK}->{$source};
	}
	}
	return $feedback;
}	}

# Private method: Get the errors for that resource (by source).	# Private method: Get the errors for that resource (by source).
sub getErrors {	sub getErrors {
my $self = shift;	my $self = shift;
	my $symb = shift;
my $src = shift;	my $src = shift;

$self->generate_email_discuss_status();	$self->generate_email_discuss_status();

if (!defined($self->{ERROR_MSG})) { return ""; }	if (!defined($self->{ERROR_MSG})) { return ""; }
return $self->{ERROR_MSG}->{$src};
	my $errors;
	if ($self->{ERROR_MSG}->{$symb}) {
	$errors = $self->{ERROR_MSG}->{$symb};
	if ($self->{ERROR_MSG}->{$src}) {
	$errors .= ','.$self->{ERROR_MSG}->{$src};
	}
	} else {
	if ($self->{ERROR_MSG}->{$src}) {
	$errors = $self->{ERROR_MSG}->{$src};
	}
	}
	return $errors;
}	}

=pod	=pod
Line 2475 sub parmval_real {	Line 2288 sub parmval_real {

my $cid=$env{'request.course.id'};	my $cid=$env{'request.course.id'};
my $csec=$env{'request.course.sec'};	my $csec=$env{'request.course.sec'};
	my $cgroup='';
	my @cgrps=split(/:/,$env{'request.course.groups'});
	if (@cgrps > 0) {
	@cgrps = sort(@cgrps);
	$cgroup = $cgrps[0];
	}
my $uname=$env{'user.name'};	my $uname=$env{'user.name'};
my $udom=$env{'user.domain'};	my $udom=$env{'user.domain'};

Line 2482 sub parmval_real {	Line 2301 sub parmval_real {
my $result='';	my $result='';

my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);	my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
	$mapname = &Apache::lonnet::deversion($mapname);
# ----------------------------------------------------- Cascading lookup scheme	# ----------------------------------------------------- Cascading lookup scheme
my $rwhat=$what;	my $rwhat=$what;
$what=~s/^parameter\_//;	$what=~s/^parameter\_//;
Line 2492 sub parmval_real {	Line 2311 sub parmval_real {
my $mapparm=$mapname.'___(all).'.$what;	my $mapparm=$mapname.'___(all).'.$what;
my $usercourseprefix=$cid;	my $usercourseprefix=$cid;

	my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;
	my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;
	my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;

my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;	my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;	my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;	my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;
Line 2512 sub parmval_real {	Line 2335 sub parmval_real {
}	}

# ------------------------------------------------------- second, check course	# ------------------------------------------------------- second, check course
	if ($cgroup ne '' and defined($courseopt)) {
	if (defined($$courseopt{$grplevelr})) { return $$courseopt{$grplevelr}; }
	if (defined($$courseopt{$grplevelm})) { return $$courseopt{$grplevelm}; }
	if (defined($$courseopt{$grplevel})) { return $$courseopt{$grplevel}; }
	}

if ($csec and defined($courseopt)) {	if ($csec and defined($courseopt)) {
if (defined($$courseopt{$seclevelr})) { return $$courseopt{$seclevelr}; }	if (defined($$courseopt{$seclevelr})) { return $$courseopt{$seclevelr}; }
if (defined($$courseopt{$seclevelm})) { return $$courseopt{$seclevelm}; }	if (defined($$courseopt{$seclevelm})) { return $$courseopt{$seclevelm}; }
Line 2718 sub usedVersion {	Line 2547 sub usedVersion {
1;	1;

package Apache::lonnavmaps::iterator;	package Apache::lonnavmaps::iterator;
use WeakRef;	use Scalar::Util qw(weaken);
use Apache::lonnet;	use Apache::lonnet;

=pod	=pod
Line 3199 sub populateStack {	Line 3028 sub populateStack {
1;	1;

package Apache::lonnavmaps::DFSiterator;	package Apache::lonnavmaps::DFSiterator;
use WeakRef;	use Scalar::Util qw(weaken);
use Apache::lonnet;	use Apache::lonnet;

# Not documented in the perldoc: This is a simple iterator that just walks	# Not documented in the perldoc: This is a simple iterator that just walks
Line 3328 sub next {	Line 3157 sub next {

# filter the next possibilities to remove things we've	# filter the next possibilities to remove things we've
# already seen.	# already seen.
foreach (@$nextUnfiltered) {	foreach my $item (@$nextUnfiltered) {
if (!defined($self->{ALREADY_SEEN}->{$_->{ID}})) {	if (!defined($self->{ALREADY_SEEN}->{$item->{ID}})) {
push @$next, $_;	push @$next, $item;
}	}
}	}

Line 3383 sub populateStack {	Line 3212 sub populateStack {
1;	1;

package Apache::lonnavmaps::resource;	package Apache::lonnavmaps::resource;
use WeakRef;	use Scalar::Util qw(weaken);
use Apache::lonnet;	use Apache::lonnet;

=pod	=pod
Line 3562 sub kind { my $self=shift; return $self-	Line 3391 sub kind { my $self=shift; return $self-
sub randomout { my $self=shift; return $self->navHash("randomout_", 1); }	sub randomout { my $self=shift; return $self->navHash("randomout_", 1); }
sub randompick {	sub randompick {
my $self = shift;	my $self = shift;
return $self->{NAV_MAP}->{PARM_HASH}->{$self->symb .	return $self->parmval('randompick');
'.0.parameter_randompick'};
}	}
sub link {	sub link {
my $self=shift;	my $self=shift;
Line 3621 sub condition {	Line 3449 sub condition {
}	}
sub condval {	sub condval {
my $self=shift;	my $self=shift;
my $uri=&Apache::lonnet::deversion(&Apache::lonnet::declutter($self->src()));	my ($pathname,$filename) =
my ($pathname,$filename)=($uri=~m\|(.)/([^/])\|);	&Apache::lonnet::split_uri_for_cond($self->src());
$pathname=~s/^adm\/wrapper\///;

my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~	my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
/\&\Q$filename\E\:([\d\\|]+)\&/);	/\&\Q$filename\E\:([\d\\|]+)\&/);
Line 3682 sub retrieveResources {	Line 3509 sub retrieveResources {
return $self->{NAV_MAP}->retrieveResources(@_);	return $self->{NAV_MAP}->retrieveResources(@_);
}	}

	sub is_exam {
	my ($self,$part) = @_;
	if ($self->parmval('type',$part) eq 'exam') {
	return 1;
	}
	if ($self->src() =~ /\.(exam)$/) {
	return 1;
	}
	return 0;
	}
sub is_html {	sub is_html {
my $self=shift;	my $self=shift;
my $src = $self->src();	my $src = $self->src();
Line 3694 sub is_page {	Line 3531 sub is_page {
return $self->navHash("is_map_", 1) &&	return $self->navHash("is_map_", 1) &&
$self->navHash("map_type_" . $self->map_pc()) eq 'page';	$self->navHash("map_type_" . $self->map_pc()) eq 'page';
}	}
	sub is_practice {
	my $self=shift;
	my ($part) = @_;
	if ($self->parmval('type',$part) eq 'practice') {
	return 1;
	}
	return 0;
	}
sub is_problem {	sub is_problem {
my $self=shift;	my $self=shift;
my $src = $self->src();	my $src = $self->src();
return ($src =~ /\.(problem\|exam\|quiz\|assess\|survey\|form\|library\|task)$/)	if ($src =~ /\.(problem\|exam\|quiz\|assess\|survey\|form\|library\|task)$/) {
	return !($self->is_practice());
	}
	return 0;
}	}
sub contains_problem {	sub contains_problem {
my $self=shift;	my $self=shift;
Line 3709 sub contains_problem {	Line 3557 sub contains_problem {
}	}
sub is_sequence {	sub is_sequence {
my $self=shift;	my $self=shift;
my $src = $self->src();
return $self->navHash("is_map_", 1) &&	return $self->navHash("is_map_", 1) &&
$self->navHash("map_type_" . $self->map_pc()) eq 'sequence';	$self->navHash("map_type_" . $self->map_pc()) eq 'sequence';
}	}
Line 3724 sub is_survey {	Line 3571 sub is_survey {
}	}
return 0;	return 0;
}	}
	sub is_task {
	my $self=shift;
	my $src = $self->src();
	return ($src =~ /\.(task)$/)
	}

sub is_empty_sequence {	sub is_empty_sequence {
my $self=shift;	my $self=shift;
Line 3779 Returns a string with the type of the ma	Line 3631 Returns a string with the type of the ma
sub map_finish {	sub map_finish {
my $self = shift;	my $self = shift;
my $src = $self->src();	my $src = $self->src();
$src = Apache::lonnet::clutter($src);	$src = &Apache::lonnet::clutter($src);
my $res = $self->navHash("map_finish_$src", 0);	my $res = $self->navHash("map_finish_$src", 0);
$res = $self->{NAV_MAP}->getById($res);	$res = $self->{NAV_MAP}->getById($res);
return $res;	return $res;
Line 3792 sub map_pc {	Line 3644 sub map_pc {
sub map_start {	sub map_start {
my $self = shift;	my $self = shift;
my $src = $self->src();	my $src = $self->src();
$src = Apache::lonnet::clutter($src);	$src = &Apache::lonnet::clutter($src);
my $res = $self->navHash("map_start_$src", 0);	my $res = $self->navHash("map_start_$src", 0);
$res = $self->{NAV_MAP}->getById($res);	$res = $self->{NAV_MAP}->getById($res);
return $res;	return $res;
Line 3904 sub awarded {	Line 3756 sub awarded {
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.awarded'};	return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.awarded'};
}	}
	# this should work exactly like the copy in lonhomework.pm
sub duedate {	sub duedate {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
	my $date;
my $interval=$self->parmval("interval", $part);	my $interval=$self->parmval("interval", $part);
if ($interval) {	my $due_date=$self->parmval("duedate", $part);
	if ($interval =~ /\d+/) {
my $first_access=&Apache::lonnet::get_first_access('map',$self->symb);	my $first_access=&Apache::lonnet::get_first_access('map',$self->symb);
if ($first_access) { return ($first_access+$interval); }	if (defined($first_access)) {
	$interval = $first_access+$interval;
	$date = ($interval < $due_date)? $interval : $due_date;
	} else {
	$date = $due_date;
	}
	} else {
	$date = $due_date;
}	}
return $self->parmval("duedate", $part);	return $date;
}	}
sub handgrade {	sub handgrade {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
Line 4008 Returns a false value if there has been	Line 3870 Returns a false value if there has been
logged in, true if there has. Always returns false if the discussion	logged in, true if there has. Always returns false if the discussion
data was not extracted when the nav map was constructed.	data was not extracted when the nav map was constructed.

	=item * B<last_post_time>:

	Returns a false value if there hasn't been discussion otherwise returns
	unix timestamp of last time a discussion posting (or edit) was made.

	=item * B<discussion_info>:

	optional argument is a filter (currently can be 'unread');
	returns in scalar context the count of the number of discussion postings.

	returns in list context both the count of postings and a hash ref
	containing information about the postings (subject, id, timestamp) in a hash.

	Default is to return counts for all postings. However if called with a second argument set to 'unread', will return information about only unread postings.

=item * B<getFeedback>:	=item * B<getFeedback>:

Gets the feedback for the resource and returns the raw feedback string	Gets the feedback for the resource and returns the raw feedback string
Line 4015 for the resource, or the null string if	Line 3892 for the resource, or the null string if
email data was not extracted when the nav map was constructed. Usually	email data was not extracted when the nav map was constructed. Usually
used like this:	used like this:

for (split(/\,/, $res->getFeedback())) {	for my $url (split(/\,/, $res->getFeedback())) {
my $link = &Apache::lonnet::escape($_);	my $link = &escape($url);
...	...

and use the link as appropriate.	and use the link as appropriate.
Line 4028 sub hasDiscussion {	Line 3905 sub hasDiscussion {
return $self->{NAV_MAP}->hasDiscussion($self->symb());	return $self->{NAV_MAP}->hasDiscussion($self->symb());
}	}

	sub last_post_time {
	my $self = shift;
	return $self->{NAV_MAP}->last_post_time($self->symb());
	}

	sub discussion_info {
	my ($self,$filter) = @_;
	return $self->{NAV_MAP}->discussion_info($self->symb(),$filter);
	}

sub getFeedback {	sub getFeedback {
my $self = shift;	my $self = shift;
my $source = $self->src();	my $source = $self->src();
	my $symb = $self->symb();
if ($source =~ /^\/res\//) { $source = substr $source, 5; }	if ($source =~ /^\/res\//) { $source = substr $source, 5; }
return $self->{NAV_MAP}->getFeedback($source);	return $self->{NAV_MAP}->getFeedback($symb,$source);
}	}

sub getErrors {	sub getErrors {
my $self = shift;	my $self = shift;
my $source = $self->src();	my $source = $self->src();
	my $symb = $self->symb();
if ($source =~ /^\/res\//) { $source = substr $source, 5; }	if ($source =~ /^\/res\//) { $source = substr $source, 5; }
return $self->{NAV_MAP}->getErrors($source);	return $self->{NAV_MAP}->getErrors($symb,$source);
}	}

=pod	=pod
Line 4125 sub countResponses {	Line 4014 sub countResponses {
sub responseTypes {	sub responseTypes {
my $self = shift;	my $self = shift;
my %responses;	my %responses;
foreach my $part ($self->parts()) {	foreach my $part (@{$self->parts()}) {
foreach my $responsetype ($self->responseType($part)) {	foreach my $responsetype ($self->responseType($part)) {
$responses{$responsetype}++ if (defined($responsetype));	$responses{$responsetype}++ if (defined($responsetype));
}	}
Line 4200 sub extractParts {	Line 4089 sub extractParts {
$self->{PART_TYPE} = {};	$self->{PART_TYPE} = {};
return;	return;
}	}
foreach (split(/\,/,$metadata)) {	foreach my $entry (split(/\,/,$metadata)) {
if ($_ =~ /^(?:part\|Task)_(.*)$/) {	if ($entry =~ /^(?:part\|Task)_(.*)$/) {
my $part = $1;	my $part = $1;
# This floods the logs if it blows up	# This floods the logs if it blows up
if (defined($parts{$part})) {	if (defined($parts{$part})) {
Line 4226 sub extractParts {	Line 4115 sub extractParts {


# Init the responseIdHash	# Init the responseIdHash
foreach (@{$self->{PARTS}}) {	foreach my $part (@{$self->{PARTS}}) {
$responseIdHash{$_} = [];	$responseIdHash{$part} = [];
}	}

# Now, the unfortunate thing about this is that parts, part name, and	# Now, the unfortunate thing about this is that parts, part name, and
Line 4236 sub extractParts {	Line 4125 sub extractParts {
# So we have to use our knowlege of part names to figure out	# So we have to use our knowlege of part names to figure out
# where the part names begin and end, and even then, it is possible	# where the part names begin and end, and even then, it is possible
# to construct ambiguous situations.	# to construct ambiguous situations.
foreach (split /,/, $metadata) {	foreach my $data (split /,/, $metadata) {
if ($_ =~ /^([a-zA-Z]+)response_(.*)/) {	if ($data =~ /^([a-zA-Z]+)response_(.*)/
	\|\| $data =~ /^(Task)_(.*)/) {
my $responseType = $1;	my $responseType = $1;
my $partStuff = $2;	my $partStuff = $2;
my $partIdSoFar = '';	my $partIdSoFar = '';
Line 4249 sub extractParts {	Line 4139 sub extractParts {
if ($parts{$partIdSoFar}) {	if ($parts{$partIdSoFar}) {
my @otherChunks = @partChunks[$i+1..$#partChunks];	my @otherChunks = @partChunks[$i+1..$#partChunks];
my $responseId = join('_', @otherChunks);	my $responseId = join('_', @otherChunks);
push @{$responseIdHash{$partIdSoFar}}, $responseId;	if ($self->is_task()) {
push @{$responseTypeHash{$partIdSoFar}}, $responseType;	push(@{$responseIdHash{$partIdSoFar}},
	$partIdSoFar);
	} else {
	push(@{$responseIdHash{$partIdSoFar}},
	$responseId);
	}
	push(@{$responseTypeHash{$partIdSoFar}},
	$responseType);
}	}
}	}
}	}
Line 4299 the completion information.	Line 4196 the completion information.
Idiomatic usage of these two methods would probably look something	Idiomatic usage of these two methods would probably look something
like	like

foreach ($resource->parts()) {	foreach my $part ($resource->parts()) {
my $dateStatus = $resource->getDateStatus($_);	my $dateStatus = $resource->getDateStatus($part);
my $completionStatus = $resource->getCompletionStatus($_);	my $completionStatus = $resource->getCompletionStatus($part);

or	or

my $status = $resource->status($_);	my $status = $resource->status($part);

... use it here ...	... use it here ...
}	}

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.349.2.2
changed lines
	Added in v.1.395