loncom/interface/lonsearchcat.pm - diff

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Diff for /loncom/interface/lonsearchcat.pm between versions 1.225 and 1.249

version 1.225, 2004/05/09 22:55:17	version 1.249, 2005/11/29 20:37:06
Line 63 package Apache::lonsearchcat;	Line 63 package Apache::lonsearchcat;

use strict;	use strict;
use Apache::Constants qw(:common :http);	use Apache::Constants qw(:common :http);
use Apache::lonnet();	use Apache::lonnet;
use Apache::File();	use Apache::File();
use CGI qw(:standard);	use CGI qw(:standard);
use Text::Query;	use Text::Query;
Line 75 use Apache::lonhtmlcommon;	Line 75 use Apache::lonhtmlcommon;
use Apache::lonlocal;	use Apache::lonlocal;
use LONCAPA::lonmetadata();	use LONCAPA::lonmetadata();
use HTML::Entities();	use HTML::Entities();
	use Parse::RecDescent;
	use Apache::lonnavmaps;

######################################################################	######################################################################
######################################################################	######################################################################
Line 142 sub handler {	Line 144 sub handler {
## printing the results. We only need (theoretically) to do	## printing the results. We only need (theoretically) to do
## this once, so the pause indicator is deleted	## this once, so the pause indicator is deleted
##	##
if (exists($ENV{'form.pause'})) {	if (exists($env{'form.pause'})) {
sleep(1);	sleep(1);
delete($ENV{'form.pause'});	delete($env{'form.pause'});
}	}
##	##
## Initialize global variables	## Initialize global variables
##	##
my $domain = $r->dir_config('lonDefDomain');	my $domain = $r->dir_config('lonDefDomain');
$diropendb= "/home/httpd/perl/tmp/".	$diropendb= "/home/httpd/perl/tmp/".
"$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db";	"$env{'user.domain'}_$env{'user.name'}_searchcat.db";
#	#
# set the name of the persistent database	# set the name of the persistent database
# $ENV{'form.persistent_db_id'} can only have digits in it.	# $env{'form.persistent_db_id'} can only have digits in it.
if (! exists($ENV{'form.persistent_db_id'}) \|\|	if (! exists($env{'form.persistent_db_id'}) \|\|
($ENV{'form.persistent_db_id'} =~ /\D/) \|\|	($env{'form.persistent_db_id'} =~ /\D/) \|\|
($ENV{'form.launch'} eq '1')) {	($env{'form.launch'} eq '1')) {
$ENV{'form.persistent_db_id'} = time;	$env{'form.persistent_db_id'} = time;
}	}
$bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	$bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
my $persistent_db_file = "/home/httpd/perl/tmp/".	my $persistent_db_file = "/home/httpd/perl/tmp/".
&Apache::lonnet::escape($domain).	&Apache::lonnet::escape($domain).
'_'.&Apache::lonnet::escape($ENV{'user.name'}).	'_'.&Apache::lonnet::escape($env{'user.name'}).
'_'.$ENV{'form.persistent_db_id'}.'_persistent_search.db';	'_'.$env{'form.persistent_db_id'}.'_persistent_search.db';
##	##
&Apache::lonhtmlcommon::clear_breadcrumbs();	&Apache::lonhtmlcommon::clear_breadcrumbs();
if (exists($ENV{'request.course.id'}) && $ENV{'request.course.id'} ne '') {	if (exists($env{'request.course.id'}) && $env{'request.course.id'} ne '') {
&Apache::lonhtmlcommon::add_breadcrumb	&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/searchcat?'.	({href=>'/adm/searchcat?'.
'catalogmode='.$ENV{'form.catalogmode'}.	'catalogmode='.$env{'form.catalogmode'}.
'&launch='.$ENV{'form.launch'}.	'&launch='.$env{'form.launch'}.
'&mode='.$ENV{'form.mode'},	'&mode='.$env{'form.mode'},
text=>"Course and Catalog Search",	text=>"Course and Catalog Search",
	target=>'_top',
bug=>'Searching',});	bug=>'Searching',});
} else {	} else {
&Apache::lonhtmlcommon::add_breadcrumb	&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/searchcat?'.	({href=>'/adm/searchcat?'.
'catalogmode='.$ENV{'form.catalogmode'}.	'catalogmode='.$env{'form.catalogmode'}.
'&launch='.$ENV{'form.launch'}.	'&launch='.$env{'form.launch'}.
'&mode='.$ENV{'form.mode'},	'&mode='.$env{'form.mode'},
text=>"Catalog Search",	text=>"Catalog Search",
	target=>'_top',
bug=>'Searching',});	bug=>'Searching',});
}	}
#	#
if ($ENV{'form.phase'} !~ m/(basic\|adv\|course)_search/) {	if ($env{'form.phase'} !~ m/(basic\|adv\|course)_search/) {
if (! &get_persistent_form_data($persistent_db_file)) {	if (! &get_persistent_form_data($persistent_db_file)) {
if ($ENV{'form.phase'} =~ /(run_search\|results)/) {	if ($env{'form.phase'} =~ /(run_search\|results)/) {
&Apache::lonnet::logthis('lonsearchcat:'.	&Apache::lonnet::logthis('lonsearchcat:'.
'Unable to recover data from '.	'Unable to recover data from '.
$persistent_db_file);	$persistent_db_file);
$r->print(<<END);	my $html=&Apache::lonxml::xmlbegin();
<html>	$r->print(<<END);
<head><title>LON-CAPA Search Error</title></head>	$html
	<head>
	<title>LON-CAPA Search Error</title></head>
$bodytag	$bodytag
We were unable to retrieve data describing your search. This is a serious	We were unable to retrieve data describing your search. This is a serious
error and has been logged. Please alert your LON-CAPA administrator.	error and has been logged. Please alert your LON-CAPA administrator.
Line 210 END	Line 216 END
## Clear out old values from groupsearch database	## Clear out old values from groupsearch database
##	##
untie %groupsearch_db if (tied(%groupsearch_db));	untie %groupsearch_db if (tied(%groupsearch_db));
if (($ENV{'form.cleargroupsort'} eq '1') \|\|	if (($env{'form.cleargroupsort'} eq '1') \|\|
(($ENV{'form.launch'} eq '1') &&	(($env{'form.launch'} eq '1') &&
($ENV{'form.catalogmode'} eq 'groupsearch'))) {	($env{'form.catalogmode'} eq 'groupsearch'))) {
if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {	if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
&start_fresh_session();	&start_fresh_session();
untie %groupsearch_db;	untie %groupsearch_db;
delete($ENV{'form.cleargroupsort'});	delete($env{'form.cleargroupsort'});
} else {	} else {
# This is a stupid error to give to the user.	# This is a stupid error to give to the user.
# It really tells them nothing.	# It really tells them nothing.
$r->print('<html><head></head>'.$bodytag.	my $html=&Apache::lonxml::xmlbegin();
	$r->print($html.'<head></head>'.$bodytag.
'Unable to tie hash to db file</body></html>');	'Unable to tie hash to db file</body></html>');
return OK;	return OK;
}	}
Line 229 END	Line 236 END
## Configure hidden fields	## Configure hidden fields
##	##
$hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.	$hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.
$ENV{'form.persistent_db_id'}.'" />'."\n";	$env{'form.persistent_db_id'}.'" />'."\n";
if (exists($ENV{'form.catalogmode'})) {	if (exists($env{'form.catalogmode'})) {
$hidden_fields .= &hidden_field('catalogmode');	$hidden_fields .= &hidden_field('catalogmode');
}	}
if (exists($ENV{'form.form'})) {	if (exists($env{'form.form'})) {
$hidden_fields .= &hidden_field('form');	$hidden_fields .= &hidden_field('form');
}	}
if (exists($ENV{'form.element'})) {	if (exists($env{'form.element'})) {
$hidden_fields .= &hidden_field('element');	$hidden_fields .= &hidden_field('element');
}	}
if (exists($ENV{'form.titleelement'})) {	if (exists($env{'form.titleelement'})) {
$hidden_fields .= &hidden_field('titleelement');	$hidden_fields .= &hidden_field('titleelement');
}	}
if (exists($ENV{'form.mode'})) {	if (exists($env{'form.mode'})) {
$hidden_fields .= &hidden_field('mode');	$hidden_fields .= &hidden_field('mode');
}	}
##	##
## Configure dynamic components of interface	## Configure dynamic components of interface
##	##
if ($ENV{'form.catalogmode'} eq 'interactive') {	if ($env{'form.catalogmode'} eq 'interactive') {
$closebutton="<input type='button' name='close' value='CLOSE' ";	$closebutton="<input type='button' name='close' value='CLOSE' ";
if ($ENV{'form.phase'} =~ /(results\|run_search)/) {	if ($env{'form.phase'} =~ /(results\|run_search)/) {
$closebutton .="onClick='parent.close()'";	$closebutton .="onClick='parent.close()'";
} else {	} else {
$closebutton .="onClick='self.close()'";	$closebutton .="onClick='self.close()'";
}	}
$closebutton .=">\n";	$closebutton .=">\n";
} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') {	} elsif ($env{'form.catalogmode'} eq 'groupsearch') {
$closebutton="<input type='button' name='close' value='CLOSE' ";	$closebutton="<input type='button' name='close' value='CLOSE' ";
if ($ENV{'form.phase'} =~ /(results\|run_search)/) {	if ($env{'form.phase'} =~ /(results\|run_search)/) {
$closebutton .="onClick='parent.close()'";	$closebutton .="onClick='parent.close()'";
} else {	} else {
$closebutton .="onClick='self.close()'";	$closebutton .="onClick='self.close()'";
Line 275 END	Line 282 END
##	##
## Sanity checks on form elements	## Sanity checks on form elements
##	##
if (!defined($ENV{'form.viewselect'})) {	if (!defined($env{'form.viewselect'})) {
if (($ENV{'form.catalogmode'} eq 'groupsearch') \|\|	$env{'form.viewselect'} ="summary";
($ENV{'form.catalogmode'} eq 'interactive')) {
$ENV{'form.viewselect'} ="Compact View";
} else {
$ENV{'form.viewselect'} ="Detailed Citation View";
}
}	}
$ENV{'form.phase'} = 'disp_basic' if (! exists($ENV{'form.phase'}));	$env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'}));
$ENV{'form.show'} = 20 if (! exists($ENV{'form.show'}));	$env{'form.show'} = 20 if (! exists($env{'form.show'}));
#	#
$ENV{'form.searchmode'} = 'basic' if (! exists($ENV{'form.searchmode'}));	$env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'}));
if ($ENV{'form.phase'} eq 'adv_search' \|\|	if ($env{'form.phase'} eq 'adv_search' \|\|
$ENV{'form.phase'} eq 'disp_adv') {	$env{'form.phase'} eq 'disp_adv') {
$ENV{'form.searchmode'} = 'advanced';	$env{'form.searchmode'} = 'advanced';
} elsif ($ENV{'form.phase'} eq 'course_search') {	} elsif ($env{'form.phase'} eq 'course_search') {
$ENV{'form.searchmode'} = 'course_search';	$env{'form.searchmode'} = 'course_search';
}	}
#	#
if ($ENV{'form.searchmode'} eq 'advanced') {	if ($env{'form.searchmode'} eq 'advanced') {
&Apache::lonhtmlcommon::add_breadcrumb	&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/searchcat?phase=disp_adv&'.	({href=>'/adm/searchcat?phase=disp_adv&'.
'catalogmode='.$ENV{'form.catalogmode'}.	'catalogmode='.$env{'form.catalogmode'}.
'&launch='.$ENV{'form.launch'}.	'&launch='.$env{'form.launch'}.
'&mode='.$ENV{'form.mode'},	'&mode='.$env{'form.mode'},
text=>"Advanced Search",	text=>"Advanced Search",
bug=>'Searching',});	bug=>'Searching',});
} elsif ($ENV{'form.searchmode'} eq 'course search') {	} elsif ($env{'form.searchmode'} eq 'course search') {
&Apache::lonhtmlcommon::add_breadcrumb	&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/searchcat?phase=disp_adv&'.	({href=>'/adm/searchcat?phase=disp_adv&'.
'catalogmode='.$ENV{'form.catalogmode'}.	'catalogmode='.$env{'form.catalogmode'}.
'&launch='.$ENV{'form.launch'}.	'&launch='.$env{'form.launch'}.
'&mode='.$ENV{'form.mode'},	'&mode='.$env{'form.mode'},
text=>"Course Search",	text=>"Course Search",
bug=>'Searching',});	bug=>'Searching',});
}	}
##	##
## Switch on the phase	## Switch on the phase
##	##
if ($ENV{'form.phase'} eq 'disp_basic') {	if ($env{'form.phase'} eq 'disp_basic') {
&print_basic_search_form($r,$closebutton,$hidden_fields);	&print_basic_search_form($r,$closebutton,$hidden_fields);
} elsif ($ENV{'form.phase'} eq 'disp_adv') {	} elsif ($env{'form.phase'} eq 'disp_adv') {
&print_advanced_search_form($r,$closebutton,$hidden_fields);	&print_advanced_search_form($r,$closebutton,$hidden_fields);
} elsif ($ENV{'form.phase'} eq 'results') {	} elsif ($env{'form.phase'} eq 'results') {
&display_results($r,$importbutton,$closebutton,$diropendb);	&display_results($r,$importbutton,$closebutton,$diropendb);
} elsif ($ENV{'form.phase'} =~ /^(sort\|run_search)$/) {	} elsif ($env{'form.phase'} =~ /^(sort\|run_search)$/) {
my ($query,$customquery,$customshow,$libraries,$pretty_string) =	my ($query,$customquery,$customshow,$libraries,$pretty_string) =
&get_persistent_data($persistent_db_file,	&get_persistent_data($persistent_db_file,
['query','customquery','customshow',	['query','customquery','customshow',
'libraries','pretty_string']);	'libraries','pretty_string']);
if ($ENV{'form.phase'} eq 'sort') {	if ($env{'form.phase'} eq 'sort') {
&print_sort_form($r,$pretty_string);	&print_sort_form($r,$pretty_string);
} elsif ($ENV{'form.phase'} eq 'run_search') {	} elsif ($env{'form.phase'} eq 'run_search') {
&run_search($r,$query,$customquery,$customshow,	&run_search($r,$query,$customquery,$customshow,
$libraries,$pretty_string);	$libraries,$pretty_string);
}	}
} elsif ($ENV{'form.phase'} eq 'course_search') {	} elsif ($env{'form.phase'} eq 'course_search') {
&course_search($r);	&course_search($r);
} elsif(($ENV{'form.phase'} eq 'basic_search') \|\|	} elsif(($env{'form.phase'} eq 'basic_search') \|\|
($ENV{'form.phase'} eq 'adv_search')) {	($env{'form.phase'} eq 'adv_search')) {
	#
	# We are running a search, try to parse it
	my ($query,$customquery,$customshow,$libraries) =
	(undef,undef,undef,undef);
	my $pretty_string;
	if ($env{'form.phase'} eq 'basic_search') {
	($query,$pretty_string,$libraries) =
	&parse_basic_search($r,$closebutton,$hidden_fields);
	return OK if (! defined($query));
	&make_persistent({ basicexp => $env{'form.basicexp'}},
	$persistent_db_file);
	} else { # Advanced search
	($query,$customquery,$customshow,$libraries,$pretty_string)
	= &parse_advanced_search($r,$closebutton,$hidden_fields);
	return OK if (! defined($query));
	}
	&make_persistent({ query => $query,
	customquery => $customquery,
	customshow => $customshow,
	libraries => $libraries,
	pretty_string => $pretty_string },
	$persistent_db_file);
	#
# Set up table	# Set up table
if (! defined(&create_results_table())) {	if (! defined(&create_results_table())) {
my $errorstring=&Apache::lonmysql::get_error();	my $errorstring=&Apache::lonmysql::get_error();
&Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.	&Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
'needed table. lonmysql error:'.	'needed table. lonmysql error:'.
$errorstring);	$errorstring);
	my $html=&Apache::lonxml::xmlbegin();
$r->print(<<END);	$r->print(<<END);
<html><head><title>Search Error</title></head>	$html
	<head>
	<title>Search Error</title></head>
$bodytag	$bodytag
Unable to create table in which to store search results.	Unable to create table in which to store search results.
The search has been aborted.	The search has been aborted.
Line 351 The search has been aborted.	Line 379 The search has been aborted.
END	END
return OK;	return OK;
}	}
delete($ENV{'form.launch'});	delete($env{'form.launch'});
if (! &make_form_data_persistent($r,$persistent_db_file)) {	if (! &make_form_data_persistent($r,$persistent_db_file)) {
$r->print(<<END);	my $html=&Apache::lonxml::xmlbegin();
<html><head><title>Search Error</title></head>	$r->print(<<END);
	$html
	<head>
	<title>Search Error</title></head>
$bodytag	$bodytag
Unable to properly store search information. The search has been aborted.	Unable to properly store search information. The search has been aborted.
</body>	</body>
Line 362 Unable to properly store search informat	Line 393 Unable to properly store search informat
END	END
return OK;	return OK;
}	}
#
# We are running a search
my ($query,$customquery,$customshow,$libraries) =
(undef,undef,undef,undef);
my $pretty_string;
if ($ENV{'form.phase'} eq 'basic_search') {
($query,$pretty_string,$libraries) =
&parse_basic_search($r,$closebutton,$hidden_fields);
} else { # Advanced search
($query,$customquery,$customshow,$libraries,$pretty_string)
= &parse_advanced_search($r,$closebutton,$hidden_fields);
return OK if (! defined($query));
}
&make_persistent({ query => $query,
customquery => $customquery,
customshow => $customshow,
libraries => $libraries,
pretty_string => $pretty_string },
$persistent_db_file);
##	##
## Print out the frames interface	## Print out the frames interface
##	##
&print_frames_interface($r);	if (defined($query)) {
	&print_frames_interface($r);
	}
}	}
return OK;	return OK;
}	}
Line 396 END	Line 410 END
# This routine sets non existant checkbox form elements to ''.	# This routine sets non existant checkbox form elements to ''.
#	#
sub clean_up_environment {	sub clean_up_environment {
if ($ENV{'form.phase'} eq 'basic_search') {	if ($env{'form.phase'} eq 'basic_search') {
if (! exists($ENV{'form.related'})) {	if (! exists($env{'form.related'})) {
$ENV{'form.related'} = '';	$env{'form.related'} = '';
}	}
if (! exists($ENV{'form.domains'})) {	if (! exists($env{'form.domains'})) {
$ENV{'form.domains'} = '';	$env{'form.domains'} = '';
}	}
} elsif ($ENV{'form.phase'} eq 'adv_search') {	} elsif ($env{'form.phase'} eq 'adv_search') {
foreach my $field ('title','keywords','notes',	foreach my $field ('title','keywords','notes',
'abstract','standards','mime') {	'abstract','standards','mime') {
if (! exists($ENV{'form.'.$field.'_related'})) {	if (! exists($env{'form.'.$field.'_related'})) {
$ENV{'form.'.$field.'_related'} = '';	$env{'form.'.$field.'_related'} = '';
}	}
}	}
} elsif ($ENV{'form.phase'} eq 'course_search') {	} elsif ($env{'form.phase'} eq 'course_search') {
if (! exists($ENV{'form.crsrelated'})) {	if (! exists($env{'form.crsrelated'})) {
$ENV{'form.crsrelated'} = '';	$env{'form.crsrelated'} = '';
}	}
}	}
}	}
Line 420 sub clean_up_environment {	Line 434 sub clean_up_environment {
sub hidden_field {	sub hidden_field {
my ($name,$value) = @_;	my ($name,$value) = @_;
if (! defined($value)) {	if (! defined($value)) {
$value = $ENV{'form.'.$name};	$value = $env{'form.'.$name};
}	}
return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;	return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
}	}
Line 439 my %alreadyseen;	Line 453 my %alreadyseen;
my %hash;	my %hash;
my $totalfound;	my $totalfound;

	sub make_symb {
	my ($id)=@_;
	my ($mapid,$resid)=split(/\./,$id);
	my $map=$hash{'map_id_'.$mapid};
	my $res=$hash{'src_'.$id};
	my $symb=&Apache::lonnet::encode_symb($map,$resid,$res);
	return $symb;
	}

sub course_search {	sub course_search {
my $r=shift;	my $r=shift;
my $bodytag=&Apache::loncommon::bodytag('Course Search');	my $bodytag=&Apache::loncommon::bodytag('Course Search');
my $pretty_search_string = '<b>'.$ENV{'form.courseexp'}.'</b>';	my $pretty_search_string = '<b>'.$env{'form.courseexp'}.'</b>';
my $search_string = $ENV{'form.courseexp'};	my $search_string = $env{'form.courseexp'};
my @New_Words;	my @New_Words;
if ($ENV{'form.crsrelated'}) {	undef(%alreadyseen);
($search_string,@New_Words) = &related_version($ENV{'form.courseexp'});	if ($env{'form.crsrelated'}) {
	($search_string,@New_Words) = &related_version($env{'form.courseexp'});
if (@New_Words) {	if (@New_Words) {
$pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>.";	$pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>.";
} else {	} else {
$pretty_search_string .= ' '.&mt('with no related words').".";	$pretty_search_string .= ' '.&mt('with no related words').".";
}	}
}	}
my $fulltext=$ENV{'form.crsfulltext'};	my $fulltext=$env{'form.crsfulltext'};
	my $discuss=$env{'form.crsdiscuss'};
my @allwords=($search_string,@New_Words);	my @allwords=($search_string,@New_Words);
$totalfound=0;	$totalfound=0;
$r->print('<html><head><title>LON-CAPA Course Search</title></head>'.	my $html=&Apache::lonxml::xmlbegin();
$bodytag.'<hr /><center><font size="+2" face="arial">'.$pretty_search_string.'</font></center><hr />');	$r->print($html.'<head><title>LON-CAPA Course Search</title></head>'.
	$bodytag.'<hr /><center><font size="+2" face="arial">'.$pretty_search_string.'</font></center><hr /><b>'.&mt('Course content').':</b><br />');
$r->rflush();	$r->rflush();
# ======================================================= Go through the course	# ======================================================= Go through the course
undef %alreadyseen;
%alreadyseen=();
my $c=$r->connection;	my $c=$r->connection;
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.".db",	if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
&GDBM_READER(),0640)) {	&GDBM_READER(),0640)) {
foreach (keys %hash) {	foreach (sort(keys(%hash))) {
if ($c->aborted()) { last; }	if ($c->aborted()) { last; }
if (($_=~/^src\_(.+)$/) && (!$alreadyseen{$hash{$_}})) {	if (($_=~/^src\_(.+)$/)) {
&checkonthis($r,$hash{$_},0,$hash{'title_'.$1},$fulltext,	if ($hash{'randomout_'.$1} & !$env{'request.role.adv'}) {
@allwords);	next;
	}
	my $symb=&make_symb($1);
	&checkonthis($r,$1,$hash{$_},0,&Apache::lonnet::gettitle($symb),
	$fulltext,$symb,@allwords);
}	}
}	}
untie(%hash);	untie(%hash);
}	}
unless ($totalfound) {	unless ($totalfound) {
$r->print('<p>'.&mt('No resources found').'.</p>');	$r->print('<p>'.&mt('No matches found in resources').'.</p>');
	}

	# Check discussions if requested
	if ($discuss) {
	my $totaldiscussions = 0;
	$r->print('<br /><br /><b>'.&mt('Discussion postings').':</b><br />');
	my $navmap = Apache::lonnavmaps::navmap->new();
	my @allres=$navmap->retrieveResources();
	my %discussiontime = &Apache::lonnet::dump('discussiontimes',
	$env{'course.'.$env{'request.course.id'}.'.domain'},
	$env{'course.'.$env{'request.course.id'}.'.num'});
	foreach my $resource (@allres) {
	my $result = '';
	my $applies = 0;
	my $symb = $resource->symb();
	my $ressymb = $symb;
	if ($symb =~ m#(___adm/\w+/\w+)/(\d+)/bulletinboard$#) {
	$ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard';
	unless ($ressymb =~ m#bulletin___\d+___adm/wrapper#) {
	$ressymb=~s#(bulletin___\d+___)#$1adm/wrapper/#;
	}
	}
	if (defined($discussiontime{$ressymb})) {
	my %contrib = &Apache::lonnet::restore($ressymb,$env{'request.course.id'},
	$env{'course.'.$env{'request.course.id'}.'.domain'},
	$env{'course.'.$env{'request.course.id'}.'.num'});
	if ($contrib{'version'}) {
	for (my $id=1;$id<=$contrib{'version'};$id++) {
	unless (($contrib{'hidden'}=~/\.$id\./) \|\| ($contrib{'deleted'}=~/\.$id\./)) {
	if ($contrib{$id.':subject'}) {
	$result .= $contrib{$id.':subject'};
	}
	if ($contrib{$id.':message'}) {
	$result .= $contrib{$id.':message'};
	}
	if ($contrib{$id,':attachmenturl'}) {
	if ($contrib{$id,':attachmenturl'} =~ m-/([^/]+)$-) {
	$result .= $1;
	}
	}
	$applies = &checkwords($result,$applies,@allwords);
	}
	}
	}
	}
	# Does this discussion apply?
	if ($applies) {
	my ($map,$ind,$url)=&Apache::lonnet::decode_symb($ressymb);
	my $disctype = &mt('resource');
	if ($url =~ m#/bulletinboard$#) {
	if ($url =~m#^adm/wrapper/adm/.*/bulletinboard$#) {
	$url =~s#^adm/wrapper##;
	}
	$disctype = &mt('bulletin board');
	} else {
	$url = '/res/'.$url;
	}
	if ($url =~ /\?/) {
	$url .= '&symb=';
	} else {
	$url .= '?symb=';
	}
	$url .= &Apache::lonnet::escape($resource->symb());
	my $title = $resource->compTitle();
	$r->print('<br /><a href="'.$url.'" target="cat">'.
	($title?$title:$url).'</a>  - '.$disctype.'<br />');
	$totaldiscussions++;
	} else {
	$r->print(' .');
	}
	}
	unless ($totaldiscussions) {
	$r->print('<p>'.&mt('No matches found in postings').'.</p>');
	}
}	}

# =================================================== Done going through course	# =================================================== Done going through course
$r->print('</body></html>');	$r->print('</body></html>');
}	}
Line 484 sub course_search {	Line 587 sub course_search {
# =============================== This pulls up a resource and its dependencies	# =============================== This pulls up a resource and its dependencies

sub checkonthis {	sub checkonthis {
my ($r,$url,$level,$title,$fulltext,@allwords)=@_;	my ($r,$id,$url,$level,$title,$fulltext,$symb,@allwords)=@_;
$alreadyseen{$url}=1;	$alreadyseen{$id}=1;
	if (&Apache::loncommon::connection_aborted($r)) { return; }
$r->rflush();	$r->rflush();
my $result=&Apache::lonnet::metadata($url,'title').' '.
&Apache::lonnet::metadata($url,'subject').' '.	my $result=$title.' ';
&Apache::lonnet::metadata($url,'abstract').' '.	if ($env{'request.role.adv'} \|\| !$hash{'encrypted_'.$id}) {
&Apache::lonnet::metadata($url,'keywords');	$result.=&Apache::lonnet::metadata($url,'title').' '.
if (($url) && ($fulltext)) {	&Apache::lonnet::metadata($url,'subject').' '.
$result.=&Apache::lonnet::ssi_body($url);	&Apache::lonnet::metadata($url,'abstract').' '.
	&Apache::lonnet::metadata($url,'keywords');
	}
	my ($extension)=($url=~/\.(\w+)$/);
	if (&Apache::loncommon::fileembstyle($extension) eq 'ssi' &&
	($url) && ($fulltext)) {
	$result.=&Apache::lonnet::ssi_body($url.'?symb='.&Apache::lonnet::escape($symb));
}	}
$result=~s/\s+/ /gs;	$result=~s/\s+/ /gs;
my $applies=0;	my $applies = 0;
foreach (@allwords) {	$applies = &checkwords($result,$applies,@allwords);
if ($_=~/\w/) {
if ($result=~/$_/si) {
$applies++;
}
}
}
# Does this resource apply?	# Does this resource apply?
if ($applies) {	if ($applies) {
$r->print('<br />');	$r->print('<br />');
for (my $i=0;$i<=$level*5;$i++) {	for (my $i=0;$i<=$level*5;$i++) {
$r->print(' ');	$r->print(' ');
}	}
$r->print('<a href="'.$url.'" target="cat">'.	my $href=$url;
($title?$title:$url).'</a><br />');	if ($hash{'encrypted_'.$id} && !$env{'request.role.adv'}) {
	$href=&Apache::lonenc::encrypted($href)
	.'?symb='.&Apache::lonenc::encrypted($symb);
	} else {
	$href.='?symb='.&Apache::lonnet::escape($symb);
	}
	$r->print('<a href="'.$href.'" target="cat">'.($title?$title:$url).
	'</a><br />');
$totalfound++;	$totalfound++;
} elsif ($fulltext) {	} elsif ($fulltext) {
$r->print(' .');	$r->print(' .');
Line 520 sub checkonthis {	Line 631 sub checkonthis {
my $dependencies=	my $dependencies=
&Apache::lonnet::metadata($url,'dependencies');	&Apache::lonnet::metadata($url,'dependencies');
foreach (split(/\,/,$dependencies)) {	foreach (split(/\,/,$dependencies)) {
if (($_=~/^\/res\//) && (!$alreadyseen{$_})) {	if (($_=~/^\/res\//) && (!$alreadyseen{$id})) {
&checkonthis($r,$_,$level+1,'',$fulltext,@allwords);	&checkonthis($r,$id,$_,$level+1,'',$fulltext,undef,@allwords);
}	}
}	}
}	}

	sub checkwords {
	my ($result,$applies,@allwords) = @_;
	foreach (@allwords) {
	if ($_=~/\w/) {
	if ($result=~/$_/si) {
	$applies++;
	}
	}
	}
	return $applies;
	}

sub untiehash {	sub untiehash {
if (tied(%hash)) {	if (tied(%hash)) {
untie(%hash);	untie(%hash);
Line 535 sub untiehash {	Line 658 sub untiehash {
} # End of course search scoping	} # End of course search scoping

sub search_html_header {	sub search_html_header {
	my $html=&Apache::lonxml::xmlbegin();
my $Str = <<ENDHEADER;	my $Str = <<ENDHEADER;
<html>	$html
<head>	<head>
<title>The LearningOnline Network with CAPA</title>	<title>The LearningOnline Network with CAPA</title>
</head>	</head>
Line 559 Prints the form for the basic search. S	Line 683 Prints the form for the basic search. S
######################################################################	######################################################################
sub print_basic_search_form {	sub print_basic_search_form {
my ($r,$closebutton,$hidden_fields) = @_;	my ($r,$closebutton,$hidden_fields) = @_;
	my $result = ($env{'form.catalogmode'} ne 'groupsearch');
my $bodytag=&Apache::loncommon::bodytag('Search').	my $bodytag=&Apache::loncommon::bodytag('Search').
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Searching',	&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Search_Basic',
undef,undef,! $ENV{'form.launch'});	undef,undef,
	$env{'form.catalogmode'} ne 'groupsearch');
my $scrout = &search_html_header().$bodytag;	my $scrout = &search_html_header().$bodytag;
if (&Apache::lonnet::allowed('bre',$ENV{'request.role.domain'})) {	if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
# Define interface components	# Define interface components
my $userelatedwords=	my $userelatedwords= '<label>'.
&mt('[_1] use related words',	&mt('[_1] use related words',
&Apache::lonhtmlcommon::checkbox	&Apache::lonhtmlcommon::checkbox
('related',$ENV{'form.related'},'related'));	('related',$env{'form.related'},'related')).'</label>';
my $onlysearchdomain=	my $onlysearchdomain='<label>'.
&mt('[_1] only search domain [_2]',	&mt('[_1] only search domain [_2]',
&Apache::lonhtmlcommon::checkbox('domains',	&Apache::lonhtmlcommon::checkbox('domains',
$ENV{'form.domains'},	$env{'form.domains'},
$r->dir_config('lonDefDomain')	$r->dir_config('lonDefDomain')
),	),
$r->dir_config('lonDefDomain')	$r->dir_config('lonDefDomain')
);	).'</label>';
	my $inclext= '<label>'.
	&mt('[_1] include external resources',
	&Apache::lonhtmlcommon::checkbox
	('inclext',$env{'form.inclext'})).'</label>';
my $adv_search_link =	my $adv_search_link =
'<a href="/adm/searchcat?'.	'<a href="/adm/searchcat?'.
'phase=disp_adv&'.	'phase=disp_adv&'.
'catalogmode='.$ENV{'form.catalogmode'}.	'catalogmode='.$env{'form.catalogmode'}.
'&launch='.$ENV{'form.launch'}.	'&launch='.$env{'form.launch'}.
'&mode='.$ENV{'form.mode'}.	'&mode='.$env{'form.mode'}.
'">'.&mt('Advanced Search').'</a>';	'">'.&mt('Advanced Search').'</a>';
#	#
$scrout.='<form name="loncapa_search" method="post" '.	$scrout.='<form name="loncapa_search" method="post" '.
Line 591 sub print_basic_search_form {	Line 721 sub print_basic_search_form {
$hidden_fields;	$hidden_fields;
#	#
$scrout .= '<center>'.$/;	$scrout .= '<center>'.$/;
if ($ENV{'request.course.id'}) {	if ($env{'request.course.id'}) {
$scrout .= '<h1>'.&mt('LON-CAPA Catalog Search').'</h1>';	$scrout .= '<h1>'.&mt('LON-CAPA Catalog Search').'</h1>';
} else {	} else {
# No need to tell them they are searching	# No need to tell them they are searching
Line 599 sub print_basic_search_form {	Line 729 sub print_basic_search_form {
}	}
$scrout.='<table>'.	$scrout.='<table>'.
'<tr><td align="center" valign="top">'.	'<tr><td align="center" valign="top">'.
&Apache::lonhtmlcommon::textbox('basicexp',	&Apache::lonhtmlcommon::textbox
$ENV{'form.basicexp'},50).'<br />'.	('basicexp',
	&HTML::Entities::encode($env{'form.basicexp'},'<>&"'),50
	).
	'<br />'.
'<font size="-1">'.&searchhelp().'</font>'.'</td>'.	'<font size="-1">'.&searchhelp().'</font>'.'</td>'.
'<td><font size="-1">'.	'<td><font size="-1">'.
'<nobr>'.(' 'x3).$adv_search_link.'</nobr>'.'<br />'.	'<nobr>'.(' 'x3).$adv_search_link.'</nobr>'.'<br />'.
'<nobr>'.(' 'x1).$userelatedwords.'</nobr>'.'<br />'.	'<nobr>'.(' 'x1).$userelatedwords.'</nobr>'.'<br />'.
'<nobr>'.(' 'x1).$onlysearchdomain.'</nobr>'.'<br />'.	'<nobr>'.(' 'x1).$onlysearchdomain.'</nobr>'.'<br />'.
'</font></td>'.	'<nobr>'.(' 'x1).$inclext.'</nobr>'.'<br />'.
	'</font></td>'.
'</tr>'.$/;	'</tr>'.$/;
#	#
# $scrout .= '<tr><td align="center">'.
# '<font size="-1">'.
# $userelatedwords.(' 'x3).
# $onlysearchdomain.(' 'x2).$adv_search_link.
# '</font>'.
# '</td></tr>'.$/;
$scrout .= '<tr><td align="center" colspan="2">'.	$scrout .= '<tr><td align="center" colspan="2">'.
'<font size="-1">'.	'<font size="-1">'.
'<input type="submit" name="basicsubmit" '.	'<input type="submit" name="basicsubmit" '.
Line 625 sub print_basic_search_form {	Line 753 sub print_basic_search_form {
'</td></tr>'.$/;	'</td></tr>'.$/;
$scrout .= '</table>'.$/.'</center>'.'</form>';	$scrout .= '</table>'.$/.'</center>'.'</form>';
}	}
if ($ENV{'request.course.id'}) {	if ($env{'request.course.id'}) {
my %lt=&Apache::lonlocal::texthash('srch' => 'Search',	my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
'header' => 'Course Search',	'header' => 'Course Search',
'note' => 'Enter terms or phrases, then press "Search" below',	'note' => 'Enter terms or phrases, then press "Search" below',
'use' => 'use related words',	'use' => 'use related words',
'full' =>'fulltext search (time consuming)'	'full' =>'fulltext search (time consuming)',
	'disc' => 'search discussion postings (resources and bulletin boards)',
);	);
$scrout.=(<<ENDCOURSESEARCH);	$scrout.=(<<ENDCOURSESEARCH);
<form name="loncapa_search" method="post" action="/adm/searchcat">	<form name="loncapa_search" method="post" action="/adm/searchcat">
Line 648 $lt{'note'}.	Line 777 $lt{'note'}.
ENDCOURSESEARCH	ENDCOURSESEARCH
$scrout.=' '.	$scrout.=' '.
&Apache::lonhtmlcommon::textbox('courseexp',	&Apache::lonhtmlcommon::textbox('courseexp',
$ENV{'form.courseexp'},40);	$env{'form.courseexp'},40);
my $crscheckbox =	my $crscheckbox =
&Apache::lonhtmlcommon::checkbox('crsfulltext',	&Apache::lonhtmlcommon::checkbox('crsfulltext',
$ENV{'form.crsfulltext'});	$env{'form.crsfulltext'});
my $relcheckbox =	my $relcheckbox =
&Apache::lonhtmlcommon::checkbox('crsrelated',	&Apache::lonhtmlcommon::checkbox('crsrelated',
$ENV{'form.crsrelated'});	$env{'form.crsrelated'});
	my $discheckbox =
	&Apache::lonhtmlcommon::checkbox('crsdiscuss',
	$env{'form.crsrelated'});
$scrout.=(<<ENDENDCOURSE);	$scrout.=(<<ENDENDCOURSE);
</td></tr>	</td></tr>
<tr><td>$relcheckbox $lt{'use'}</td><td></td></tr>	<tr><td><label>$relcheckbox $lt{'use'}</label></td><td></td></tr>
<tr><td>$crscheckbox $lt{'full'}</td><td></td></tr>	<tr><td><label>$crscheckbox $lt{'full'}</label></td><td></td></tr>
	<tr><td><label>$discheckbox $lt{'disc'}</label></td><td></td></tr>
</table><p>	</table><p>
<input type="submit" name="coursesubmit" value='$lt{'srch'}' />	<input type="submit" name="coursesubmit" value='$lt{'srch'}' />
</p>	</p>
Line 690 sub print_advanced_search_form{	Line 823 sub print_advanced_search_form{
my ($r,$closebutton,$hidden_fields) = @_;	my ($r,$closebutton,$hidden_fields) = @_;
my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search').	my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search').
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching',	&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching',
'Searching',	'Search_Advanced',
undef,undef,	undef,undef,
! $ENV{'form.launch'});	$env{'form.catalogmode'} ne 'groupsearch');

my %lt=&Apache::lonlocal::texthash('srch' => 'Search',	my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
'reset' => 'Reset',	'reset' => 'Reset',
'help' => 'Help');	'help' => 'Help');
Line 728 ENDHEADER	Line 860 ENDHEADER
'abstract' => 1,	'abstract' => 1,
'standards'=> 1,	'standards'=> 1,
'mime' => 1,	'mime' => 1,
	'subject' => 1,
);	);
#	#
foreach my $field ('title','author','owner','authorspace','modifyinguser',	foreach my $field ('title','author','subject','owner','authorspace',
'keywords','notes','abstract','standards','mime') {	'modifyinguser','keywords','notes','abstract',
	'standards','mime') {
$scrout.='<tr><td align="right">'.&titlefield($fields{$field}).'</td><td>'.	$scrout.='<tr><td align="right">'.&titlefield($fields{$field}).'</td><td>'.
&Apache::lonmeta::prettyinput($field,	&Apache::lonmeta::prettyinput($field,
$ENV{'form.'.$field},	$env{'form.'.$field},
$field,	$field,
'advsearch',	'advsearch',
$related_word_search{$field},	$related_word_search{$field},
'</td><td align="left">',	'</td><td align="left">',
$ENV{'form.'.$field.'_related'},	$env{'form.'.$field.'_related'},
50);	50);
if ($related_word_search{$field}) {	if ($related_word_search{$field}) {
$scrout .= 'related words';	$scrout .= 'related words';
Line 753 ENDHEADER	Line 887 ENDHEADER
'<td align="right">'.&titlefield($fields{$field}).'</td>'.	'<td align="right">'.&titlefield($fields{$field}).'</td>'.
'<td colspan="2">'.	'<td colspan="2">'.
&Apache::lonmeta::prettyinput($field,	&Apache::lonmeta::prettyinput($field,
$ENV{'form.'.$field},	$env{'form.'.$field},
$field,	$field,
'advsearch',	'advsearch',
0).	0).
Line 762 ENDHEADER	Line 896 ENDHEADER
$scrout.='<tr><td align="right">'.	$scrout.='<tr><td align="right">'.
&titlefield(&mt('MIME Type Category')).'</td><td colspan="2">'.	&titlefield(&mt('MIME Type Category')).'</td><td colspan="2">'.
&Apache::loncommon::filecategoryselect('category',	&Apache::loncommon::filecategoryselect('category',
$ENV{'form.category'}).	$env{'form.category'}).
'</td></tr>'.$/;	'</td></tr>'.$/;
$scrout.='<tr><td align="right" valign="top">'.	$scrout.='<tr><td align="right" valign="top">'.
&titlefield(&mt('Domains')).'</td><td colspan="2">'.	&titlefield(&mt('Domains')).'</td><td colspan="2">'.
&Apache::loncommon::domain_select('domains',	&Apache::loncommon::domain_select('domains',
$ENV{'form.domains'},1).	$env{'form.domains'},1).
'</td></tr>'.$/;	'<br /><label>'.
	&mt('[_1] include external resources',
	&Apache::lonhtmlcommon::checkbox
	('inclext',$env{'form.inclext'})).'</label></td></tr>'.$/;
#	#
# Misc metadata	# Misc metadata
$scrout.='<tr><td align="right" valign="top">'.	$scrout.='<tr><td align="right" valign="top">'.
&titlefield(&mt('Copyright/Distribution')).'</td><td colspan="2">'.	&titlefield(&mt('Copyright/Distribution')).'</td><td colspan="2">'.
&Apache::lonmeta::selectbox('copyright',	&Apache::lonmeta::selectbox('copyright',
'',,	$env{'form.copyright'},
\&Apache::loncommon::copyrightdescription,	\&Apache::loncommon::copyrightdescription,
( undef,	( undef,
&Apache::loncommon::copyrightids)	&Apache::loncommon::copyrightids)
Line 782 ENDHEADER	Line 919 ENDHEADER
$scrout.='<tr><td align="right" valign="top">'.	$scrout.='<tr><td align="right" valign="top">'.
&titlefield(&mt('Language')).'</td><td colspan="2">'.	&titlefield(&mt('Language')).'</td><td colspan="2">'.
&Apache::lonmeta::selectbox('language',	&Apache::lonmeta::selectbox('language',
'notset',,	$env{'form.language'},
\&Apache::loncommon::languagedescription,	\&Apache::loncommon::languagedescription,
('any',&Apache::loncommon::languageids)	('any',&Apache::loncommon::languageids)
).'</td></tr>';	).'</td></tr>';
Line 964 Outputs: text for box with view options	Line 1101 Outputs: text for box with view options
######################################################################	######################################################################
sub viewoptions {	sub viewoptions {
my $scrout;	my $scrout;
if (! defined($ENV{'form.viewselect'})) {	if (! defined($env{'form.viewselect'})) {
$ENV{'form.viewselect'}='detailed';	$env{'form.viewselect'}='detailed';
}	}
$scrout.=&Apache::lonmeta::selectbox('viewselect',	$scrout.=&Apache::lonmeta::selectbox('viewselect',
$ENV{'form.viewselect'},	$env{'form.viewselect'},
\&viewoptiontext,	\&viewoptiontext,
sort(keys(%Views)));	sort(keys(%Views)));
$scrout.= '  ';	$scrout.= '  ';
my $countselect = &Apache::lonmeta::selectbox('show',	my $countselect = &Apache::lonmeta::selectbox('show',
$ENV{'form.show'},	$env{'form.show'},
undef,	undef,
(10,20,50,100,1000,10000));	(10,20,50,100,1000,10000));
$scrout .= (' 'x2).&mt('[_1] Records per Page',$countselect).	$scrout .= (' 'x2).&mt('[_1] Records per Page',$countselect).
Line 997 Outputs: return little blurb on how to e	Line 1134 Outputs: return little blurb on how to e
######################################################################	######################################################################
######################################################################	######################################################################
sub searchhelp {	sub searchhelp {
return &mt('Enter terms or phrases separated by AND, OR, or NOT');	return &mt('Enter words and quoted phrases');
}	}

######################################################################	######################################################################
Line 1013 Outputs: returns undef on database error	Line 1150 Outputs: returns undef on database error

This function is the reverse of &make_persistent() for form data.	This function is the reverse of &make_persistent() for form data.
Retrieve persistent data from %persistent_db. Retrieved items will have their	Retrieve persistent data from %persistent_db. Retrieved items will have their
values unescaped. If a form value already exists in $ENV, it will not be	values unescaped. If a form value already exists in $env, it will not be
overwritten. Form values that are array references may have values appended	overwritten. Form values that are array references may have values appended
to them.	to them.

Line 1035 sub get_persistent_form_data {	Line 1172 sub get_persistent_form_data {
next if ($name !~ /^form./);	next if ($name !~ /^form./);
# Kludgification begins!	# Kludgification begins!
if ($name eq 'form.domains' &&	if ($name eq 'form.domains' &&
$ENV{'form.searchmode'} eq 'basic' &&	$env{'form.searchmode'} eq 'basic' &&
$ENV{'form.phase'} ne 'disp_basic') {	$env{'form.phase'} ne 'disp_basic') {
next;	next;
}	}
# End kludge (hopefully)	# End kludge (hopefully)
next if (exists($ENV{$name}));	next if (exists($env{$name}));
my @values = map {	my @values = map {
&Apache::lonnet::unescape($_);	&Apache::lonnet::unescape($_);
} split(',',$persistent_db{$name});	} split(',',$persistent_db{$name});
next if (@values <1);	next if (@values <1);
if ($arrays_allowed{$name}) {	if ($arrays_allowed{$name}) {
$ENV{$name} = [@values];	$env{$name} = [@values];
} else {	} else {
$ENV{$name} = $values[0] if ($values[0]);	$env{$name} = $values[0] if ($values[0]);
}	}
}	}
untie (%persistent_db);	untie (%persistent_db);
Line 1153 sub make_form_data_persistent {	Line 1290 sub make_form_data_persistent {
my $r = shift;	my $r = shift;
my $filename = shift;	my $filename = shift;
my %save;	my %save;
foreach (keys(%ENV)) {	foreach (keys(%env)) {
next if (!/^form/ \|\| /submit/);	next if (!/^form/ \|\| /submit/);
$save{$_} = $ENV{$_};	$save{$_} = $env{$_};
}	}
return &make_persistent(\%save,$filename);	return &make_persistent(\%save,$filename);
}	}
Line 1188 Parse advanced search form and return th	Line 1325 Parse advanced search form and return th
sub parse_advanced_search {	sub parse_advanced_search {
my ($r,$closebutton,$hidden_fields)=@_;	my ($r,$closebutton,$hidden_fields)=@_;
my @BasicFields = ('title','author','subject','keywords','url','version',	my @BasicFields = ('title','author','subject','keywords','url','version',
'notes','abstract','extension','owner',	'notes','abstract','extension','owner','authorspace',
# 'custommetadata','customshow',	# 'custommetadata','customshow',
'modifyinguser','standards','mime');	'modifyinguser','standards','mime');
my @StatsFields = &statfields();	my @StatsFields = &statfields();
my @EvalFields = &evalfields();	my @EvalFields = &evalfields();
my $fillflag=0;	my $fillflag=0;
my $pretty_search_string = "<br />\n";	my $pretty_search_string = "";
# Clean up fields for safety	# Clean up fields for safety
for my $field (@BasicFields,	for my $field (@BasicFields,
'creationdatestart_month','creationdatestart_day',	'creationdatestart_month','creationdatestart_day',
Line 1203 sub parse_advanced_search {	Line 1340 sub parse_advanced_search {
'lastrevisiondatestart_month','lastrevisiondatestart_day',	'lastrevisiondatestart_month','lastrevisiondatestart_day',
'lastrevisiondatestart_year','lastrevisiondateend_month',	'lastrevisiondatestart_year','lastrevisiondateend_month',
'lastrevisiondateend_day','lastrevisiondateend_year') {	'lastrevisiondateend_day','lastrevisiondateend_year') {
$ENV{'form.'.$field}=~s/[^\w\/\s\=\-\"\']//g;	$env{'form.'.$field}=~s/[^\w\/\s\=\-\"\']//g;
$ENV{'form.'.$field}=~s/(not\s$\|^\s(and\|or)\|)//gi;
}	}
foreach ('mode','form','element') {	foreach ('mode','form','element') {
# is this required? Hmmm.	# is this required? Hmmm.
next if (! exists($ENV{'form.'.$_}));	next if (! exists($env{'form.'.$_}));
$ENV{'form.'.$_}=&Apache::lonnet::unescape($ENV{'form.'.$_});	$env{'form.'.$_}=&Apache::lonnet::unescape($env{'form.'.$_});
$ENV{'form.'.$_}=~s/[^\w\/\s\=\-\"\']//g;	$env{'form.'.$_}=~s/[^\w\/\s\=\-\"\']//g;
}	}
# Preprocess the category form element.	# Preprocess the category form element.
$ENV{'form.category'} = 'any' if (! defined($ENV{'form.category'}) \|\|	$env{'form.category'} = 'any' if (! defined($env{'form.category'}) \|\|
ref($ENV{'form.category'}));	ref($env{'form.category'}));
#	#
# Check to see if enough information was filled in	# Check to see if enough information was filled in
foreach my $field (@BasicFields) {	foreach my $field (@BasicFields) {
if (&filled($ENV{'form.'.$field})) {	if (&filled($env{'form.'.$field})) {
$fillflag++;	$fillflag++;
}	}
}	}
foreach my $field (@StatsFields,@EvalFields) {	foreach my $field (@StatsFields,@EvalFields) {
if (&filled($ENV{'form.'.$field.'_max'})) {	if (&filled($env{'form.'.$field.'_max'})) {
$fillflag++;	$fillflag++;
}	}
if (&filled($ENV{'form.'.$field.'_min'})) {	if (&filled($env{'form.'.$field.'_min'})) {
$fillflag++;	$fillflag++;
}	}
}	}

for my $field ('lowestgradelevel','highestgradelevel') {	for my $field ('lowestgradelevel','highestgradelevel') {
if ( $ENV{'form.'.$field} =~ /^\d+$/ &&	if ( $env{'form.'.$field} =~ /^\d+$/ &&
$ENV{'form.'.$field} > 0) {	$env{'form.'.$field} > 0) {
$fillflag++;	$fillflag++;
}	}
}	}
Line 1248 sub parse_advanced_search {	Line 1384 sub parse_advanced_search {
my $font = '<font color="#800000" face="helvetica">';	my $font = '<font color="#800000" face="helvetica">';
# Evaluate logical expression AND/OR/NOT phrase fields.	# Evaluate logical expression AND/OR/NOT phrase fields.
foreach my $field (@BasicFields) {	foreach my $field (@BasicFields) {
next if (!defined($ENV{'form.'.$field}) \|\| $ENV{'form.'.$field} eq '');	next if (!defined($env{'form.'.$field}) \|\| $env{'form.'.$field} eq '');
foreach my $searchphrase(&process_phrase_input($ENV{'form.'.$field})){	my ($error,$SQLQuery) =
$pretty_search_string .= $font."$field</font> contains <b>".	&process_phrase_input($env{'form.'.$field},
$searchphrase."</b>";	$env{'form.'.$field.'_related'},$field);
if ($ENV{'form.'.$field.'_related'}) {	if (defined($error)) {
my @New_Words;	&output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv',
($searchphrase,@New_Words) = &related_version($searchphrase);	$hidden_fields,$field);
if (@New_Words) {	return;
$pretty_search_string .= " with related words: ".	} else {
"<b>@New_Words</b>.";	$pretty_search_string .=
	$font.$field.'</font>: '.$env{'form.'.$field};
	if ($env{'form.'.$field.'_related'}) {
	my @Words =
	&Apache::loncommon::get_related_words
	($env{'form.'.$field});
	if (@Words) {
	$pretty_search_string.= ' with related words: '.
	join(', ',@Words[0..4]);
} else {	} else {
$pretty_search_string .= " with no related words.";	$pretty_search_string.= ' with related words.';
}	}
}	}
$pretty_search_string .= "<br />\n";	$pretty_search_string .= '<br />';
push @queries,&build_SQL_query($field,$searchphrase);	push (@queries,$SQLQuery);
}	}
}	}
#	#
# Make the 'mime' from 'form.category' and 'form.extension'	# Make the 'mime' from 'form.category' and 'form.extension'
#	#
my $searchphrase;	my $searchphrase;
if (exists($ENV{'form.category'}) &&	if (exists($env{'form.category'}) &&
$ENV{'form.category'} !~ /^\s*$/ &&	$env{'form.category'} !~ /^\s*$/ &&
$ENV{'form.category'} ne 'any') {	$env{'form.category'} ne 'any') {
my @extensions = &Apache::loncommon::filecategorytypes	my @extensions = &Apache::loncommon::filecategorytypes
($ENV{'form.category'});	($env{'form.category'});
if (scalar(@extensions) > 0) {	if (scalar(@extensions) > 0) {
$searchphrase = join(' OR ',@extensions);	$searchphrase = join(' OR ',@extensions);
}	}
}	}
if (defined($searchphrase)) {	if (defined($searchphrase)) {
push @queries,&build_SQL_query('mime',$searchphrase);	my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime');
	push @queries,$SQLsearch;
$pretty_search_string .=$font.'mime</font> contains <b>'.	$pretty_search_string .=$font.'mime</font> contains <b>'.
$searchphrase.'</b><br />';	$searchphrase.'</b><br />';
}	}
#	#
# Evaluate option lists	# Evaluate option lists
if ($ENV{'form.lowestgradelevel'} &&	if ($env{'form.lowestgradelevel'} &&
$ENV{'form.lowestgradelevel'} ne '0' &&	$env{'form.lowestgradelevel'} ne '0' &&
$ENV{'form.lowestgradelevel'} =~ /^\d+$/) {	$env{'form.lowestgradelevel'} =~ /^\d+$/) {
push(@queries,	push(@queries,
'(lowestgradelevel>='.$ENV{'form.lowestgradelevel'}.')');	'(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')');
$pretty_search_string.="lowestgradelevel>=".	$pretty_search_string.="lowestgradelevel>=".
$ENV{'form.lowestgradelevel'}."<br />\n";	$env{'form.lowestgradelevel'}."<br />\n";
}	}
if ($ENV{'form.highestgradelevel'} &&	if ($env{'form.highestgradelevel'} &&
$ENV{'form.highestgradelevel'} ne '0' &&	$env{'form.highestgradelevel'} ne '0' &&
$ENV{'form.highestgradelevel'} =~ /^\d+$/) {	$env{'form.highestgradelevel'} =~ /^\d+$/) {
push(@queries,	push(@queries,
'(highestgradelevel<='.$ENV{'form.highestgradelevel'}.')');	'(highestgradelevel<='.$env{'form.highestgradelevel'}.')');
$pretty_search_string.="highestgradelevel<=".	$pretty_search_string.="highestgradelevel<=".
$ENV{'form.highestgradelevel'}."<br />\n";	$env{'form.highestgradelevel'}."<br />\n";
}	}
if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') {	if ($env{'form.language'} and $env{'form.language'} ne 'any') {
push @queries,"(language like \"$ENV{'form.language'}\")";	push @queries,"(language like \"$env{'form.language'}\")";
$pretty_search_string.=$font."language</font>= ".	$pretty_search_string.=$font."language</font>= ".
&Apache::loncommon::languagedescription($ENV{'form.language'}).	&Apache::loncommon::languagedescription($env{'form.language'}).
"<br />\n";	"<br />\n";
}	}
if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') {	if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') {
push @queries,"(copyright like \"$ENV{'form.copyright'}\")";	push @queries,"(copyright like \"$env{'form.copyright'}\")";
$pretty_search_string.=$font."copyright</font> = ".	$pretty_search_string.=$font."copyright</font> = ".
&Apache::loncommon::copyrightdescription($ENV{'form.copyright'}).	&Apache::loncommon::copyrightdescription($env{'form.copyright'}).
"<br \>\n";	"<br />\n";
}	}
#	#
# Statistics	# Statistics
foreach my $field (@StatsFields,@EvalFields) {	foreach my $field (@StatsFields,@EvalFields) {
my ($min,$max);	my ($min,$max);
if (exists($ENV{'form.'.$field.'_min'}) &&	if (exists($env{'form.'.$field.'_min'}) &&
$ENV{'form.'.$field.'_min'} ne '') {	$env{'form.'.$field.'_min'} ne '') {
$min = $ENV{'form.'.$field.'_min'};	$min = $env{'form.'.$field.'_min'};
}	}
if (exists($ENV{'form.'.$field.'_max'}) &&	if (exists($env{'form.'.$field.'_max'}) &&
$ENV{'form.'.$field.'_max'} ne '') {	$env{'form.'.$field.'_max'} ne '') {
$max = $ENV{'form.'.$field.'_max'};	$max = $env{'form.'.$field.'_max'};
}	}
next if (! defined($max) && ! defined($min));	next if (! defined($max) && ! defined($min));
if (defined($min) && defined($max)) {	if (defined($min) && defined($max)) {
Line 1377 sub parse_advanced_search {	Line 1522 sub parse_advanced_search {
## because I was unable to figureout exactly how it worked and could	## because I was unable to figureout exactly how it worked and could
## not imagine people actually using it. MH	## not imagine people actually using it. MH
##	##
# if ($ENV{'form.custommetadata'}) {	# if ($env{'form.custommetadata'}) {
# $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".	# $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
# $ENV{'form.custommetadata'}."</b><br />\n";	# $env{'form.custommetadata'}."</b><br />\n";
# $customquery=&build_custommetadata_query('custommetadata',	# $customquery=&build_custommetadata_query('custommetadata',
# $ENV{'form.custommetadata'});	# $env{'form.custommetadata'});
# }	# }
my $customshow=undef;	my $customshow=undef;
# if ($ENV{'form.customshow'}) {	# if ($env{'form.customshow'}) {
# $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".	# $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
# $ENV{'form.customshow'}."</b><br />\n";	# $env{'form.customshow'}."</b><br />\n";
# $customshow=$ENV{'form.customshow'};	# $customshow=$env{'form.customshow'};
# $customshow=~s/[^\w\s]//g;	# $customshow=~s/[^\w\s]//g;
# my @fields=split(/\s+/,$customshow);	# my @fields=split(/\s+/,$customshow);
# $customshow=join(" ",@fields);	# $customshow=join(" ",@fields);
Line 1395 sub parse_advanced_search {	Line 1540 sub parse_advanced_search {
##	##
## Deal with restrictions to given domains	## Deal with restrictions to given domains
##	##
my ($libraries_to_query,$pretty_domains_string) =	my ($libraries_to_query,$pretty_domains_string,$domain_sql_restriction) =
&parse_domain_restrictions();	&parse_domain_restrictions();
	push(@queries,$domain_sql_restriction);
$pretty_search_string .= $pretty_domains_string."<br />\n";	$pretty_search_string .= $pretty_domains_string."<br />\n";
#	#
if (@queries) {	if (@queries) {
$query="SELET * FROM metadata WHERE ".join(" AND ",@queries);	$query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')';
} elsif ($customquery) {	} elsif ($customquery) {
$query = '';	$query = '';
}	}
# &Apache::lonnet::logthis('query = '.$/.$query);	#&Apache::lonnet::logthis('advanced query = '.$/.$query);
return ($query,$customquery,$customshow,$libraries_to_query,	return ($query,$customquery,$customshow,$libraries_to_query,
$pretty_search_string);	$pretty_search_string);
}	}

sub parse_domain_restrictions {	sub parse_domain_restrictions {
my $libraries_to_query = undef;	my $libraries_to_query = undef;
# $ENV{'form.domains'} can be either a scalar or an array reference.	# $env{'form.domains'} can be either a scalar or an array reference.
# We need an array.	# We need an array.
if (! exists($ENV{'form.domains'}) \|\| $ENV{'form.domains'} eq '') {	if (! exists($env{'form.domains'}) \|\| $env{'form.domains'} eq '') {
return (undef,'');	return (undef,'',undef);
}
my @allowed_domains;
if (ref($ENV{'form.domains'})) {
@allowed_domains = @{$ENV{'form.domains'}};
} else {
@allowed_domains = ($ENV{'form.domains'});
}	}
	my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains');
#	#
my %domain_hash = ();	my %domain_hash = ();
my $pretty_domains_string;	my $pretty_domains_string;
	my $domain_sql_restriction;
foreach (@allowed_domains) {	foreach (@allowed_domains) {
$domain_hash{$_}++;	$domain_hash{$_}++;
}	}
if ($domain_hash{'any'}) {	if ($domain_hash{'any'}) {
$pretty_domains_string = "In all LON-CAPA domains.";	$pretty_domains_string = "In all LON-CAPA domains.";
	$domain_sql_restriction = undef;
} else {	} else {
if (@allowed_domains > 1) {	if (@allowed_domains > 1) {
$pretty_domains_string = "In LON-CAPA domains:";	$pretty_domains_string = "In LON-CAPA domains:";
} else {	} else {
$pretty_domains_string = "In LON-CAPA domain ";	$pretty_domains_string = "In LON-CAPA domain ";
}	}
	$domain_sql_restriction =
	'(domain="'.join('" OR domain="',@allowed_domains).'")';
foreach (sort @allowed_domains) {	foreach (sort @allowed_domains) {
$pretty_domains_string .= "<b>".$_."</b> ";	$pretty_domains_string .= "<b>".$_."</b> ";
}	}
Line 1445 sub parse_domain_restrictions {	Line 1590 sub parse_domain_restrictions {
}	}
}	}
}	}
return ($libraries_to_query,$pretty_domains_string);	return ($libraries_to_query,
	$pretty_domains_string,
	$domain_sql_restriction);
}	}

######################################################################	######################################################################
Line 1466 sub parse_basic_search {	Line 1613 sub parse_basic_search {
#	#
# Clean up fields for safety	# Clean up fields for safety
for my $field ('basicexp') {	for my $field ('basicexp') {
$ENV{"form.$field"}=~s/[^\w\s\-]//g;	$env{"form.$field"}=~s/[^\w\s\'\"\!\-]//g;
}	}
foreach ('mode','form','element') {	foreach ('mode','form','element') {
# is this required? Hmmm.	# is this required? Hmmm.
next unless (exists($ENV{"form.$_"}));	next unless (exists($env{"form.$_"}));
$ENV{"form.$_"}=&Apache::lonnet::unescape($ENV{"form.$_"});	$env{"form.$_"}=&Apache::lonnet::unescape($env{"form.$_"});
$ENV{"form.$_"}=~s/[^\w\/\s\=\-\"\']//g;	$env{"form.$_"}=~s/[^\w\/\s\=\-\"\']//g;
}	}
my ($libraries_to_query,$pretty_domains_string) =	my ($libraries_to_query,$pretty_domains_string,$domain_sql_restriction) =
&parse_domain_restrictions();	&parse_domain_restrictions();
#	#
# Check to see if enough of a query is filled in	# Check to see if enough of a query is filled in
my $search_string = $ENV{'form.basicexp'};	my $search_string = $env{'form.basicexp'};
$search_string =~ s/(not\s$\|^\s(and\|or)\|)//gi;
if (! &filled($search_string)) {	if (! &filled($search_string)) {
&output_blank_field_error($r,$closebutton,'phase=disp_basic');	&output_blank_field_error($r,$closebutton,'phase=disp_basic');
return OK;	return OK;
}	}
my $pretty_search_string='';	my $pretty_search_string=$search_string;
my @Queries;	my @Queries;
my $concatarg=join(',',	my $searchfield = 'concat_ws(" ",'.join(',',
('title', 'author', 'subject', 'notes', 'abstract',	('title','author','subject',
'keywords'));	'notes','abstract','keywords')
foreach my $search (&process_phrase_input($search_string)){	).')';
if ($ENV{'form.related'}) {	my ($error,$SQLQuery) = &process_phrase_input($search_string,
$pretty_search_string .= ' and <br />' if ($pretty_search_string ne '');	$env{'form.related'},
$pretty_search_string .= '<b>'.$search.'</b>';	$searchfield);
my @New_Words;	if ($error) {
($search,@New_Words) = &related_version($search);	&output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
next if (! $search);	'','basicexp');
if (@New_Words) {	return;
$pretty_search_string .=	}
" with related words: <b>@New_Words</b>";	push(@Queries,$SQLQuery);
}	if (defined($domain_sql_restriction) && $domain_sql_restriction ne '') {
} else {	push(@Queries,$domain_sql_restriction);
$pretty_search_string .= ' and ' if ($pretty_search_string ne '');
$pretty_search_string .= '<b>'.$search.'</b>';
}
#
# Build SQL query string based on form page
push(@Queries,
&build_SQL_query('concat_ws(" ",'.$concatarg.')',$search));
}	}
	#foreach my $q (@Queries) {
	# &Apache::lonnet::logthis(' '.$q);
	#}
my $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);	my $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
#	#
if (defined($pretty_domains_string) && $pretty_domains_string ne '') {	if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
Line 1516 sub parse_basic_search {	Line 1658 sub parse_basic_search {
}	}
$pretty_search_string .= "<br />\n";	$pretty_search_string .= "<br />\n";
$pretty_search_string =~ s:^<br /> and ::;	$pretty_search_string =~ s:^<br /> and ::;
# &Apache::lonnet::logthis($final_query);	#&Apache::lonnet::logthis('simple search final query = '.$/.$final_query);
return ($final_query,$pretty_search_string,	return ($final_query,$pretty_search_string,
$libraries_to_query);	$libraries_to_query);
}	}


	###############################################################
	###############################################################

	my @Phrases;

	sub concat {
	my ($item) = @_;
	my $results = '';
	foreach (@$item) {
	if (ref($_) eq 'ARRAY') {
	$results .= join(' ',@$_);
	}
	}
	return $results;
	}

sub process_phrase_input {	sub process_phrase_input {
my ($phrase)=@_;	my ($phrase,$related,$field)=@_;
my @Phrases;	#&Apache::lonnet::logthis('phrase = :'.$phrase.':');
# &Apache::lonnet::logthis('phrase = :'.$phrase.':');	my $grammar = <<'ENDGRAMMAR';
my $in_quotes = 0;	searchphrase:
my @Words = split(/\s+/,$phrase);	expression /^\Z/ {
foreach my $word (@Words) {	# &Apache::lonsearchcat::print_item(\@item,0);
$word =~ s/(\w+)\"(\w+)/$1$2/g;	[@item];
if ($in_quotes) {	}
if ($word =~ s/(\")$//) {	expression:
$in_quotes = 0;	phrase(s) {
	[@item];
	}
	phrase:
	orword {
	[@item];
	}
	\| andword {
	[@item];
	}
	\| minusword {
	unshift(@::Phrases,$item[1]->[0]);
	unshift(@::Phrases,$item[1]->[1]);
	[@item];
	}
	\| word {
	unshift(@::Phrases,$item[1]);
	[@item];
	}
	#
	orword:
	word 'OR' phrase {
	unshift(@::Phrases,'OR');
	unshift(@::Phrases,$item[1]);
	[@item];
	}
	\| word 'or' phrase {
	unshift(@::Phrases,'OR');
	unshift(@::Phrases,$item[1]);
	[@item];
	}
	\| minusword 'OR' phrase {
	unshift(@::Phrases,'OR');
	unshift(@::Phrases,$item[1]->[0]);
	unshift(@::Phrases,$item[1]->[1]);
	[@item];
	}
	\| minusword 'or' phrase {
	unshift(@::Phrases,'OR');
	unshift(@::Phrases,$item[1]->[0]);
	unshift(@::Phrases,$item[1]->[1]);
	[@item];
	}
	andword:
	word phrase {
	unshift(@::Phrases,'AND');
	unshift(@::Phrases,$item[1]);
	[@item];
	}
	\| minusword phrase {
	unshift(@::Phrases,'AND');
	unshift(@::Phrases,$item[1]->[0]);
	unshift(@::Phrases,$item[1]->[1]);
	[@item];
	}
	#
	minusword:
	'-' word {
	[$item[2],'NOT'];
	}
	word:
	"'" term(s) "'" {
	&Apache::lonsearchcat::concat(\@item);
	}
	\| '"' term(s) '"' {
	&Apache::lonsearchcat::concat(\@item);
	}
	\| term {
	$item[1];
	}
	term:
	/[\w\Q:!@#$%^&*()+_=\|{}<>,.;\\\/?\E]+/ {
	$item[1];
	}
	ENDGRAMMAR
	#
	# The end result of parsing the phrase with the grammar is an array
	# @::Phrases.
	# $phrase = "gene splicing" or cat -> "gene splicing","OR","cat"
	# $phrase = "genetic engineering" -dna ->
	# "genetic engineering","AND","NOT","dna"
	# $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle"
	undef(@::Phrases);
	my $p = new Parse::RecDescent($grammar);
	if (! defined($p->searchphrase($phrase))) {
	&Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase);
	return 'Unable to process phrase '.$phrase;
	}
	#
	# Go through the phrases and make sense of them.
	# Apply modifiers NOT OR and AND to the phrases.
	my @NewPhrases;
	while(@::Phrases) {
	my $phrase = shift(@::Phrases);
	# &Apache::lonnet::logthis('phrase = '.$phrase);
	my $phrasedata;
	if ($phrase =~ /^(NOT\|OR\|AND)$/) {
	if ($phrase eq 'OR') {
	$phrasedata->{'or'}++;
	if (! @::Phrases) { $phrasedata = undef; last; }
	$phrase = shift(@::Phrases);
	} elsif ($phrase eq 'AND') {
	$phrasedata->{'and'}++;
	if (! @::Phrases) { $phrasedata = undef; last; }
	$phrase = shift(@::Phrases);
}	}
if ($Phrases[-1] ne '') {	if ($phrase eq 'NOT') {
$Phrases[-1] .= ' ';	$phrasedata->{'negate'}++;
	if (! @::Phrases) { $phrasedata = undef; last; }
	$phrase = shift(@::Phrases);
}	}
$Phrases[-1] .= $word;	}
	$phrasedata->{'phrase'} = $phrase;
	if ($related) {
	my @NewWords;
	(undef,@NewWords) = &related_version($phrasedata->{'phrase'});
	$phrasedata->{'related_words'} = \@NewWords;
	}
	push(@NewPhrases,$phrasedata);
	}
	#
	# Actually build the sql query from the phrases
	my $SQLQuery;
	foreach my $phrase (@NewPhrases) {
	my $query;
	if ($phrase->{'negate'}) {
	$query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"';
} else {	} else {
if ($word =~ s/^(\")//) {	$query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
$in_quotes=1;	}
	foreach my $related (@{$phrase->{'related_words'}}) {
	if ($phrase->{'negate'}) {
	$query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
	} else {
	$query .= ' OR '.$field.' LIKE "%'.$related.'%"';
}	}
push(@Phrases,$word);	}
	if ($SQLQuery) {
	if ($phrase->{'or'}) {
	$SQLQuery .= ' OR ('.$query.')';
	} else {
	$SQLQuery .= ' AND ('.$query.')';
	}
	} else {
	$SQLQuery = '('.$query.')';
}	}
}	}
#	#
#foreach my $p (@Phrases) {	# &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
# &Apache::lonnet::logthis(' subphrase = '.$p);
#}
#	#
return @Phrases;	return undef,$SQLQuery;
}	}

######################################################################	######################################################################
Line 1579 sub related_version {	Line 1870 sub related_version {
return $result,sort(@Words);	return $result,sort(@Words);
}	}

######################################################################
######################################################################

=pod

=item &build_SQL_query()

Builds a SQL query string from a logical expression with AND/OR keywords
using Text::Query and &recursive_SQL_query_builder()

=cut

######################################################################
######################################################################
sub build_SQL_query {
my ($field_name,$logic_statement)=@_;
my $q=new Text::Query('abc',
-parse => 'Text::Query::ParseAdvanced',
-build => 'Text::Query::Build');
$q->prepare($logic_statement);
my $matchexp=${$q}{'matchexp'}; chomp $matchexp;
&Apache::lonnet::logthis('matchexp = '.$matchexp);
my $sql_query=&recursive_SQL_query_build($field_name,$matchexp);
&Apache::lonnet::logthis('sql_query = '.$sql_query);
return $sql_query;
}

######################################################################	######################################################################
######################################################################	######################################################################
Line 1639 sub build_custommetadata_query {	Line 1904 sub build_custommetadata_query {
return $matchexp;	return $matchexp;
}	}

######################################################################
######################################################################

=pod

=item &recursive_SQL_query_build()

Recursively constructs an SQL query. Takes as input $dkey and $pattern.

=cut

######################################################################
######################################################################
sub recursive_SQL_query_build {
my ($dkey,$pattern)=@_;
my @matches=($pattern=~/(\[[^\]\|\[]*\])/g);
return $pattern unless @matches;
foreach my $match (@matches) {
$match=~/\[ (\w+)\s(.*) \]/;
my ($key,$value)=($1,$2);
my $replacement='';
if ($key eq 'literal') {
$replacement="($dkey LIKE \"\%$value\%\")";
} elsif (lc($key) eq 'not') {
$value=~s/LIKE/NOT LIKE/;
# $replacement="($dkey not like $value)";
$replacement="$value";
} elsif ($key eq 'and') {
$value=~/(.[\"\|\)]) ([\|\(\|\^].)/;
$replacement="($1 AND $2)";
} elsif ($key eq 'or') {
$value=~/(.[\"\|\)]) ([\|\(\|\^].)/;
$replacement="($1 OR $2)";
}
substr($pattern,
index($pattern,$match),
length($match),
$replacement);
}
&recursive_SQL_query_build($dkey,$pattern);
}

######################################################################	######################################################################
######################################################################	######################################################################
Line 1788 sub copyright_check {	Line 2012 sub copyright_check {
$Metadata->{'url'});	$Metadata->{'url'});
# Check for priv	# Check for priv
if (($Metadata->{'copyright'} eq 'priv') &&	if (($Metadata->{'copyright'} eq 'priv') &&
(($ENV{'user.name'} ne $resname) &&	(($env{'user.name'} ne $resname) &&
($ENV{'user.domain'} ne $resdom))) {	($env{'user.domain'} ne $resdom))) {
return 0;	return 0;
}	}
# Check for domain	# Check for domain
if (($Metadata->{'copyright'} eq 'domain') &&	if (($Metadata->{'copyright'} eq 'domain') &&
($ENV{'user.domain'} ne $resdom)) {	($env{'user.domain'} ne $resdom)) {
return 0;	return 0;
}	}
return 1;	return 1;
Line 1875 sub print_sort_form {	Line 2099 sub print_sort_form {
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1).	my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1).
&Apache::lonhtmlcommon::breadcrumbs	&Apache::lonhtmlcommon::breadcrumbs
(undef,'Searching','Searching',undef,undef,	(undef,'Searching','Searching',undef,undef,
! ($ENV{'form.catalogmode'} eq 'groupsearch'));	$env{'form.catalogmode'} ne 'groupsearch');

##	##
my %SortableFields=&Apache::lonlocal::texthash(	my %SortableFields=&Apache::lonlocal::texthash(
Line 1894 sub print_sort_form {	Line 2118 sub print_sort_form {
lastrevisiondate => 'Revision Date'	lastrevisiondate => 'Revision Date'
);	);
##	##
my $table = $ENV{'form.table'};	my $table = $env{'form.table'};
return if (! &ensure_db_and_table($r,$table));	return if (! &ensure_db_and_table($r,$table));
##	##
## Get the number of results	## Get the number of results
Line 1908 sub print_sort_form {	Line 2132 sub print_sort_form {
return;	return;
}	}
my $result;	my $result;
	my $html=&Apache::lonxml::xmlbegin();
$result.=<<END;	$result.=<<END;
<html>	$html
<head>	<head>
<script>	<script>
function change_sort() {	function change_sort() {
var newloc = "/adm/searchcat?phase=results";	var newloc = "/adm/searchcat?phase=results";
newloc += "&persistent_db_id=$ENV{'form.persistent_db_id'}";	newloc += "&persistent_db_id=$env{'form.persistent_db_id'}";
newloc += "&sortby=";	newloc += "&sortby=";
newloc += document.forms.statusform.elements.sortby.value;	newloc += document.forms.statusform.elements.sortby.value;
parent.resultsframe.location= newloc;	parent.resultsframe.location= newloc;
Line 1929 END	Line 2154 END

#<h2>Sort Results</h2>	#<h2>Sort Results</h2>
#Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">	#Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
# $ENV{'form.sortby'} = 'id' if (! defined($ENV{'form.sortby'}));	# $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'}));
# foreach (keys(%SortableFields)) {	# foreach (keys(%SortableFields)) {
# $result.="<option name=\"$_\"";	# $result.="<option name=\"$_\"";
# if ($_ eq $ENV{'form.sortby'}) {	# if ($_ eq $env{'form.sortby'}) {
# $result.=" selected ";	# $result.=" selected ";
# }	# }
# $result.=" >$SortableFields{$_}</option>\n";	# $result.=" >$SortableFields{$_}</option>\n";
Line 1983 my @Fullindicies;	Line 2208 my @Fullindicies;
=item &create_results_table()	=item &create_results_table()

Creates the table of search results by calling lonmysql. Stores the	Creates the table of search results by calling lonmysql. Stores the
table id in $ENV{'form.table'}	table id in $env{'form.table'}

Inputs: none.	Inputs: none.

Line 2014 sub create_results_table {	Line 2239 sub create_results_table {
FULLTEXT => [{'columns' => \@Fullindicies},],	FULLTEXT => [{'columns' => \@Fullindicies},],
} );	} );
if (defined($table)) {	if (defined($table)) {
$ENV{'form.table'} = $table;	$env{'form.table'} = $table;
return $table;	return $table;
}	}
return undef; # Error...	return undef; # Error...
Line 2115 Returns: html string for a 'revise searc	Line 2340 Returns: html string for a 'revise searc
######################################################################	######################################################################
sub revise_button {	sub revise_button {
my $revise_phase = 'disp_basic';	my $revise_phase = 'disp_basic';
$revise_phase = 'disp_adv' if ($ENV{'form.searchmode'} eq 'advanced');	$revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced');
my $newloc = '/adm/searchcat'.	my $newloc = '/adm/searchcat'.
'?persistent_db_id='.$ENV{'form.persistent_db_id'}.	'?persistent_db_id='.$env{'form.persistent_db_id'}.
'&cleargroupsort=1'.	'&cleargroupsort=1'.
'&phase='.$revise_phase;	'&phase='.$revise_phase;
my $result = qq{<input type="button" value="Revise search" name="revise"} .	my $result = qq{<input type="button" value="Revise search" name="revise"} .
Line 2142 results into MySQL.	Line 2367 results into MySQL.
sub run_search {	sub run_search {
my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_;	my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_;
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
$bodytag.=	$bodytag.=&Apache::lonhtmlcommon::breadcrumbs
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Searching',	(undef,'Searching','Searching',undef,undef,
undef,undef,! $ENV{'form.launch'});	$env{'form.catalogmode'} ne 'groupsearch');

my $connection = $r->connection;	my $connection = $r->connection;
#	#
# Print run_search header	# Print run_search header
#	#
	my $html=&Apache::lonxml::xmlbegin();
$r->print(<<END);	$r->print(<<END);
<html>	$html
<head><title>Search Status</title></head>	<head>
	<title>Search Status</title></head>
$bodytag	$bodytag
<form name="statusform" action="" method="post">	<form name="statusform" action="" method="post">
<input type="hidden" name="Queue" value="" />	<input type="hidden" name="Queue" value="" />
END	END
# Check to see if $pretty_string has more than one carriage return.	# Remove leading and trailing <br />
# Assume \n s are following <br /> s and truncate the value.	$pretty_string =~ s:^\s*<br />::i;
# (there is probably a better way)...	$pretty_string =~ s:(<br />)\s$::im;
my @Lines = split /<br \/>/,$pretty_string;	my @Lines = split("<br />",$pretty_string);
	# I keep getting blank items at the end of the list, hence the following:
	while ($Lines[-1] =~ /^\s*$/ && @Lines) {
	pop(@Lines);
	}
if (@Lines > 2) {	if (@Lines > 2) {
$pretty_string = join '<br \>',(@Lines[0..2],'....<br />');	$pretty_string = join '<br />',(@Lines[0..2],'....<br />');
}	}
$r->print(&mt("Search: [_1]",$pretty_string));	$r->print(&mt("Search: [_1]",$pretty_string));
$r->rflush();	$r->rflush();
Line 2181 END	Line 2411 END
my %Server_status;	my %Server_status;
#	#
# Check on the mysql table we will use to store results.	# Check on the mysql table we will use to store results.
my $table =$ENV{'form.table'};	my $table =$env{'form.table'};
if (! defined($table) \|\| $table eq '' \|\| $table =~ /\D/ ) {	if (! defined($table) \|\| $table eq '' \|\| $table =~ /\D/ ) {
$r->print("Unable to determine table id to store search results in.".	$r->print("Unable to determine table id to store search results in.".
"The search has been aborted.</body></html>");	"The search has been aborted.</body></html>");
Line 2191 END	Line 2421 END
if (! defined($table_status)) {	if (! defined($table_status)) {
$r->print("Unable to determine status of table.</body></html>");	$r->print("Unable to determine status of table.</body></html>");
&Apache::lonnet::logthis("Bogus table id of $table for ".	&Apache::lonnet::logthis("Bogus table id of $table for ".
"$ENV{'user.name'} @ $ENV{'user.domain'}");	"$env{'user.name'} @ $env{'user.domain'}");
&Apache::lonnet::logthis("lonmysql error = ".	&Apache::lonnet::logthis("lonmysql error = ".
&Apache::lonmysql::get_error());	&Apache::lonmysql::get_error());
return;	return;
Line 2216 END	Line 2446 END
<table>	<table>
<tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th><th></th></tr>	<tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th><th></th></tr>
<tr>	<tr>
<td><input type="text" name="status" value="" size="30" /></td>	<td><input type="text" name="status" value="" size="50" /></td>
<td><input type="text" name="count" value="" size="10" /></td>	<td><input type="text" name="count" value="" size="10" /></td>
<td><input type="text" name="seconds" value="" size="8" /></td>	<td><input type="text" name="seconds" value="" size="8" /></td>
<td>$revise</td>	<td>$revise</td>
Line 2255 END	Line 2485 END
#	#
# Loop through the servers we have contacted but do not	# Loop through the servers we have contacted but do not
# have results from yet, looking for results.	# have results from yet, looking for results.
while (my ($server,$status) = each(%Server_status)) {	foreach my $server (keys(%Server_status)) {
last if ($connection->aborted());	last if ($connection->aborted());
&update_seconds($r);	&update_seconds($r);
	my $status = $Server_status{$server};
if ($status eq 'con_lost') {	if ($status eq 'con_lost') {
delete ($Server_status{$server});	delete ($Server_status{$server});
next;	next;
}	}
$status=~/^([\.\w]+)$/;	$status=~s\|/\|\|g;
my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$1;	my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$status;
if (-e $datafile && ! -e "$datafile.end") {	if (-e $datafile && ! -e "$datafile.end") {
&update_status($r,&mt('Receiving results from [_1]',$server));	&update_status($r,&mt('Receiving results from [_1]',$server));
next;	next;
Line 2294 END	Line 2525 END
my %Fields = &parse_raw_result($result,$server);	my %Fields = &parse_raw_result($result,$server);
$Fields{'hostname'} = $server;	$Fields{'hostname'} = $server;
#	#
	# Skip if external and we did not want that
	next if ((! $env{'form.inclext'}) && ($Fields{'url'}=~/^\/ext\//));
# Skip based on copyright	# Skip based on copyright
next if (! &copyright_check(\%Fields));	next if (! &copyright_check(\%Fields));

#	#
# Store the result in the mysql database	# Store the result in the mysql database
my $result = &Apache::lonmysql::store_row($table,\%Fields);	my $result = &Apache::lonmysql::store_row($table,\%Fields);
Line 2329 END	Line 2563 END
# results to get, so let the client know the top frame needs to be	# results to get, so let the client know the top frame needs to be
# loaded from /adm/searchcat	# loaded from /adm/searchcat
$r->print("</body></html>");	$r->print("</body></html>");
# if ($ENV{'form.catalogmode'} ne 'groupsearch') {	# if ($env{'form.catalogmode'} ne 'groupsearch') {
$r->print("<script>".	$r->print("<script>".
"window.location='/adm/searchcat?".	"window.location='/adm/searchcat?".
"phase=sort&".	"phase=sort&".
"persistent_db_id=$ENV{'form.persistent_db_id'}';".	"persistent_db_id=$env{'form.persistent_db_id'}';".
"</script>");	"</script>");
# }	# }
return;	return;
Line 2388 sub display_results {	Line 2622 sub display_results {
##	##
## Set viewing function	## Set viewing function
##	##
my $viewfunction = $Views{$ENV{'form.viewselect'}};	my $viewfunction = $Views{$env{'form.viewselect'}};
if (!defined($viewfunction)) {	if (!defined($viewfunction)) {
$r->print("Internal Error - Bad view selected.\n");	$r->print("Internal Error - Bad view selected.\n");
$r->rflush();	$r->rflush();
Line 2404 sub display_results {	Line 2638 sub display_results {
my $action = "/adm/searchcat?phase=results";	my $action = "/adm/searchcat?phase=results";
##	##
## Deal with groupsearch by opening the groupsearch db file.	## Deal with groupsearch by opening the groupsearch db file.
if ($ENV{'form.catalogmode'} eq 'groupsearch') {	if ($env{'form.catalogmode'} eq 'groupsearch') {
if (! tie(%groupsearch_db,'GDBM_File',$diropendb,	if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
&GDBM_WRCREAT(),0640)) {	&GDBM_WRCREAT(),0640)) {
$r->print('Unable to store import results.</form></body></html>');	$r->print('Unable to store import results.</form></body></html>');
Line 2414 sub display_results {	Line 2648 sub display_results {
}	}
##	##
## Prepare the table for querying	## Prepare the table for querying
my $table = $ENV{'form.table'};	my $table = $env{'form.table'};
return if (! &ensure_db_and_table($r,$table));	return if (! &ensure_db_and_table($r,$table));
##	##
## Get the number of results	## Get the number of results
Line 2428 sub display_results {	Line 2662 sub display_results {
}	}
##	##
## Determine how many results we need to get	## Determine how many results we need to get
$ENV{'form.start'} = 1 if (! exists($ENV{'form.start'}));	$env{'form.start'} = 1 if (! exists($env{'form.start'}));
$ENV{'form.show'} = 20 if (! exists($ENV{'form.show'}));	$env{'form.show'} = 20 if (! exists($env{'form.show'}));
if (exists($ENV{'form.prev'})) {	if (exists($env{'form.prev'})) {
$ENV{'form.start'} -= $ENV{'form.show'};	$env{'form.start'} -= $env{'form.show'};
} elsif (exists($ENV{'form.next'})) {	} elsif (exists($env{'form.next'})) {
$ENV{'form.start'} += $ENV{'form.show'};	$env{'form.start'} += $env{'form.show'};
}	}
$ENV{'form.start'} = 1 if ($ENV{'form.start'}<1);	$env{'form.start'} = 1 if ($env{'form.start'}<1);
$ENV{'form.start'} = $total_results if ($ENV{'form.start'}>$total_results);	$env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
my $min = $ENV{'form.start'};	my $min = $env{'form.start'};
my $max;	my $max;
if ($ENV{'form.show'} eq 'all') {	if ($env{'form.show'} eq 'all') {
$max = $total_results ;	$max = $total_results ;
} else {	} else {
$max = $min + $ENV{'form.show'} - 1;	$max = $min + $env{'form.show'} - 1;
$max = $total_results if ($max > $total_results);	$max = $total_results if ($max > $total_results);
}	}
##	##
Line 2452 sub display_results {	Line 2686 sub display_results {
&hidden_field('persistent_db_id').	&hidden_field('persistent_db_id').
&hidden_field('start')	&hidden_field('start')
);	);
	#
	# Build sorting selector
	my @fields =
	(
	{key=>'default' },
	{key=>'title' },
	{key =>'author' },
	{key =>'subject'},
	{key =>'url',desc=>'URL'},
	{key =>'keywords'},
	{key =>'language'},
	{key =>'creationdate'},
	{key =>'lastrevisiondate'},
	{key =>'owner'},
	{key =>'copyright'},
	{key =>'authorspace'},
	{key =>'lowestgradelevel'},
	{key =>'highestgradelevel'},
	{key =>'standards',desc=>'Standards'},
	{key =>'count',desc=>'Number of accesses'},
	{key =>'stdno',desc=>'Students Attempting'},
	{key =>'avetries',desc=>'Average Number of Tries'},
	{key =>'difficulty',desc=>'Mean Degree of Difficulty'},
	{key =>'disc',desc=>'Mean Degree of Discrimination'},
	{key =>'clear',desc=>'Evaluation: Clear'},
	{key =>'technical',desc=>'Evaluation: Technically Correct'},
	{key =>'correct',desc=>'Evaluation: Material is Correct'},
	{key =>'helpful',desc=>'Evaluation: Material is Helpful'},
	{key =>'depth',desc=>'Evaluation: Material has Depth'},
	);
	my %fieldnames = &Apache::lonmeta::fieldnames();
	my @field_order;
	foreach my $field_data (@fields) {
	push(@field_order,$field_data->{'key'});
	if (! exists($field_data->{'desc'})) {
	$field_data->{'desc'}=$fieldnames{$field_data->{'key'}};
	} else {
	if (! defined($field_data->{'desc'})) {
	$field_data->{'desc'} = ucfirst($field_data->{'key'});
	}
	$field_data->{'desc'} = &mt($field_data->{'desc'});
	}
	}
	my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields;
	$sort_fields{'select_form_order'} = \@field_order;
	$env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'}));
	$env{'form.sortfield'} = 'count' if (! exists($env{'form.sortfield'}));
	if (! exists($env{'form.sortorder'})) {
	if ($env{'form.sortfield'}=~/^(count\|stdno\|disc\|clear\|technical\|correct\|helpful)$/) {
	$env{'form.sortorder'}='desc';
	} else {
	$env{'form.sortorder'}='asc';
	}
	}
	my $sortform = &mt('Sort by [_1] [_2]',
	&Apache::loncommon::select_form($env{'form.sortfield'},
	'sortfield',
	%sort_fields),
	&Apache::loncommon::select_form($env{'form.sortorder'},
	'sortorder',
	(asc =>&mt('Ascending'),
	desc=>&mt('Descending')
	))
	);
##	##
## Output links (if necessary) for 'prev' and 'next' pages.	## Output links (if necessary) for 'prev' and 'next' pages.
$r->print	$r->print
('<table width="100%"><tr><td width="50%" align="right">'.	('<table width="100%"><tr><td width="25%" align="right">'.
&prev_next_buttons($min,$ENV{'form.show'},$total_results).	'<nobr>'.$sortform.'</nobr>'.
	'</td><td width="25%" align="right">'.
	&prev_next_buttons($min,$env{'form.show'},$total_results).
'</td><td align="right">'.	'</td><td align="right">'.
&viewoptions().'</td></tr></table>'	&viewoptions().'</td></tr></table>'
);	);
Line 2466 sub display_results {	Line 2766 sub display_results {
"</form></body></html>");	"</form></body></html>");
return;	return;
} else {	} else {
$r->print	$r->print('<center>'.
("<center>Results $min to $max out of $total_results</center>\n");	mt('Results [_1] to [_2] out of [_3]',
	$min,$max,$total_results).
	"</center>\n");
}	}
##	##
## Get results from MySQL table	## Get results from MySQL table
my @Results = &Apache::lonmysql::get_rows($table,	my $sort_command = 'id>='.$min.' AND id<='.$max;
'id>='.$min.' AND id<='.$max);	my $order;
	if (exists($env{'form.sortorder'})) {
	if ($env{'form.sortorder'} eq 'asc') {
	$order = 'ASC';
	} elsif ($env{'form.sortorder'} eq 'desc') {
	$order = 'DESC';
	} else {
	$order = '';
	}
	} else {
	$order = '';
	}
	if ($env{'form.sortfield'} ne 'default' &&
	exists($sort_fields{$env{'form.sortfield'}})) {
	$sort_command = $env{'form.sortfield'}.' IS NOT NULL '.
	'ORDER BY '.$env{'form.sortfield'}.' '.$order.
	' LIMIT '.($min-1).','.($max-$min+1);
	}
	my @Results = &Apache::lonmysql::get_rows($table,$sort_command);
##	##
## Loop through the results and output them.	## Loop through the results and output them.
foreach my $row (@Results) {	foreach my $row (@Results) {
Line 2498 sub display_results {	Line 2818 sub display_results {
} else {	} else {
$r->print	$r->print
('<center>'.	('<center>'.
&prev_next_buttons($min,$ENV{'form.show'},$total_results,	&prev_next_buttons($min,$env{'form.show'},$total_results,
"table=".$ENV{'form.table'}.	"table=".$env{'form.table'}.
"&phase=results".	"&phase=results".
"&persistent_db_id=".	"&persistent_db_id=".
$ENV{'form.persistent_db_id'})	$env{'form.persistent_db_id'})
."</center>\n"	."</center>\n"
);	);
}	}
Line 2520 sub display_results {	Line 2840 sub display_results {
=item &catalogmode_output($title,$url,$fnum,$checkbox_num)	=item &catalogmode_output($title,$url,$fnum,$checkbox_num)

Returns html needed for the various catalog modes. Gets inputs from	Returns html needed for the various catalog modes. Gets inputs from
$ENV{'form.catalogmode'}. Stores data in %groupsearch_db.	$env{'form.catalogmode'}. Stores data in %groupsearch_db.

=cut	=cut

Line 2529 $ENV{'form.catalogmode'}. Stores data i	Line 2849 $ENV{'form.catalogmode'}. Stores data i
sub catalogmode_output {	sub catalogmode_output {
my $output = '';	my $output = '';
my ($title,$url,$fnum,$checkbox_num) = @_;	my ($title,$url,$fnum,$checkbox_num) = @_;
if ($ENV{'form.catalogmode'} eq 'interactive') {	if ($env{'form.catalogmode'} eq 'interactive') {
$title=~ s/\'/\\\'/g;	$title=~ s/\'/\\\'/g;
if ($ENV{'form.catalogmode'} eq 'interactive') {	if ($env{'form.catalogmode'} eq 'interactive') {
$output.=<<END	$output.=<<END
<font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"	<font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
onClick="javascript:select_data('$title','$url')">	onClick="javascript:select_data('$title','$url')">
</font>	</font>
END	END
}	}
} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') {	} elsif ($env{'form.catalogmode'} eq 'groupsearch') {
$groupsearch_db{"pre_${fnum}_link"}=$url;	$groupsearch_db{"pre_${fnum}_link"}=$url;
$groupsearch_db{"pre_${fnum}_title"}=$title;	$groupsearch_db{"pre_${fnum}_title"}=$title;
$output.=<<END;	$output.=<<END;
Line 2628 sub handle_custom_fields {	Line 2948 sub handle_custom_fields {
my $customshow='';	my $customshow='';
my $extrashow='';	my $extrashow='';
my @customfields;	my @customfields;
if ($ENV{'form.customshow'}) {	if ($env{'form.customshow'}) {
$customshow=$ENV{'form.customshow'};	$customshow=$env{'form.customshow'};
$customshow=~s/[^\w\s]//g;	$customshow=~s/[^\w\s]//g;
my @fields=map {	my @fields=map {
"<font color=\"#008000\">$_:</font><!-- $_ -->";	"<font color=\"#008000\">$_:</font><!-- $_ -->";
Line 2663 sub handle_custom_fields {	Line 2983 sub handle_custom_fields {
Output the proper html headers and javascript code to deal with different	Output the proper html headers and javascript code to deal with different
calling modes.	calling modes.

Takes most inputs directly from %ENV, except $mode.	Takes most inputs directly from %env, except $mode.

=over 4	=over 4

Line 2708 sub search_results_header {	Line 3028 sub search_results_header {
# output beginning of search page	# output beginning of search page
# conditional output of script functions dependent on the mode in	# conditional output of script functions dependent on the mode in
# which the search was invoked	# which the search was invoked
if ($ENV{'form.catalogmode'} eq 'interactive'){	if ($env{'form.catalogmode'} eq 'interactive'){
if (! exists($ENV{'form.mode'}) \|\| $ENV{'form.mode'} ne 'edit') {	if (! exists($env{'form.mode'}) \|\| $env{'form.mode'} ne 'edit') {
$result.=<<SCRIPT;	$result.=<<SCRIPT;
<script type="text/javascript">	<script type="text/javascript">
function select_data(title,url) {	function select_data(title,url) {
Line 2729 sub search_results_header {	Line 3049 sub search_results_header {
}	}
</script>	</script>
SCRIPT	SCRIPT
} elsif ($ENV{'form.mode'} eq 'edit') {	} elsif ($env{'form.mode'} eq 'edit') {
my $form = $ENV{'form.form'};	my $form = $env{'form.form'};
my $element = $ENV{'form.element'};	my $element = $env{'form.element'};
my $titleelement = $ENV{'form.titleelement'};	my $titleelement = $env{'form.titleelement'};
my $changetitle;	my $changetitle;
if (!$titleelement) {	if (!$titleelement) {
$changetitle='function changeTitle(val) {}';	$changetitle='function changeTitle(val) {}';
Line 2769 function changeURL(val) {	Line 3089 function changeURL(val) {
SCRIPT	SCRIPT
}	}
}	}
$result.=<<SCRIPT if $ENV{'form.catalogmode'} eq 'groupsearch';	$result.=<<SCRIPT if $env{'form.catalogmode'} eq 'groupsearch';
<script type="text/javascript">	<script type="text/javascript">
function queue(checkbox_num,val) {	function queue(checkbox_num,val) {
if (document.forms.results.returnvalues.length != "undefined" &&	if (document.forms.results.returnvalues.length != "undefined" &&
Line 2789 SCRIPT	Line 3109 SCRIPT
}	}
function select_group() {	function select_group() {
parent.window.location=	parent.window.location=
"/adm/groupsort?mode=$ENV{'form.mode'}&catalogmode=groupsearch&acts="+	"/adm/groupsort?mode=$env{'form.mode'}&catalogmode=groupsearch&acts="+
parent.statusframe.document.forms.statusform.elements.Queue.value;	parent.statusframe.document.forms.statusform.elements.Queue.value;
}	}
</script>	</script>
Line 2808 END	Line 3128 END
######################################################################	######################################################################
sub search_status_header {	sub search_status_header {
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
	my $html=&Apache::lonxml::xmlbegin();
return <<ENDSTATUS;	return <<ENDSTATUS;
<html><head><title>Search Status</title></head>	$html
	<head>
	<title>Search Status</title></head>
$bodytag	$bodytag
<h3>Search Status</h3>	<h3>Search Status</h3>
Sending search request to LON-CAPA servers.<br />	Sending search request to LON-CAPA servers.<br />
Line 2817 ENDSTATUS	Line 3140 ENDSTATUS
}	}

sub results_link {	sub results_link {
my $basic_link = "/adm/searchcat?"."&table=".$ENV{'form.table'}.	my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
"&persistent_db_id=".$ENV{'form.persistent_db_id'};	"&persistent_db_id=".$env{'form.persistent_db_id'};
my $results_link = $basic_link."&phase=results".	my $results_link = $basic_link."&phase=results".
"&pause=1"."&start=1";	"&pause=1"."&start=1";
return $results_link;	return $results_link;
Line 2828 sub results_link {	Line 3151 sub results_link {
######################################################################	######################################################################
sub print_frames_interface {	sub print_frames_interface {
my $r = shift;	my $r = shift;
my $basic_link = "/adm/searchcat?"."&table=".$ENV{'form.table'}.	my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
"&persistent_db_id=".$ENV{'form.persistent_db_id'};	"&persistent_db_id=".$env{'form.persistent_db_id'};
my $run_search_link = $basic_link."&phase=run_search";	my $run_search_link = $basic_link."&phase=run_search";
my $results_link = &results_link();	my $results_link = &results_link();
	my $html=&Apache::lonxml::xmlbegin();
my $result = <<"ENDFRAMES";	my $result = <<"ENDFRAMES";
<html>	$html
<head>	<head>
<script>	<script>
var targetwin = opener;	var targetwin = opener;
Line 2912 extra custom metadata to show.	Line 3236 extra custom metadata to show.
sub detailed_citation_view {	sub detailed_citation_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
my $result;	my $result;
	my $jumpurl=$values{'url'};
	$jumpurl=~s/^\/ext\//http\:\/\//;
$result .= '<b>'.$prefix.	$result .= '<b>'.$prefix.
'<img src="'.&Apache::loncommon::icon($values{'url'}).' " />'.' '.	'<img src="'.&Apache::loncommon::icon($values{'url'}).' " />'.' '.
'<a href="http://'.$ENV{'HTTP_HOST'}.$values{'url'}.'" '.	'<a href="'.$jumpurl.'" '.
'target="search_preview">'.$values{'title'}."</a></b>\n";	'target="search_preview">'.$values{'title'}."</a></b>\n";
$result .= "<p>\n";	$result .= "<p>\n";
$result .= '<b>'.$values{'author'}.'</b>,'.	$result .= '<b>'.$values{'author'}.'</b>,'.
Line 2972 sub detailed_citation_view {	Line 3298 sub detailed_citation_view {
{ name=>'goto_list',	{ name=>'goto_list',
type => 'list',	type => 'list',
translate => 'Resources that follow this resource in maps',},	translate => 'Resources that follow this resource in maps',},
{ name=>'usage_list',	{ name=>'sequsage_list',
type => 'list',	type => 'list',
translate => 'Resources using or importing resource',},	translate => 'Resources using or importing resource',},
) {	) {
Line 2983 sub detailed_citation_view {	Line 3309 sub detailed_citation_view {
foreach my $item (split(',',$values{$field->{'name'}})){	foreach my $item (split(',',$values{$field->{'name'}})){
$result .= '<li>'.	$result .= '<li>'.
'<a target="search_preview" '.	'<a target="search_preview" '.
'href="/res/'.$item.'">'.$item.'</a></li>';	'href="'.$jumpurl.'">'.$item.'</a></li>';
}	}
$result .= '</ul>';	$result .= '</ul>';
} elsif (exists($field->{'format'}) && $field->{'format'} ne ''){	} elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
$result.= &mt($field->{'translate'},	$result.= &mt($field->{'translate'},
sprintf($field->{'format'},	sprintf($field->{'format'},
$values{$field->{'name'}})).'<br />'."\n";	$values{$field->{'name'}}))."<br />\n";
} else {	} else {
if ($field->{'special'} eq 'url link') {	if ($field->{'special'} eq 'url link') {
$result.=	$result.=
&mt($field->{'translate'},	&mt($field->{'translate'},
'<a href="'.$values{'url'}.'" '.	'<a href="'.$jumpurl.'" '.
'target="search_preview">'.	'target="search_preview">'.
$values{$field->{'name'}}.	$values{$field->{'name'}}.
'</a>');	'</a>');
Line 3029 sub detailed_citation_view {	Line 3355 sub detailed_citation_view {
sub summary_view {	sub summary_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
my $icon=&Apache::loncommon::icon($values{'url'});	my $icon=&Apache::loncommon::icon($values{'url'});
my $result=<<END;	my $result=qq{$prefix<img src="$icon" />};
$prefix<img src="$icon" />	if (exists($env{'form.sortfield'}) &&
<a href="http://$ENV{'HTTP_HOST'}$values{'url'}"	$env{'form.sortfield'} !~ /^(default\|
target='search_preview'>$values{'author'}</a><br />	author\|
$values{'title'}<br />	url\|
$values{'owner'} -- $values{'lastrevisiondate'}<br />	title\|
	owner\|
	lastrevisiondate\|
	copyright)$/x) {
	my $tmp = $values{$env{'form.sortfield'}};
	if (! defined($tmp)) { $tmp = 'undefined'; }
	$result .= ' '.$tmp.' ';
	}
	my $jumpurl=$values{'url'};
	$jumpurl=~s/^\/ext\//http\:\/\//;

	$result.=<<END;
	<a href="$jumpurl"
	target='search_preview'>$values{'title'}</a><br />
	$values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br />
$values{'copyrighttag'}<br />	$values{'copyrighttag'}<br />
$values{'extrashow'}	$values{'extrashow'}
</p>	</p>
Line 3056 END	Line 3396 END
######################################################################	######################################################################
sub compact_view {	sub compact_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
	my $jumpurl=$values{'url'};
	$jumpurl=~s/^\/ext\//http\:\/\//;

my $result =	my $result =
$prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).	$prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'">';
'"> <a href="'.$values{'url'}.'" target="search_preview">'.	if (exists($env{'form.sortfield'}) &&
	$env{'form.sortfield'} !~ /^(default\|author\|url\|title)$/) {
	my $tmp = $values{$env{'form.sortfield'}};
	if (! defined($tmp)) { $tmp = 'undefined'; }
	$result .= ' '.$tmp.' ';
	}
	$result.=' <a href="'.$jumpurl.'" target="search_preview">'.
$values{'title'}.'</a>'.(' 'x2).	$values{'title'}.'</a>'.(' 'x2).
'<b>'.$values{'author'}.'</b><br />';	'<b>'.$values{'author'}.'</b> ('.$values{'domain'}.')<br />';
return $result;	return $result;
}	}

Line 3080 sub fielded_format_view {	Line 3429 sub fielded_format_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
my $icon=&Apache::loncommon::icon($values{'url'});	my $icon=&Apache::loncommon::icon($values{'url'});
my %Translated = &Apache::lonmeta::fieldnames();	my %Translated = &Apache::lonmeta::fieldnames();
	my $jumpurl=$values{'url'};
	$jumpurl=~s/^\/ext\//http\:\/\//;

my $result=<<END;	my $result=<<END;
$prefix <img src="$icon" />	$prefix <img src="$icon" />
<dl>	<dl>
<dt>URL:</dt>	<dt>URL:</dt>
<dd><a href="http://$ENV{'HTTP_HOST'}$values{'url'}"	<dd><a href="$jumpurl"
target='search_preview'>$values{'url'}</a></dd>	target='search_preview'>$values{'url'}</a></dd>
END	END
foreach my $field ('title','author','subject','keywords','notes',	foreach my $field ('title','author','domain','subject','keywords','notes',
'mimetag','language','creationdate','lastrevisiondate',	'mimetag','language','creationdate','lastrevisiondate',
'owner','copyrighttag','hostname','abstract') {	'owner','copyrighttag','hostname','abstract') {
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".	$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
Line 3128 sub xml_sgml_view {	Line 3480 sub xml_sgml_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
my $xml = '<LonCapaResource>'."\n";	my $xml = '<LonCapaResource>'."\n";
# The usual suspects	# The usual suspects
foreach my $field ('url','title','author','subject','keywords','notes') {	foreach my $field ('url','title','author','subject','keywords','notes','domain') {
$xml .= qq{<$field>$values{$field}</$field>}."\n";	$xml .= qq{<$field>$values{$field}</$field>}."\n";
}	}
#	#
Line 3211 sub filled {	Line 3563 sub filled {

=pod	=pod

	=item &output_unparsed_phrase_error()

	=cut

	######################################################################
	######################################################################
	sub output_unparsed_phrase_error {
	my ($r,$closebutton,$parms,$hidden_fields,$field)=@_;
	my $errorstring;
	if ($field eq 'basicexp') {
	$errorstring = &mt('Unable to understand the search phrase <i>[_1]</i>. Please modify your search.',$env{'form.basicexp'});
	} else {
	$errorstring = &mt('Unable to understand the search phrase <b>[_1]</b>:<i>[_2]</i>.',$field,$env{'form.'.$field});
	}
	my $bodytag = &Apache::loncommon::bodytag('Search');
	my $heading = &mt('Unparsed Field');
	my $revise = &mt('Revise search request');
	# make query information persistent to allow for subsequent revision
	my $html=&Apache::lonxml::xmlbegin();
	$r->print(<<ENDPAGE);
	$html
	<head>
	<title>The LearningOnline Network with CAPA</title>
	</head>
	$bodytag
	<form method="post" action="/adm/searchcat">
	$hidden_fields
	$closebutton
	<hr />
	<h2>$heading</h2>
	<p>
	$errorstring
	</p>
	<p>
	<a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
	</p>
	</body>
	</html>
	ENDPAGE
	}

	######################################################################
	######################################################################

	=pod

=item &output_blank_field_error()	=item &output_blank_field_error()

Output a complete page that indicates the user has not filled in enough	Output a complete page that indicates the user has not filled in enough
Line 3228 $parms is extra information to include i	Line 3626 $parms is extra information to include i
######################################################################	######################################################################
sub output_blank_field_error {	sub output_blank_field_error {
my ($r,$closebutton,$parms,$hidden_fields)=@_;	my ($r,$closebutton,$parms,$hidden_fields)=@_;
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	my $bodytag=&Apache::loncommon::bodytag('Search');
# make query information persistent to allow for subsequent revision	my $errormsg = &mt('You did not fill in enough information for the search to be started. You need to fill in relevant fields on the search page in order for a query to be processed.');
$r->print(<<BEGINNING);	my $revise = &mt('Revise Search Request');
<html>	my $heading = &mt('Unactionable Search Queary');
	my $html=&Apache::lonxml::xmlbegin();
	$r->print(<<ENDPAGE);
	$html
<head>	<head>
<title>The LearningOnline Network with CAPA</title>	<title>The LearningOnline Network with CAPA</title>
BEGINNING
$r->print(<<RESULTS);
</head>	</head>
$bodytag	$bodytag
<img align='right' src='/adm/lonIcons/lonlogos.gif' />
<h1>Search Catalog</h1>
<form method="post" action="/adm/searchcat">	<form method="post" action="/adm/searchcat">
$hidden_fields	$hidden_fields
<a href="/adm/searchcat?$parms&persistent_db_id=$ENV{'form.persistent_db_id'}"
>Revise search request</a>
$closebutton	$closebutton
<hr />	<hr />
<h3>Unactionable search query.</h3>	<h2>$heading</h2>
<p>	<p>
You did not fill in enough information for the search to be started.	$errormsg
You need to fill in relevant fields on the search page in order	</p>
for a query to be processed.	<p>
	<a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
</p>	</p>
</body>	</body>
</html>	</html>
RESULTS	ENDPAGE
	return;
}	}

######################################################################	######################################################################
Line 3280 sub output_date_error {	Line 3677 sub output_date_error {
my ($r,$message,$closebutton,$hidden_fields)=@_;	my ($r,$message,$closebutton,$hidden_fields)=@_;
# make query information persistent to allow for subsequent revision	# make query information persistent to allow for subsequent revision
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
	my $html=&Apache::lonxml::xmlbegin();
$r->print(<<RESULTS);	$r->print(<<RESULTS);
<html>	$html
<head>	<head>
<title>The LearningOnline Network with CAPA</title>	<title>The LearningOnline Network with CAPA</title>
</head>	</head>

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

Removed from v.1.225
changed lines
	Added in v.1.249