loncom/interface/lonsearchcat.pm - diff

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Diff for /loncom/interface/lonsearchcat.pm between versions 1.222 and 1.257

version 1.222, 2004/05/05 14:14:10	version 1.257, 2006/03/19 21:54:41
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;
	use Apache::lonindexer();

######################################################################	######################################################################
######################################################################	######################################################################
Line 91 my %persistent_db; # gdbm hash which h	Line 94 my %persistent_db; # gdbm hash which h
# The different view modes and associated functions	# The different view modes and associated functions

my %Views = ("detailed" => \&detailed_citation_view,	my %Views = ("detailed" => \&detailed_citation_view,
	"detailedpreview" => \&detailed_citation_preview,
"summary" => \&summary_view,	"summary" => \&summary_view,
	"summarypreview" => \&summary_preview,
"fielded" => \&fielded_format_view,	"fielded" => \&fielded_format_view,
"xml" => \&xml_sgml_view,	"xml" => \&xml_sgml_view,
"compact" => \&compact_view);	"compact" => \&compact_view);
Line 111 sub handler {	Line 116 sub handler {
my $diropendb; # The full path to the (temporary) search database file.	my $diropendb; # The full path to the (temporary) search database file.
# This is set and used in &handler() and is also used in	# This is set and used in &handler() and is also used in
# &output_results().	# &output_results().
my $bodytag; # LON-CAPA standard body tag, gotten from
# &Apache::lonnet::bodytag.
# No title, no table, just a <body> tag.

my $loaderror=&Apache::lonnet::overloaderror($r);	my $loaderror=&Apache::lonnet::overloaderror($r);
if ($loaderror) { return $loaderror; }	if ($loaderror) { return $loaderror; }
Line 142 sub handler {	Line 144 sub handler {
## printing the results. We only need (theoretically) to do	## printing the results. We only need (theoretically) to do
## this once, so the pause indicator is deleted	## this once, so the pause indicator is deleted
##	##
if (exists($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);
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 $msg =
<html>	'We were unable to retrieve data describing your search. '.
<head><title>LON-CAPA Search Error</title></head>	'This is a serious error and has been logged. '.
$bodytag	'Please alert your LON-CAPA administrator.';
We were unable to retrieve data describing your search. This is a serious	return &error_page($r,$msg);
error and has been logged. Please alert your LON-CAPA administrator.
</body>
</html>
END
return OK;
}	}
}	}
} else {	} else {
Line 210 END	Line 209 END
## Clear out old values from groupsearch database	## Clear out old values from groupsearch database
##	##
untie %groupsearch_db if (tied(%groupsearch_db));	untie %groupsearch_db if (tied(%groupsearch_db));
if (($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 $msg = 'Unable to tie hash to db file.';
'Unable to tie hash to db file</body></html>');	return &error_page($r,$msg);
return OK;
}	}
}	}
##	##
## 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 .= '<input type="hidden" name="catalogmode" value="'.	$hidden_fields .= &hidden_field('catalogmode');
$ENV{'form.catalogmode'}.'" />'."\n";	}
}	if (exists($env{'form.form'})) {
if (exists($ENV{'form.form'})) {	$hidden_fields .= &hidden_field('form');
$hidden_fields .= '<input type="hidden" name="form" value="'.	}
$ENV{'form.form'}.'" />'."\n";	if (exists($env{'form.element'})) {
}	$hidden_fields .= &hidden_field('element');
if (exists($ENV{'form.element'})) {	}
$hidden_fields .= '<input type="hidden" name="element" value="'.	if (exists($env{'form.titleelement'})) {
$ENV{'form.element'}.'" />'."\n";	$hidden_fields .= &hidden_field('titleelement');
}	}
if (exists($ENV{'form.titleelement'})) {	if (exists($env{'form.mode'})) {
$hidden_fields .= '<input type="hidden" name="titleelement" value="'.	$hidden_fields .= &hidden_field('mode');
$ENV{'form.titleelement'}.'" />'."\n";
}
if (exists($ENV{'form.mode'})) {
$hidden_fields .= '<input type="hidden" name="mode" value="'.
$ENV{'form.mode'}.'" />'."\n";
}	}
##	##
## Configure dynamic components of interface	## Configure dynamic components of interface
##	##
if ($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()'";	$closebutton .="onClick='self.close()'";
Line 280 END	Line 273 END
##	##
## Sanity checks on form elements	## Sanity checks on form elements
##	##
if (!defined($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')) {
# Set up table
if (! defined(&create_results_table())) {
my $errorstring=&Apache::lonmysql::get_error();
&Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
'needed table. lonmysql error:'.
$errorstring);
$r->print(<<END);
<html><head><title>Search Error</title></head>
$bodytag
Unable to create table in which to store search results.
The search has been aborted.
</body>
</html>
END
return OK;
}
delete($ENV{'form.launch'});
if (! &make_form_data_persistent($r,$persistent_db_file)) {
$r->print(<<END);
<html><head><title>Search Error</title></head>
$bodytag
Unable to properly store search information. The search has been aborted.
</body>
</html>
END
return OK;
}
#	#
# We are running a search	# We are running a search, try to parse it
my ($query,$customquery,$customshow,$libraries) =	my ($query,$customquery,$customshow,$libraries) =
(undef,undef,undef,undef);	(undef,undef,undef,undef);
my $pretty_string;	my $pretty_string;
if ($ENV{'form.phase'} eq 'basic_search') {	if ($env{'form.phase'} eq 'basic_search') {
($query,$pretty_string,$libraries) =	($query,$pretty_string,$libraries) =
&parse_basic_search($r,$closebutton,$hidden_fields);	&parse_basic_search($r,$closebutton,$hidden_fields);
	return OK if (! defined($query));
	&make_persistent({ basicexp => $env{'form.basicexp'}},
	$persistent_db_file);
} else { # Advanced search	} else { # Advanced search
($query,$customquery,$customshow,$libraries,$pretty_string)	($query,$customquery,$customshow,$libraries,$pretty_string)
= &parse_advanced_search($r,$closebutton,$hidden_fields);	= &parse_advanced_search($r,$closebutton,$hidden_fields);
Line 386 END	Line 350 END
libraries => $libraries,	libraries => $libraries,
pretty_string => $pretty_string },	pretty_string => $pretty_string },
$persistent_db_file);	$persistent_db_file);
	#
	# Set up table
	if (! defined(&create_results_table())) {
	my $errorstring=&Apache::lonmysql::get_error();
	&Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
	'needed table. lonmysql error:'.
	$errorstring);

	my $msg =
	'Unable to create table in which to store search results. '.
	'The search has been aborted.';
	return &error_page($r,$msg);
	}
	delete($env{'form.launch'});
	if (! &make_form_data_persistent($r,$persistent_db_file)) {
	my $msg=
	'Unable to properly store search information. '.
	'The search has been aborted.';
	return &error_page($r,$msg);
	}
##	##
## Print out the frames interface	## Print out the frames interface
##	##
&print_frames_interface($r);	if (defined($query)) {
	&print_frames_interface($r);
	}
}	}
return OK;	return OK;
}	}

	sub error_page {
	my ($r,$msg) = @_;
	$r->print(&Apache::loncommon::start_page('Search Error').
	&mt($msg).
	&Apache::loncommon::end_page());
	return OK;
	}

#	#
# The mechanism used to store values away and retrieve them does not	# The mechanism used to store values away and retrieve them does not
# handle the case of missing environment variables being significant.	# handle the case of missing environment variables being significant.
Line 401 END	Line 395 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'} = '';
}	}
}	}
}	}

	sub hidden_field {
	my ($name,$value) = @_;
	if (! defined($value)) {
	$value = $env{'form.'.$name};
	}
	return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
	}

######################################################################	######################################################################
######################################################################	######################################################################
##	##
Line 436 my %alreadyseen;	Line 438 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 $pretty_search_string = '<b>'.$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>'.	$r->print(&Apache::loncommon::start_page('Course Search').
$bodytag.'<hr /><center><font size="+2" face="arial">'.$pretty_search_string.'</font></center><hr />');	'<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(&Apache::loncommon::end_page());
}	}

# =============================== 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 517 sub checkonthis {	Line 616 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 531 sub untiehash {	Line 642 sub untiehash {

} # End of course search scoping	} # End of course search scoping

sub search_html_header {
my $Str = <<ENDHEADER;
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
</head>
ENDHEADER
return $Str;
}

######################################################################	######################################################################
######################################################################	######################################################################
Line 556 Prints the form for the basic search. S	Line 658 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 $bodytag=&Apache::loncommon::bodytag('Search').	my $result = ($env{'form.catalogmode'} ne 'groupsearch');
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Searching',	my $bread_crumb =
undef,undef,! $ENV{'form.launch'});	&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Search_Basic',
my $scrout = &search_html_header().$bodytag;	undef,undef,
if (&Apache::lonnet::allowed('bre',$ENV{'request.role.domain'})) {	$env{'form.catalogmode'} ne 'groupsearch');
	my $scrout = &Apache::loncommon::start_page('Search').$bread_crumb;
	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 588 sub print_basic_search_form {	Line 696 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 596 sub print_basic_search_form {	Line 704 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">'.	$scrout .= '<tr><td align="center" colspan="2">'.
'<font size="-1">'.	'<font size="-1">'.
'<input type="submit" name="basicsubmit" '.	'<input type="submit" name="basicsubmit" '.
'value="'.&mt('Search').'" />'.	'value="'.&mt('Search').'" />'.
(' 'x2).$closebutton.(' 'x2).&viewoptions().	(' 'x2).$closebutton.(' 'x2).
	&viewoptions().
'</font>'.	'</font>'.
'</td></tr>'.$/;	'</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 644 $lt{'note'}.	Line 752 $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 662 ENDCOURSESEARCH	Line 774 ENDCOURSESEARCH
</form>	</form>
ENDENDCOURSE	ENDENDCOURSE
}	}
$scrout.=(<<ENDDOCUMENT);	$scrout .= &Apache::loncommon::end_page();
</body>
</html>
ENDDOCUMENT
$r->print($scrout);	$r->print($scrout);
return;	return;
}	}
Line 684 Prints the advanced search form.	Line 793 Prints the advanced search form.
######################################################################	######################################################################
sub print_advanced_search_form{	sub print_advanced_search_form{
my ($r,$closebutton,$hidden_fields) = @_;	my ($r,$closebutton,$hidden_fields) = @_;
my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search').	my $bread_crumb =
&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 698 sub print_advanced_search_form{	Line 806 sub print_advanced_search_form{
<input type="reset" name="reset" value='$lt{"reset"}' />	<input type="reset" name="reset" value='$lt{"reset"}' />
$closebutton	$closebutton
END	END
my $scrout=&search_html_header();	my $scrout= &Apache::loncommon::start_page('Advanced Catalog Search');
$scrout .= <<"ENDHEADER";	$scrout .= <<"ENDHEADER";
$bodytag	$bread_crumb
<form method="post" action="/adm/searchcat" name="advsearch">	<form method="post" action="/adm/searchcat" name="advsearch">
<p>	<p>
$advanced_buttons	$advanced_buttons
Line 724 ENDHEADER	Line 832 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';	$scrout .= 'related words';
Line 749 ENDHEADER	Line 859 ENDHEADER
'<td align="right">'.&titlefield($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 758 ENDHEADER	Line 868 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 778 ENDHEADER	Line 891 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 890 ENDHEADER	Line 1003 ENDHEADER
$scrout.=<<ENDDOCUMENT;	$scrout.=<<ENDDOCUMENT;
$advanced_buttons	$advanced_buttons
</form>	</form>
</body>
</html>
ENDDOCUMENT	ENDDOCUMENT
	$scrout .= &Apache::loncommon::end_page();
$r->print($scrout);	$r->print($scrout);
return;	return;
}	}
Line 939 sub viewoptiontext {	Line 1051 sub viewoptiontext {
'xml' => 'XML/SGML',	'xml' => 'XML/SGML',
'compact' => 'Compact View',	'compact' => 'Compact View',
'fielded' => 'Fielded Format',	'fielded' => 'Fielded Format',
'summary' => 'Summary View');	'summary' => 'Summary View',
	'summarypreview' => 'Summary Preview',
	'detailedpreview' => 'Detailed Citation Preview');
return $desc{$code};	return $desc{$code};
}	}

Line 959 Outputs: text for box with view options	Line 1073 Outputs: text for box with view options
######################################################################	######################################################################
######################################################################	######################################################################
sub viewoptions {	sub viewoptions {
my $scrout="\n".'<nobr>';	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 993 Outputs: return little blurb on how to e	Line 1107 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 1009 Outputs: returns undef on database error	Line 1123 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 1031 sub get_persistent_form_data {	Line 1145 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 1149 sub make_form_data_persistent {	Line 1263 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 1184 Parse advanced search form and return th	Line 1298 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 1199 sub parse_advanced_search {	Line 1313 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 1244 sub parse_advanced_search {	Line 1357 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 $field (@BasicFields) {
if ($ENV{'form.'.$field}) {	next if (!defined($env{'form.'.$field}) \|\| $env{'form.'.$field} eq '');
my $searchphrase = $ENV{'form.'.$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 1373 sub parse_advanced_search {	Line 1495 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);	# $customshow=join(" ",@fields);
Line 1391 sub parse_advanced_search {	Line 1513 sub parse_advanced_search {
##	##
## Deal with restrictions to given domains	## Deal with restrictions to given domains
##	##
my ($libraries_to_query,$pretty_domains_string) =	my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions();
&parse_domain_restrictions();	if ($pretty_domains_string) {
$pretty_search_string .= $pretty_domains_string."<br />\n";	$pretty_search_string .= $pretty_domains_string."<br />\n";
	}
#	#
if (@queries) {	if (@queries) {
$query="select * 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 $pretty_domains_string;
Line 1441 sub parse_domain_restrictions {	Line 1559 sub parse_domain_restrictions {
}	}
}	}
}	}
return ($libraries_to_query,$pretty_domains_string);	return ($libraries_to_query,
	$pretty_domains_string);
}	}

######################################################################	######################################################################
Line 1462 sub parse_basic_search {	Line 1581 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) = &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 $pretty_search_string = '<b>'.$ENV{'form.basicexp'}.'</b>';	my $pretty_search_string=$search_string;
if ($ENV{'form.related'}) {	my @Queries;
my @New_Words;	my $searchfield = 'concat_ws(" ",'.join(',',
($search_string,@New_Words) = &related_version($ENV{'form.basicexp'});	('title','author','subject',
if (@New_Words) {	'notes','abstract','keywords')
$pretty_search_string .= " with related words: <b>@New_Words</b>.";	).')';
} else {	my ($error,$SQLQuery) = &process_phrase_input($search_string,
$pretty_search_string .= " with no related words.";	$env{'form.related'},
}	$searchfield);
	if ($error) {
	&output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
	'','basicexp');
	return;
}	}
	push(@Queries,$SQLQuery);
	#foreach my $q (@Queries) {
	# &Apache::lonnet::logthis(' '.$q);
	#}
	my $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
#	#
# Build SQL query string based on form page
my $query='';
my $concatarg=join(',',
('title', 'author', 'subject', 'notes', 'abstract',
'keywords'));
$concatarg='title' if $ENV{'form.titleonly'};
$query=&build_SQL_query('concat_ws(" ",'.$concatarg.')',$search_string);
if (defined($pretty_domains_string) && $pretty_domains_string ne '') {	if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
$pretty_search_string .= ' '.$pretty_domains_string;	$pretty_search_string .= ' '.$pretty_domains_string;
}	}
$pretty_search_string .= "<br />\n";	$pretty_search_string .= "<br />\n";
my $final_query = 'SELECT * FROM metadata WHERE '.$query;	$pretty_search_string =~ s:^<br /> and ::;
# &Apache::lonnet::logthis($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 {
	my ($phrase,$related,$field)=@_;
	#&Apache::lonnet::logthis('phrase = :'.$phrase.':');
	my $grammar = <<'ENDGRAMMAR';
	searchphrase:
	expression /^\Z/ {
	# &Apache::lonsearchcat::print_item(\@item,0);
	[@item];
	}
	expression:
	phrase(s) {
	[@item];
	}
	phrase:
	orword {
	[@item];
	}
	\| andword {
	[@item];
	}
	\| minusword {
	unshift(@::Phrases,$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; }
	$phrase = shift(@::Phrases);
	}
	if ($phrase eq 'NOT') {
	$phrasedata->{'negate'}++;
	if (! @::Phrases) { $phrasedata = undef; last; }
	$phrase = shift(@::Phrases);
	}
	}
	$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 {
	$query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
	}
	foreach my $related (@{$phrase->{'related_words'}}) {
	if ($phrase->{'negate'}) {
	$query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
	} else {
	$query .= ' OR '.$field.' LIKE "%'.$related.'%"';
	}
	}
	if ($SQLQuery) {
	if ($phrase->{'or'}) {
	$SQLQuery .= ' OR ('.$query.')';
	} else {
	$SQLQuery .= ' AND ('.$query.')';
	}
	} else {
	$SQLQuery = '('.$query.')';
	}
	}
	#
	# &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
	#
	return undef,$SQLQuery;
	}

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

Line 1526 Note: Using this twice on a string is pr	Line 1825 Note: Using this twice on a string is pr
######################################################################	######################################################################
######################################################################	######################################################################
sub related_version {	sub related_version {
my $search_string = shift;	my ($word) = @_;
my $result = $search_string;	return (undef) if (lc($word) =~ /\b(or\|and\|not)\b/);
my %New_Words = ();	my @Words = &Apache::loncommon::get_related_words($word);
while ($search_string =~ /(\w+)/cg) {	# Only use 4 related words
my $word = $1;	@Words = ($#Words>4? @Words[0..4] : @Words);
next if (lc($word) =~ /\b(or\|and\|not)\b/);	my $result = join " OR ", ($word,@Words);
my @Words = &Apache::loncommon::get_related_words($word);	return $result,sort(@Words);
@Words = ($#Words>4? @Words[0..4] : @Words);
foreach (@Words) { $New_Words{$_}++;}
my $replacement = join " OR ", ($word,@Words);
$result =~ s/(\b)$word(\b)/$1($replacement)$2/g;
}
return $result,sort(keys(%New_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;
my $sql_query=&recursive_SQL_query_build($field_name,$matchexp);
return $sql_query;
}

######################################################################	######################################################################
######################################################################	######################################################################
Line 1599 sub build_custommetadata_query {	Line 1868 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 1748 sub copyright_check {	Line 1976 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 $resdom)) {
return 0;	return 0;
}	}
return 1;	return 1;
Line 1786 sub ensure_db_and_table {	Line 2014 sub ensure_db_and_table {
if (! defined($table) \|\| $table eq '' \|\| $table =~ /\D/ ) {	if (! defined($table) \|\| $table eq '' \|\| $table =~ /\D/ ) {
$r->print("Unable to retrieve search results. ".	$r->print("Unable to retrieve search results. ".
"Unable to determine the table results were stored in. ".	"Unable to determine the table results were stored in. ".
"</body></html>");	&Apache::loncommon::end_page());
return undef;	return undef;
}	}
##	##
Line 1795 sub ensure_db_and_table {	Line 2023 sub ensure_db_and_table {
my $connection_result = &Apache::lonmysql::connect_to_db();	my $connection_result = &Apache::lonmysql::connect_to_db();
if (!defined($connection_result)) {	if (!defined($connection_result)) {
$r->print("Unable to connect to the MySQL database where your results".	$r->print("Unable to connect to the MySQL database where your results".
" are stored. </body></html>");	" are stored.".
	&Apache::loncommon::end_page());
&Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".	&Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
" connect to database.");	" connect to database.");
&Apache::lonnet::logthis(&Apache::lonmysql::get_error());	&Apache::lonnet::logthis(&Apache::lonmysql::get_error());
Line 1803 sub ensure_db_and_table {	Line 2032 sub ensure_db_and_table {
}	}
my $table_check = &Apache::lonmysql::check_table($table);	my $table_check = &Apache::lonmysql::check_table($table);
if (! defined($table_check)) {	if (! defined($table_check)) {
$r->print("A MySQL error has occurred.</form></body></html>");	$r->print("A MySQL error has occurred.</form>".
	&Apache::loncommon::end_page());
&Apache::lonnet::logthis("lonmysql was unable to determine the status".	&Apache::lonnet::logthis("lonmysql was unable to determine the status".
" of table ".$table);	" of table ".$table);
return undef;	return undef;
Line 1832 a link to change the search query.	Line 2062 a link to change the search query.
######################################################################	######################################################################
sub print_sort_form {	sub print_sort_form {
my ($r,$pretty_query_string) = @_;	my ($r,$pretty_query_string) = @_;
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
##	##
my %SortableFields=&Apache::lonlocal::texthash(	my %SortableFields=&Apache::lonlocal::texthash(
id => 'Default',	id => 'Default',
Line 1850 sub print_sort_form {	Line 2080 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
##	##
my $total_results = &Apache::lonmysql::number_of_rows($table);	my $total_results = &Apache::lonmysql::number_of_rows($table);
if (! defined($total_results)) {	if (! defined($total_results)) {
$r->print("A MySQL error has occurred.</form></body></html>");	$r->print("A MySQL error has occurred.</form>".
	&Apache::loncommon::end_page());
&Apache::lonnet::logthis("lonmysql was unable to determine the number".	&Apache::lonnet::logthis("lonmysql was unable to determine the number".
" of rows in table ".$table);	" of rows in table ".$table);
&Apache::lonnet::logthis(&Apache::lonmysql::get_error());	&Apache::lonnet::logthis(&Apache::lonmysql::get_error());
return;	return;
}	}
my $result;	my $js =<<END;
$result.=<<END;	<script type="text/javascript">
<html>
<head>
<script>
function change_sort() {	function change_sort() {
var newloc = "/adm/searchcat?phase=results";	var newloc = "/adm/searchcat?phase=results";
newloc += "&persistent_db_id=$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;
}	}
</script>	</script>
<title>Results</title>	END
</head>
$bodytag	my $head = &Apache::loncommon::start_page('Results',$js,
<form name="statusform" action="" method="post">	{'only_body' => 1});
	my $breadcrumbs=
	&Apache::lonhtmlcommon::breadcrumbs
	(undef,'Searching','Searching',undef,undef,
	$env{'form.catalogmode'} ne 'groupsearch');

	my $result = <<END;
	$start_page
	$breadcrumbs
	<form name="statusform" action="" method="POST">
<input type="hidden" name="Queue" value="" />	<input type="hidden" name="Queue" value="" />
END	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 1902 There are $total_results matches to your	Line 2139 There are $total_results matches to your
Search:$pretty_query_string	Search:$pretty_query_string
</p>	</p>
</form>	</form>
</body>
</html>
END	END
$r->print($result);	$r->print($result.&Apache::loncommon::end_page());
return;	return;
}	}

Line 1939 my @Fullindicies;	Line 2174 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 1970 sub create_results_table {	Line 2205 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 2022 sub update_status {	Line 2257 sub update_status {
}	}

{	{
my $max_time = 40; # seconds for the search to complete	my $max_time = 300; # seconds for the search to complete
my $start_time = 0;	my $start_time = 0;
my $last_time = 0;	my $last_time = 0;

Line 2071 Returns: html string for a 'revise searc	Line 2306 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 $result = qq{<input type="button" value="Revise search" name="revise"} .
Line 2097 results into MySQL.	Line 2332 results into MySQL.
######################################################################	######################################################################
sub run_search {	sub run_search {
my ($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 $connection = $r->connection;	my $connection = $r->connection;
#	#
# Print run_search header	# Print run_search header
#	#
	my $head = &Apache::loncommon::start_page('Search Status',undef,
	{'only_body' => 1});
	my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs
	(undef,'Searching','Searching',undef,undef,
	$env{'form.catalogmode'} ne 'groupsearch');
$r->print(<<END);	$r->print(<<END);
<html>	$start_page
<head><title>Search Status</title></head>	$breadcrumbs
$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 2133 END	Line 2376 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.".
	&Apache::loncommon::end_page());
return;	return;
}	}
my $table_status = &Apache::lonmysql::check_table($table);	my $table_status = &Apache::lonmysql::check_table($table);
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.".
	&Apache::loncommon::end_page());
&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'} @ $env{'user.domain'}");
&Apache::lonnet::logthis("lonmysql error = ".	&Apache::lonnet::logthis("lonmysql error = ".
&Apache::lonmysql::get_error());	&Apache::lonmysql::get_error());
return;	return;
Line 2155 END	Line 2400 END
&Apache::lonmysql::get_debug());	&Apache::lonmysql::get_debug());
&Apache::lonnet::logthis('table status = "'.$table_status.'"');	&Apache::lonnet::logthis('table status = "'.$table_status.'"');
$r->print("The table id,$table, we tried to use is invalid.".	$r->print("The table id,$table, we tried to use is invalid.".
"The search has been aborted.</body></html>");	"The search has been aborted.".
	&Apache::loncommon::end_page());
return;	return;
}	}
##	##
Line 2168 END	Line 2414 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 2207 END	Line 2453 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 2246 END	Line 2493 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 2280 END	Line 2530 END
# We have run out of time or run out of servers to talk to and	# We have run out of time or run out of servers to talk to and
# 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>");	$r->print(&Apache::loncommon::end_page());
if ($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 2308 sub prev_next_buttons {	Line 2558 sub prev_next_buttons {
my ($current_min,$show,$total,$parms) = @_;	my ($current_min,$show,$total,$parms) = @_;
return '' if ($show eq 'all'); # No links if you get them all at once.	return '' if ($show eq 'all'); # No links if you get them all at once.
#	#
# Create links	# Create buttons
my $prev_min = $current_min - $show;	my $buttons = '<input type="submit" name="prev" value="'.&mt('Prev').'" ';
$prev_min = 1 if $prev_min < 1;	$buttons .= '/>';
my $prevlink =	$buttons .= ' 'x3;
qq{<a href="/adm/searchcat?$parms&start=$prev_min&show=$show">};	$buttons .= '<input type="submit" name="reload" '.
#	'value="'.&mt('Reload').'" />';
my $next_min = $current_min + $show;	$buttons .= ' 'x3;
$next_min = $current_min if ($next_min > $total);	$buttons .= '<input type="submit" name="next" value="'.&mt('Next').'" ';
my $nextlink =	$buttons .= '/>';
qq{<a href="/adm/searchcat?$parms&start=$next_min&show=$show">};	return $buttons;
my $reloadlink =
qq{<a href="/adm/searchcat?$parms&start=$current_min&$show=$show">};
#
# Determine which parameters to pass
my $String = '[_1]prev[_2]   [_3]reload[_4]   [_5]next[_6]';
if ($prev_min == $current_min) {
$String =~ s:\[_[12]\]::g;
}
if ($next_min == $current_min) {
$String =~ s:\[_[56]\]::g;
}
my $links = &mt($String,
$prevlink, '</a>',
$reloadlink,'</a>',
$nextlink, '</a>');
return $links;
}	}

######################################################################	######################################################################
Line 2356 sub display_results {	Line 2590 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 2372 sub display_results {	Line 2606 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>'.
	&Apache::loncommon::end_page());
$r->rflush();	$r->rflush();
return;	return;
}	}
}	}
##	##
## 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
my $total_results = &Apache::lonmysql::number_of_rows($table);	my $total_results = &Apache::lonmysql::number_of_rows($table);
if (! defined($total_results)) {	if (! defined($total_results)) {
$r->print("A MySQL error has occurred.</form></body></html>");	$r->print("A MySQL error has occurred.</form>".
	&Apache::loncommon::end_page());
&Apache::lonnet::logthis("lonmysql was unable to determine the number".	&Apache::lonnet::logthis("lonmysql was unable to determine the number".
" of rows in table ".$table);	" of rows in table ".$table);
&Apache::lonnet::logthis(&Apache::lonmysql::get_error());	&Apache::lonnet::logthis(&Apache::lonmysql::get_error());
Line 2396 sub display_results {	Line 2632 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'}));
$ENV{'form.show'} = 'all' if (! exists($ENV{'form.show'}));	$env{'form.show'} = 20 if (! exists($env{'form.show'}));
my $min = $ENV{'form.start'};	if (exists($env{'form.prev'})) {
	$env{'form.start'} -= $env{'form.show'};
	} elsif (exists($env{'form.next'})) {
	$env{'form.start'} += $env{'form.show'};
	}
	$env{'form.start'} = 1 if ($env{'form.start'}<1);
	$env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
	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);
}	}
##	##
	## Output form elements
	$r->print(&hidden_field('table').
	&hidden_field('phase').
	&hidden_field('persistent_db_id').
	&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	$r->print
('<center>'.	('<table width="100%"><tr><td width="25%" align="right">'.
&prev_next_buttons($min,$ENV{'form.show'},$total_results,	'<nobr>'.$sortform.'</nobr>'.
"table=".$ENV{'form.table'}.	'</td><td width="25%" align="right">'.
"&phase=results".	&prev_next_buttons($min,$env{'form.show'},$total_results).
"&persistent_db_id=".$ENV{'form.persistent_db_id'})	'</td><td align="right">'.
."</center>\n"	&viewoptions().'</td></tr></table>'
);	);
if ($total_results == 0) {	if ($total_results == 0) {
$r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2">'.	$r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'.
'<h3>'.&mt('There are currently no results').'.</h3>'.	'<h3>'.&mt('There are currently no results').'.</h3>'.
"</form></body></html>");	"</form>".
	&Apache::loncommon::end_page());
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 2454 sub display_results {	Line 2789 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"
);	);
}	}
$r->print("</form></body></html>");	$r->print("</form>".&Apache::loncommon::end_page());
$r->rflush();	$r->rflush();
untie %groupsearch_db if (tied(%groupsearch_db));	untie %groupsearch_db if (tied(%groupsearch_db));
return;	return;
Line 2476 sub display_results {	Line 2811 sub display_results {
=item &catalogmode_output($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 2485 $ENV{'form.catalogmode'}. Stores data i	Line 2820 $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 2584 sub handle_custom_fields {	Line 2919 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 2619 sub handle_custom_fields {	Line 2954 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 2659 the name of the input field to put the t	Line 2994 the name of the input field to put the t
######################################################################	######################################################################
sub search_results_header {	sub search_results_header {
my ($importbutton,$closebutton) = @_;	my ($importbutton,$closebutton) = @_;
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
my $result = '';	my $js;
# output beginning of search page	# output beginning of search page
# conditional output of script functions dependent on the mode in	# conditional output of script functions dependent on the mode in
# which the search was invoked	# which the search was invoked
if ($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;	$js.=<<SCRIPT;
<script type="text/javascript">	<script type="text/javascript">
function select_data(title,url) {	function select_data(title,url) {
changeTitle(title);	changeTitle(title);
Line 2685 sub search_results_header {	Line 3020 sub search_results_header {
}	}
</script>	</script>
SCRIPT	SCRIPT
} elsif ($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 2705 function changeTitle(val) {	Line 3040 function changeTitle(val) {
END	END
}	}

$result.=<<SCRIPT;	$js.=<<SCRIPT;
<script type="text/javascript">	<script type="text/javascript">
function select_data(title,url) {	function select_data(title,url) {
changeURL(url);	changeURL(url);
Line 2725 function changeURL(val) {	Line 3060 function changeURL(val) {
SCRIPT	SCRIPT
}	}
}	}
$result.=<<SCRIPT if $ENV{'form.catalogmode'} eq 'groupsearch';	$js.=<<SCRIPT if $env{'form.catalogmode'} eq 'groupsearch';
<script type="text/javascript">	<script type="text/javascript">
function queue(checkbox_num,val) {	function queue(checkbox_num,val) {
if (document.forms.results.returnvalues.length != "undefined" &&	if (document.forms.results.returnvalues.length != "undefined" &&
Line 2745 SCRIPT	Line 3080 SCRIPT
}	}
function select_group() {	function select_group() {
parent.window.location=	parent.window.location=
"/adm/groupsort?mode=$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>
SCRIPT	SCRIPT

	my $start_page = &Apache::loncommon::start_page(undef,$js,
	{'only_body' =>1});
$result.=<<END;	$result.=<<END;
</head>	$start_page
$bodytag	<form name="results" method="post" action="/adm/searchcat" >
<form name="results" method="post" action="" >
<input type="hidden" name="Queue" value="" />	<input type="hidden" name="Queue" value="" />
$importbutton	$importbutton
END	END
Line 2763 END	Line 3100 END
######################################################################	######################################################################
######################################################################	######################################################################
sub search_status_header {	sub search_status_header {
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	my $start_page = &Apache::loncommon::start_page('Search Status',undef,
	{'only_body' => 1});
return <<ENDSTATUS;	return <<ENDSTATUS;
<html><head><title>Search Status</title></head>	$start_page
$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 />
ENDSTATUS	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 2784 sub results_link {	Line 3121 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 $head = &Apache::loncommon::headtag('LON-CAPA Digital Library Search Results');
	my $end_head = &Apache::loncommon::endheadtag();
my $result = <<"ENDFRAMES";	my $result = <<"ENDFRAMES";
<html>	$html
<head>	$head
<script>	<script>
var targetwin = opener;	var targetwin = opener;
var queue = '';	var queue = '';
</script>	</script>
<title>LON-CAPA Digital Library Search Results</title>	$end_head
</head>
<frameset rows="150,*">	<frameset rows="150,*">
<frame name="statusframe" src="$run_search_link">	<frame name="statusframe" src="$run_search_link">
<frame name="resultsframe" src="$results_link">	<frame name="resultsframe" src="$results_link">
Line 2811 ENDFRAMES	Line 3150 ENDFRAMES
######################################################################	######################################################################
######################################################################	######################################################################

	sub has_stat_data {
	my ($values) = @_;
	if ( (defined($values->{'count'}) && $values->{'count'} ne '') \|\|
	(defined($values->{'stdno'}) && $values->{'stdno'} ne '') \|\|
	(defined($values->{'disc'}) && $values->{'disc'} ne '') \|\|
	(defined($values->{'avetries'}) && $values->{'avetries'} ne '') \|\|
	(defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
	return 1;
	}
	return 0;
	}

	sub statfields {
	return ('count','stdno','disc','avetries','difficulty');
	}

	sub has_eval_data {
	my ($values) = @_;
	if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') \|\|
	(defined($values->{'technical'}) && $values->{'technical'} ne '') \|\|
	(defined($values->{'correct'}) && $values->{'correct'} ne '') \|\|
	(defined($values->{'helpful'}) && $values->{'helpful'} ne '') \|\|
	(defined($values->{'depth'}) && $values->{'depth'} ne '')) {
	return 1;
	}
	return 0;
	}

	sub evalfields {
	return ('clear','technical','correct','helpful','depth');
	}

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

=pod	=pod

=item Metadata Viewing Functions	=item Metadata Viewing Functions
Line 2832 extra custom metadata to show.	Line 3206 extra custom metadata to show.
######################################################################	######################################################################
sub detailed_citation_view {	sub detailed_citation_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
my $icon=
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>,'.
' <i>'.$values{'owner'}.'</i><br />';	' <i>'.$values{'owner'}.'</i><br />';
foreach my $field	foreach my $field
(	(
	{ name=>'url',
	translate => '<b>URL:</b> [_1]',
	special => 'url link',},
{ name=>'subject',	{ name=>'subject',
translate => '<b>Subject:</b> [_1]',},	translate => '<b>Subject:</b> [_1]',},
{ name=>'keywords',	{ name=>'keywords',
Line 2855 sub detailed_citation_view {	Line 3233 sub detailed_citation_view {
translate => '<b>Standards:</b>[_1]',},	translate => '<b>Standards:</b>[_1]',},
{ name=>'copyrighttag',	{ name=>'copyrighttag',
translate => '<b>Copyright/Distribution:</b> [_1]',},	translate => '<b>Copyright/Distribution:</b> [_1]',},
	{ name=>'count',
	format => "%d",
	translate => '<b>Access Count:</b> [_1]',},
{ name=>'stdno',	{ name=>'stdno',
	format => "%d",
translate => '<b>Number of Students:</b> [_1]',},	translate => '<b>Number of Students:</b> [_1]',},
{ name=>'avetries',	{ name=>'avetries',
	format => "%.2f",
translate => '<b>Average Tries:</b> [_1]',},	translate => '<b>Average Tries:</b> [_1]',},
{ name=>'disc',	{ name=>'disc',
	format => "%.2f",
translate => '<b>Degree of Discrimination:</b> [_1]',},	translate => '<b>Degree of Discrimination:</b> [_1]',},
{ name=>'difficulty',	{ name=>'difficulty',
	format => "%.2f",
translate => '<b>Degree of Difficulty:</b> [_1]',},	translate => '<b>Degree of Difficulty:</b> [_1]',},
{ name=>'clear',	{ name=>'clear',
	format => "%.2f",
translate => '<b>Clear:</b> [_1]',},	translate => '<b>Clear:</b> [_1]',},
{ name=>'depth',	{ name=>'depth',
	format => "%.2f",
translate => '<b>Depth:</b> [_1]',},	translate => '<b>Depth:</b> [_1]',},
{ name=>'helpful',	{ name=>'helpful',
	format => "%.2f",
translate => '<b>Helpful:</b> [_1]',},	translate => '<b>Helpful:</b> [_1]',},
{ name=>'correct',	{ name=>'correct',
translate => '<b>Correcy:</b> [_1]',},	format => "%.2f",
	translate => '<b>Correct:</b> [_1]',},
{ name=>'technical',	{ name=>'technical',
	format => "%.2f",
translate => '<b>Technical:</b> [_1]',},	translate => '<b>Technical:</b> [_1]',},
	{ name=>'comefrom_list',
	type => 'list',
	translate => 'Resources that lead up to this resource in maps',},
	{ name=>'goto_list',
	type => 'list',
	translate => 'Resources that follow this resource in maps',},
	{ name=>'sequsage_list',
	type => 'list',
	translate => 'Resources using or importing resource',},
) {	) {
$result.= &mt($field->{'translate'},$values{$field->{'name'}}).	next if (! exists($values{$field->{'name'}}) \|\|
"<br />\n";	$values{$field->{'name'}} eq '');
	if (exists($field->{'type'}) && $field->{'type'} eq 'list') {
	$result .= '<b>'.&mt($field->{'translate'}).'</b><ul>';
	foreach my $item (split(',',$values{$field->{'name'}})){
	$result .= '<li>'.
	'<a target="search_preview" '.
	'href="'.$jumpurl.'">'.$item.'</a></li>';
	}
	$result .= '</ul>';
	} elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
	$result.= &mt($field->{'translate'},
	sprintf($field->{'format'},
	$values{$field->{'name'}}))."<br />\n";
	} else {
	if ($field->{'special'} eq 'url link') {
	$result.=
	&mt($field->{'translate'},
	'<a href="'.$jumpurl.'" '.
	'target="search_preview">'.
	$values{$field->{'name'}}.
	'</a>');
	} else {
	$result.= &mt($field->{'translate'},
	$values{$field->{'name'}});
	}
	$result .= "<br />\n";
	}
	}
	$result .= "</p>";
	if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') {
	$result .= '<p>'.$values{'extrashow'}.'</p>';
	}
	if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') {
	$result .= '<p>'.$values{'shortabstract'}.'</p>';
}	}
$result .= "</p>".$values{'extrashow'}.
'<p>'.$values{'shortabstract'}.'</p>';
$result .= '<hr align="left" width="200" noshade />'."\n";	$result .= '<hr align="left" width="200" noshade />'."\n";
return $result;	return $result;
}	}

######################################################################	sub detailed_citation_preview {
######################################################################	my ($prefix,%values)=@_;
	return '<table><tr><td>'.
sub has_stat_data {	&detailed_citation_view($prefix,%values).
my ($values) = @_;	'</td><td>'.
if ( (defined($values->{'count'}) && $values->{'count'} ne '') \|\|	&Apache::lonindexer::showpreview($values{'url'}).
(defined($values->{'stdno'}) && $values->{'stdno'} ne '') \|\|	'</td></tr></table><hr />';
(defined($values->{'disc'}) && $values->{'disc'} ne '') \|\|
(defined($values->{'avetries'}) && $values->{'avetries'} ne '') \|\|
(defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
return 1;
}
return 0;
}	}

sub statfields {
return ('count','stdno','disc','avetries','difficulty');
}

sub has_eval_data {
my ($values) = @_;
if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') \|\|
(defined($values->{'technical'}) && $values->{'technical'} ne '') \|\|
(defined($values->{'correct'}) && $values->{'correct'} ne '') \|\|
(defined($values->{'helpful'}) && $values->{'helpful'} ne '') \|\|
(defined($values->{'depth'}) && $values->{'depth'} ne '')) {
return 1;
}
return 0;
}

sub evalfields {
return ('clear','technical','correct','helpful','depth');
}

######################################################################	######################################################################
######################################################################	######################################################################
Line 2931 sub evalfields {	Line 3336 sub evalfields {
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" /><a href="http://$ENV{'HTTP_HOST'}$values{'url'}"	if (exists($env{'form.sortfield'}) &&
target='search_preview'>$values{'author'}</a><br />	$env{'form.sortfield'} !~ /^(default\|
$values{'title'}<br />	author\|
$values{'owner'} -- $values{'lastrevisiondate'}<br />	url\|
	title\|
	owner\|
	lastrevisiondate\|
	copyright)$/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 2944 END	Line 3364 END
return $result;	return $result;
}	}

	sub summary_preview {
	my ($prefix,%values)=@_;
	return '<table><tr><td>'.
	&summary_view($prefix,%values).
	'</td><td>'.
	&Apache::lonindexer::showpreview($values{'url'}).
	'</td></tr></table><hr />';
	}

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

Line 2957 END	Line 3386 END
######################################################################	######################################################################
sub compact_view {	sub compact_view {
my ($prefix,%values) = @_;	my ($prefix,%values) = @_;
my $icon=&Apache::loncommon::icon($values{'url'});	my $jumpurl=$values{'url'};
my $result=<<END;	$jumpurl=~s/^\/ext\//http\:\/\//;
$prefix <img src="$icon" /> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" target='search_preview'>
$values{'title'}</a>	my $result =
<b>$values{'author'}</b><br />	$prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'">';
END	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">'.
	$values{'title'}.'</a>'.(' 'x2).
	'<b>'.$values{'author'}.'</b> ('.$values{'domain'}.')<br />';
return $result;	return $result;
}	}

Line 2982 sub fielded_format_view {	Line 3419 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{$field}.'</dt>'."\n".
Line 3030 sub xml_sgml_view {	Line 3470 sub xml_sgml_view {
my ($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 3113 sub filled {	Line 3553 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 $heading = &mt('Unparsed Field');
	my $revise = &mt('Revise search request');
	# make query information persistent to allow for subsequent revision
	my $start_page = &Apache::loncommon::start_page('Search');
	my $end_page = &Apache::loncommon::end_page();
	$r->print(<<ENDPAGE);
	$start_page
	<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>
	$end_page
	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 3130 $parms is extra information to include i	Line 3611 $parms is extra information to include i
######################################################################	######################################################################
sub output_blank_field_error {	sub output_blank_field_error {
my ($r,$closebutton,$parms,$hidden_fields)=@_;	my ($r,$closebutton,$parms,$hidden_fields)=@_;
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);	my $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.');
# make query information persistent to allow for subsequent revision	my $revise = &mt('Revise Search Request');
$r->print(<<BEGINNING);	my $heading = &mt('Unactionable Search Queary');
<html>	my $start_page = &Apache::loncommon::start_page('Search');
<head>	my $end_page = &Apache::loncommon::end_page();
<title>The LearningOnline Network with CAPA</title>	$r->print(<<ENDPAGE);
BEGINNING	$start_page
$r->print(<<RESULTS);
</head>
$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.	$errormsg
You need to fill in relevant fields on the search page in order
for a query to be processed.
</p>	</p>
</body>	<p>
</html>	<a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
RESULTS	</p>
	$end_page
	ENDPAGE
	return;
}	}

######################################################################	######################################################################
Line 3181 Inputs:	Line 3656 Inputs:
sub output_date_error {	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 $start_page = &Apache::loncommon::start_page('Search');
	my $end_page = &Apache::loncommon::end_page();
$r->print(<<RESULTS);	$r->print(<<RESULTS);
<html>	$start_page
<head>
<title>The LearningOnline Network with CAPA</title>
</head>
$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
<input type='button' value='Revise search request'	<input type='button' value='Revise search request'
Line 3200 $closebutton	Line 3670 $closebutton
<p>	<p>
$message	$message
</p>	</p>
</body>	$end_page
</html>
RESULTS	RESULTS
}	}

Line 3241 sub cleanup {	Line 3710 sub cleanup {
}	}
&untiehash();	&untiehash();
&Apache::lonmysql::disconnect_from_db();	&Apache::lonmysql::disconnect_from_db();
	return OK;
}	}

__END__	__END__

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

Removed from v.1.222
changed lines
	Added in v.1.257