--- loncom/interface/lonsearchcat.pm 2001/03/08 16:54:20 1.4 +++ loncom/interface/lonsearchcat.pm 2001/03/15 18:43:30 1.18 @@ -7,6 +7,9 @@ package Apache::lonsearchcat; use strict; use Apache::Constants qw(:common); +use Apache::lonnet(); +use Apache::File(); +use CGI qw(:standard); my %language; my $scrout; @@ -16,15 +19,32 @@ my %mimetag; sub handler { my $r = shift; + +# -------------------------------------- see if called from an interactive mode + map { + my ($name, $value) = split(/=/,$_); + $value =~ tr/+/ /; + $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; + if ($name eq 'catalogmode') { + $ENV{'form.'.$name}=$value; + } + } (split(/&/,$ENV{'QUERY_STRING'})); + $r->content_type('text/html'); $r->send_http_header; return OK if $r->header_only; %metadatafields=(); + my $hidden=''; + $hidden=< +END + # ------------------------------------------------ First, check out environment $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'}; +# --------------------------------- Compute various listings of metadata values %language=(); $language{'any'}='Any language'; @@ -56,560 +76,112 @@ sub handler { } <$fh>; } - $scrout=""; + if ($ENV{'form.basicsubmit'} eq 'SEARCH') { + return &basicsearch($r,$ENV{'form.basicexp'}); + } + elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') { + return &advancedsearch($r,\%ENV); + } + + $scrout=''; # building a part of screen output $scrout.=&searchphrasefield('Limit by title','title', - ''); + $ENV{'form.title'}); $scrout.=&searchphrasefield('Limit by author','author', - ''); + $ENV{'form.author'}); $scrout.=&searchphrasefield('Limit by subject','subject', - ''); + $ENV{'form.subject'}); + + $scrout.=&searchphrasefield('Limit by keywords','keywords', + $ENV{'form.keywords'}); + + $scrout.=&searchphrasefield('Limit by URL','url', + $ENV{'form.url'}); + + $scrout.=&searchphrasefield('Limit by version','version', + $ENV{'form.version'}); $scrout.=&searchphrasefield('Limit by notes','notes', - ''); + $ENV{'form.notes'}); $scrout.=&searchphrasefield('Limit by abstract','abstract', - ''); + $ENV{'form.abstract'}); + $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'}); $scrout.=&selectbox('Limit by MIME type','mime', - 'notxxx',%mimetag); + $ENV{'form.mime'},%mimetag); + + $ENV{'form.language'}='any' unless length($ENV{'form.language'}); $scrout.=&selectbox('Limit by language','language', - 'any',%language); + $ENV{'form.language'},%language); - $scrout.=< LIMIT BY CREATION DATE RANGE:
-between: - - -and: - - -

+between: +CREATIONDATESTART + $scrout.=&dateboxes('creationdatestart',1,1,1976, + $ENV{'form.creationdatestart_month'}, + $ENV{'form.creationdatestart_day'}, + $ENV{'form.creationdatestart_year'}, + ); + $scrout.=< LIMIT BY LAST REVISION DATE RANGE: -
between: - - -and: - - -

+
between: +LASTREVISIONDATESTART + $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976, + $ENV{'form.lastrevisiondatestart_month'}, + $ENV{'form.lastrevisiondatestart_day'}, + $ENV{'form.lastrevisiondatestart_year'}, + ); + $scrout.=< +LIMIT BY OTHER METADATA FIELDS: + +For author-specific metadata, enter in an expression in the form of +key=value separated by operators such as AND or OR.
+Example: grandmother=75 OR grandfather=85 +
+CUSTOMMETADATA +$scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'}); +$scrout.=' initial users of this system do not need to worry about this option'; # ---------------------------------------------------------------- Print screen $r->print(<The LearningOnline Network with CAPA -

Search Catalog

+

Search Catalog

+$hidden

Basic Search

@@ -629,17 +202,26 @@ such as AND or OR then press SEARCH belo to the title, author, subject, notes, or abstract information associated with a resource.
- - -Title only +ENDDOCUMENT + $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'})); + $r->print(' '); + $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'})); + $r->print('Title only '); + $r->print(&simplecheckbox('allversions',$ENV{'form.allversions'})); + $r->print(<Search historic archives
+ +

Advanced Search

$scrout

+ +

@@ -656,6 +238,18 @@ sub textfield { ''; } +sub simpletextfield { + my ($name,$value)=@_; + return ''; +} + +sub simplecheckbox { + my ($name,$value)=@_; + my $checked=''; + $checked="CHECKED" if $value eq 'on'; + return ''; +} + sub searchphrasefield { my ($title,$name,$value)=@_; my $instruction=<$uctitle:". - ": $instruction
". + " $instruction
". ''; } +sub dateboxes { + my ($name,$defaultmonth,$defaultday,$defaultyear, + $currentmonth,$currentday,$currentyear)=@_; + ($defaultmonth,$defaultday,$defaultyear)=('','',''); + my $month=< + + + + + + + + + + + + + + +END + $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth); + my $day=< + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +END + $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday); + my $year=< + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +END + $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear); + return "$month$day$year"; +} + sub selectbox { my ($title,$name,$value,%options)=@_; my $uctitle=uc($title); @@ -681,5 +419,150 @@ sub selectbox { return $selout.''; } +# ------------------------------------------------ Performing a advanced search +sub advancedsearch { + my ($r,$envhash)=@_; + my %ENV=%{$envhash}; + +} + +# --------------------------------------------------- Performing a basic search +sub basicsearch { + my ($r,$expression)=@_; + + my $query=$expression; + $query="select * from metadata where concat(title,\" \",author) like '\%$expression\%'"; + my $reply=&Apache::lonnet::metadata_query($query); + &output_results($reply); + return OK; +} + +# ----------------------------- format and output results based on a reply list +sub output_results { + my (@replylist)=@_; + foreach my $reply (@replylist) { + + my @results; + + my $replyfile=''; + $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting + $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1; + $reply=~/(.*?)\_/; + my $hostname=$1; + + { + while (1) { + last if -e $replyfile; + sleep 1; + } + # QUESTION: how should I handle this error condition.. + # I'm sure there is syntax elsewhere I can use.. + my $fh=Apache::File->new($replyfile) or + ($r->print('file cannot be opened') and return OK); + @results=<$fh>; + } + + my $compiledresult=''; + + foreach my $result (@results) { + my ($title,$author,$subject,$url,$keywords,$version, + $notes,$abstract,$mime,$lang, + $creationdate,$lastrevisiondate,$owner,$copyright + )=map {&Apache::lonnet::unescape($_)} (split(/\,/,$result)); + my $shortabstract=$abstract; + $shortabstract=substr($abstract,0,200) if length($abstract)>200; + $compiledresult.=< +END + $compiledresult.=< + +
+END + $compiledresult.=<URL: $url +
+Title: $title
+Author(s): $author
+Subject: $subject
+Keyword(s): $keywords
+Notes: $notes
+Abstract: $shortabstract
+MIME Type: $mimetag{$mime}
+Language: $language{$lang}
+Creation Date: $creationdate
+Last Revision Date: $lastrevisiondate
+Publisher/Owner: $owner
+Copyright/Distribution: $copyright
+Repository Location: $hostname +

+END + } + + unless ($compiledresult) { + $compiledresult="There were no results that matched your query"; + } + + # make query information persistent to allow for subsequent revision + my $persistent=''; + map { + if (/^form\./ && !/submit/) { + my $name=$_; + my $key=$name; + $name=~s/^form\.//; + $persistent.=< +END + } + } (keys %ENV); + + $r->print(< + +The LearningOnline Network with CAPA +BEGINNING + $r->print(< + function select_data(title,url) { + changeTitle(title); + changeURL(url); + } + function changeTitle(val) { + if (opener.inf.document.forms.resinfo.elements.t) { + opener.inf.document.forms.resinfo.elements.t.value=val; + } + } + function changeURL(val) { + if (opener.inf.document.forms.resinfo.elements.u) { + opener.inf.document.forms.resinfo.elements.u.value=val; + } + } + +SCRIPT + $r->print(< + + +

Search Catalog

+
+ + +$persistent +
+

Search Query

+

+Basic search: $expression +

+

Search Results

+$compiledresult + + +RESULTS + } +} + 1; __END__