# The LearningOnline Network with CAPA # The LON-CAPA group sort handler # Allows for sorting prior to import into RAT. # # $Id: groupsort.pm,v 1.17 2003/01/09 22:04:28 www Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # # LON-CAPA is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # LON-CAPA is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with LON-CAPA; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # # YEAR=2001 # 8/7,8/8,10/14,10/15,12/10 Scott Harrison # YEAR=2002 # 1/17 Scott Harrison # ### package Apache::groupsort; use strict; use Apache::Constants qw(:common); use GDBM_File; use Apache::loncommon; my %hash; # variable to tie to user specific database my $iconpath; # variable to be accessible to multiple subroutines sub cleanup { untie(%hash) if (tied(%hash)); } # ---------------------------------------------------------------- Main Handler sub handler { my $r = shift; &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['acts','catalogmode','mode']); # color scheme my $fileclr = '#ffffe6'; my $titleclr = '#ddffff'; $r->content_type('text/html'); $r->send_http_header; return OK if $r->header_only; # finish_import looks different for graphical or "simple" RAT my $finishimport=''; if ($ENV{'form.mode'} eq 'simple') { $finishimport=(< function insertRowInLastRow() { opener.insertrow(opener.maxrow); opener.addobj(opener.maxrow,'e&2'); } function placeResourceInLastRow (title,url,linkflag) { opener.newresource(opener.maxrow,2,opener.escape(title), opener.escape(url),'false','normal'); opener.save(); opener.mostrecent=opener.obj.length-1; if (linkflag) { opener.joinres(opener.linkmode,opener.mostrecent,0); } opener.linkmode=opener.mostrecent; } $finishimport function selectchange(val) { var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex"); orderchange(val,newval); } function move(val,newval) { orderchange(val,newval); } function orderchange(val,newval) { document.forms.groupsort.oldval.value=val; document.forms.groupsort.newval.value=newval; document.forms.groupsort.submit(); } END $r->print(&Apache::loncommon::bodytag('Sort Imported Resources')); # read pertinent machine configuration my $domain = $r->dir_config('lonDefDomain'); $iconpath = $r->dir_config('lonIconsURL') . "/"; my %shash; # sort order (key is resource location, value is sort order) my %thash; # title (key is resource location, value is title) my $diropendb; # ------------------------------ which file do we open? Easy if explictly given if ($ENV{'form.catalogmode'} eq 'groupsearch') { $diropendb = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; } elsif ($ENV{'form.catalogmode'} eq 'groupimport') { $diropendb = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; } elsif ($ENV{'form.catalogmode'} eq 'groupsec') { $diropendb = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db"; } # --------------------- not explicitly given, choose the one most recently used else { # choose last accessed my @dbfn; my @dbst; $dbfn[0] = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; $dbst[0]=-1; if (-e $dbfn[0]) { $dbst[0]=(stat($dbfn[0]))[9]; } $dbfn[1] = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; $dbst[1]=-1; if (-e $dbfn[1]) { $dbst[1]=(stat($dbfn[1]))[9]; } $dbfn[2] = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db"; $dbst[2]=-1; if (-e $dbfn[2]) { $dbst[2]=(stat($dbfn[2]))[9]; } # Expand here for more modes # .... # Okay, find most recent existing my $newest=0; $diropendb=''; for (my $i=0; $i<=$#dbfn; $i++) { if ($dbst[$i]>$newest) { $newest=$dbst[$i]; $diropendb=$dbfn[$i]; } } } # ----------------------------- diropendb is now the filename of the db to open if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { my $acts = $ENV{'form.acts'}; my @Acts = split(/b/,$acts); my %ahash; my %achash; my $ac = 0; foreach (@Acts) { my ($state,$ref) = split(/a/); $ahash{$ref} = $state; $achash{$ref} = $ac; $ac++; } foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) { my $key = $_; if ($ahash{$key} eq '1') { # my $keyz=join("
",keys %hash); # print "
$key
$keyz".$hash{'pre_'.$key.'_link'}."
\n"; $hash{'store_'.$hash{'pre_'.$key.'_link'}} = $hash{'pre_'.$key.'_title'}; $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} = $hash{'storectr'}+0; $hash{'storectr'}++; } if ($ahash{$key} eq '0') { if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) { delete $hash{'store_'.$hash{'pre_'.$key.'_link'}}; } } } foreach (keys %hash) { if ($_ =~ /^store_/) { my $key = $_; $key =~ s/^store_//; $shash{$key} = $hash{'storectr_'.$key}; $thash{$key} = $hash{'store_'.$key}; } } if ($ENV{'form.oldval'}) { my $newctr = 0; my %chash; foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) { my $key = $_; $newctr++; $shash{$key} = $newctr; $hash{'storectr_'.$key} = $newctr; $chash{$newctr} = $key; } my $oldval = $ENV{'form.oldval'}; my $newval = $ENV{'form.newval'}; if ($oldval != $newval) { # when newval==0, then push down and delete if ($newval!=0) { $shash{$chash{$oldval}} = $newval; $hash{'storectr_'.$chash{$oldval}} = $newval; } else { $shash{$chash{$oldval}} = $newctr; $hash{'storectr_'.$chash{$oldval}} = $newctr; } if ($newval==0) { # push down my $newval2=$newctr; for my $idx ($oldval..($newval2-1)) { $shash{$chash{$idx+1}} = $idx; $hash{'storectr_'.$chash{$idx+1}} = $idx; } delete $shash{$chash{$oldval}}; delete $hash{'storectr_'.$chash{$oldval}}; delete $hash{'store_'.$chash{$oldval}}; } elsif ($oldval < $newval) { # push down for my $idx ($oldval..($newval-1)) { $shash{$chash{$idx+1}} = $idx; $hash{'storectr_'.$chash{$idx+1}} = $idx; } } elsif ($oldval > $newval) { # push up for my $idx (reverse($newval..($oldval-1))) { $shash{$chash{$idx}} = $idx+1; $hash{'storectr_'.$chash{$idx}} = $idx+1; } } } } } else { $r->print('Unable to tie hash to db file'); return OK; } untie %hash; my $ctr = 0; my $clen = scalar(keys %shash); $r->print(<Finalize order of resources

END # --- Expand here if "GO BACK" button desired if ($ENV{'form.catalogmode'} eq 'groupimport') { $r->print(< END } if ($ENV{'form.catalogmode'} eq 'groupsearch') { $r->print(< END } # --- $r->print(< END $r->print("

"); $r->print("\n"); $r->print("". "\n"); $r->print("\n"); $r->print("\n"); foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) { my $key=$_; $ctr++; my @file_ext = split(/\./,$key); my $curfext = $file_ext[scalar(@file_ext)-1]; $r->print("\n"); } $r->print("

Change order		Title		Path
"); $r->print(&movers($clen,$ctr)); $r->print(&hidden($ctr-1,$thash{$key},$key)); $r->print("	"); $r->print(&select_box($clen,$ctr)); $r->print("	"); $r->print(""); $r->print("	"); $r->print("$thash{$key}	\n"); $r->print("$key

"); $r->print(< END return OK; } # --------------------------------------- Hidden values (returns scalar string) sub hidden { my ($sel,$title,$filelink) = @_; my $string = ''; $string .= ''; return $string; } # --------------------------------------- Moving arrows (returns scalar string) sub movers { my ($total,$sel) = @_; my $dsel = $sel-1; my $usel = $sel+1; $usel = 1 if $usel > $total; $dsel = $total if $dsel < 1; my $string; $string = (<

END return $string; } # ------------------------------------------ Select box (returns scalar string) sub select_box { my ($total,$sel) = @_; my $string; $string = '