--- loncom/interface/groupsort.pm 2001/08/08 03:00:54 1.1
+++ loncom/interface/groupsort.pm 2005/06/09 22:06:09 1.33
@@ -1,11 +1,32 @@
# The LearningOnline Network with CAPA
-#
# The LON-CAPA group sort handler
-#
# Allows for sorting prior to import into RAT.
#
-# YEAR=2001
-# 8/7 Scott Harrison
+# $Id: groupsort.pm,v 1.33 2005/06/09 22:06:09 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/
+#
+###
package Apache::groupsort;
@@ -13,18 +34,225 @@ use strict;
use Apache::Constants qw(:common);
use GDBM_File;
+use Apache::loncommon;
+use Apache::lonlocal;
+use Apache::lonnet;
+
+my $iconpath; # variable to be accessible to multiple subroutines
+my %hash; # variable to tie to user specific database
+
+
+sub readfromdb {
+ my ($r,$shash,$thash)=@_;
+
+ my $diropendb;
+# ------------------------------ which file do we open? Easy if explictly given
+ if ($env{'form.catalogmode'} eq 'groupsearch') {
+ $diropendb =
+ "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_searchcat.db";
+ } elsif ($env{'form.catalogmode'} eq 'groupimport') {
+ $diropendb =
+ "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_indexer.db";
+ } elsif ($env{'form.catalogmode'} eq 'groupsec') {
+ $diropendb =
+ "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_groupsec.db";
+ } else {
+# --------------------- not explicitly given, choose the one most recently used
+ my @dbfn;
+ my @dbst;
+
+ $dbfn[0] =
+ "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_searchcat.db";
+ $dbst[0]=-1;
+ if (-e $dbfn[0]) {
+ $dbst[0]=(stat($dbfn[0]))[9];
+ }
+ $dbfn[1] =
+ "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_indexer.db";
+ $dbst[1]=-1;
+ if (-e $dbfn[1]) {
+ $dbst[1]=(stat($dbfn[1]))[9];
+ }
+ $dbfn[2] =
+ "/home/httpd/perl/tmp/$env{'user.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_//;
+ $$shash{$key} = $hash{'storectr_'.$key};
+ if (&Apache::lonnet::gettitle($key) eq '') {
+ $$thash{$key} = $hash{'store_'.$key};
+ } else {
+ $$thash{$key} = &Apache::lonnet::gettitle($key);
+ }
+ }
+ }
+ if ($env{'form.oldval'}) {
+ my $newctr = 0;
+ my %chash;
+ foreach (sort {$$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