--- loncom/interface/loncommon.pm 2001/02/13 18:18:40 1.1
+++ loncom/interface/loncommon.pm 2001/12/07 23:41:25 1.11
@@ -1,52 +1,82 @@
-# The LearningOnline Network
+# The LearningOnline Network with CAPA
# a pile of common routines
+#
+# $Id: loncommon.pm,v 1.11 2001/12/07 23:41:25 albertel 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/
+#
# 2/13 Guy Albertelli
# Makes a table out of the previous attempts
-# Inputs result_from_symbread, user, domain, home_server, course_id
+# Inputs result_from_symbread, user, domain, course_id
package Apache::loncommon;
use strict;
+use POSIX qw(strftime);
use Apache::Constants qw(:common);
use Apache::lonmsg();
sub get_previous_attempt {
- my ($symb,$username,$domain,$home,$course)=@_;
+ my ($symb,$username,$domain,$course)=@_;
my $prevattempts='';
if ($symb) {
- my $answer=&Apache::lonnet::reply(
- "restore:".$domain.':'.$username.':'.$course.':'.
- &Apache::lonnet::escape($symb),
- $home);
- my %returnhash=();
- map {
- my ($name,$value)=split(/\=/,$_);
- $returnhash{&Apache::lonnet::unescape($name)}=
- &Apache::lonnet::unescape($value);
- } split(/\&/,$answer);
+ my (%returnhash)=
+ &Apache::lonnet::restore($symb,$course,$domain,$username);
if ($returnhash{'version'}) {
my %lasthash=();
my $version;
for ($version=1;$version<=$returnhash{'version'};$version++) {
map {
$lasthash{$_}=$returnhash{$version.':'.$_};
- } split(/\:/,$returnhash{$version.':keys'});
+ } sort(split(/\:/,$returnhash{$version.':keys'}));
}
$prevattempts='<table border=2></tr><th>History</th>';
map {
$prevattempts.='<th>'.$_.'</th>';
- } keys %lasthash;
+ } sort(keys %lasthash);
for ($version=1;$version<=$returnhash{'version'};$version++) {
$prevattempts.='</tr><tr><th>Attempt '.$version.'</th>';
map {
- $prevattempts.='<td>'.$returnhash{$version.':'.$_}.'</td>';
- } keys %lasthash;
+ my $value;
+ if ($_ =~ /timestamp/) {
+ $value=scalar(localtime($returnhash{$version.':'.$_}));
+ } else {
+ $value=$returnhash{$version.':'.$_};
+ }
+ $prevattempts.='<td>'.$value.'</td>';
+ } sort(keys %lasthash);
}
$prevattempts.='</tr><tr><th>Current</th>';
map {
- $prevattempts.='<td>'.$lasthash{$_}.'</td>';
- } keys %lasthash;
+ my $value;
+ if ($_ =~ /timestamp/) {
+ $value=scalar(localtime($lasthash{$_}));
+ } else {
+ $value=$lasthash{$_};
+ }
+ $prevattempts.='<td>'.$value.'</td>';
+ } sort(keys %lasthash);
$prevattempts.='</tr></table>';
} else {
$prevattempts='Nothing submitted - no attempts.';
@@ -56,5 +86,81 @@ sub get_previous_attempt {
}
}
+sub get_student_view {
+ my ($symb,$username,$domain,$courseid) = @_;
+ my ($map,$id,$feedurl) = split(/___/,$symb);
+ my (%old,%moreenv);
+ my @elements=('symb','courseid','domain','username');
+ foreach my $element (@elements) {
+ $old{$element}=$ENV{'form.grade_'.$element};
+ $moreenv{'form.grade_'.$element}=eval '$'.$element #'
+ }
+ &Apache::lonnet::appenv(%moreenv);
+ my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);
+ &Apache::lonnet::delenv('form.grade_');
+ foreach my $element (@elements) {
+ $ENV{'form.grade_'.$element}=$old{$element};
+ }
+ $userview=~s/\<body[^\>]*\>//gi;
+ $userview=~s/\<\/body\>//gi;
+ $userview=~s/\<html\>//gi;
+ $userview=~s/\<\/html\>//gi;
+ $userview=~s/\<head\>//gi;
+ $userview=~s/\<\/head\>//gi;
+ $userview=~s/action\s*\=/would_be_action\=/gi;
+ return $userview;
+}
+
+sub get_student_answers {
+ my ($symb,$username,$domain,$courseid) = @_;
+ my ($map,$id,$feedurl) = split(/___/,$symb);
+ my (%old,%moreenv);
+ my @elements=('symb','courseid','domain','username');
+ foreach my $element (@elements) {
+ $old{$element}=$ENV{'form.grade_'.$element};
+ $moreenv{'form.grade_'.$element}=eval '$'.$element #'
+ }
+ $moreenv{'form.grade_target'}='answer';
+ &Apache::lonnet::appenv(%moreenv);
+ my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);
+ &Apache::lonnet::delenv('form.grade_');
+ foreach my $element (@elements) {
+ $ENV{'form.grade_'.$element}=$old{$element};
+ }
+ $userview=~s/\<body[^\>]*\>//gi;
+ $userview=~s/\<\/body\>//gi;
+ $userview=~s/\<html\>//gi;
+ $userview=~s/\<\/html\>//gi;
+ $userview=~s/\<head\>//gi;
+ $userview=~s/\<\/head\>//gi;
+ $userview=~s/action\s*\=/would_be_action\=/gi;
+ return $userview;
+}
+
+sub get_unprocessed_cgi {
+ my ($query)= @_;
+ map {
+ my ($name, $value) = split(/=/,$_);
+ $value =~ tr/+/ /;
+ $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+ if (!defined($ENV{'form.'.$name})) { $ENV{'form.'.$name}=$value; }
+ } (split(/&/,$query));
+}
+
+sub cacheheader {
+ my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
+ my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
+ <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
+ <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
+ return $output;
+}
+
+sub no_cache {
+ my ($r) = @_;
+ my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
+ $r->no_cache(1);
+ $r->header_out("Pragma" => "no-cache");
+ $r->header_out("Expires" => $date);
+}
1;
__END__;