--- loncom/homework/grades.pm 2002/07/25 21:25:38 1.41
+++ loncom/homework/grades.pm 2008/03/17 20:39:50 1.515
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# The LON-CAPA Grading handler
#
-# $Id: grades.pm,v 1.41 2002/07/25 21:25:38 ng Exp $
+# $Id: grades.pm,v 1.515 2008/03/17 20:39:50 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,13 +25,6 @@
#
# http://www.lon-capa.org/
#
-# 2/9,2/13 Guy Albertelli
-# 6/8 Gerd Kortemeyer
-# 7/26 H.K. Ng
-# 8/20 Gerd Kortemeyer
-# Year 2002
-# June, July 2002 H.K. Ng
-#
package Apache::grades;
use strict;
@@ -39,757 +32,2525 @@ use Apache::style;
use Apache::lonxml;
use Apache::lonnet;
use Apache::loncommon;
+use Apache::lonhtmlcommon;
+use Apache::lonnavmaps;
use Apache::lonhomework;
-use Apache::lonmsg qw(:user_normal_msg);
+use Apache::lonpickcode;
+use Apache::loncoursedata;
+use Apache::lonmsg();
use Apache::Constants qw(:common);
-#use Time::HiRes qw( gettimeofday tv_interval );
+use Apache::lonlocal;
+use Apache::lonenc;
+use String::Similarity;
+use LONCAPA;
+
+use POSIX qw(floor);
+
+
+
+my %perm=();
+
+# These variables are used to recover from ssi errors
+
+my $ssi_retries = 5;
+my $ssi_error;
+my $ssi_error_resource;
+my $ssi_error_message;
+
-sub moreinfo {
- my ($request,$reason) = @_;
- $request->print("Unable to process request: $reason");
- if ( $Apache::grades::viewgrades eq 'F' ) {
- $request->print('
');
+# Do an ssi with retries:
+# While I'd love to factor out this with the vesrion in lonprintout,
+# that would either require a data coupling between modules, which I refuse to perpetuate
+# (there's quite enough of that already), or would require the invention of another infrastructure
+# I'm not quite ready to invent (e.g. an ssi_with_retry object).
+#
+# At least the logic that drives this has been pulled out into loncommon.
+
+
+#
+# ssi_with_retries - Does the server side include of a resource.
+# if the ssi call returns an error we'll retry it up to
+# the number of times requested by the caller.
+# If we still have a proble, no text is appended to the
+# output and we set some global variables.
+# to indicate to the caller an SSI error occured.
+# All of this is supposed to deal with the issues described
+# in LonCAPA BZ 5631 see:
+# http://bugs.lon-capa.org/show_bug.cgi?id=5631
+# by informing the user that this happened.
+#
+# Parameters:
+# resource - The resource to include. This is passed directly, without
+# interpretation to lonnet::ssi.
+# form - The form hash parameters that guide the interpretation of the resource
+#
+# retries - Number of retries allowed before giving up completely.
+# Returns:
+# On success, returns the rendered resource identified by the resource parameter.
+# Side Effects:
+# The following global variables can be set:
+# ssi_error - If an unrecoverable error occured this becomes true.
+# It is up to the caller to initialize this to false
+# if desired.
+# ssi_last_error_resource - If an unrecoverable error occured, this is the value
+# of the resource that could not be rendered by the ssi
+# call.
+# ssi_last_error - The error string fetched from the ssi response
+# in the event of an error.
+#
+sub ssi_with_retries {
+ my ($resource, $retries, %form) = @_;
+ my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
+ if ($response->is_error) {
+ $ssi_error = 1;
+ $ssi_error_resource = $resource;
+ $ssi_error_message = $response->code . " " . $response->message;
}
- return '';
+
+ return $content;
+
}
+#
+# Prodcuces an ssi retry failure error message to the user:
+#
-sub verifyreceipt {
- my $request=shift;
- my $courseid=$ENV{'request.course.id'};
-# my $cdom=$ENV{"course.$courseid.domain"};
-# my $cnum=$ENV{"course.$courseid.num"};
- my $receipt=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.
- $ENV{'form.receipt'};
- $receipt=~s/[^\-\d]//g;
- my $symb=$ENV{'form.symb'};
- unless ($symb) {
- $symb=&Apache::lonnet::symbread($ENV{'form.url'});
- }
- if ((&Apache::lonnet::allowed('mgr',$courseid)) && ($symb)) {
- $request->print('
Verifying Submission Receipt '.$receipt.'
');
- my $matches=0;
- my ($classlist) = &getclasslist('all','0');
- foreach my $student ( sort(@{ $$classlist{'all'} }) ) {
- my ($uname,$udom)=split(/\:/,$student);
- if ($receipt eq
- &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb)) {
- $request->print('Matching '.$student.' ');
- $matches++;
- }
- }
- $request->printf('
'.$matches." match%s
",$matches <= 1 ? '' : 'es');
-# needs to print who is matched
+sub ssi_print_error {
+ my ($r) = @_;
+ $r->print('
Unrecoverable network error
');
+ $r->print('
Unable to perform a resource fetch from a server: ');
+ $r->print("Resource: $ssi_error_resource ");
+ $r->print("Error: $ssi_error_message Try again later.");
+ $r->print('If errors persist, contact LonCAPA support for assistance
');
+}
+
+#
+# --- Retrieve the parts from the metadata file.---
+sub getpartlist {
+ my ($symb) = @_;
+
+ my $navmap = Apache::lonnavmaps::navmap->new();
+ my $res = $navmap->getBySymb($symb);
+ my $partlist = $res->parts();
+ my $url = $res->src();
+ my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
+
+ my @stores;
+ foreach my $part (@{ $partlist }) {
+ foreach my $key (@metakeys) {
+ if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
+ }
}
- return '';
+ return @stores;
+}
+
+# --- Get the symbolic name of a problem and the url
+sub get_symb {
+ my ($request,$silent) = @_;
+ (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+ my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
+ if ($symb eq '') {
+ if (!$silent) {
+ $request->print("Unable to handle ambiguous references:$url:.");
+ return ();
+ }
+ }
+ &Apache::lonenc::check_decrypt(\$symb);
+ return ($symb);
+}
+
+#--- Format fullname, username:domain if different for display
+#--- Use anywhere where the student names are listed
+sub nameUserString {
+ my ($type,$fullname,$uname,$udom) = @_;
+ if ($type eq 'header') {
+ return ' '.&mt('Fullname').' ('.&mt('Username').')';
+ } else {
+ return ' '.$fullname.' ('.$uname.
+ ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')';
+ }
+}
+
+#--- Get the partlist and the response type for a given problem. ---
+#--- Indicate if a response type is coded handgraded or not. ---
+sub response_type {
+ my ($symb) = shift;
+
+ my $navmap = Apache::lonnavmaps::navmap->new();
+ my $res = $navmap->getBySymb($symb);
+ my $partlist = $res->parts();
+ my %vPart =
+ map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
+ my (%response_types,%handgrade);
+ foreach my $part (@{ $partlist }) {
+ next if (%vPart && !exists($vPart{$part}));
+
+ my @types = $res->responseType($part);
+ my @ids = $res->responseIds($part);
+ for (my $i=0; $i < scalar(@ids); $i++) {
+ $response_types{$part}{$ids[$i]} = $types[$i];
+ $handgrade{$part.'_'.$ids[$i]} =
+ &Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
+ '.handgrade',$symb);
+ }
+ }
+ return ($partlist,\%handgrade,\%response_types);
+}
+
+sub flatten_responseType {
+ my ($responseType) = @_;
+ my @part_response_id =
+ map {
+ my $part = $_;
+ map {
+ [$part,$_]
+ } sort(keys(%{ $responseType->{$part} }));
+ } sort(keys(%$responseType));
+ return @part_response_id;
+}
+
+sub get_display_part {
+ my ($partID,$symb)=@_;
+ my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
+ if (defined($display) and $display ne '') {
+ $display.= " (id $partID)";
+ } else {
+ $display=$partID;
+ }
+ return $display;
+}
+
+#--- Show resource title
+#--- and parts and response type
+sub showResourceInfo {
+ my ($symb,$probTitle,$checkboxes) = @_;
+ my $col=3;
+ if ($checkboxes) { $col=4; }
+ my $result = '
'.&mt('Current Resource').': '.$probTitle.'
'."\n";
+ $result .='
';
+ my ($partlist,$handgrade,$responseType) = &response_type($symb);
+ my %resptype = ();
+ my $hdgrade='no';
+ my %partsseen;
+ foreach my $partID (sort keys(%$responseType)) {
+ foreach my $resID (sort keys(%{ $responseType->{$partID} })) {
+ my $handgrade=$$handgrade{$partID.'_'.$resID};
+ my $responsetype = $responseType->{$partID}->{$resID};
+ $hdgrade = $handgrade if ($handgrade eq 'yes');
+ $result.='
';
+ if ($checkboxes) {
+ if (exists($partsseen{$partID})) {
+ $result.="