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Diff for /loncom/homework/lonhomework.pm between versions 1.17 and 1.37

version 1.17, 2000/11/30 16:20:49 version 1.37, 2001/02/13 18:42:06
Line 1 Line 1
 # The LON-CAPA Homework handler  # The LON-CAPA Homework handler
 # Guy Albertelli  # Guy Albertelli
 # 11/30 Gerd Kortemeyer  # 11/30 Gerd Kortemeyer
   # 6/1 Gerd Kortemeyer
   
 package Apache::lonhomework;  package Apache::lonhomework;
 use strict;  use strict;
Line 10  use Apache::lonnet; Line 11  use Apache::lonnet;
 use Apache::inputtags;  use Apache::inputtags;
 use Apache::structuretags;  use Apache::structuretags;
 use Apache::response;  use Apache::response;
   use Apache::hint;
   use Apache::outputtags;
 sub subhandler {  use Apache::Constants qw(:common);
   my ($target,$problem)=@_;  
   my %mystyle;  
   my $result = '';  
   &Apache::inputtags::initialize_inputtags;  
   %Apache::lonhomework::results=();  
   %Apache::lonhomework::history=&Apache::lonnet::restore;  
   #ignore error conditions  
   my ($temp)=keys %Apache::lonhomework::history ;  
   if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }   
   
   my $resultkey;  
   foreach $resultkey (sort keys %Apache::lonhomework::history) {  
     &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::history{$resultkey}");  
   }  
   &Apache::lonxml::debug("\n<br>restored values^</br>\n");  
   my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');  
   if ($default == -1) {  
     &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");  
     $default='';  
   }  
   
   return Apache::lonxml::xmlparse($target, $problem,  
      $default.&setup_vars($target),%mystyle);  
 }  
   
 sub get_target {  sub get_target {
   if ( $ENV{'request.state'} eq "published") {    if ( $ENV{'request.state'} eq "published") {
     return 'web';      if ( defined $ENV{'form.submitted'}) {
         return ('grade', 'web');
       } else {
         return ('web');
       }
   } elsif ($ENV{'request.state'} eq "construct") {    } elsif ($ENV{'request.state'} eq "construct") {
     if ( defined $ENV{'form.preview'}) {      if ( defined $ENV{'form.preview'}) {
       return 'web';        if ( defined $ENV{'form.submitted'}) {
    return ('grade', 'web');
         } else {
    return ('web');
         }
     } else {      } else {
       return 'edit';        #return ('edit');
         #edit is currently broken
         return ('web');
     }      }
   }    }
     return ();
 }  }
   
 sub setup_vars {  sub setup_vars {
Line 63  sub send_header { Line 51  sub send_header {
 #  $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');  #  $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
 }  }
   
   sub createmenu {
     my ($which,$request)=@_;
     if ($which eq 'grade') {
       $request->print('<script language="JavaScript"> 
             hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","LONCAPAhomeworkmenu",
                    "height=350,width=150,menubar=no");
             </script>');
     }
   }
   
 sub send_footer {  sub send_footer {
   my ($request)= @_;    my ($request)= @_;
 #  $request->print('</form>');  #  $request->print('</form>');
   $request->print(&Apache::lontexconvert::footer());    $request->print(&Apache::lontexconvert::footer());
 }  }
   
 sub getfilenothere {  $Apache::lonxml::browse='';
   my ($filename) = @_;  sub check_date {
   my $a="";    my ($id) = @_;
   if (! -e $filename ) {    my $date ='';
     &Apache::lonnet::subscribe($filename);    my $status = '';
     &Apache::lonnet::repcopy($filename);    my $datemsg = '';
   }    my $lastdate = '';
   {    my $temp;
     my $fh=Apache::File->new($filename);    my $type;
     my $passed;
     while (<$fh>) {    &Apache::lonxml::debug("checking for part :$id:");
       $a .=$_;    foreach $temp ("opendate","duedate","answerdate") {
       $lastdate = $date;
       $date = &Apache::lonnet::EXT("resource.$id.$temp");
       &Apache::lonxml::debug("found :$date: for :$temp:");
       if ($date eq '') {
         $date = "an unknown date"; $passed = 0;
       } elsif ($date eq 'con_lost') {
         $date = "an indeterminate date"; $passed = 0;
       } else {
         if (time < $date) { $passed = 0; } else { $passed = 1; }
         $date = localtime $date;
     }      }
       if (!$passed) { $type=$temp; last; }
   }    }
   return $a    &Apache::lonxml::debug("have :$type:$passed:");
     if ($passed) {
       $status='SHOW_ANSWER';
       $datemsg=$date;
     } elsif ($type eq 'opendate') {
       $status='CLOSED';
       $datemsg = "will open on $date";
     } elsif ($type eq 'duedate') {
       $status='CAN_ANSWER';
       $datemsg = "is due at $date";
     } elsif ($type eq 'answerdate') {
       $status='CLOSED';
       $datemsg = "was due on $lastdate, and answers will be available on $date";
     }
     if ($status eq 'CAN_ANSWER') {
       #check #tries
       my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
       my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
       if ( $tries eq '' ) { $tries = '0'; }
       if ( $maxtries eq '' ) { $maxtries = '2'; } 
       if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; } 
     }
     &Apache::lonxml::debug("sending back :$status:$datemsg:");
     if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
       &Apache::lonxml::debug("should be allowed to browse a resource when closed");
       $status='CAN_ANSWER';
       $datemsg='is closed but you are allowed to view it';
     }
     if ($ENV{'request.state'} eq "construct") {
       &Apache::lonxml::debug("in construction ignoring dates");
       $status='CAN_ANSWER';
       $datemsg='is in under construction';
     }
     return ($status,$datemsg);
 }  }
   
 sub handler {  sub handler {
   my $request=shift;    my $request=$_[0];
     
    if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;} else {$Apache::lonxml::debug=0;}
     
     my (@targets) = &get_target();
   
   $Apache::lonxml::debug=1;  
   if ($ENV{'browser.mathml'}) {    if ($ENV{'browser.mathml'}) {
     $request->content_type('text/xml');      $request->content_type('text/xml');
   } else {    } else {
     $request->content_type('text/html');      $request->content_type('text/html');
   }    }
   $request->send_http_header;    $request->send_http_header;
   return 'OK' if $request->header_only;    return OK if $request->header_only;
   
   &Apache::lonhomework::send_header($request);    #setup permissions
   my $file=&Apache::lonnet::filelocation("",$request->uri);    $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});
   my $problem=&Apache::lonnet::getfile($file);    $Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
   if ($problem == -1) {    &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");
     &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");  
     $problem='';    #check if we know where we are
     if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { 
       # if we are browsing we might not be able to know where we are
       if ($Apache::lonhomework::browse ne 'F') {
         #should know where we are, so ask
         $request->internal_redirect('/adm/ambiguous'); return; 
       }
   }    }
   
   my $result=&subhandler(&get_target(),$problem);    &Apache::lonhomework::send_header($request);
     
   #$request->print("Result follows:");    foreach my $target (@targets) {
   $request->print($result);      my $file=&Apache::lonnet::filelocation("",$request->uri);
   #$request->print(":Result ends");      my $problem=&Apache::lonnet::getfile($file);
       if ($problem == -1) {
         &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");
         $problem='';
       }
       
       my %mystyle;
       my $result = '';
       &Apache::inputtags::initialize_inputtags;
       %Apache::lonhomework::results=();
       %Apache::lonhomework::history=&Apache::lonnet::restore;
       #ignore error conditions
       my ($temp)=keys %Apache::lonhomework::history ;
       if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } 
       if ($target eq 'web') {
         if (&Apache::lonnet::symbread() eq '') {
    if ($ENV{'request.state'} eq "construct") {
     $request->print("In construction space, submissions ignored<br>");
    } else {
     $request->print("Browsing or <a href=\"/adm/ambiguous\">ambiguous</a> reference, submissions ignored<br>");
    }
         }
         if ($Apache::lonhomework::viewgrades eq 'F') {&createmenu('grade',$request); }
       }
       if ($target eq 'grade') {
         my $resultkey;
         foreach $resultkey (sort keys %Apache::lonhomework::history) {
    &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::history{$resultkey}");
         }
         &Apache::lonxml::debug("\n<br>restored values^</br>\n");
       }
       my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
       if ($default == -1) {
         &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
         $default='';
       }
       $result = &Apache::lonxml::xmlparse($target, $problem,
    $default.&setup_vars($target),%mystyle);
   
   my $temp;      #$request->print("Result follows:");
   my $resultkey;      $request->print($result);
   foreach $resultkey (sort keys %Apache::lonhomework::results) {      #$request->print(":Result ends");
     &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::results{$resultkey}");      if ($target eq 'grade') {
   
         my $resultkey;
         foreach $resultkey (sort keys %Apache::lonhomework::results) {
    &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::results{$resultkey}");
         }
         &Apache::lonxml::debug("\n<br>storing values^</br>\n");
       }
       
       my ($temp) = keys %Apache::lonhomework::results;
       if ( $temp ne '' ) {
         &Apache::lonxml::debug("Store return message:".&Apache::lonnet::cstore(%Apache::lonhomework::results));
       }
   }    }
   &Apache::lonxml::debug("\n<br>storing values^</br>\n");  
   
   &Apache::lonhomework::send_footer($request);    &Apache::lonhomework::send_footer($request);
   ($temp) = keys %Apache::lonhomework::results;    
   if ( $temp ne '' ) {    return OK;
     &Apache::lonxml::debug("Store return message:".&Apache::lonnet::cstore(%Apache::lonhomework::results));  
   }  
   return 'OK';  
   
 }  }
   
Removed from v.1.17  
changed lines
  Added in v.1.37

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