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Diff for /loncom/homework/grades.pm between versions 1.1 and 1.12

version 1.1, 2001/02/07 00:29:30 version 1.12, 2001/08/06 16:37:58
Line 1 Line 1
 # The LON-CAPA Grading handler  # The LON-CAPA grading handler.
 # Guy Albertelli  #
 # 11/30 Gerd Kortemeyer  # Handles the viewing of grades.
 # 6/1 Gerd Kortemeyer  #
   # YEAR=2001
   # 2/7,2/9,2/13,4/16,4/17,5/1 Guy Albertelli
   # 6/8 Gerd Kortemeyer
   # 7/26 Guy Albertelli
   # 7/27 H.K. Ng
   # 7/30 Guy Albertelli
   # 8/6 Scott Harrison
   
 package Apache::grades;  package Apache::grades;
 use strict;  use strict;
 use Apache::style;  use Apache::style;
 use Apache::lonxml;  use Apache::lonxml;
 use Apache::lonnet;  use Apache::lonnet;
   use Apache::loncommon;
 use Apache::lonhomework;  use Apache::lonhomework;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
   
 sub handler {  # ======================================================== Get more information
   my $request=$_[0];  sub moreinfo {
       my ($request,$reason) = @_;
       $request->print("Unable to process request: $reason");
       if ( $Apache::grades::viewgrades eq 'F' ) {
    $request->print('<form action="/adm/grades" method="post">'."\n");
    $request->print('<input type="hidden" name="url" value="'.
    $ENV{'form.url'}.'"></input>'."\n");
    $request->print('<input type="hidden" name="command" value="'.
    $ENV{'form.command'}.'"></input>'."\n");
    $request->print("Student:".
    '<input type="text" name="student" value="'.
    $ENV{'form.student'}.'"></input>'."<br />\n");
    $request->print("Domain:".
    '<input type="text" name="domain" value="'.
    $ENV{'user.domain'}.'"></input>'."<br />\n");
    $request->print('<input type="submit" name="submit" '.
    'value="ReSubmit"></input>'."<br />\n");
    $request->print('</form>');
       }
       return '';
   }
   
   # ========================================= Displays the class list of students
   sub listStudents {
       my ($request) = shift;
       my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
       my $chome = $ENV{"course.$ENV{'request.course.id'}.home"};
       $request->print ("Found $cdom:$cnum:$chome<br />");
       my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
       foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
    my ($sname,$sdom) = split(/:/,$student);
    my $reply = &Apache::lonnet::reply('get:'.$sdom.':'.$sname.
       ':environment:lastname&generation&firstname&middle'.
       'name',&Apache::lonnet::homeserver($sname,$sdom));
    print "reply=$reply<br>";
    my (@nameparts) = split /&/,$reply;
   #        my $sfullname = $Apache::lonnet::unescape($nameparts[0]);
    if ( $Apache::grades::viewgrades eq 'F' ) {
       $request->print('<form action="/adm/grades" method="post">'."\n");
       $request->print("$sname @nameparts\n");
       $request->print('<input type="hidden" name="url" value="'.
       $ENV{'form.url'}.'"></input>'."\n");
       $request->print('<input type="hidden" name="command" value="'.
       $ENV{'form.command'}.'"></input>'."\n");
       $request->print('<input type="hidden" name="student" '.
       'value="'.$sname.'"></input>'."\n");
       $request->print('<input type="hidden" name="domain" '.
       'value="'.$sdom.'"></input>'."\n");
       $request->print('<input type="submit" name="submit" '.
       'value="View"></input>'."<br />\n");
       $request->print('</form>');
    }
       }
   }
   
   # ========== Finds a user based on a name substring (returns a 2 element array)
   #FIXME - needs to handle multiple matches
   sub finduser {
       my ($name) = @_;
       my $domain = '';
       if ( $Apache::grades::viewgrades eq 'F' ) {
    #get classlist
    my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
    my $chome = $ENV{"course.$ENV{'request.course.id'}.home"};
    #print "Found $cdom:$cnum:$chome<br />";
    my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
    foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
       my ($posname,$posdomain) = split(/:/,$student);
       if ($posname =~ $name) { 
    $name = $posname;
    $domain = $posdomain;
    last;
       }
    }
    return ($name,$domain);
       } else {
    return ($ENV{'user.name'},$ENV{'user.domain'});
       }
   }
   
   # ===================================== Gets a class list (returns a hash list)
   sub getclasslist {
       my ($coursedomain,$coursenum,$coursehome,$hideexpired) = @_;
       my $classlist = &Apache::lonnet::reply('dump:'.$coursedomain.':'.
    $coursenum.':classlist',$coursehome);
       my %classlist = ();
       my $now = time;
       foreach my $record (split /&/, $classlist) {
    my ($name,$value)=split(/=/,&Apache::lonnet::unescape($record));
    my ($end,$start)=split(/:/,$value);
    # still a student?
    if (($hideexpired) && ($end) && ($end < $now)) {
       print "Skipping:$name:$end:$now<br />\n";
       next;
    }
    print "record=$record<br>";
    push( @{ $classlist{'allids'} }, $name); 
       }
       return (%classlist);
   }
   
   # ============================== Get parts of a stored value (returns an array)
   sub getpartlist {
       my ($url) = @_;
       my @parts =();
       my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
       foreach my $key (@metakeys) {
    if ( $key =~ m/stores_([0-9]+)_.*/ ) {
       push(@parts,$key);
    }
       }
       return @parts;
   }
   
   # =================================== Displays student grade (returns a string)
   sub viewstudentgrade {
       my ($url,$symb,$courseid,$student,@parts) = @_;
       my $result = '';
       my $cellclr = '"#ffffdd"';
       my ($stuname,$domain) = split(/:/,$student);
       my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
       $result .= "<tr><td bgcolor=$cellclr>$stuname</td><td bgcolor=".
          "\"$cellclr\" align=\"middle\">$domain</td>\n";
       foreach my $part (@parts) {
    my ($temp,$part,$type)=split(/_/,$part);
    #print "resource.$part.$type = ".$record{"resource.$part.$type"}." <br />\n";
    if ($type eq 'awarded') {
       my $score = $record{"resource.$part.$type"};
       $result .= "<td bgcolor=$cellclr align=\"middle\">".
          "<input type=\"text\" name=".
          "\"GRADE.$student.$part.$type\" ".
          "value=\"$score\" size=\"4\" /></td>\n";
    } elsif ($type eq 'tries') {
       my $score = $record{"resource.$part.$type"};
       $result .= "<td bgcolor=$cellclr align=\"middle\"><input ".
          "type=\"text\" name=\"GRADE.$student.$part.".
           "$type\" value=\"$score\" size=\"4\" /></td>\n";
    } elsif ($type eq 'solved') {
       my $score = $record{"resource.$part.$type"};
       $result .= "<td bgcolor=\"$cellclr\" align=\"middle\">".
          "<select name=\"GRADE.$student.$part.$type\">\n";
       if ($score =~ /^correct/) {
    $result .= "<option selected=\"on\">correct</option>".
              "\n<option>incorrect</option>\n<option>".
      "excused</option>\n<option>ungraded".
      "</option>\n<option>nothing</option>\n";
       } elsif ($score =~ /^incorrect/) {
    $result .= "<option>correct</option>\n<option ".
              "selected=\"on\">incorrect</option>\n".
      "<option>excused</option>\n<option>".
      "ungraded</option>\n<option>nothing</option>\n";
       } elsif ($score eq '') {
    $result .= "<option>correct</option>\n<option> ".
              "incorrect</option>\n<option>excused".
                              "</option>\n<option>ungraded</option>\n".
      "<option selected=\"on\">nothing</option>\n";
       } elsif ($score =~ /^excused/) {
    $result .= "<option>correct</option>\n<option>".
                              "incorrect</option>\n<option selected=".
                              "\"on\">excused</option>\n<option>".
      "ungraded</option>\n<option>nothing</option>\n";
       } elsif ($score =~ /^ungraded/) {
    $result .= "<option>correct</option>\n<option>".
              "incorrect</option>\n<option>excused".
                              "</option>\n<option selected=\"on\">".
      "ungraded</option>\n<option>nothing</option>\n";
       }
       $result .= "</select></td>\n";
    }
       }
       $result .= '</tr>';
       return $result;
   }
   
   # ========================================================== Sets student grade
   #FIXME need to look at the meatdata <stores> spec
   # on what type of data to accept and provide an
   #interface based on that, also do that to above function.
   sub setstudentgrade {
       my ($url,$symb,$courseid,$student,@parts) = @_;
       my $result ='';
       my ($stuname,$domain) = split(/:/,$student);
       my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
       my %newrecord;
       foreach my $part (@parts) {
    my ($temp,$part,$type) = split(/_/,$part);
    my $oldscore = $record{"resource.$part.$type"};
    my $newscore = $ENV{"form.GRADE.$student.$part.$type"};
    if ($type eq 'solved') {
       my $update = 0;
       if ($newscore eq 'nothing' ) {
    if ($oldscore ne '') {
       $update = 1;
       $newscore = '';
    }
       } elsif ($oldscore !~ m/^$newscore/) {
    $update=1;
    $result.="Updating $stuname to $newscore<br />\n";
    if ($newscore eq 'correct') { 
       $newscore = 'correct_by_override'; }
    if ($newscore eq 'incorrect') {
       $newscore = 'incorrect_by_override'; }
    if ($newscore eq 'excused') {
       $newscore = 'excused'; }
    if ($newscore eq 'ungraded') {
       $newscore = 'ungraded_attempted'; }
       } else {
    #$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";
       }
       if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }
    } else {
       if ($oldscore ne $newscore) {
    $newrecord{"resource.$part.$type"}=$newscore;
    $result .= "Updating $student"."'s status for $part.$type to ".
              "$newscore<br />\n";
       } else {
    #$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";
       }
    }
       }
       if ( scalar(keys(%newrecord)) > 0 ) {
    $newrecord{"resource.regrader"} = $ENV{'user.name'}.':'.
                                     $ENV{'user.domain'};
    &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$stuname);
   
    $result .= 'Stored away '.scalar(keys(%newrecord)).
               " elements.<br />\n";
       }
       return $result;
   }
   
   
   # ========================================================== Attempt submission
   sub submission {
       my ($request) = @_;
       my $url = $ENV{'form.url'};
       $url =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
       if ($ENV{'form.student'} eq '') { 
    &moreinfo($request,"Need student login id"); return ''; }
   #  if ($ENV{'form.student'} eq '') { &listStudents($request); return ''; }
       my ($uname,$udom) = &finduser($ENV{'form.student'});
       if ($uname eq '') {
    &moreinfo($request,"Unable to find student"); return ''; }
       my $symb=&Apache::lonnet::symbread($url);
       if ($symb eq '') {
    $request->print("Unable to handle ambiguous references:$url:.");
    return ''; }
       my $answer = &Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
    $ENV{'request.course.id'});
       my $result = "<h2> Submission Record </h2>  $uname:$udom for $url <br />".
            $answer;
       return $result;
   }
   
   # ================================================================= View grades
   sub viewgrades {
       my ($request) = @_;
       my $result = '';
       
       #get resource reference
       my $url = $ENV{'form.url'};
       $url =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
       my $symb=$ENV{'form.symb'};
       if (!$symb) { $symb = &Apache::lonnet::symbread($url); }
       if ($symb eq '') { 
    $request->print("Unable to handle ambiguous references:$url:.");
    return '';
       }
       
       #get classlist
       my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
       my $chome = $ENV{"course.$ENV{'request.course.id'}.home"};
       #print "Found $cdom:$cnum:$chome<br />";
       my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
       my $headerclr = '"#ccffff"';
       my $cellclr = '"#ffffcc"';
   
       #get list of parts for this problem
       my (@parts) = &getpartlist($url);
   
       $request->print("<h2><font color=\"#339966\">Manual Grading</font></h2>");
       
       #start the form
       $result = '<form action="/adm/grades" method="post">'."\n".
         '<input type="hidden" name="symb" value="'.$symb.'"/>'."\n".
         '<input type="hidden" name="url" value="'.$url.'"/>'."\n".
         '<input type="hidden" name="command" value="editgrades" />'."\n".
         '<input type="submit" name="submit" value="Submit Changes" />'.
         "\n".'<table border=0><tr><td bgcolor="#999999">'."\n".
         '<table border=0>'."\n".
         '<tr><td bgcolor='.$headerclr.'>UserId</td><td bgcolor='.
                 $headerclr.'>Domain</td>'."\n";
       foreach my $part (@parts) {
    my $display = &Apache::lonnet::metadata($url,$part.'.display');
    if  (!$display) { 
       $display = &Apache::lonnet::metadata($url,$part.'.name'); }
    $result .= '<td bgcolor='.$headerclr.'>'.$display.'</td>'."\n";
       }
       $result .= "</tr>";
   
       #get info for each student
       foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
    $result .= &viewstudentgrade($url,$symb,$ENV{'request.course.id'},
        $student,@parts);
       }
       $result .= '</table></td></tr></table><input type="submit" name="submit"'.
          'value="Submit Changes" /></form>';
       return $result;
   }
   
   # ================================================================= Edit grades
   sub editgrades {
       my ($request) = @_;
       my $result='';
   
       my $symb = $ENV{'form.symb'};
       if ($symb eq '') {
    $request->print("Unable to handle ambiguous references:$symb:".
    $ENV{'form.url'});
    return '';
       }
       my $url = $ENV{'form.url'};
       #get classlist
       my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
       my $chome = $ENV{"course.$ENV{'request.course.id'}.home"};
       #print "Found $cdom:$cnum:$chome<br />";
       my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
       
       #get list of parts for this problem
       my (@parts) = &getpartlist($url);
   
   if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;} else {$Apache::lonxml::debug=0;}      $result .= '<form action="/adm/grades" method="post">'."\n".
                    '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
   if ($ENV{'browser.mathml'}) {                 '<input type="hidden" name="url" value="'.$url.'" />'."\n".
     $request->content_type('text/xml');         '<input type="hidden" name="command" value="viewgrades" />'.
   } else {                 "\n".'<input type="submit" name="submit" value="See Grades" />'.
     $request->content_type('text/html');                 '<br />'."\n";
   }  
   $request->send_http_header;  
   return OK if $request->header_only;  
   my $url=$ENV{'form.url'};  
   if ($url eq '') {  
     $request->print("Non-Contextual Access Unsupported");  
   } else {  
     $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$url);  
   }  
   
   return OK;      foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
           $result .= &setstudentgrade($url,$symb,$ENV{'request.course.id'},
       $student,@parts);
       }
   
       $result .= '<input type="submit" name="submit" value="See Grades" />'.
          '</table></form>';
       return $result;
   }
   
   # ================================================================= Send header
   sub send_header {
       my ($request) = @_;
       $request->print(&Apache::lontexconvert::header());
   #  $request->print("
   #<script>
   #remotewindow=open('','homeworkremote');
   #remotewindow.close();
   #</script>"); 
       $request->print('<body bgcolor="#FFFFFF">');
   }
   
   # ================================================================= Send footer
   sub send_footer {
     my ($request) = @_;
     $request->print('</body>');
     $request->print(&Apache::lontexconvert::footer());
   }
   
   # ===================================================================== Handler
   sub handler {
       my $request = $_[0];
       if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;}
       else {$Apache::lonxml::debug=0;}
       if ($ENV{'browser.mathml'}) {
    $request->content_type('text/xml');
       } else {
    $request->content_type('text/html');
       }
       $request->send_http_header;
       return OK if $request->header_only;
       my $url = $ENV{'form.url'};
       my $symb = $ENV{'form.symb'};
       my $command = $ENV{'form.command'};
       
       &send_header($request);
       if ($url eq '' && $symb eq '') {
    $request->print("Non-Contextual Access Unsupported:$command:$url:");
       } else {
    $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',
       $ENV{'request.course.id'});
    if ($command eq 'submission') {
       $request->print(&listStudents($request))
    if ($ENV{'form.student'} eq '');
       $request->print(&submission($request))
    if ($ENV{'form.student'} ne '');
    } elsif ($command eq 'viewgrades') {
       $request->print(&viewgrades($request));
    } elsif ($command eq 'editgrades') {
       $request->print(&editgrades($request));
    } else {
       $request->print("Unknown action:$command:");
    }
       }
       &send_footer($request);
       return OK;
 }  }
   
 1;  1;
   
 __END__;  __END__
Removed from v.1.1  
changed lines
  Added in v.1.12

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