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Diff for /loncom/homework/response.pm between versions 1.97 and 1.104

version 1.97, 2004/03/31 05:23:59 version 1.104, 2004/09/24 19:44:00
Line 46  sub start_response { Line 46  sub start_response {
     push (@Apache::inputtags::response,$id);      push (@Apache::inputtags::response,$id);
     push (@Apache::inputtags::responselist,$id);      push (@Apache::inputtags::responselist,$id);
     @Apache::inputtags::inputlist=();      @Apache::inputtags::inputlist=();
     if ($Apache::inputtags::part eq '') {      if ($Apache::inputtags::part eq '' && 
    !$Apache::lonhomework::ignore_response_errors) {
  &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));   &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
     }      }
     if ($Apache::inputtags::response_with_no_part &&      if ($Apache::inputtags::response_with_no_part &&
Line 84  sub end_hintresponse { Line 85  sub end_hintresponse {
     return '';      return '';
 }  }
   
 # used by response to set the non-safe space random number generator to something  my @randomseeds;
 # that is stable and unique based on the part number and response number  sub pushrandomnumber {
       my $rand_alg=&Apache::lonnet::get_rand_alg();
       if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
    $rand_alg eq '64bit2') {
    # do nothing
       } else {
    my @seed=&Math::Random::random_get_seed();
    push (@randomseeds,\@seed);
       }
       &Apache::response::setrandomnumber();
   }
   sub poprandomnumber {
       my $rand_alg=&Apache::lonnet::get_rand_alg();
       if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
    $rand_alg eq '64bit2') {
    return;
       }
       my $seed=pop(@randomseeds);
       if ($seed) {
    &Math::Random::random_set_seed(@$seed);
       } else {
    &Apache::lonxml::error("Unable to restore random algorithm.");
       }
   }
 sub setrandomnumber {  sub setrandomnumber {
     my $rndseed;      my $rndseed;
     $rndseed=&Apache::structuretags::setup_rndseed();      $rndseed=&Apache::structuretags::setup_rndseed();
     if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }      if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
     &Apache::lonxml::debug("randseed $rndseed");      &Apache::lonxml::debug("randseed $rndseed");
     #  $rndseed=unpack("%32i",$rndseed);      #  $rndseed=unpack("%32i",$rndseed);
     my $rndmod=(&Apache::lonnet::numval($Apache::inputtags::part) << 10);      my $rand_alg=&Apache::lonnet::get_rand_alg();
     if (defined($Apache::inputtags::response['-1'])) {      my $rndmod;
  $rndmod+=&Apache::lonnet::numval($Apache::inputtags::response[-1]);      if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
     }   $rand_alg eq '64bit2') {
     if ($rndseed =~/,/) {   $rndmod=(&Apache::lonnet::numval($Apache::inputtags::part) << 10);
  {   if (defined($Apache::inputtags::response[-1])) {
     use integer;      $rndmod+=&Apache::lonnet::numval($Apache::inputtags::response[-1]);
     my ($num1,$num2)=split(/,/,$rndseed);  
     $num1+=$rndmod;  
     $num2+=$rndmod;  
     $rndseed="$num1,$num2";  
  }   }
     } else {      } else {
    $rndmod=(&Apache::lonnet::numval2($Apache::inputtags::part) << 10);
    if (defined($Apache::inputtags::response[-1])) {
       $rndmod+=&Apache::lonnet::numval2($Apache::inputtags::response[-1]);
    }
       }
       if ($rndseed =~/([,:])/) {
    my $char=$1;
    use integer;
    my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
    $num1+=$rndmod;
    $num2+=$rndmod;
    $rndseed=$num1.$char.$num2;
       } else {
  $rndseed+=$rndmod;   $rndseed+=$rndmod;
     }      }
     &Apache::lonnet::setup_random_from_rndseed($rndseed);      &Apache::lonnet::setup_random_from_rndseed($rndseed);
Line 188  sub meta_part_order { Line 221  sub meta_part_order {
     if (@Apache::inputtags::partlist) {      if (@Apache::inputtags::partlist) {
  my @parts=@Apache::inputtags::partlist;   my @parts=@Apache::inputtags::partlist;
  shift(@parts);   shift(@parts);
  return '<partorder>'.join(',',@parts).'</partorder>';   return '<partorder>'.join(',',@parts).'</partorder>'."\n";
     } else {      } else {
  return '<partorder>0</partorder>';   return '<partorder>0</partorder>'."\n";
       }
   }
   
   sub meta_response_order {
       if (@Apache::inputtags::responselist) {
    return '<responseorder>'.join(',',@Apache::inputtags::responselist).
       '</responseorder>'."\n";
     }      }
 }  }
   
Line 199  sub check_for_previous { Line 239  sub check_for_previous {
     my %previous;      my %previous;
     $previous{'used'} = 0;      $previous{'used'} = 0;
     foreach my $key (sort(keys(%Apache::lonhomework::history))) {      foreach my $key (sort(keys(%Apache::lonhomework::history))) {
  if ($key =~ /resource\.$partid\.$id\.submission/) {   if ($key =~ /resource\.$partid\.$id\.submission$/) {
     &Apache::lonxml::debug("Trying $key");      &Apache::lonxml::debug("Trying $key");
     my $pastresponse=$Apache::lonhomework::history{$key};      my $pastresponse=$Apache::lonhomework::history{$key};
     if ($pastresponse eq $curresponse) {      if ($pastresponse eq $curresponse) {
Line 460  sub answer_footer { Line 500  sub answer_footer {
 }  }
   
 sub showallfoils {  sub showallfoils {
     my $return=0;      if (defined($ENV{'form.showallfoils'})) {
     if (defined($ENV{'form.showallfoils'}) &&   my ($symb)=&Apache::lonxml::whichuser();
  $ENV{'request.state'} eq 'construct') {   if ($ENV{'request.state'} eq 'construct' || 
  $return=1;      ($ENV{'user.adv'} && $symb eq '')) {
       return 1;
    }
     }      }
     return $return;      return 0;
 }  }
   
 sub getresponse {  sub getresponse {
Line 490  sub getresponse { Line 532  sub getresponse {
  $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=   $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
     $response;      $response;
  if ($resulttype ne 'letter') {   if ($resulttype ne 'letter') {
     $response = $let_to_num{$response};      if ($resulttype eq 'A is 1') {
    $response = $let_to_num{$response};
       } else {
    $response = $let_to_num{$response}+1;
       }
  }   }
     } else {      } else {
  $response = $ENV{$formparm};   $response = $ENV{$formparm};
Removed from v.1.97  
changed lines
  Added in v.1.104

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