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Diff for /loncom/interface/lonhelper.pm between versions 1.27 and 1.28

version 1.27, 2003/05/12 19:33:57 version 1.28, 2003/05/14 18:58:21
Line 344  sub new { Line 344  sub new {
   
     $self->{TITLE} = shift;      $self->{TITLE} = shift;
           
     Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});  
   
     # If there is a state from the previous form, use that. If there is no      # If there is a state from the previous form, use that. If there is no
     # state, use the start state parameter.      # state, use the start state parameter.
     if (defined $ENV{"form.CURRENT_STATE"})      if (defined $ENV{"form.CURRENT_STATE"})
Line 461  sub declareVar { Line 459  sub declareVar {
   
     my $envname = 'form.' . $var . '.forminput';      my $envname = 'form.' . $var . '.forminput';
     if (defined($ENV{$envname})) {      if (defined($ENV{$envname})) {
         $self->{VARS}->{$var} = $ENV{$envname};          if (ref($ENV{$envname})) {
               $self->{VARS}->{$var} = join('|||', @{$ENV{$envname}});
           } else {
               $self->{VARS}->{$var} = $ENV{$envname};
           }
     }      }
 }  }
   
Line 545  sub display { Line 547  sub display {
     </head>      </head>
     $bodytag      $bodytag
 HEADER  HEADER
     if (!$state->overrideForm()) { $result.="<form name='helpform' method='GET'>"; }      if (!$state->overrideForm()) { $result.="<form name='helpform' method='POST'>"; }
     $result .= <<HEADER;      $result .= <<HEADER;
         <table border="0"><tr><td>          <table border="0"><tr><td>
         <h2><i>$stateTitle</i></h2>          <h2><i>$stateTitle</i></h2>
Line 682  sub addElement { Line 684  sub addElement {
     push @{$self->{ELEMENTS}}, $element;      push @{$self->{ELEMENTS}}, $element;
 }  }
   
   use Data::Dumper;
 sub render {  sub render {
     my $self = shift;      my $self = shift;
     my @results = ();      my @results = ();
Line 689  sub render { Line 692  sub render {
     for my $element (@{$self->{ELEMENTS}}) {      for my $element (@{$self->{ELEMENTS}}) {
         push @results, $element->render();          push @results, $element->render();
     }      }
   
     return join("\n", @results);      return join("\n", @results);
 }  }
   
Line 701  package Apache::lonhelper::element; Line 705  package Apache::lonhelper::element;
   
 =head2 Element Base Class  =head2 Element Base Class
   
 The Apache::lonhelper::element base class provides support methods for  The Apache::lonhelper::element base class provides support for elements
 the elements to use, such as a multiple value processer.  and defines some generally useful tags for use in elements.
   
 B<Methods>:  
   
 =over 4  
   
 =item * process_multiple_choices(formName, varName): Process the form   
 element named "formName" and place the selected items into the helper   
 variable named varName. This is for things like checkboxes or   
 multiple-selection listboxes where the user can select more then   
 one entry. The selected entries are delimited by triple pipes in   
 the helper variables, like this:    
   
  CHOICE_1|||CHOICE_2|||CHOICE_3  
   
 =back  
   
 B<finalcode tag>  B<finalcode tag>
   
Line 831  sub overrideForm { Line 820  sub overrideForm {
     return 0;      return 0;
 }  }
   
 sub process_multiple_choices {  
     my $self = shift;  
     my $formname = shift;  
     my $var = shift;  
   
     # Must extract values from data directly, as there  
     # may be more then one.  
     my @values;  
     for my $formparam (split (/&/, $ENV{QUERY_STRING})) {  
         my ($name, $value) = split(/=/, $formparam);  
         if ($name ne $formname) {  
             next;  
         }  
         $value =~ tr/+/ /;  
         $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;  
         push @values, $value;  
     }  
     $helper->{VARS}->{$var} = join('|||', @values);  
       
     return;  
 }  
   
 1;  1;
   
 package Apache::lonhelper::message;  package Apache::lonhelper::message;
Line 1205  sub postprocess { Line 1172  sub postprocess {
         return 0;          return 0;
     }      }
   
     if ($self->{'multichoice'}) {      if (ref($chosenValue)) {
         $self->process_multiple_choices($self->{'variable'}.'.forminput',          $helper->{VARS}->{$self->{'variable'}} = join('|||', @$chosenValue);
                                         $self->{'variable'});  
     }      }
   
     if (defined($self->{NEXTSTATE})) {      if (defined($self->{NEXTSTATE})) {
Line 1693  BUTTONS Line 1659  BUTTONS
 sub postprocess {  sub postprocess {
     my $self = shift;      my $self = shift;
   
     if ($self->{'multichoice'}) {  
         $self->process_multiple_choices($self->{'variable'}.'.forminput',  
                                         $self->{'variable'});  
     }  
   
     if ($self->{'multichoice'} && !$helper->{VARS}->{$self->{'variable'}}) {      if ($self->{'multichoice'} && !$helper->{VARS}->{$self->{'variable'}}) {
         $self->{ERROR_MSG} = 'You must choose at least one resource to continue.';          $self->{ERROR_MSG} = 'You must choose at least one resource to continue.';
         return 0;          return 0;
Line 1855  sub postprocess { Line 1816  sub postprocess {
         return 0;          return 0;
     }      }
   
     if ($self->{'multichoice'}) {  
         $self->process_multiple_choices($self->{'variable'}.'.forminput',  
                                         $self->{'variable'});  
     }  
     if (defined($self->{NEXTSTATE})) {      if (defined($self->{NEXTSTATE})) {
         $helper->changeState($self->{NEXTSTATE});          $helper->changeState($self->{NEXTSTATE});
     }      }
Line 2143  sub postprocess { Line 2100  sub postprocess {
         return 0;          return 0;
     }      }
   
     if ($self->{'multichoice'}) {  
         $self->process_multiple_choices($self->{'variable'}.'.forminput',  
                                         $self->{'variable'});  
     }  
     if (defined($self->{NEXTSTATE})) {      if (defined($self->{NEXTSTATE})) {
         $helper->changeState($self->{NEXTSTATE});          $helper->changeState($self->{NEXTSTATE});
     }      }
Removed from v.1.27  
changed lines
  Added in v.1.28

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