Bug 514618: Allow restricting the visibility and values of fields by

Bugzilla/Bug.pm

@@ -3415,9 +3415,13 @@ sub choices {
     if (!grep($_->name eq $self->product_obj->name, @products)) {
         unshift(@products, $self->product_obj);
     }
+    my %class_ids = map { $_->classification_id => 1 } @products;
+    my $classifications = 
+        Bugzilla::Classification->new_from_list([keys %class_ids]);
 
     my %choices = (
         bug_status => $self->statuses_available,
+        classification => $classifications,
         product    => \@products,
         component  => $self->product_obj->components,
         version    => $self->product_obj->versions,

Bugzilla/Classification.pm

@@ -20,11 +20,12 @@ use strict;
 package Bugzilla::Classification;
 
 use Bugzilla::Constants;
+use Bugzilla::Field;
 use Bugzilla::Util;
 use Bugzilla::Error;
 use Bugzilla::Product;
 
-use base qw(Bugzilla::Object);
+use base qw(Bugzilla::Field::ChoiceInterface Bugzilla::Object);
 
 ###############################
 ####    Initialization     ####
@@ -111,6 +112,14 @@ sub _check_sortkey {
     return $sortkey;
 }
 
+#####################################
+# Implement Bugzilla::Field::Choice #
+#####################################
+
+use constant FIELD_NAME => 'classification';
+use constant is_default => 0;
+use constant is_active => 1;
+
 ###############################
 ####       Methods         ####
 ###############################

Bugzilla/Constants.pm

@@ -403,6 +403,7 @@ use constant EMPTY_DATETIME_REGEX => qr/^[0\-:\sA-Za-z]+$/;
 # See the POD for Bugzilla::Field/is_abnormal to see why these are listed
 # here.
 use constant ABNORMAL_SELECTS => qw(
+    classification
     product
     component
 );

Bugzilla/Field.pm

@@ -166,7 +166,7 @@ use constant DEFAULT_FIELDS => (
     {name => 'short_desc',   desc => 'Summary',    in_new_bugmail => 1,
      is_mandatory => 1, buglist => 1},
     {name => 'classification', desc => 'Classification', in_new_bugmail => 1,
-     buglist => 1},
+     type => FIELD_TYPE_SINGLE_SELECT, buglist => 1},
     {name => 'product',      desc => 'Product',    in_new_bugmail => 1,
      type => FIELD_TYPE_SINGLE_SELECT, buglist => 1},
     {name => 'version',      desc => 'Version',    in_new_bugmail => 1,

Bugzilla/Field/Choice.pm

@@ -64,6 +64,7 @@ use constant VALIDATORS => {
 
 use constant CLASS_MAP => {
     bug_status => 'Bugzilla::Status',
+    classification => 'Bugzilla::Classification',
     component  => 'Bugzilla::Component',
     product    => 'Bugzilla::Product',
 };

Bugzilla/Product.pm

@@ -791,6 +791,13 @@ sub flag_types {
     return $self->{'flag_types'};
 }
 
+sub classification {
+    my $self = shift;
+    $self->{'classification'} ||= 
+        new Bugzilla::Classification($self->classification_id);
+    return $self->{'classification'};
+}
+
 ###############################
 ####      Accessors      ######
 ###############################
@@ -853,6 +860,7 @@ Bugzilla::Product - Bugzilla product class.
     my $bug_ids         = $product->bug_ids();
     my $has_access      = $product->user_has_access($user);
     my $flag_types      = $product->flag_types();
+    my $classification  = $product->classification();
 
     my $id               = $product->id;
     my $name             = $product->name;
@@ -1021,6 +1029,14 @@ a group is valid in a particular product.)
 
  Returns:     Two references to an array of flagtype objects.
 
+=item C<classification()>
+
+ Description: Returns the classification the product belongs to.
+
+ Params:      none.
+
+ Returns:     A Bugzilla::Classification object.
+
 =back
 
 =head1 SUBROUTINES

enter_bug.cgi

@@ -416,7 +416,8 @@ foreach my $field (@enter_bug_fields) {
 }
 
 # This allows the Field visibility and value controls to work with the
-# Product field as a parent.
+# Classification and Product fields as a parent.
+$default{'classification'} = $product->classification->name;
 $default{'product'} = $product->name;
 
 if ($cloned_bug_id) {

js/field.js

@@ -375,6 +375,20 @@ function updateCommentTagControl(checkbox, form) {
 }
 
 /**
+ * Reset the value of the classification field and fire an event change
+ * on it.  Called when the product changes, in case the classification
+ * field (which is hidden) controls the visibility of any other fields.
+ */
+function setClassification() {
+    var classification = document.getElementById('classification');
+    var product = document.getElementById('product');
+    var selected_product = product.value; 
+    var select_classification = all_classifications[selected_product];
+    classification.value = select_classification;
+    bz_fireEvent(classification, 'change');
+}
+
+/**
  * Says that a field should only be displayed when another field has
  * a certain value. May only be called after the controller has already
  * been added to the DOM.

template/en/default/bug/edit.html.tmpl

@@ -128,6 +128,15 @@
 
 [% END %]
 
+  /* Index all classifications so we can keep track of the classification
+   * for the selected product, which could control field visibility.
+   */
+  var all_classifications = new Array([% bug.choices.product.size %]);
+  [%- FOREACH product = bug.choices.product %]
+      all_classifications['[% product.name FILTER js %]'] = '
+          [%- product.classification.name FILTER js %]';
+  [%- END %]
+
   //-->
   </script>
 
@@ -319,7 +328,6 @@
     [%#############%]
     [%#  PRODUCT  #%]
     [%#############%]
-    
     <tr>
        [% INCLUDE bug/field.html.tmpl
             bug = bug, field = bug_fields.product,
@@ -327,6 +335,19 @@
             desc_url = 'describecomponents.cgi', value = bug.product
             editable = bug.check_can_change_field('product', 0, 1) %]
     </tr>
+
+    [%# Classification is here so that it can be used in value controllers
+      # and visibility controllers. It comes after product because
+      # it uses some javascript that depends on the existence of the
+      # product field.
+      #%]
+    <tr class="bz_default_hidden">
+       [% INCLUDE bug/field.html.tmpl
+            bug = bug field = bug_fields.classification
+            override_legal_values = bug.choices.classification
+            value = bug.classification
+            editable = bug.check_can_change_field('product', 0, 1) %]
+    </tr>
     [%###############%]    
     [%#  Component  #%]
     [%###############%]

template/en/default/bug/field-events.js.tmpl

@@ -39,3 +39,6 @@
                   [% legal_value.id FILTER js %]);
   [% END %]
 [% END %]
+[% IF field.name == 'classification' %]
+  YAHOO.util.Event.on('product', 'change', setClassification);
+[% END %]