Bug 577054: ChoiceInterface was denying the deletion of any value if

Bugzilla/Field/ChoiceInterface.pm

@@ -39,11 +39,11 @@ sub FIELD_NAME { return $_[0]->DB_TABLE; }
 sub _check_if_controller {
     my $self = shift;
     my $vis_fields = $self->controls_visibility_of_fields;
-    my $values     = $self->controlled_values;
-    if (@$vis_fields || scalar(keys %$values)) {
+    my $values = $self->controlled_values_array;
+    if (@$vis_fields || @$values) {
         ThrowUserError('fieldvalue_is_controller',
             { value => $self, fields => [map($_->name, @$vis_fields)],
-              vals => $values });
+              vals => $self->controlled_values });
     }
 }
 
@@ -142,6 +142,12 @@ sub controlled_values {
     return $self->{controlled_values};
 }
 
+sub controlled_values_array {
+    my ($self) = @_;
+    my $values = $self->controlled_values;
+    return [map { @{ $values->{$_} } } keys %$values];
+}
+
 sub is_visible_on_bug {
     my ($self, $bug) = @_;
 

template/en/default/admin/fieldvalues/confirm-delete.html.tmpl

@@ -63,7 +63,7 @@
 
 [% IF value.is_default || value.bug_count || (value_count == 1)
       || value.controls_visibility_of_fields.size
-      || value.controlled_values.size 
+      || value.controlled_values_array.size 
 %]
 
   <p>Sorry, but the '[% value.name FILTER html %]' value cannot be deleted
@@ -123,7 +123,7 @@
       </li>
     [% END %]
 
-    [% IF value.controlled_values.size %]
+    [% IF value.controlled_values_array.size %]
       <li>This value controls the visibility of the following values in
         other fields:<br>
        [% FOREACH field_name = value.controlled_values.keys %]