From 3cea91884b28b52df4e38f2ba88c00b65071a81f Mon Sep 17 00:00:00 2001
From: "mkanat%bugzilla.org" <>
Date: Sat, 25 Oct 2008 04:11:30 +0000
Subject: Bug 291433: Ability to have custom fields whose visibility depends on
 the values of other fields Patch By Max Kanat-Alexander <mkanat@bugzilla.org>
 r=bbaetz, a=mkanat

---
 Bugzilla/Field/Choice.pm | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'Bugzilla/Field')

diff --git a/Bugzilla/Field/Choice.pm b/Bugzilla/Field/Choice.pm
index dbdfea1a3..4da644f1d 100644
--- a/Bugzilla/Field/Choice.pm
+++ b/Bugzilla/Field/Choice.pm
@@ -186,6 +186,10 @@ sub remove_from_db {
         ThrowUserError("fieldvalue_still_has_bugs",
                        { field => $self->field, value => $self });
     }
+    if (my @vis_fields = @{ $self->controls_visibility_of_fields }) {
+        ThrowUserError('fieldvalue_is_controller',
+            { value => $self, fields => [map($_->name, @vis_fields)] });
+    }
     $self->SUPER::remove_from_db();
 }
 
@@ -248,6 +252,14 @@ sub is_static {
     return 0;
 }
 
+sub controls_visibility_of_fields {
+    my $self = shift;
+    $self->{controls_visibility_of_fields} ||= Bugzilla::Field->match(
+        { visibility_field_id => $self->field->id, 
+          visibility_value_id => $self->id });
+    return $self->{controls_visibility_of_fields};
+}
+
 ############
 # Mutators #
 ############
-- 
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