From e068bcc76fe842fbcac8249ed29593f8a17b0c24 Mon Sep 17 00:00:00 2001
From: Dave Lawrence <dlawrence@mozilla.com>
Date: Tue, 18 Dec 2012 15:17:52 -0500
Subject: Bug 813628 - New extension hook for Bugzilla::Bug::update called
 bug_start_of_update r/a=LpSolit

---
 Bugzilla/Bug.pm  |  4 ++++
 Bugzilla/Hook.pm | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)

(limited to 'Bugzilla')

diff --git a/Bugzilla/Bug.pm b/Bugzilla/Bug.pm
index efad66f62..1f2b3cfea 100644
--- a/Bugzilla/Bug.pm
+++ b/Bugzilla/Bug.pm
@@ -791,6 +791,10 @@ sub update {
 
     my ($changes, $old_bug) = $self->SUPER::update(@_);
 
+    Bugzilla::Hook::process('bug_start_of_update',
+        { timestamp => $delta_ts, bug => $self,
+           old_bug => $old_bug, changes => $changes });
+
     # Certain items in $changes have to be fixed so that they hold
     # a name instead of an ID.
     foreach my $field (qw(product_id component_id)) {
diff --git a/Bugzilla/Hook.pm b/Bugzilla/Hook.pm
index 5ac07046e..4c8933b16 100644
--- a/Bugzilla/Hook.pm
+++ b/Bugzilla/Hook.pm
@@ -421,6 +421,39 @@ to the user.
 
 =back
 
+=head2 bug_start_of_update
+
+This happens near the beginning of L<Bugzilla::Bug/update>, after L<Bugzilla::Object/update>
+is called, but before all other special changes are made to the database. Once use case is
+this allows for adding your own entries to the C<changes> hash which gets added to the
+bugs_activity table later keeping you from having to do it yourself. Also this is also helpful
+if your extension needs to add CC members, flags, keywords, groups, etc. This generally
+occurs inside a database transaction.
+
+Params:
+
+=over
+
+=item C<bug> 
+
+The changed bug object, with all fields set to their updated values.
+
+=item C<old_bug>
+
+A bug object pulled from the database before the fields were set to
+their updated values (so it has the old values available for each field).
+
+=item C<timestamp> 
+
+The timestamp used for all updates in this transaction, as a SQL date
+string.
+
+=item C<changes> 
+
+The hash of changed fields. C<< $changes->{field} = [old, new] >>
+
+=back
+
 =head2 bug_url_sub_classes
 
 Allows you to add more L<Bugzilla::BugUrl> sub-classes.
-- 
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