From: Nigel Metheringham <nigelm@cpan.org>
Date: Fri, 7 May 2010 13:28:06 +0000 (+0000)
Subject: Added reference to cascade_* in relationship attributes
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=5f7ac523d6179423620e5d20a83d3245a2f29385;p=dbsrgits%2FDBIx-Class-Historic.git

Added reference to cascade_* in relationship attributes
---

diff --git a/lib/DBIx/Class/Relationship/Base.pm b/lib/DBIx/Class/Relationship/Base.pm
index 62133a8..2f8083a 100644
--- a/lib/DBIx/Class/Relationship/Base.pm
+++ b/lib/DBIx/Class/Relationship/Base.pm
@@ -122,6 +122,37 @@ is creating constraints where it shouldn't, or not creating them where it
 should, set this attribute to a true or false value to override the detection
 of when to create constraints.
 
+=item cascade_copy
+
+If C<cascade_copy> is true on a C<has_many> relationship for an
+object, then when you copy the object all the related objects will
+be copied too. To turn this behaviour off, pass C<< cascade_copy => 0 >> 
+in the C<$attr> hashref. The behaviour defaults to C<< cascade_copy => 1 >>.
+
+=item cascade_delete
+
+By default, DBIx::Class cascades deletes across C<has_many> and
+C<might_have> relationships. You can disable this behaviour on a
+per-relationship basis by supplying C<< cascade_delete => 0 >> in the
+relationship attributes.
+
+The cascaded operations are performed after the requested delete,
+so if your database has a constraint on the relationship, it will
+have deleted/updated the related records or raised an exception
+before DBIx::Class gets to perform the cascaded operation.
+
+=item cascade_update
+
+By default, DBIx::Class cascades updates across C<has_many> and
+C<might_have> relationships. You can disable this behaviour on a
+per-relationship basis by supplying C<< cascade_update => 0 >> in the
+relationship attributes.
+
+The cascaded operations are performed after the requested update,
+so if your database has a constraint on the relationship, it will
+have updated/updated the related records or raised an exception
+before DBIx::Class gets to perform the cascaded operation.
+
 =item on_delete / on_update
 
 If you are using L<SQL::Translator> to create SQL for you, you can use these