From: Jess Robinson <castaway@desert-island.me.uk>
Date: Sat, 14 Oct 2006 19:41:07 +0000 (+0000)
Subject: Add func example for resultsetcolumn
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=709353afc62951025fc2d497eb0f33bd6052a98a;p=dbsrgits%2FDBIx-Class-Historic.git

Add func example for resultsetcolumn
---

diff --git a/lib/DBIx/Class/Manual/Cookbook.pod b/lib/DBIx/Class/Manual/Cookbook.pod
index 7fed731..a9b9aaa 100644
--- a/lib/DBIx/Class/Manual/Cookbook.pod
+++ b/lib/DBIx/Class/Manual/Cookbook.pod
@@ -442,6 +442,17 @@ Or just iterate through the values of this column only:
     print $c;
   }
 
+C<ResultSetColumn> only has a limited number of built-in functions, if
+you need one that it doesn't have, then you can use the C<func> method
+instead:
+
+  my $avg = $cost->func('AVERAGE');
+
+This will cause the following SQL statement to be run:
+
+  SELECT AVERAGE(Cost) FROM Items me
+
+Which will of course only work if your database supports this function.
 See L<DBIx::Class::ResultSetColumn> for more documentation.
 
 =head2 Using relationships