From: Karen Etheridge <ether@cpan.org>
Date: Mon, 28 Jul 2014 19:02:23 +0000 (-0700)
Subject: Document including literal SQL and values in a resultset with "columns"
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=08e63d278057a059851b114425ddaa713dfea036;p=dbsrgits%2FDBIx-Class-Historic.git

Document including literal SQL and values in a resultset with "columns"
---

diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index d8c4628..3ec0268 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -4094,6 +4094,20 @@ chain such that it matches existing relationships:
         },
     });
 
+Like elsewhere, literal SQL or literal values can be included by using a
+scalar reference or a literal bind value, and these values will be available
+in the result with C<get_column> (see also
+L<SQL::Abstract/Literal SQL and value type operators>):
+
+    # equivalent SQL: SELECT 1, 'a string', IF(x,1,2) ...
+    columns => [
+        {
+            foo => \1,
+            bar => \q{'a string'},
+            baz => \[ '?', 'IF(x,1,2)' ],
+        }
+    ]
+
 =head2 +columns
 
 B<NOTE:> You B<MUST> explicitly quote C<'+columns'> when using this attribute.