-ident implementation

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Manual / Cookbook.pod

diff --git a/lib/DBIx/Class/Manual/Cookbook.pod b/lib/DBIx/Class/Manual/Cookbook.pod
index 3e3f5db..83f7cee 100644 (file)
--- a/lib/DBIx/Class/Manual/Cookbook.pod
+++ b/lib/DBIx/Class/Manual/Cookbook.pod
@@ -349,7 +349,7 @@ from, select, and +select attributes.
   my $rs = $cdrs->search({
     year => {
       '=' => $cdrs->search(
-        { artist_id => { '=' => \'me.artist_id' } },
+        { artist_id => { '=' => { -ident => 'me.artist_id' } } },
         { alias => 'inner' }
       )->get_column('year')->max_rs->as_query,
     },
@@ -1669,7 +1669,8 @@ brackets, or a C<"> or C<'>:
 
 Check the documentation of your database for the correct quote
 characters to use. C<name_sep> needs to be set to allow the SQL
-generator to put the quotes the correct place.
+generator to put the quotes the correct place, and defaults to
+C<.> if not supplied.
 
 In most cases you should set these as part of the arguments passed to
 L<DBIx::Class::Schema/connect>:
@@ -1877,7 +1878,7 @@ just looking for this.
 For example, say that you have three columns, C<id>, C<number>, and
 C<squared>.  You would like to make changes to C<number> and have
 C<squared> be automagically set to the value of C<number> squared.
-You can accomplish this by overriding C<store_column>:
+You can accomplish this by overriding C<store_column> in your L<Result class|DBIx::Class::Manual::Glossary/Result class>:
 
   sub store_column {
     my ( $self, $name, $value ) = @_;
@@ -1890,6 +1891,10 @@ You can accomplish this by overriding C<store_column>:
 Note that the hard work is done by the call to C<next::method>, which
 redispatches your call to store_column in the superclass(es).
 
+Generally, if this is a calculation your database can easily do, try
+and avoid storing the calculated value, it is safer to calculate when
+needed, than rely on the data being in sync.
+
 =head2 Automatically creating related objects
 
 You might have a class C<Artist> which has many C<CD>s.  Further, you