that the Pool object should get.
my $schema = Schema::Class->clone;
- $schema->storage_type( ['::DBI::Replicated', {balancer=>'::Random'}] );
+ $schema->storage_type(['::DBI::Replicated', { balancer_type => '::Random' }]);
$schema->connection(...);
Next, you need to add in the Replicants. Basically this is an array of
_dbh_get_info
_determine_connector_driver
+ _extract_driver_from_connect_info
_describe_connection
_warn_undetermined_driver
sql_quote_char
sql_name_sep
+ perl_renderer
+
_prefetch_autovalues
_perform_autoinc_retrieval
_autoinc_supplied_for_op
=head2 all_storages
-Returns an array of of all the connected storage backends. The first element
-in the returned array is the master, and the remainings are each of the
+Returns an array of all the connected storage backends. The first element
+in the returned array is the master, and the rest are each of the
replicants.
=cut
Due to the fact that replicants can lag behind a master, you must take care to
make sure you use one of the methods to force read queries to a master should
you need realtime data integrity. For example, if you insert a row, and then
-immediately re-read it from the database (say, by doing $row->discard_changes)
+immediately re-read it from the database (say, by doing $result->discard_changes)
or you insert a row and then immediately build a query that expects that row
to be an item, you should force the master to handle reads. Otherwise, due to
the lag, there is no certainty your data will be in the expected state.
Otherwise, you can force a single query to use the master with the 'force_pool'
attribute:
- my $row = $resultset->search(undef, {force_pool=>'master'})->find($pk);
+ my $result = $resultset->search(undef, {force_pool=>'master'})->find($pk);
-This attribute will safely be ignore by non replicated storages, so you can use
+This attribute will safely be ignored by non replicated storages, so you can use
the same code for both types of systems.
Lastly, you can use the L</execute_reliably> method, which works very much like
Based on code originated by:
- Norbert Csongrádi <bert@cpan.org>
- Peter Siklósi <einon@einon.hu>
+ Norbert Csongrádi <bert@cpan.org>
+ Peter Siklósi <einon@einon.hu>
=head1 LICENSE