Zend_Application_Resource_MultidbZend_Application_Resource_Multidb is used to initialize
multiple Database connections. You can use the same options as you can with
the Db Resource Plugin.
However, for specifying a default connection, you can also use the 'default' directive.
Setting up multiple Db Connections
Below is an example INI configuration that can be used to initialize
two Db Connections.
Retrieving a specific database adapter
When using this resource plugin you usually will want to retrieve
a specific database. This can be done by using the resource's
getDb(). The method
getDb() returns an instance of a class that
extends Zend_Db_Adapter_Abstract. If you have not
set a default database, an exception will be thrown when this method
is called without specifying a parameter.
getPluginResource('multidb');
$db1 = $resource->getDb('db1');
$db2 = $resource->getDb('db2');
$defaultDb = $resource->getDb();
]]>Retrieving the default database adapter
Additionally, you can retrieve the default database adapter
by using the method getDefaultDb().
If you have not set a default adapter, the first configured db
adapter will be returned. Unless you specify FALSE
as first parameter, then NULL
will be returned when no default database adapter was set.
Below is an example that assumes the Multidb resource plugin has been configured
with the INI sample above:
getPluginResource('multidb');
$db2 = $resource->getDefaultDb();
// Same config, but now without a default db:
$db1 = $resource->getDefaultDb();
$null = $resource->getDefaultDb(false); // null
]]>