Support for 'url' parameter in config

DependencyInjection/Configuration.php

@@ -191,6 +191,7 @@ private function configureDbalDriverNode(ArrayNodeDefinition $node)
     {
         $node
             ->children()
+                ->scalarNode('url')->info('A URL with connection information; any parameter value parsed from this string will override explicitly set parameters')->end()
                 ->scalarNode('dbname')->end()
                 ->scalarNode('host')->defaultValue('localhost')->end()
                 ->scalarNode('port')->defaultNull()->end()

Resources/config/schema/doctrine-1.0.xsd

@@ -41,6 +41,7 @@
     </xsd:attributeGroup>
 
     <xsd:attributeGroup name="driver-config">
+        <xsd:attribute name="url" type="xsd:string" />
         <xsd:attribute name="dbname" type="xsd:string" />
         <xsd:attribute name="host" type="xsd:string" />
         <xsd:attribute name="port" type="xsd:string" />

Resources/doc/configuration.rst

@@ -267,6 +267,14 @@ Doctrine DBAL Configuration
     accept, converted to the XML or YAML naming standards that Symfony
     enforces. See the Doctrine `DBAL documentation`_ for more information.
 
+.. note::
+
+    When specifying a "url" parameter, any information extracted from that
+    URL will override explicitly set parameters. An example database URL
+    would be "mysql://snoopy:redbaron@localhost/baseball", and any explicitly
+    set driver, user, password and dbname parameter would be overridden by
+    this URL. See the Doctrine `DBAL documentation`_ for more information.
+
 Besides default Doctrine options, there are some Symfony-related ones that you
 can configure. The following block shows all possible configuration keys:
 
@@ -276,6 +284,7 @@ can configure. The following block shows all possible configuration keys:
 
         doctrine:
             dbal:
+                url:                      mysql://user:secret@localhost:1234/otherdatabase # this would override the values below
                 dbname:                   database
                 host:                     localhost
                 port:                     1234
@@ -316,6 +325,7 @@ can configure. The following block shows all possible configuration keys:
         <doctrine:config>
             <doctrine:dbal
                 name="default"
+                url="mysql://user:secret@localhost:1234/otherdatabase" <!-- this would override the values below -->
                 dbname="database"
                 host="localhost"
                 port="1234"