问题
Using Symfony 2.5 and Doctrine 2.2, I have several databases for an application I'm working on, let's call one "Main" and the other "Secondary". There are currently two entity managers configured. In one migration I want to create a table in "Secondary" but it only wants to create the table in "Main."
A migration can be ContainerAware, so I can get another EntityManager, but I have been unable to override the default one. Any able to help? Thanks in advance!
回答1:
Just pass --em parameter when generating diff.
Example:
php app/console doctrine:migrations:diff --em=uac # will use uac entity manager
php app/console doctrine:migrations:diff # will use the default entity manager
To exclude custom tables from removal use:
doctrine:
dbal:
schema_filter: ~^(?!t_)~
as per this document, alternatively you can pass filter argument at the runtime:
app/console doctrine:migrations:diff --em=uac --filter-expression=/whatever/
来源：https://stackoverflow.com/questions/27115881/symfony-doctrine-migrations-how-can-i-use-multiple-entity-managers