doctrine2 - Doctrine swap out table at runtime -

typically when implement entity using doctrine map table explicitly:

<?php /**  * @entity  * @table(name="message")  */ class message {     //... } 

or reply on doctrine implicitly map class name table...i have several tables identical in schema not wish re-create class each time...there fore @ runtime (dynamically) change table name accordingly.

where start or overriding implement odd requirement???

surprisingly (to me), solution simple. have classmetadata of entity , change name of table maps to:

/** @var entitymanager $em */ $class = $em->getclassmetadata('message'); $class->setprimarytable(['name' => 'message_23']); 

you need careful , not change table name after have loaded entities of type message , changed them. it's big chance either produce sql errors on saving (because of table constraints, example), if lucky or modify wrong row (from new table).

i suggest following workflow:

1. set desired table name;
2. load entities;
3. modify them @ will;
4. save them;
5. detach them entity manager (the method entitymanager::clear() quick way start over);
6. go step 1 (i.e. repeat using table).

the step #5 (detach entities entity manager) useful if don't change or don't save entities. allows entity manager use less memory , work faster.

this 1 of many methods can use dynamically set/change mapping. take @ documentation of class classmetadata rest of them. can find more inspiration in documentation page of php mapping.