Mitch Viner

Removing Entities in Doctrine2

Posted by Mitch Viner on 12 January 2012 | 0 Comments

Tags: doctrine2, symfony2

Removing entities in doctrine2 is concpetually and easy process. I'm referring to removing the actual model class and the physical php file. I just had to remove a few of them from my application. I thought, easy, I'll delete the file, drop the table, remove any references in my other entities and clear the cache and I should be good to go So needless to say, I was surprised to get an error saying that the ClassMetadataFacrtory.php file could not find one of my entities on line 223.

Well, I beat my head against the wall on this for hours, I walked through the code using the stack trace and in my debugging I found a couple references to my existing classes in other entities. Long story short, I forgot I had extended the User entity to own one of the entities I was removing. This was causing everything! I updated the User entity to remove the reference to the now deleted Entity.

Moral of the story: Make sure you have double checked all entities to ensure the one(s) you are removing are not referenced anywhere within the model layer.