An issue I’ve come across a couple of times recently, by making a small mistake, is persisting a form input to Doctrine using Symfony2. The issue I was having, was that when calling the persist method of the Entity Manager, I was passing it the form instead of the entity. I came across it due to the controller I was working on being quite odd, but it’s very easy to just type the wrong name as lots of people use very similar names for their form and the entity it relates to, for obvious reasons. The key here is to …