Symfony 2.8 : one to many relationship

Question

I have two tables, Event and Product, one Event has multiple products and one product can be in multiple Events. Here I think it's a OneToMany Unidirectional relationship. In the form of Event creation I want to have the list of available products in the database and add some products to the event (collection of products).

What's the best way to do that?

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1. Implement the onetomany or
2. Go in the way to implement ManyToMany and create a third table EventProducts

Can anyone help me to choose the best way and how to implement it?

Answer 1

1)Implement the onetomany:

In this case you can get the event products list : $event->getProducts

But when you need to access to the event from the product entity via $product->getEvent() !!!!!! this is impossible because the relation is unidirectional

2) Go in the way to implement ManyToMany and create a third table EventProducts :

The solution is this one and create the third entity EventProduct

Hope this can helps