I have two Models:
- ModelA has an hasMany relationship to ModelB with alias ModelBs
- ModelB has, of course, a belongsTo relationship to ModelA with alias ModelA
So, in my DB, table model_b has a foreign key called model_a_id to table model_a.
Every ModelA MUST have at least one ModelB.
When I create a new ModelA, how can I check if at least one ModelB has been defined?
I implemented the method beforeValidationOnCreate on ModelA where I perform this check. I don't need to check inside beforeValidation because inside ModelB I return false on method delete().
So, inside beforeValidationOnCreate() in ModelA I tried to check the following:
- If $this->ModelBs is set ( isset() ) not empty: it doesn't work. ModelBs is always a Resultset\Simple.
- if $this->ModelBs->count() is greater than 0: it always is (on create), even when a ModelB instance is passed.
How can I do that?