Question

I’m sure there is a very simple solution to this, but the explanation is complex, so please do bear with me.

I have a registration form Registration::add() and it comprises of three sections.

1. The first is the Registration data, a number of fields.
2. The second is checkboxes from three related HABTM models, Role, Category and CategoryChild
3. Third is creating a record in User

My Registration model has a user_id and I need to save the generated User.id into that field.

I’m sure that I should be able to do this using the model relationships, as the User model saves the User.registration_id fine, but it doesn’t seem to be writing into the Registration model.

Do I need to create another field in my add.ctp view so that the field is present in the $this->data->request array? I would much rather do this, than get embroiled in faffing with beforeSave() and afterSave().

So do I just need to create

$this->Form->input('Registration.user_id', array('type'=>'hidden'));

My relationships, for reference,

Registration hasOne User
Registration hasAndBelongsToMany Category
Registration hasAndBelongsToMany CategoryChild
Registration hasAndBelongsToMany Role
User hasOne Registration

I’m currently using saveAll($this->request->data) to save all my data, and it’s managing to save everything except Registration.user_id

Answer 1

Your Relationships have

Registration hasOne User

However you have both a Registration.user_id and a User.registration_id implying that you need hasAndBelongsToMany relationship.

Just in case you’re not using the Cake Baker to generate the models it is very useful.