CakePHP关系模型：完全忽略模型

Question

I have a pretty simple relational model setup. When using $this->model->find('all',$params) , the results do not return the complete relational data set. I'm pulling my hair out here.

Here's my table setup:

Table qs_skus:

id (AI, PK)
sku_name
profile
...

Table net_lengths_in_skus:

id (AI,PK)
quick_ship_skus_id
net_lengths_id

Table net_lengths

id (AI,PK)
name

The way the models are configured are:

• Model QuickShipSku $hasMany=array('NetLengthsInSku')
• Model NetLengthsInSku $hasOne='NetLength'
• All models have $actAs = array('Containable')

When doing the following, I get only the first relationship queried, the last relationship is completely ignored:

$model = $this->QuickShipSku->find('all',
        array(
            'contain' => array(
                'NetLengthsInSku' => array('NetLength')
        )
    );

Output:

Array
(
    [0] => Array
        (
            [QuickShipSku] => Array
                (
                    [id] => 3
                    [sku_name] => 1112-8
                    [product_name] => Product A
                    [sku_specie_id] => 1
                    [members_ft] => 8
                    [profile] => Profile Description
                )

            [NetLengthsInSku] => Array
                (
                    [0] => Array
                        (
                            [id] => 10
                            [quick_ship_skus_id] => 3
                            [quick_ship_net_length_id] => 1
                        )
                )
        )
    )

For each NetLengthsInSku there should be a NetLength , but it's not even being queried.

Any ideas?

Answer 1

What you have here is a many to many relationship. That means an association called hasAndBelongsToMany.

If you are using Cake 2.x you should have something like this:

class QsSku extends AppModel {
    public $hasAndBelongsToMany = array(
      'NetLength' =>
        array(
            'className' => 'NetLength',
            'joinTable' => 'net_lengths_in_skus',
            'foreignKey' => 'quick_ship_skus_id',
            'associationForeignKey' => 'net_lengths_id',
        )
    );
}

You should do something similar to your NetLength model as well.