set value in controller to associated model befor save in cakephp - cakephp

Question

I have 'seller_businessestable andseller_business_categories` table. I am using a single form to save values to sellers and seller_businesses.
The form is like
<?= $this->Form->create() ?>
<?= $this->Form->input('company_name') ?>
<?= $this->Form->input('logo', ['type' => 'file']) ?>
<?= $this->Form->input('seller_business_categories.category_id') ?>
<?= $this->Form->button('Submit', ['type' => 'submit']) ?>
<?= $this->Form->end() ?>
The seller_business_categories has a column seller_id and I have to save the logged in user id in it.
I know to save value to table seller_businesses in controller like
$seller_business = $this->SellerBusinesses->newEntity();
$seller_business->seller_id = $this->Auth->user('id');
$this->SellerBusinesses->patchEntity($seller_business, $this->request->data, [
'associated' => ['SellerBusinessCategories']
]);
But how to save default value to associated model SellerBusinessCategories within controller ?

Answer 1

You need make relationship
SellerBusinessCategorie.php MODEL
public function initialize(array $config)
{
parent::initialize($config);
$this->table('seller_business_categories');
$this->hasMany('seller_businesses', [
'foreignKey' => 'seller_id'
]);
}
SellerBusinesses.php MODEL
public function initialize(array $config)
{
parent::initialize($config);
$this->belongsTo('seller_business_categories', [
'foreignKey' => 'category_id',
'joinType' => 'INNER'
]);
}
Controller
$seller_business = $this->SellerBusinesses->newEntity();
$seller_business->seller_id = $this->Auth->user('id');
$this->SellerBusinesses->patchEntity($seller_business, $this->request->data]);
NOW TRY..it works