About CakePHP 3 BelongsToMany issue - cakephp-3.0

Question

I have an issue with the following case :
Users Table
id, profile_id, name, created, modified
Profiles Table
id, first_name, last_name, gender
Businesses table
id, name, created, modified
I have a relation table many to many to link profiles to businesses : businesses_profiles
id, business_id, profile_id, created, modified
When i try to create a new business, I would like to link directly logged in user profile id to the business I'm creating.
in my profileTable, I've added in initialize() :
$this->belongsToMany('Businesses', [
'alias' => 'Businesses',
'foreignKey' => 'profile_id',
'targetForeignKey' => 'business_id',
'joinTable' => 'businesses_profiles'
]);
in my businessesTable, I've also put in initialize() method:
$this->belongsToMany('Profiles', [
'alias' => 'Profiles',
'foreignKey' => 'business_id',
'targetForeignKey' => 'profile_id',
'joinTable' => 'businesses_profiles'
]);
In each entities Business & Profile, I put respectively in right context :
protected $_accessible = [
'*' => true,
'id' => false,
'businesses' => true,
'_joinData' => true
];
and :
protected $_accessible = [
'name' => true,
'slug' => true,
'active' => true,
'hash' => true,
'data' => true,
'approved' => true,
'created' => true,
'modified' => true,
'profiles' => true,
'_joinData' => true
];
Nothings work about saving in my businesses_profiles table.
Thanks in advance for your help,
Best,
Laurent.

Answer 1

Thanks a lot for your help. I've found the solution by using the link() method provided by CakePHP.
I'll share my add function here, if it can help others :
public function add()
{
$business = $this->Businesses->newEntity();
if ($this->request->is('post')) {
$business = $this->Businesses->patchEntity($business, $this->request->getData());
$business->set('hash');
$business->set('active', 0);
$business->set('slug');
$profile = TableRegistry::getTableLocator()->get('Profiles')->get($this->_currentUser->profile_id);
if ($this->Businesses->save($business)) {
**$this->Businesses->Profiles->link($business, [$profile]);**
$this->Flash->success(__('The business has been saved.'));
return $this->redirect(['action' => 'index']);
}
else
{
debug($business->getErrors()); // debug
$this->Flash->error(__('The business could not be saved. Please, try again.'));
}
}
$this->set(compact('business'));
}