how to use association with TableRegistry in cakephp 3 - php

Question

As you can see in 1st Business\Model\Entity\Business Object there is category association present, when called in BusinessController,
But It's missing, when called in CategoriesController using TableRegistry. why that ? any idea how to get this fixed ?
I called called below in BusinessesController
$this->autoRender = false;
$this->paginate = [
'contain' => ['Cities', 'Categories' ]
];
foreach( $this->paginate( $this->Businesses ) as $business ) {
pr( $business );
}
I got this results
Business\Model\Entity\Business Object
(
[id] => 1
[city_id] => 414
[postal_id] => 780299
[slug] => coatings-2000-lloydminster-ab-ca-1
[business_name] => Coatings 2000
[street_address] => 2B Production Ave
[address_locality] => Lloydminster
[address_region] => AB
[postal_code] => T9V 0Y4
[last_modified] => Cake\I18n\Time Object
(
[time] => 2015-03-12T00:00:00+0530
[timezone] => Asia/Calcutta
[fixedNowTime] =>
)
[status] => 1
[categories] => Array
(
[0] => Business\Model\Entity\Category Object
(
[id] => 2276
[parent_id] => 2212
[category_slug] => protective-coatings
[category_name] => Protective Coatings
[lft] => 4449
[rght] => 4450
[level] => 2
[_joinData] => Cake\ORM\Entity Object
(
[category_id] => 2276
[business_id] => 1
[[new]] =>
[[accessible]] => Array
(
[*] => 1
)
[[dirty]] => Array
(
)
[[original]] => Array
(
)
[[virtual]] => Array
(
)
[[errors]] => Array
(
)
[[repository]] => BusinessesCategories
)
[[new]] =>
[[accessible]] => Array
(
[*] => 1
)
[[dirty]] => Array
(
)
[[original]] => Array
(
)
[[virtual]] => Array
(
)
[[errors]] => Array
(
)
[[repository]] => Business.Categories
)
)
[city] => Business\Model\Entity\City Object
(
[id] => 414
[city_slug] => lloydminster
[city_name] => Lloydminster
[[new]] =>
[[accessible]] => Array
(
[*] => 1
)
[[dirty]] => Array
(
)
[[original]] => Array
(
)
[[virtual]] => Array
(
)
[[errors]] => Array
(
)
[[repository]] => Business.Cities
)
[[new]] =>
[[accessible]] => Array
(
[*] => 1
)
[[dirty]] => Array
(
)
[[original]] => Array
(
)
[[virtual]] => Array
(
)
[[errors]] => Array
(
)
[[repository]] => Business.Businesses
)
when i called this in categories controller, it shows missing category associations
$this->autoRender = false;
$this->paginate = [
'contain' => ['Cities', 'Categories' ]
];
$businessTable = \Cake\ORM\TableRegistry::get( 'Business.Businesses' );
foreach( $this->paginate( $businessTable ) as $business ) {
pr( $business );
}
I got this results with missing categories associations
Business\Model\Entity\Business Object
(
[id] => 1
[city_id] => 414
[postal_id] => 780299
[slug] => coatings-2000-lloydminster-ab-ca-1
[business_name] => Coatings 2000
[street_address] => 2B Production Ave
[address_locality] => Lloydminster
[address_region] => AB
[postal_code] => T9V 0Y4
[last_modified] => Cake\I18n\Time Object
(
[time] => 2015-03-12T00:00:00+0530
[timezone] => Asia/Calcutta
[fixedNowTime] =>
)
[status] => 1
[categories] => Array
(
)
[city] => Business\Model\Entity\City Object
(
[id] => 1
[city_slug] => albany
[city_name] => Albany
[[new]] =>
[[accessible]] => Array
(
[*] => 1
)
[[dirty]] => Array
(
)
[[original]] => Array
(
)
[[virtual]] => Array
(
)
[[errors]] => Array
(
)
[[repository]] => Business.Cities
)
[[new]] =>
[[accessible]] => Array
(
[*] => 1
)
[[dirty]] => Array
(
)
[[original]] => Array
(
)
[[virtual]] => Array
(
)
[[errors]] => Array
(
)
[[repository]] => Business.Businesses
)

Answer 1

I guess that when you are in categories controller and you define contain for this, you are refering to the Categories model, not the Business one so that's why paginate is not taking the contain.
You could try this:
$this->paginate['Businesses'] = [
'contain' => ['Cities', 'Categories' ]
];