Cakephp 3 Search plugin get related fields - cakephp

Question

I'm using the Easy model searching plugin from FriendsOfCake and use it to search into my table data. It's working very good but now I wan't to get related items by a foreign key that matched with the foreign key of the founded item.
On this moment my query is returning only the row by the content I search for, but how can I define that I also want the other rows with the same forKey?
My table looks like:
ID | forKey | name | content
------ | ------ | ------ | ------
1 | 1 | value1 | content1
2 | 1 | value2 | content2
3 | 2 | value3 | content3
Search function inside Controller:
$query = $this->Content
->find('search', [
'search' => $this->request->getQuery()
]);
Search setup inside Controller Table:
public function initialize(array $config) {
parent::initialize($config);
// Search
$this->addBehavior('Search.Search');
// Setup search filter using search manager
$this->searchManager()
// ->value('id')
->add('q', 'Search.Like', [
'before' => true,
'after' => true,
'fieldMode' => 'OR',
'comparison' => 'LIKE',
'wildcardAny' => '*',
'wildcardOne' => '?',
'field' => ['content'],
])
->add('foo', 'Search.Callback', [
'callback' => function ($query, $args, $filter) {
// Modify $query as required
}]);
}

Answer 1

I'm not sure if you're trying to find things that match your criteria in more than one field or if you're trying to find it in a related table.
For searching more fields from the calling table just add them comma separated:
'field' => ['content', 'id', 'name'],
If you are looking to bind the search to related items in other tables then include those in the controller search as contain:
$query = $this->Content
->find('search', [
'search' => $this->request->getQuery()
])
->contain(['OtherRelatedTable']);
Then add those to the model call:
'field' => ['content', 'id', 'name', 'OtherRelatedTable.id'],
Does that make sense?

Answer 2

If you are trying to filter using an associated model, use either the callback option or a custom finder:
$searchManager->add('related_table_field', 'Search.Callback', [
'callback' => function ($query, $args, $filter) {
$related_table_field = $args['related_table_field'];
$query->matching('RelatedTable', function ($q) use($related_table_field) {
return $q->where(['RelatedTable.related_table_field LIKE' => '%'.$related_table_field.'%']);
});
}
]);

Answer 3

$this->add('q', 'Search.Like', [
'before' => true,
'after' => true,
'fieldMode' => 'OR',
'comparison' => 'LIKE',
'wildcardAny' => '*',
'wildcardOne' => '?',
'field' => ['firstname', 'username']
])
->add('table_name.address', 'Search.Callback', [
'callback' => function ($query, $args, $filter) {
$query->matching('TableModel', function ($q) use($args) {
return $q->where(['TableModel.address' => $args['table_name.address']]);
});
return $query;
}
]);