“NOT IN” Kohana ORM
-
14-07-2021 - |
Frage
i've got the following models:
class Model_User extends ORM {
protected $_primary_key = 'name';
protected $_has_many = array(
'repositories' => array(
'model' => 'repository',
'through' => 'repository_user',
),
);
}
class Model_Repository extends ORM {
protected $_primary_key = 'name';
protected $_has_many = array(
'users' => array(
'model' => 'user',
'through' => 'repository_user',
),
);
}
I use the following code to get all users which are not connected to a repository:
$repository = ORM::factory( 'repository', $this->request->param('svn_name') );
$users = ORM::factory('user')->where( 'name', 'NOT IN', $repository->users->find_all()->as_array() )
->find_all();
Unfortunately i get the following error message if there is no user connected to a specific repository:
Database_Exception [ 1064 ]: You have an error in your SQL syntax; check the manual
that corresponds to your MySQL server version for the right syntax to use near
')' at line 1 [ SELECT `user`.* FROM `users` AS `user` WHERE `name` NOT IN () ]
How can i solve this problem without using if's and only using Kohana-Methods?
Lösung
The problem is that $repository->users->find_all()->as_array()
returns an empty array so your SQL query is not valid (NOT IN ()
-> invalid syntax).
You should check if array is empty before applying where condition:
$repository = ORM::factory( 'repository', $this->request->param('svn_name') );
$names = $repository->users->find_all()->as_array();
$users = ORM::factory('user');
// Check against empty names
if (!empty($names))
{
$users->where( 'name', 'NOT IN', $names );
}
// Execute the query
$users->find_all();
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