Paginating results from model function - cakephp

Question

For CakePhp 2.5
I have the following search function in my Controller.
public function search($query = null, $lim = null)
{
$tokens = explode(" ", $query);
$this->Paginator->settings = array(
'conditions' => array(
'Customer.site_id LIKE' => '%' . $this->viewVars['shopId'],
'CONCAT(Customer.first_name," ",Customer.last_name," ",Customer.organisation) LIKE' => '%' . implode(' ', $tokens) . '%'
),
'limit' => $lim
);
$this->set('customers', $this->Paginator->paginate());
}
This works fine, and gets the results i want.
However, its been suggested to me that I should put these search functions in my model. I can easily do this, and have done so similar as follows in my model:
public function getActiveTasks($id){
return $this->Task->find('all', array(
'conditions' => array(
'Task.customer_id' => $id,
'Task.status' => 0
),
'order' => array('Task.due_date ASC'),
'recursive' => -1,
));
}
The issue I'm having is that I cannot (or don't know how to) use Paginator with custom searches. Is there a way to paginate results from custom functions?
ie, can I do the following:
public function CustomModelSearch($query = null, $lim = null)
{
return $this->Task->find('all', array(
'conditions' => array(
'Customer.site_id LIKE' => '%' . $this->viewVars['shopId'],
'CONCAT(Customer.first_name," ",Customer.last_name," ",Customer.organisation) LIKE' => '%' . implode(' ', $tokens) . '%'
),
'limit' => $lim
));
}
and then in the controller call
$results = $this->Model->CustomModelSearch($query, $lim);
$this->set('results',$this->Paginate($results));
I cannot find a way to pass results into the paginator to render paged results to the view, unless I use it via the controller as per the first piece of code, which i've been told isn't good MVC principles.

Answer 1

To create custom pagination you have two options:
Create a Custom Query Pagination with a paginate and paginateCount funtions
// paginate and paginateCount implemented on a behavior.
public function paginate(Model $model, $conditions, $fields, $order, $limit,
$page = 1, $recursive = null, $extra = array()) {
// method content
}
public function paginateCount(Model $model, $conditions = null, $recursive = 0,
$extra = array()) {
// method body
}
or create a custom find and set Paginator to use that find.

Answer 2

good to understand but the truth should tell me that bug hits you in what you're doing.
The function in the model of "Task" you should not put $this->task->findjust$this->find that if you are in the model not need specify which model you are using, ou only need to do this in the controller.
model/Task.php:
public function CustomModelSearch($query = null, $lim = null)
{
return $this->find('all', array(
'conditions' => array(
'Customer.site_id LIKE' => '%' . $this->viewVars['shopId'],
'CONCAT(Customer.first_name," ",Customer.last_name," ",Customer.organisation) LIKE' => '%' . implode(' ', $tokens) . '%'
),
'limit' => $lim
));
}