How to get associated data of a model using custom join cakephp2 - cakephp

Question

I am using cakephp2 and trying to join two tables like this :
$employee=$this -> Employee ->find ('all',array(
'joins'=>array(
array('table' => 'employee_histories', 'alias' => 'eh', 'type' => 'LEFT', 'foreignKey' => false,
'conditions' => array('eh.emp_id= Employee.emp_id'))
),
'fields'=>'Employee.*,eh.*',
));
In EmployeeHistory model there is an association with table employee_designations like this :
public $belongsTo = array(
'EmployeeDesignation' => array(
'className' => 'EmployeeDesignation',
'foreignKey' => '',
'conditions' => 'EmployeeDesignation.designation_id=EmployeeHistory.designation_id',
'fields' => '',
'order' => ''
),
);
Now is it possible to get the EmployeeDesignation result in $employee array.

Answer 1

You can join the employee_designations table by adding another array to your joins array. Something like this:
$employee= $this->Employee->find('all', array(
'joins'=>array(
array(
'table' => 'employee_histories',
'alias' => 'eh',
'type' => 'LEFT',
'foreignKey' => false,
'conditions' => array(
'eh.emp_id= Employee.emp_id'
)
),
// array joining the employee designations table
array(
'table' => 'employee_designations',
'alias' => 'ed',
'type' => 'LEFT',
'conditions' => array(
'eh.designation_id = ed.designation_id'
)
)
),
'fields'=>'Employee.*, eh.*, ed.*', // include ed fields
));