Question

Hello

I created the database relation above, as you see one person (staff) can be member of many groups. Every group has a groupleader. How do I manage that relation correctly ?

I’d be thankfull for every hint

Here is what I tried before:

Staff Model:

    /**
 * belongsTo associations
 *
 * @var array
 */
    public $belongsTo = array(
        'Staffgroup' => array(
            'className' => 'Staffgroup',
            'foreignKey' => 'Staffgroup_groupLeader',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        )
    );

/**
 * hasAndBelongsToMany associations
 *
 * @var array
 */
    public $hasAndBelongsToMany = array(
        'Staffgroup' => array(
            'className' => 'Staffgroup',
            'joinTable' => 'staff_staffgroups',
            'foreignKey' => 'staff_id',
            'associationForeignKey' => 'staffgroup_id',
            'unique' => 'keepExisting',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
            'deleteQuery' => '',
            'insertQuery' => ''
        )
    );

}

Model Staffgroup

/**
 * hasOne associations
 *
 * @var array
 */
    public $belongsTo = array(
        'Staff' => array(
            'className' => 'Staff',
            'foreignKey' => 'groupLeader',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        )
    );

/**
 * hasAndBelongsToMany associations
 *
 * @var array
 */
    public $hasAndBelongsToMany = array(
        'Staff' => array(
            'className' => 'Staff',
            'joinTable' => 'staff_staffgroups',
            'foreignKey' => 'staffgroup_id',
            'associationForeignKey' => 'staff_id',
            'unique' => 'keepExisting',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
            'deleteQuery' => '',
            'insertQuery' => ''
        )
    );

Answer 1

There is a hasMany association missing in your Staff model to represent the “group leader” relationship between Staff and StaffGroup.