Paginate i order

<?php
class Category extends AppModel {
    var $name = 'Category';
    var $displayField = 'name';
    //The Associations below have been created with all possible keys, those that are not needed can be removed

        function getDataByCategory($categoryName) {
            return $this->find('all', array('conditions' => array('Category.name' => $categoryName)));
        }

    var $hasMany = array(
        'Advertisment' => array(
            'className' => 'Advertisment',
            'foreignKey' => 'category_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        )
    );

}
?>

<?php
class Advertisment extends AppModel {
    var $name = 'Advertisment';
    var $displayField = 'title';
    //The Associations below have been created with all possible keys, those that are not needed can be removed

        function getAdvertisments() {
            return $this->find('all');
        }

    var $belongsTo = array(
        'User' => array(
            'className' => 'User',
            'foreignKey' => 'user_id',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        ),
        'Category' => array(
            'className' => 'Category',
            'foreignKey' => 'category_id',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        )
    );
}
?>