MultivalidatableBehabior.php

<?php
/**
 * MultivalidatableBehabior for CakePHP2
 *
 * @uses ModelBehavior
 * @author Dardo Sordi>
 * @link http://bakery.cakephp.org/articles/dardosordi/2008/07/29/multivalidatablebehavior-using-many-validation-rulesets-per-model
 */
class MultivalidatableBehavior extends ModelBehavior
{

    /**
     * Stores previous validation ruleset
     *
     * @var array
     * @access private
     */
    private $__old_rules = array();

    /**
     * Stores Model default validation ruleset
     *
     * @var array
     * @access private
     */
    private $__default_rules = array();

    public function setUp($Model, $config = array())
    {
        $this->__default_rules[$Model->name] = $Model->validate;
    }

    /**
     * Installs a new validation ruleset
     *
     * If $rules is an array, it will be set as current validation ruleset,
     * otherwise it will look into Model::validationSets[$rules] for the ruleset to install
     *
     * @param Model $model
     * @param array $rules
     * @return void
     * @access public
     */
    public function setValidation($Model, $rules = array())
    {
        if (is_array($rules)) {
            $this->_setValidation($Model, $rules);
        } elseif (isset($Model->validationSets[$rules])) {
            $this->setValidation($Model, $Model->validationSets[$rules]);
        }
    }

    /**
     * Restores previous validation ruleset
     *
     * @param Model $model
     * @return void
     * @access public
     */
    public function restoreValidation($Model)
    {
        $Model->validate = $this->__old_rules[$Model->name];
    }

    /**
     * Restores default validation ruleset
     *
     * @param Model $model
     * @return void
     * @access public
     */
    public function restoreDefaultValidation($Model)
    {
       $Model->validate = $this->__default_rules[$Model->name];
    }

    /**
     * Sets a new validation ruleset, saving the previous
     *
     * @param Model $model
     * @param array $rules
     * @return void
     * @access protected
     */
    protected function _setValidation($Model, $rules)
    {
        $this->__old_rules[$Model->name] = $Model->validate;
        $Model->validate = $rules;
    }
}

MultivalidatableBehaviorTest.php

<?php
App::import('Behavior', 'Multivalidatable');

class MultivalidatablePost extends CakeTestModel
{

    public $useTable = false;

    public $actsAs = array(
        'Multivalidatable',
    );

    public $validate = array(
        'mail' => array(
            'require' => array(
                'rule' => array(
                    'notempty',
                ),
                'required' => true,
                'last' => true,
            ),
            'email' => array(
                'rule' => array(
                    'email',
                ),
            ),
        ),
        'password' => array(
            'require' => array(
                'rule' => array(
                    'notempty',
                ),
                'required' => true,
                'last' => true,
                'on' => 'create',
            ),
        ),
        'name' => array(
            'require' => array(
                'rule' => array(
                    'notempty',
                ),
                'required' => true,
                'last' => true,
            ),
        ),
    );

    public $validationSets = array(
        'foo' => array(
            'name' => array(
                'require' => array(
                    'rule' => array(
                        'notempty',
                    ),
                    'required' => true,
                    'last' => true,
                ),
            ),
        ),
        'bar' => array(
            'status' => array(
                'boolean' => array(
                    'rule' => array(
                        'boolean',
                    ),
                    'required' => true,
                    'last' => true,
                ),
            ),
            'name' => array(
                'require' => array(
                    'rule' => array(
                        'notempty',
                    ),
                    'required' => true,
                    'last' => true,
                ),
            ),
        ),
    );
}

/**
 * Multivalidatable Test case
 */
class MultivalidatableBehaviorTest extends CakeTestCase
{

    public function setUp()
    {
        $this->Model = new MultivalidatablePost();
    }

    public function tearDown()
    {
        unset($this->Model);
        ClassRegistry::flush();
    }

    public function testルールを切り替えた後、もとに戻せること事()
    {
        $this->_checkDefaultRule();

        $this->Model->setValidation('foo');
        $this->_checkFooRule();

        $this->Model->restoreValidation();
        $this->_checkDefaultRule();
    }

    public function testルールを複数回切り替えた後、もとに戻せること事()
    {
        $this->_checkDefaultRule();

        $this->Model->setValidation('foo');
        $this->_checkFooRule();

        $this->Model->setValidation('bar');
        $rules = $this->Model->validate;
        $this->assertEqual(count($rules), 2);
        $this->assertTrue(isset($rules['name']));
        $this->assertTrue(isset($rules['status']));

        $this->Model->restoreValidation();
        $this->_checkFooRule();

        $this->Model->restoreDefaultValidation();
        $this->_checkDefaultRule();
    }

    protected function _checkFooRule()
    {
        $rules = $this->Model->validate;
        $this->assertEqual(count($rules), 1);
        $this->assertTrue(isset($rules['name']));
    }

    protected function _checkDefaultRule()
    {
        $rules = $this->Model->validate;
        $this->assertEqual(count($rules), 3);
        $this->assertTrue(isset($rules['mail']));
        $this->assertTrue(isset($rules['password']));
        $this->assertTrue(isset($rules['name']));
    }