cakephp / cakephp

     * @param bool $newRecord whether the data to be validated is new or to be updated.

     * @return bool

     */

    public function isEmptyAllowed($field, $newRecord)

    {

        $providers = $this->_providers;

        $data = [];

        $context = compact('data', 'newRecord', 'field', 'providers');

        return $this->_canBeEmpty($this->field($field), $context);

    }

    /**

     * Returns whether or not a field can be left out for a new or already existing

     * @param bool $newRecord Whether the data to be validated is new or to be updated.

     * @return bool

     */

    public function isPresenceRequired($field, $newRecord)

    {

        $providers = $this->_providers;

        $data = [];

        $context = compact('data', 'newRecord', 'field', 'providers');

        return !$this->_checkPresence($this->field($field), $context);

    }

    /**

     * Returns whether or not a field matches against a regular expression.