wpdk-ajax.php

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<?php

if ( wpdk_is_ajax() ) {

  class WPDKAjax {

    public function __construct()
    {
      $this->registerActions();
    }

    public function registerActions()
    {
      $actions = $this->actions();
      foreach ( $actions as $method => $nopriv ) {
        add_action( 'wp_ajax_' . $method, array( $this, $method ) );
        if ( $nopriv ) {
          add_action( 'wp_ajax_nopriv_' . $method, array( $this, $method ) );
        }
      }
    }

    public static function add( $method, $callable, $nopriv = false )
    {
      add_action( 'wp_ajax_' . $method, $callable );
      if ( $nopriv ) {
        add_action( 'wp_ajax_nopriv_' . $method, $callable );
      }
    }

    protected function actions()
    {
      /* To override. */
      return array();
    }

  } // class WPDKAjax


  class WPDKAjaxResponse extends WPDKObject {

    public $__version = '1.0.3';

    public $error = '';

    public $message = '';

    public $data = '';

    public function __construct()
    {
    }

    public function json()
    {
      header( 'Cache-Control: no-cache, must-revalidate' );
      header( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' );
      header( 'Content-Type: application/json' );

      echo json_encode( $this );

      if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
        wp_die();
      }
      else {
        die();
      }
    }

  }


}