/**
  * 
  * create a slide from input data
  */
 public function createSlideFromData($data, $returnSlideID = false)
 {
     $sliderID = UniteFunctionsRev::getVal($data, "sliderid");
     $obj = UniteFunctionsRev::getVal($data, "obj");
     UniteFunctionsRev::validateNotEmpty($sliderID, "Slider ID");
     $this->initByID($sliderID);
     if (is_array($obj)) {
         //multiple
         foreach ($obj as $item) {
             $slide = new RevSlide();
             $slideID = $slide->createSlide($sliderID, $item);
         }
         return count($obj);
     } else {
         //signle
         $urlImage = $obj;
         $slide = new RevSlide();
         $slideID = $slide->createSlide($sliderID, $urlImage);
         if ($returnSlideID == true) {
             return $slideID;
         } else {
             return 1;
         }
         //num slides -1 slide created
     }
 }
 /**
  * 
  * create a slide from input data
  */
 public function createSlideFromData($data)
 {
     $sliderID = UniteFunctionsRev::getVal($data, "sliderid");
     $urlImage = UniteFunctionsRev::getVal($data, "url_image");
     UniteFunctionsRev::validateNotEmpty($sliderID, "Slider ID");
     UniteFunctionsRev::validateNotEmpty($urlImage, "image url");
     $this->initByID($sliderID);
     $slide = new RevSlide();
     $slideID = $slide->createSlide($sliderID, $urlImage);
     return $slideID;
 }