original_string: protected function validateEntityIdCollectionItem()
      {
          $field = 'entity_id';
  
          if ($this->isExcluded($field)) {
              return null;
          }
  
          $value = $this->getSubmitted($field);
  
          if ($this->isUpdating() && !isset($value)) {
              return null;
          }
  
          $title = $this->getSubmitted('title');
  
          if (is_numeric($title)) {
              $value = $title;
          }
  
          $label = $this->translation->text('Entity');
  
          if (empty($value) || !is_numeric($value)) {
              $this->setErrorInvalid($field, $label);
              return false;
          }
  
          $update = $this->getUpdating();
  
          if (isset($update['collection_item_id']) && $update[$field] == $value) {
              return null;
          }
  
          $conditions = array(
              'type' => $this->getSubmitted('collection.type'),
              'collection_id' => $this->getSubmitted('collection.collection_id')
          );
  
          $existing = $this->collection_item->getItems($conditions);
  
          if (isset($existing[$value])) {
              $this->setErrorExists($field, $label);
              return false;
          }
  
          $this->setSubmitted($field, $value);
          return true;
      }
code: protected function validateEntityIdCollectionItem()
      {
          $field = 'entity_id';
  
          if ($this->isExcluded($field)) {
              return null;
          }
  
          $value = $this->getSubmitted($field);
  
          if ($this->isUpdating() && !isset($value)) {
              return null;
          }
  
          $title = $this->getSubmitted('title');
  
          if (is_numeric($title)) {
              $value = $title;
          }
  
          $label = $this->translation->text('Entity');
  
          if (empty($value) || !is_numeric($value)) {
              $this->setErrorInvalid($field, $label);
              return false;
          }
  
          $update = $this->getUpdating();
  
          if (isset($update['collection_item_id']) && $update[$field] == $value) {
              return null;
          }
  
          $conditions = array(
              'type' => $this->getSubmitted('collection.type'),
              'collection_id' => $this->getSubmitted('collection.collection_id')
          );
  
          $existing = $this->collection_item->getItems($conditions);
  
          if (isset($existing[$value])) {
              $this->setErrorExists($field, $label);
              return false;
          }
  
          $this->setSubmitted($field, $value);
          return true;
      }
code_tokens: protected function validateEntityIdCollectionItem ( ) { $ field = 'entity_id' ; if ( $ this -> isExcluded ( $ field ) ) { return null ; } $ value = $ this -> getSubmitted ( $ field ) ; if ( $ this -> isUpdating ( ) && ! isset ( $ value ) ) { return null ; } $ title = $ this -> getSubmitted ( 'title' ) ; if ( is_numeric ( $ title ) ) { $ value = $ title ; } $ label = $ this -> translation -> text ( 'Entity' ) ; if ( empty ( $ value ) || ! is_numeric ( $ value ) ) { $ this -> setErrorInvalid ( $ field , $ label ) ; return false ; } $ update = $ this -> getUpdating ( ) ; if ( isset ( $ update [ 'collection_item_id' ] ) && $ update [ $ field ] == $ value ) { return null ; } $ conditions = array ( 'type' => $ this -> getSubmitted ( 'collection.type' ) , 'collection_id' => $ this -> getSubmitted ( 'collection.collection_id' ) ) ; $ existing = $ this -> collection_item -> getItems ( $ conditions ) ; if ( isset ( $ existing [ $ value ] ) ) { $ this -> setErrorExists ( $ field , $ label ) ; return false ; } $ this -> setSubmitted ( $ field , $ value ) ; return true ; }
docstring: Validates submitted collection item entity ID
  @return boolean|null
docstring_tokens: Validates submitted collection item entity ID