original_string: protected function validateCollectionCollectionItem()
      {
          $field = 'collection_id';
  
          if ($this->isExcluded($field)) {
              return null;
          }
  
          $collection_id = $this->getSubmitted($field);
  
          if ($this->isUpdating() && !isset($collection_id)) {
              return null;
          }
  
          $label = $this->translation->text('Collection');
  
          if (empty($collection_id)) {
              $this->setErrorRequired($field, $label);
              return false;
          }
  
          if (!is_numeric($collection_id)) {
              $this->setErrorNumeric($field, $label);
              return false;
          }
  
          $collection = $this->collection->get($collection_id);
  
          if (empty($collection)) {
              $this->setErrorUnavailable($field, $label);
              return false;
          }
  
          $this->setSubmitted('collection', $collection);
          return true;
      }
code: protected function validateCollectionCollectionItem()
      {
          $field = 'collection_id';
  
          if ($this->isExcluded($field)) {
              return null;
          }
  
          $collection_id = $this->getSubmitted($field);
  
          if ($this->isUpdating() && !isset($collection_id)) {
              return null;
          }
  
          $label = $this->translation->text('Collection');
  
          if (empty($collection_id)) {
              $this->setErrorRequired($field, $label);
              return false;
          }
  
          if (!is_numeric($collection_id)) {
              $this->setErrorNumeric($field, $label);
              return false;
          }
  
          $collection = $this->collection->get($collection_id);
  
          if (empty($collection)) {
              $this->setErrorUnavailable($field, $label);
              return false;
          }
  
          $this->setSubmitted('collection', $collection);
          return true;
      }
code_tokens: protected function validateCollectionCollectionItem ( ) { $ field = 'collection_id' ; if ( $ this -> isExcluded ( $ field ) ) { return null ; } $ collection_id = $ this -> getSubmitted ( $ field ) ; if ( $ this -> isUpdating ( ) && ! isset ( $ collection_id ) ) { return null ; } $ label = $ this -> translation -> text ( 'Collection' ) ; if ( empty ( $ collection_id ) ) { $ this -> setErrorRequired ( $ field , $ label ) ; return false ; } if ( ! is_numeric ( $ collection_id ) ) { $ this -> setErrorNumeric ( $ field , $ label ) ; return false ; } $ collection = $ this -> collection -> get ( $ collection_id ) ; if ( empty ( $ collection ) ) { $ this -> setErrorUnavailable ( $ field , $ label ) ; return false ; } $ this -> setSubmitted ( 'collection' , $ collection ) ; return true ; }
docstring: Validates the collection data
  @return boolean
docstring_tokens: Validates the collection data