gistfile1.txt

function(response, status, xhr) {
    
              if (checkResponse(xhr) === 'json') {
    
                  // call error handler
                  if (response.success !== true) {
                      that.get('errorHandler').check(response);
                  }   
    
                  // check whether there is a message
                  if (response.message !== null) {
    
                      // if there is a message show it.
                      that.get('notify').show({
                          type: response.success,
                          content: response.message 
                      }); 
                  }   
    
                  // if there is a data
                  if (response.data.length > 0) {
                      return data;
                  }   
              }   
    
              // when response is a html
              if (checkResponse(xhr) === 'html') {
                  return response;
              }   

            }