Feature: Strong Parameters(like Rails 4)

In most cases we cannot use mass-assignment without any protection,
so such protection should be added

The issue mentions adding strong parameters protection similar to Rails 4 to the Compound MVC framework. Start by examining the framework's model or controller layer to understand current mass-assignment handling. Look for existing validation or parameter filtering mechanisms. Research how Rails 4 strong parameters work to understand the required feature scope. The work involves designing and implementing a new security feature across the framework.

索引モデルが issue の本文から書いたものです。