RailsConditionalParams

This gem patches ActionController::Parameters to support conditional parameters—parameters that are permitted only if some condition is true. Basically, it ensures that any hash key passed to permit() with true as its value is made into a permitted key, while keys passed with false or nil are ignored.

It is compatible with Rails 4.2 and later, including Rails 5.

Add this line to your application's Gemfile:

gem 'rails_conditional_params'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rails_conditional_params

params.permit(:title, :body, published: admin?)
	# published will only be permitted if admin? returns true

1. Fork it ( https://github.com/brentdax/rails_conditional_params/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request