How can I Remove CodeClimate similar code from strong params?

Question

I'm analyzing my code in CodeClimate.com and I have a similar code problem always in the same lines:

params.permit(some parameters here)

CodeClimate is detecting this code as similar based only in the mass of the code, not in the content, so my quality is not improving due to this.

Is there a way to tell CodeClimate that this code is not repeated or even similar, as long as it's a parameters hash?

Answer 1

Why not to refactor such issues? Say, you have code:

class PostsController < ApplicationController
  # ...

  def resource_params
    params.require(:post).permit(:title, :body)
  end
end

class CommentsController < ApplicationController
  # ...

  def resource_params
    params.require(:comment).permit(:name, :email, :body)
  end
end

You can move repeating code into superclass, leaving in subclasses only differences:

class ApplicationController < ActionControllerBase
  # ...

  def resource_params
    params.require(resource_name).permit(*permitted_resource_params)
  end
end

class PostsController < ApplicationController
  # ...

  def resource_name
    :post
  end

  def permitted_resource_params
    [:title, :body]
  end
end

class CommentsController < ApplicationController
  # ...

  def resource_name
    :comment
  end

  def permitted_resource_params
    [:name, :email, :body]
  end
end

And, of course, if in some controller you have different rules of params permission — you could redefine resource_params method in it.