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Ruby

Rails 4. Update User when creating different model.

Just to show you how I got to this point:

Every user has many profiles. Every profile has type recognized by single table inheritance(amateur, professional, and some other). I need to store current_profile somewhere and somehow.

Professionals Controller

class ProfessionalsController < ApplicationController
def create
  @professional = Professional.new(professional_params)
  @user = current_user
  @professional.user_id = current_user.id
  @update_current_profile = User.update(@user, {:current_profile => @professional.id})
  if @professional.save

  else

  end
end

private

  def professional_params
    params.require(:professional).permit(:id, :username, :user_id)
  end

end

This is meant to update current_profile of user to the newly created professional profile and do some staff then.

When the profile is created current_profile is set(updated) to NULL. If I change :

@update_current_profile = User.update(@user, {:current_profile => @professional.id})

to something different, for example:

@update_current_profile = User.update(@user, {:current_profile => @professional.user_id})

or

@update_current_profile = User.update(@user, {:current_profile => 3})

it stores data in User.current_profile perfectly.

I was trying @professional without an .id too. Why is this doing so?

Another question is. Is this the best way to store current_profile of user? Would you recommend me any better/safer/more efficient solution?

Thanks all of you guys.