Plain UsersController

class UsersController < ApplicationController
    before_action :require_target_user, only: [:show, :update, :destroy]

    respond_to :json

    def index
        @users = User.all
    end

    def show
    end

    def create
        @user = User.create(user_params)

        render :show, status: status_code_for_model(@user)
    end

    def update
        @user.update_attributes(user_params)

        render :show, status: status_code_for_model(@user)
    end

    def destroy
        @user.destroy!
        render nothing: true
    end

    private

    def require_target_user
        @user ||= User.find(params[:id])
    end

    def user_params
        params.permit(:nick, :password, :password_confirmation)
    end
end