Rails – ModelのscopeとControllerのメソッドチェーンでAND検索をする例 - Qiita

class User < ApplicationRecord scope :filter_name, ->(name) do return self if name.blank? where(name: name) end scope :filter_age, ->(age) do return self if age.blank? where(age: age) end end class UserController < ApplicationController def search users = User .all .filter_name(user_params[:name]) .filter_age(user_params[:age]) render json: { users: users } end private def user_params params.permi