ruby on rails: undefined method `_path'

Question

I'm getting the error from line #7 of my views when I'm trying to create a new room:

undefined method `rooms_path' for #<#<Class:0x007fb46b5db2a0>:0x007fb46b5d9ec8>

I'm a little confused about why am I getting this error. I have built a relationship between Room and Facility that each Facility has many Rooms. The Facility part works bug free, I've been able to create/edit/show facilities.

Views (views/rooms/new.html.erb)

 <div class="panel panel-default"> <div class="panel-heading"> Create your beautiful room </div> <div class="panel-body"> <div class="container"> <%= form_for @room do |f| %> <div class="form-group"> <label>Name</label> <%=f.text_field :room_name, placeholder: "What is the name of the room?", class: "form-control", required: true%> </div> <div><%= f.submit "Create This Room", class: "btn btn-normal" %></div> <%end%> </div> </div> </div> 

My Room model (models/room.rb):

 class Room < ApplicationRecord belongs_to :facility validates :room_type, presence: true validates :room_name, presence: true end 

My Facility model (models/facility.rb):

 class Facility < ApplicationRecord belongs_to :user has_many :photos has_many :rooms validates :facility_name, presence: true validates :address, presence: true validates :license, presence: true validates :phone, presence: true def cover_photo(size) if self.photos.length > 0 self.photos[0].image.url(size) else "blank.jpg" end end end 

My Rooms Controller(controllers/rooms_controller.rb)

 class RoomsController < ApplicationController before_action :set_room, except: [:index, :new, :create] def index @facility = Facility.find(params[:facility_id]) @rooms = @facility.rooms end def new @facility = Facility.find(params[:facility_id]) @room = @facility.rooms.build end end 

Routes (routes.rb)

 Rails.application.routes.draw do devise_for :users, path: '', path_names: {sign_in: 'login', sign_out: 'logout', edit: 'profile', sign_up: 'registration'}, controllers: {omniauth_callbacks: 'omniauth_callbacks', registrations: 'registrations'} resources :users, only: [:show] resources :facilities, except: [:edit] do member do get 'listing' get 'pricing' get 'features' get 'services' get 'types_care' get 'photo_upload' get 'room_upload' end resources :rooms, except: [:edit] do member do get 'listing' get 'pricing' get 'photo_upload' end end resources :photos, only: [:create, :destroy] end end 

Been stuck on this for a couple of days and would really appreciate the help :) Thanks so much in advance!

Answer 1

form_for generate url based on class of @room , it doesn't include outer resource. Thus, you have to tell Rails to do that explicitly using below statement:

<%= form_for [@room.facility, @room] do |f| %>

Answer 2

Choose any of the following for form_for instead of <%= form_for @room do |f| %> <%= form_for @room do |f| %> as your routes are nested

<%= form_for @room, url: [@room.facility, @room] do |f| %>

<%= form_for @room, url: [:facility, @room] do |f| %>

<%= form_for [@room.facility, @room] do |f| %>

<%= form_for [:facility, @room] do |f| %>

Here you can get more detail about form_for helper