Rails routes option "as", can't edit resource - ruby-on-rails

Question

In my application I have model "Regulation", form for creating regulations looks like this:
- if %W(edit update).include? action_name
= content_for :heading, t('partners.regulations.edit')
- else
= content_for :heading, t('partners.regulations.new')
.row
.col-md-6
= horizontal_simple_form_for [:partners, #regulation] do |f|
= f.error_notification
%ul.nav.nav-pills
%li
= link_to image_tag("flag_pl.png"), '#PL', class: 'regulation_pl'
%li
= link_to image_tag("flag_en.png"), '#EN', class: 'regulation_en'
.polish_regulation
%h1.page-header
= t('partners.regulations.polish')
= f.input :content_pl, :as => :ckeditor, :input_html => { :ckeditor => {:toolbar => 'Pure', width: 750} }, error: false
.english_regulation
%h1.page-header
= t('partners.regulations.english')
= f.input :content_en, :as => :ckeditor, :input_html => { :ckeditor => {:toolbar => 'Basic', width: 750} }, error: false
- if %W(edit update).include? action_name
= f.submit t('actions.save_changes'), class: "btn btn-lg btn-default"
- else
= f.submit t('partners.regulations.save'), class: "btn btn-lg btn-default"
In my routes I have:
namespace :partners do
resources :regulations, as: :rental_company_regulation, except: :show
end
My controller looks like this:
module Partners
class RegulationsController < ApplicationController
include Partners::BaseController
load_and_authorize_resource through: :rental_company, singleton: true
before_action :set_breadcrumbs
before_action :set_regulation, only: :new
def new
if #rental_company_regulation
redirect_to edit_partners_rental_company_regulation_path(#rental_company_regulation)
end
add_breadcrumb t('partners.regulations.new')
end
def create
if #regulation.save
flash[:notice] = t('partners.regulations.created')
redirect_to partners_root_path
else
add_breadcrumb t('partners.regulations.new')
render :new
end
end
def edit
add_breadcrumb t('partners.regulations.edit')
end
def update
if #regulation.update(regulation_params)
flash[:notice] = t('partners.regulations.updated')
redirect_to partners_root_path
else
add_breadcrumb t('partners.regulations.edit')
render :edit
end
end
protected
def set_regulation
#rental_company_regulation = Regulation.where(rental_company_id: rental_company).first
end
def set_breadcrumbs
add_breadcrumb current_partner.rental_company.name, :partners_root_path
end
private
def regulation_params
params.require(:regulation).permit(:content_pl, :content_en, :rental_company_id)
end
end
end
Creating resource from scratch works properly. But I went to:
"http://localhost:3000/partners/regulations/4/edit" to edit regulation I have the following error:
undefined method `partners_regulation_path' for #<#<Class:0x0000000242fae8>:0x00000007d9afb0>
I can't solve this problem. What's wrong?
Edit:
Rake routes:
partners_rental_company_regulation_index GET /partners/regulations(.:format) partners/regulations#index
POST /partners/regulations(.:format) partners/regulations#create
new_partners_rental_company_regulation GET /partners/regulations/new(.:format) partners/regulations#new
edit_partners_rental_company_regulation GET /partners/regulations/:id/edit(.:format) partners/regulations#edit
partners_rental_company_regulation PATCH /partners/regulations/:id(.:format) partners/regulations#update
Edit2:
I've changed my form too looks like this:
= horizontal_simple_form_for [:partners, #regulation], url: partners_rental_company_regulation_path
Now I can edit exisiting resource but can't create a new one. When I trying to create the new one I have the following error:
No route matches {:action=>"update", :controller=>"partners/regulations"} missing required keys: [:id]
What's wrong?

Answer 1

as
To simplify user2675613's answer, your error is basically caused by using the as argument in your routes
as: basically allows you to "name" the route:
#config/routes.rb
resources :users # -> users_path
resources :users, as: :members # -> members_path
Error
Your error is as follows:
undefined method `partners_regulation_path'
This basically means you're using a path which doesn't exist. This is because you've used the as: option in your routes:
#config/routes.rb
resources :partners do
resources :regulations #-> partners_regulation_path
end
resources :partners do
resources :regulations, as: "test" # -> partners_test_path
end
This is confirmed with your routes:
partners_rental_company_regulation_index
new_partners_rental_company_regulation
edit_partners_rental_company_regulation
partners_rental_company_regulation
Fix
The way to fix this is to remove the as: option from your routes:
#config/routes.rb
resources :partners do
resources :regulations #-> partner_regulations_path
end
Alternatively, if you wanted to keep the custom name for your paths, you'll have to change your path references to parental_company_regulation_path

Answer 2

As you can see you in your rake routes your url to edit a regulation is edit_partners_rental_company_regulation GET /partners/regulations/:id/edit(.:format) and to create a new one the url is new_partners_rental_company_regulation GET /partners/regulations/new(.:format).
You need to change the way you are using your form here. You can create a partial for all the common fields of form but you need to separate the url part in your form to make a create and update requests.
You can make a partial _form.html.haml with contents:
= f.error_notification
%ul.nav.nav-pills
%li
= link_to image_tag("flag_pl.png"), '#PL', class: 'regulation_pl'
%li
= link_to image_tag("flag_en.png"), '#EN', class: 'regulation_en'
.polish_regulation
%h1.page-header
= t('partners.regulations.polish')
= f.input :content_pl, :as => :ckeditor, :input_html => { :ckeditor => {:toolbar => 'Pure', width: 750} }, error: false
.english_regulation
%h1.page-header
= t('partners.regulations.english')
= f.input :content_en, :as => :ckeditor, :input_html => { :ckeditor => {:toolbar => 'Basic', width: 750} }, error: false
Then inside your edit.html.haml you can have:
= content_for :heading, t('partners.regulations.edit')
.row
.col-md-6
= horizontal_simple_form_for [:partners, #regulation], url: partners_rental_company_regulation_path do |f|
= render :partial => "form", :locals => { :f => f } #you need to pass other required locals too else it'll give error
= f.submit t('actions.save_changes'), class: "btn btn-lg btn-default"
Similarly inside your new.html.haml you can have:
= content_for :heading, t('partners.regulations.new')
.row
.col-md-6
= horizontal_simple_form_for [:partners, #regulation], url: partners_rental_company_regulation_index_path do |f|
= render :partial => "form", :locals => { :f => f } #you need to pass other required locals too else it'll give error
= f.submit t('partners.regulations.save'), class: "btn btn-lg btn-default"