passing an id in Rails 4 - ruby-on-rails-4

Question

If i start this question by showing you my routes: -
c:\Sites\work\easygifts>rake routes
Prefix Verb URI Pattern Controller#Action
writing_stores GET /stores/writing(.:format) stores#writing
office_stores GET /stores/office(.:format) stores#office
time_stores GET /stores/time(.:format) stores#time
home_stores GET /stores/home(.:format) stores#home
wellness_stores GET /stores/wellness(.:format) stores#wellness
travel_stores GET /stores/travel(.:format) stores#travel
bags_stores GET /stores/bags(.:format) stores#bags
leisure_stores GET /stores/leisure(.:format) stores#leisure
quote_stores GET /stores/quote(.:format) stores#quote
stores GET /stores(.:format) stores#index
POST /stores(.:format) stores#create
new_store GET /stores/new(.:format) stores#new
edit_store GET /stores/:id/edit(.:format) stores#edit
store GET /stores/:id(.:format) stores#show
PATCH /stores/:id(.:format) stores#update
PUT /stores/:id(.:format) stores#update
DELETE /stores/:id(.:format) stores#destroy
products GET /products(.:format) products#index
POST /products(.:format) products#create
new_product GET /products/new(.:format) products#new
edit_product GET /products/:id/edit(.:format) products#edit
product GET /products/:id(.:format) products#show
PATCH /products/:id(.:format) products#update
PUT /products/:id(.:format) products#update
DELETE /products/:id(.:format) products#destroy
root GET / stores#index
The issue i am having is getting the :id into the 'quote' view.
I am wanting to see in my routes; quote_stores GET /stores/quote/:id(.:format) stores#quote Or something like it.
Can :id only be passed through CRUD?? I thought i could pass instance variables through pretty much anywhere so I wrote this in my view as the link to the view with the :id info passed into it.
<% #products.each do |office| %>
<div class="item">
<%= link_to image_tag(office.image_url), image_path(office.image_url), class: 'fancybox' %>
<p><strong><%= office.item_code%></strong>
</br><em><%= truncate(office.title, length: 18) %></em></p>
<p class="showArticle"><%= link_to 'Show Article', store_path(office) %></p>
<p class="addTo"><%= link_to 'Price Info', quote_stores_path(office) %></p>
</div>
<% end %>
I am referring to the <%= link_to 'Price Info', quote_stores_path(office) %> which upon click takes you to the correct view and in the URI path it even lists the correct :id however it does not pass into the view that :id's information.
My controller code is as follows: -
class StoresController < ApplicationController
add_breadcrumb 'home', :stores_path
def index
#products = Product.all
end
def show
#products = Product.find(params[:id])
if #products.nil?
redirect_to action: :index
end
add_breadcrumb 'Back', #products.section
end
def writing
#products = Product.where(:section => 'writing').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'writing', writing_stores_path
end
def office
#products = Product.where(:section => 'office').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'office', office_stores_path
end
def time
#products = Product.where(:section => 'time').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'time', time_stores_path
end
def home
#products = Product.where(:section => 'home').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'home', home_stores_path
end
def wellness
#products = Product.where(:section => 'wellness').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'wellness', wellness_stores_path
end
def travel
#products = Product.where(:section => 'travel').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'travel', travel_stores_path
end
def bags
#products = Product.where(:section => 'bags').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'bags', bags_stores_path
end
def leisure
#products = Product.where(:section => 'leisure').paginate(:per_page => 5, :page => params[:page])
add_breadcrumb 'leisure', leisure_stores_path
end
def quote
#products = Product.find_by(params[:id])
if #products.nil?
redirect_to action: :index
end
end
end
So apart from my code not being DRY, what am i missing here please? What am i not understanding about :id's?

Answer 1

In your config/routes.rb, you probably have this line:
resources :stores
Which creates routes for the standard CRUD actions of the stores resource. You can define additional actions for this resource which either apply to the collection (multiple products) or the members individually (a single product).
Please note that it would probably more logical to name the resource products rather than stores, since it seems to be handling Products.
In your case, you'd want to define an additional member action. Since it applies to a single product, Rails will define a route which takes an id parameter:
resources :stores do
member do
get 'quote'
end
end
This will generate the following route (rake routes):
quote_store GET /stores/:id/quote(.:format) stores#quote
Note that the route is called quote_store, the singular form rather than the plural.
Also see the Rails guides for more information about collection and member routes.