Rails routing error: No route matches [DELETE] - ruby-on-rails

Question

I'm a ruby on rails noob having some trouble deleting a resource with a form_for.
I'm trying to create a wish-list for products where users can add multiple instances of the same product to their list. Rather than create a unique data-base entry for each product on the list (regardless of whether the same product is already on the list), I've included a counter column, 'row,' which increases as the user adds multiples of the same product to his or her wish list. By the same logic, I want the delete action to first decrease this counter until it reaches 0, and then remove the item from the data-base.
Here's what I've got:
The error message:
No route matches [DELETE] "/wish"
Routes
Routes match in priority from top to bottom
wishes_path GET /wishes(.:format) wishes#index
POST /wishes(.:format) wishes#create
new_wish_path GET /wishes/new(.:format) wishes#new
edit_wish_path GET /wishes/:id/edit(.:format) wishes#edit
wish_path GET /wishes/:id(.:format) wishes#show
PATCH /wishes/:id(.:format) wishes#update
PUT /wishes/:id(.:format) wishes#update
DELETE /wishes/:id(.:format) wishes#destroy
wishes/index.html.erb
<div class="wishes_body">
<h2>Your Wish-List</h2>
<table>
<thead>
<tr>
<th class="field-label col-md-2 active">
<label>Name</label>
</th>
<th class="col-md-3">Description</th>
<th class="col-md-1">Amount</th>
<th class="col-md-1">Number</th>
<th class="col-md-2">Total</th>
<th colspan="3" class="col-md-3">Remove</th>
</tr>
</thead>
<tbody>
<% #wishes.all.each do |w| %>
<%= render partial: 'wish', object: w %>
<% end %>
</tbody>
</table>
</div>
_wish.html.erb
<tr>
<td class="field-label col-md-2 active">
<label><%= wish.product.name %></label>
</td>
<td class="col-md-3"><%= wish.product.description %></td>
<td class="col-md-1"><%= '%.2f' % (wish.product.amount/100.00) %></td>
<td class="col-md-1"><%= wish.total %></td>
<td class="col-md-2"><%= '%.2f' % ((wish.product.amount/100.00) * wish.total) %></td>
<%= form for(wish_path(wish), :html => { method: 'delete' }) do %>
<td><%= f.label(:i, "How many:") %></td>
<td><%= f.number_field(:i) %></td>
<td><%= f.submit :value => "Remove" %></td>
<% end %>
</tr>
controllers/wishes.controller.rb
class WishesController < ApplicationController
def index
#wishes = Wish.where("user_id = ?", "#{current_user.id}")
end
def show
#user = current_user
#products = #user.wish_list.products.order("created_at DESC")
end
def create
#product = Product.find(params[:product_id])
if Wish.where(user_id: "#{current_user.id}", product_id: "#{#product.id}").exists?
#wish = Wish.where(user_id: "#{current_user.id}", product_id: "#{#product.id}").first
#wish.total += 1
else
#wish = #product.wishes.new
#wish.user = current_user
#wish.total = 1
end
respond_to do |format|
if #wish.save
format.html { redirect_to action: "index", notice: 'You have added <%= #wish.product %> to your wish list.' }
format.json { render :index, status: :created }
else
format.html { redirect_to #product, alert: 'Wish was not created succesfully.' }
format.json { render json: #wish.errors, status: :unprocessable_entity }
end
end
end
def destroy
case i = params[:i]
when #wish.total > i
#wish.total -= i
respond_to do |format|
format.html { redirect_to action: 'index', notice: 'You removed the item from your wish-list.' }
format.json { head :no_content }
end
when #wish.total == i
#wish.destroy
respond_to do |format|
format.html { redirect_to action: 'index', notice: 'You removed the item from your wish-list.' }
format.json { head :no_content }
end
else
format.html { redirect_to action: 'index', alert: 'You cannot remove more items than you have on your list.' }
format.json { head :no_content }
end
end
end
config.routes.rb
Rails.application.routes.draw do
root 'static_pages#index'
get 'static_pages/about'
get 'static_pages/contact'
get 'static_pages/landing_page'
post 'static_pages/thank_you'
resources :orders, only: [:index, :show, :new, :create]
resources :users
devise_for :users, :controllers => { :registrations => "my_devise/registrations" },
:path => '', :path_names => {:sign_in => 'login', :sign_out => 'logout', :sign_up => 'register'}
resources :wishes
resources :products do
resources :comments
end
resources :payments
end

Answer 1

You should implement this using form_tag instead of form_for, because you're not going to use #wish resource in your form:
<%= form_tag wish_url(wish), method: :delete do %>
etc.