Add stock form

app/controllers/products_controller.rb

@@ -39,10 +39,22 @@ class ProductsController < ApplicationController
     redirect_to action: :index
   end
 
+  def stock
+    @products = Product.all
+  end
+
+  def update_stock
+    @products = Product.all
+    @products.each do |product|
+      stock_inc = params[:products][product.id.to_s][:stock_inc].to_i
+      product.increment!(:stock, stock_inc) if stock_inc > 0
+    end
+    redirect_to products_path
+  end
+
   private
 
     def product_params
       params.require(:product).permit(:name, :price, :avatar, :category, :stock)
     end
-
 end

app/views/layouts/_header.html.erb

@@ -32,6 +32,7 @@
             <ul class="dropdown-menu" role="menu">
               <li><%= link_to "List", products_path %></li>
               <li><%= link_to "Add product" , new_product_path %></li>
+              <li><%= link_to "Add stock", stock_products_path %></li>
             </ul>
           </li>
           <li class="dropdown">

app/views/products/_product.html.erb

@@ -2,7 +2,7 @@
   <div class="thumbnail">
     <%= image_tag product.avatar %>
     <div class="caption">
-      <h3><%= product.name %> - <%= euro(product.price) %></h3>
+      <h3><%= product.name %> - <%= euro(product.price) %> (<%= product.stock %>)</h3>
       <% if current_user.admin? %>
         <p>
           <%= link_to "Edit", edit_product_path(product), class: "btn btn-default" %>

app/views/products/stock.html.erb

@@ -0,0 +1,14 @@
+<div class="row">
+  <div class="col-md-6 col-md-offset-3">
+    <%= form_tag do %>
+      <% @products.each do |product| %>
+        <%= fields_for "products[]", product do |form| %>
+          <%= image_tag product.avatar %>
+          <%= form.number_field :stock_inc, value: 0, class: 'form-control' %>
+        <% end %>
+      <% end %>
+
+      <%= submit_tag "Insert stock", class: 'btn btn-primary' %>
+    <% end %>
+  </div>
+</div>

config/routes.rb

@@ -17,7 +17,12 @@ Rails.application.routes.draw do
     get 'dagschotel/:product_id' => 'users#dagschotel', as: "dagschotel"
   end
 
-  resources :products
+  resources :products do
+    collection do
+      get  'stock' => 'products#stock', as: 'stock'
+      post 'stock' => 'products#update_stock', as: 'update_stock'
+    end
+  end
   get 'admins' => 'admins#schulden', as: "admins_schulden"
   get 'overview' => 'orders#overview', as: "orders"
 end