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POCreating multiple Ajax buttons with a each loop
 

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    <p>I have two models : User and Product. One user has many owned_products, and a product belongs to an owner. The products have a <code>available:boolean</code>.</p> <p>I want to make a list of owned_products that can be toggled from available to unavailable with a button. Here is what I did, using the <a href="http://ruby.railstutorial.org/chapters/following-users?version=4.0#sec-a_working_follow_button_with_ajax" rel="nofollow">M. Hartl example</a> :</p> <p><strong>app/views/shared/_owned_products_list.html.erb</strong></p> <pre class="lang-rb prettyprint-override"><code>&lt;ol class="products"&gt; &lt;% @owned_products.each do |product| %&gt; &lt;%= link_to(product.name, product) %&gt; &lt;%= render 'products/available_form', product: product %&gt; &lt;% end %&gt; &lt;/ol&gt; </code></pre> <p><strong>app/views/products/_available_form.html.erb</strong></p> <pre class="lang-rb prettyprint-override"><code>&lt;div id="available_button_&lt;%=product.id%&gt;"&gt; &lt;% if product.available? %&gt; &lt;%= form_for(product, remote: true) do |f| %&gt; &lt;div&gt;&lt;%= f.hidden_field :available, value: nil %&gt;&lt;/div&gt; &lt;%= f.submit t('product.available.undo'), class: "btn btn-small" %&gt; &lt;% end %&gt; &lt;% else %&gt; &lt;%= form_for(product, remote: true) do |f| %&gt; &lt;div&gt;&lt;%= f.hidden_field :available, value: true %&gt;&lt;/div&gt; &lt;%= f.submit t('product.available.do'), class: "btn btn-primary btn-small" %&gt; &lt;% end %&gt; &lt;% end %&gt; &lt;/div&gt; </code></pre> <p><strong>app/controllers/products_controller.rb</strong></p> <pre class="lang-rb prettyprint-override"><code> . . . def update @product = Product.find(params[:id]) if @product.update_attributes(product_params) respond_to do |format| format.html do flash[:success] = t('flash.success.product.update') redirect_to @product end format.js end else render 'edit' end end . . . </code></pre> <p><strong>app/views/products/update.js.erb</strong></p> <pre class="lang-rb prettyprint-override"><code>$("#available_form_&lt;%=@product.id%&gt;").html("&lt;%= escape_javascript(render('available_button', product: @product)) %&gt;") </code></pre> <p>But it doesn't work : The available button is not refreshed at all :</p> <p>When I click on the available (or unavailable) button, nothing change. If I refresh the whole page, it toggles, regardless the number of clicks...</p> <p>Do you know where I failed ?</p> <p><strong>EDIT</strong></p> <p>OK, I got it, it was a dumb fault : my available_form id was <code>available_button_&lt;%=@product.id%&gt;</code> and not <code>available_form_&lt;%=@product.id%&gt;</code>...</p> <p>So here is the right one :</p> <p><strong>app/views/products/update.js.erb</strong></p> <pre class="lang-rb prettyprint-override"><code>$("#available_button_&lt;%=@product.id%&gt;").html("&lt;%= escape_javascript(render('available_button', product: @product)) %&gt;") </code></pre>
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