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POError 404 for Dynamic Dropdown with rails 3.1 and Ajax (Jquery)
 

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  1. POError 404 for Dynamic Dropdown with rails 3.1 and Ajax (Jquery)
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    <p>I am having trouble on creating dynamic dropdowns where: </p> <p>When you select a country, it renders the partial with cities that belong to a country. </p> <p>I have the models Country has_many cities and City belongs_to Country</p> <p>With firebug I get an Error when fetching the controller action update_city_select, where it selects a Contact record instead of Country record.</p> <p>I followed the example from <a href="http://www.petermac.com/rails-3-jquery-and-multi-select-dependencies/" rel="nofollow">Peter Mac</a></p> <p>Here is my code:</p> <p>application.js</p> <pre><code>jQuery(function($) { // when the #region_id field changes $("#contact_country_id").live('change', function() { // make a POST call and replace the content var country = $('select#contact_country_id :selected').val(); if(country == "") country="0"; jQuery.get('/contacts/update_city_select/' + country, function(data){ $("#cities").html(data); }) return false; }); }) </code></pre> <p>contacts_controller.rb</p> <pre><code> def new @contact = Contact.new @industries = Industry.all @countries = Country.all @cities = City.where(["country_id = ?", 1]).all respond_to do |format| format.html # new.html.erb format.json { render json: @contact } end end . . . def update_city_select @cities = City.where(:country_id =&gt; params[:id]).order(:name) unless params[:id].blank? render :partial =&gt; "cities", :locals =&gt; { :cities =&gt; @cities } end </code></pre> <p>contacts/_form.html.erb</p> <pre><code>&lt;%= form_for(@contact) do |f| %&gt; ... &lt;div class="field"&gt; &lt;%= f.label :country %&gt; &lt;%= f.collection_select :country_id, @countries, :id, :name, :prompt =&gt; "-- Select a country --" %&gt; &lt;/div&gt; &lt;div id="cities" class="field"&gt; &lt;%= render 'cities' %&gt; &lt;/div&gt; ... &lt;% end %&gt; </code></pre> <p>contacts/_cities.html.erb</p> <pre><code>&lt;%= fields_for @contact do |f| %&gt; &lt;%= f.label :city %&gt; &lt;% unless cities.blank? %&gt; &lt;%= f.collection_select :city_id, cities, :id, :name, :prompt =&gt; "-- Select a city --" %&gt; &lt;% else %&gt; &lt;%= f.select "city_id","city_id", :prompt =&gt; "-- Select a city --" %&gt; &lt;% end %&gt; &lt;% end %&gt; </code></pre> <p>routes.rb</p> <pre><code> resources :cities resources :countries resources :contacts get '/contacts/update_city_select/:id' =&gt; 'contacts#update_city_select' </code></pre> <p>You're help on solving this Ajax problem would be most appreciated!</p> <p>Aurelien</p>
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    1. USAurelien Schlumberger
    1. USAurelien Schlumberger
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. COCan you post your "routes.rb" ?
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      1. POError 404 for Dynamic Dropdown with rails 3.1 and Ajax (Jquery)
      1. USBaldrick
    2. CO` resources :cities resources :countries resources :contacts`
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      1. POError 404 for Dynamic Dropdown with rails 3.1 and Ajax (Jquery)
      1. USAurelien Schlumberger
    3. COso you should define the path: `get '/contacts/update_city_select/:id' => 'contacts#update_city_select'`
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      1. POError 404 for Dynamic Dropdown with rails 3.1 and Ajax (Jquery)
      1. USBaldrick
 

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