Rails server responds 404 when sending show/update/destroy request -

i have problem ruby on rails web app.

i have model class called source, , in routes.rb, add following configuration:

namespace :admins   resources :sources     collection       'batch_new'       post 'batch_create'     end   end end 

when run rake routes, can see:

admins_source    /admins/sources/:id(.:format)  admins/sources#show               put    /admins/sources/:id(.:format)  admins/sources#update               delete /admins/sources/:id(.:format)  admins/sources#destroy 

but when send these requests via clicking link or form submitting, 404.

here code in views/admins/sources/_form.html.erb

<%= form_for [:admins, @source] |f| %>   <% if @source.errors.any? %>     <div id="error_explanation">       <h2><%= pluralize(@source.errors.count, "error") %> prohibited source being saved:</h2>        <ul>       <% @source.errors.full_messages.each |msg| %>         <li><%= msg %></li>       <% end %>       </ul>     </div>   <% end %>    <div class="field">     <%= f.label :name %>     <%= f.text_field :name %>   </div>    <div class="field">     <%= f.label :url %>     <%= f.text_field :url %>   </div>    <div class="actions">     <%= f.submit %>   </div> <% end %> 

here code of destroy link on views/admins/sources/index.html.erb:

<%= link_to 'destroy', admins_source_url(source), method: :delete, data: { confirm: 'are sure?' } %> 

and here code in sourcescontroller

def destroy     @source = source.find(params[:id])     @source.destroy      respond_to |format|       format.html { redirect_to admins_sources_url }       format.json { head :no_content }     end end 

this problem occurs in production environment. development environment fine.

i did asset precompiling production env before starting server(unicorn). i've no idea how fix issue.

here's environment:

os: ubuntu linux 12.04 lts

ruby version: 2.0.0-p0

rails version: 3.2.13

rails server: unicorn 4.6.2

database production: mysql

database development: sqlite3

you error because have other error (like migration problem, or uncompiled asset). in production logs find real error, posted here should work (if had 1k points not ask this, sorry if did check logs :) )