ruby on rails - Model index.html page displaying duplicated data -

i'm getting strange behavior on model index page. when create 1 model object, displays correctly on index page. when create second model object, shows duplicates of both objects on index page, so

object object b object object b 

i've confirmed duplicate objects not being created in database. also, when destroy object b, displays object correctly once.

index.html.erb

<table class="table">   <thead>     <tr>       <th>image</th>       <th>name</th>       <th>description</th>       <th>url</th>       <th></th>       <th></th>       <th></th>     </tr>   </thead>    <tbody>     <%= render @companies %>   </tbody> </table> 

_company.html.erb

<% @companies.each |company| %>   <tr>     <td><%= image_tag company.image(:medium) %></td>     <td><%= company.name %></td>     <td><%= company.description %></td>     <td><%= company.url %></td>     <td><%= link_to 'show', company %></td>     <td><%= link_to 'edit', edit_company_path(company) %></td>     <td><%= link_to 'destroy', company, method: :delete, data: { confirm: 'are sure?' } %></td>   </tr> <% end %> 

companies_controller.rb

def index     @companies = company.all      respond_to |format|       format.html # index.html.erb       format.json { render json: @companies }     end   end 

change partial to,

<tr>   <td><%= image_tag company.image(:medium) %></td>   <td><%= company.name %></td>   <td><%= company.description %></td>   <td><%= company.url %></td>   <td><%= link_to 'show', company %></td>   <td><%= link_to 'edit', edit_company_path(company) %></td>   <td><%= link_to 'destroy', company, method: :delete, data: { confirm: 'are sure?' } %></td> </tr> 

you need drop each loop in partial.

the <%= render @companies %> renders partial each company you're looping through companies again in each partial.

see 3.4.5 rendering collections @ http://guides.rubyonrails.org/layouts_and_rendering.html#rendering-collections more info