Hi,
Thanks it works better now. But how am i supposed to access my textfield 
if I am using a get method in my controller?

Route:
  map.resources :products,
    :member => {:add_ingredient => :post }

Controller:
<%= text_field_with_auto_complete :product, :ingredient_name,{},
    {:url => formatted_ingredients_path(:js), :method => :get, :with => 
"'search=' + element.value"} %>
<%=link_to "Add",:action => "add_ingredient",:id => @product%>


Frederick Cheung wrote:
> On Mar 11, 12:26�am, Greg Ma <[email protected]> wrote:
>> <%=link_to "Add",:action => :add_ingredient,:id => @product %>
>>
>> The error:
>> Unknown action
>> No action responded to 30. Actions: add_ingredient, create, destroy,
>> edit, index, new, show, and update
>>
>> the url:http://localhost:3000/products/30/add_ingredient
>>
> 
> assuming that you're using map.resources then you need to add
> add_ingredient as a member action (or you might decide that it is
> preferable to have ingredients as a nested resource of products)
> Either way you should really have a GET request that changes the state
> of the database
> 
> Fred

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