Rails 3 Routes issue on form Edit -

basically whats happening can create new item gets saved table in db. when go edit item, form opens up, make change , when go submit, takes me same url edit page , gives me routing error no route matches "/support/14/edit" although if enter in address bar opens edit form fine, doesn't have of changes saved. here code.

routes.rb

resources :support 

support_controller.rb

def new   @support_item = support.new    respond_to |format|     format.html # new.html.erb     format.xml  { render :xml => @support_item }   end end  # /support/1/edit def edit   @support_item = support.find(params[:id]) end  # post /support # post /support.xml def create   @support_item = support.new(params[:support_item])    respond_to |format|     if @support_item.save       format.html { redirect_to("/support", :notice => 'question created.') }     else       format.html { render :action => "new" }     end   end end  # put /support/1 # put /support/1.xml def update   @support_item = support.find(params[:id])    respond_to |format|     if @support_item.update_attributes(params[:support_item])       format.html { redirect_to("/", :notice => 'question updated.') }       format.xml  { head :ok }     else       format.html { render :action => "edit" }       format.xml  { render :xml => @support_item.errors, :status => :unprocessable_entity }     end   end end 

support.rb

class support < activerecord::base   belongs_to :role    scope :admin_available, order("role_id asc")       support.all   end    def self.available(user)     questions =   where(:role_id => 1)     questions +=  where(:role_id => user.roles)     questions   end end 

_form.html.erb

  <% if @support_item.errors.any? %>     <div id="error_explanation">       <h2><%= pluralize(@support_item.errors.count, "error") %> prohibited question being saved:</h2>        <ul>       <% @support_item.errors.full_messages.each |msg| %>         <li><%= msg %></li>       <% end %>       </ul>     </div>   <% end %>    <div class="field">     <%= f.label "support item for:" %><br />     <%= f.collection_select :role_id, role.find_by_max(5), :id, :name, {:default => 'everyone'} %>   </div>   <div class="field">     <%= f.label :question %><br />     <%= f.text_field :question, :class => 'genform_question'%>   </div>   <div class="field">     <%= f.label :answer %><br />     <%= f.text_area :answer, :class => 'genform_textarea' %>   </div>   <div class="field">     <%= f.label :url %><br />     <%= f.text_field :url, :class => 'genform_question' %>   </div>   <div class="actions">     <%= f.submit %>   </div> 

new.html.erb

<h1>new support item</h1>  <% form_for @support_item, :url => { :action => "create" }, :html => { :method => :post } |f| %>     <%= render 'form', :f => f %> <% end %> 

edit.html.erb

<h1>editing support item</h1>  <% form_for @support_item, :url => { :action => "edit" }, :html => { :method => :post } |f| %>         <%= render 'form', :f => f %> <% end %> 

i believe thats relavent code.

<h1>editing support item</h1>  <% form_for @support_item |f| %>         <%= render 'form', :f => f %> <% end %> 

you overriding url. should able auto-generated if doing standard rest. if doesn't work out, know don't want submit /support_items/1/edit, want submit /support_items/1.