<%= form_for :client, :url => clients_url, :html => { :method => :post } do |f| -%>
<p>Client Name:<br/><%= f.text_field :client_name, :size => 60 %></p>
<%= submit_tag 'Save' %>
<% end -%>

def create
@client = Client.new(params[:client])
@client.save!
flash[:notice] = 'Client saved'
redirect_to :action => 'index'
rescue ActiveRecord::RecordInvalid
render :action => 'new'
end

match ':controller(/:action(/:id))(.:format)'
resources :clients

Started POST "/clients" for 127.0.0.1 at Wed Sep 12 10:37:31 +0800 2012
Processing by ClientsController#index as HTML
Parameters: {"commit"=>"Save", "authenticity_token"=>"fWBMy8fzGo1BHwm5yN/oXClUUfy+pS2R4Z2Hhzu2/20=", "utf8"=>"342234223", "client"=>{"client_name"=>"wefw"}}
[1m[35mClient Load (0.2ms)[0m  SELECT "clients".* FROM "clients"
Rendered clients/index.html.erb within layouts/application (0.6ms)
Rendered layouts/_menu.html.erb (0.1ms)
Completed 200 OK in 14ms (Views: 12.4ms | ActiveRecord: 0.2ms)