div class wrapping fieldwitherrors won't work - ruby-on-rails

Question

My Rails application just wont add any class to fields with errors. Cant find wihat is the problem.
Got this in model:
validates_presence_of :name
validates_uniqueness_of :name
validates_presence_of :phone
Any ideas where to start looking for solutions ?
This is the view erb file which does not generate the required styled class:
<%= form_for :company, :url => {:action => 'create_lead'}, :html => {:class => "form-horizontal"} do |f| %>
<div class="">
<div class="span2">
<%= f.label :csdd_nr, "CSDD numurs" %>
<%= f.text_field :csdd_nr, {:class => "input-small"} %>
</div>
<div class="span4">
<%= f.label :name, "Nosaukums" %>
<%= f.text_field :name %>
</div>
<div class="span6">
<%= f.label :ap_veh_count, "Auto skaits" %>
<%= f.text_field :ap_veh_count, {:class => "input-small"} %><br /><br />
</div>
<div class="span6">
<%= f.label :office_adress_street, "Faktiskā adrese" %>
<%= f.text_field(:office_adress_street, {:placeholder => 'Iela', :class => "input-medium"}) %> <%= f.text_field(:office_adress_city, {:placeholder => 'Pilsēta', :class => "input-small"}) %> <%= f.text_field(:office_adress_postcode, {:placeholder => 'Pasta indekss', :class => "input-small"}) %>
</div>
<div class="span4">
<%= f.label :web, "Mājaslapa" %>
<%= f.text_field :web %><br /><br />
</div>
<div class="span4">
<%= f.label :phone, "Telefona numurs" %>
<%= f.text_field :phone %>
</div>
<div class="span4">
<%= f.label :email, "E-pasts" %>
<%= f.text_field :email %>
</div>
<div class="span4">
<%= f.label :company_field, "Uzņēmuma nodarbošanās" %>
<%= f.text_field :company_field %><br /><br />
</div>
<%= f.hidden_field(:company_status, :value => "3") %>
<div class="span12">
<br /><br />
<%= submit_tag("Saglabāt", :class => 'btn btn-primary') %>
<%= link_to "Atcelt", {:action => 'list_leads'}, :class => 'btn' %>
</div> def new_lead
#company = Company.new
end
def create_lead
#company = Company.new(params[:company])
if #company.save
flash[:success] = "Uzņēmums saglabāts"
redirect_to(:action => 'new_lead')
else
flash[:alert] = "!!! Uzņēmums nav saglabāts"
redirect_to(:action => 'new_lead')
end
end
</div>
<% end %>
OK, and here is the controller which saves the data to database:
def new_lead
#company = Company.new
end
def create_lead
#company = Company.new(params[:company])
if #company.save
flash[:success] = "Uzņēmums saglabāts"
redirect_to(:action => 'new_lead')
else
flash[:alert] = "!!! Uzņēmums nav saglabāts"
redirect_to(:action => 'new_lead')
end
end

Answer 1

This happens because you're redirecting instead of rendering, when there is a validation error. Your controller should look like:
def create_lead
#company = Company.new(params[:company])
if #company.save
flash[:success] = "Uzņēmums saglabāts"
redirect_to(:action => 'new_lead')
else
flash[:alert] = "!!! Uzņēmums nav saglabāts"
render(:action => 'new_lead')
end
end