Neue Transaktion
<% form_tag(:action => 'createTransaction', :id => @group) do -%>
<%= render :partial => 'financial_transactions/form' %>
<%= submit_tag 'Speichern' %>
<%= hidden_field 'financial_transaction', 'order_group_id' %>
<% end -%>
<%= link_to 'Zurück', :controller => 'finance' %>