client side form validation not working for association - ruby-on-rails

Question

i have two models department and address and they are associated
with one another but when i use client side form validation address
model fields are not getting validated. The javascript for
validating associated model is not being generated.
Department model
class Department < ActiveRecord::Base
attr_accessible :agency_head, :agency_head_rank, :department_type_id, :fax, :name,
:phone, :address_attributes
validates :name , :length => { :minimum => 2 } , :presence => true
validates :department_type_id , :agency_head,:agency_head_rank,:phone,:fax, :presence => true
belongs_to :department_type
belongs_to :address, :class_name => "Address", :foreign_key => "address_id"
accepts_nested_attributes_for :address,:allow_destroy => true
end
Address model
class Address < ActiveRecord::Base
attr_accessible :state, :street1, :street2, :town, :zipcode, :county
validate :street1 ,:street2,:town,:state,:county,:zipcode ,:presence => true
has_one :department
end
view-page
<h1 id="form-title">Add New Department</h1>
<%=form_for #department ,:validate=>true do |f|%>
<div id="respond">
<% if #department.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#department.errors.count, "error") %> prohibited this post from being saved:</h2>
<ul>
<% #department.errors.full_messages.each do |msg| %>
<li>
<%= msg %>
</li>
<% end %>
</ul>
</div>
<% end %>
<p class="comment-form-author">
<label for="Department Name">Department Name</label><span class="required">*</span>
<%= f.text_field :name, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="Department Type">Department Type</label>
<%= f.collection_select :department_type_id, #dept_types, :id, :name, :prompt => true %>
</p>
<%= f.fields_for :address, #department.address ,:validate=> true do |addr| %>
<p class="comment-form-author">
<label for="Street1">Street 1</label>
<%= addr.text_field :street1 , :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="Street 2">Street 2</label>
<%= addr.text_field :street2, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="Town">Town</label>
<%= addr.text_field :town, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="State">State</label>
<%= addr.text_field :state, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="State">County</label>
<%= addr.text_field :county, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="Zip Code">Zip Code</label>
<%= addr.text_field :zipcode, :size => 30, 'aria-required' => 'true' %>
</p>
<% end %>
<p class="comment-form-author">
<label for="agency head">Agency Head</label><span class="required">*</span>
<%= f.text_field :agency_head, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="agency head rank">Agency Head Rank</label><span class="required">*</span>
<%= f.text_field :agency_head_rank, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="phone">Phone</label><span class="required">*</span>
<%= f.text_field :phone, :size => 30, 'aria-required' => 'true' %>
</p>
<p class="comment-form-author">
<label for="fax">Fax</label><span class="required">*</span>
<%= f.text_field :fax, :size => 30, 'aria-required' => 'true' %>
</p>
</div>
<div class="spacer">
<br/>
<center>
<%= f.button " Submit ", :id => 'my_login_form_button' %>
</center> </div> <% end %> </div> </div> </div> </div> </div>

Answer 1

You can use Jquery validate to validate your forms. It is much easier than doing it manually.

Answer 2

I find out my mistake use this one in address model.
validates :street1 ,:street2,:town,:state,:county,:zipcode ,:presence => true