Rails nested form with three models - ruby-on-rails

Question

I have three models
class Property < ActiveRecord::Base
has_many :contact
accepts_nested_attributes_for :contact
has_many :business
accepts_nested_attributes_for :business
end
class Business < ActiveRecord::Base
belongs_to :property
has_many :contact
end
class Contact < ActiveRecord::Base
belongs_to :property
belongs_to :business
end
I created a form that creates the Property with a nested contact and a nested business, how can I get that business to have a nested contact?
Here is my form
<%= form_for(#property) do |f| %>
<div class="field">
<%= f.label :address %><br>
<%= f.text_field :address %>
</div>
<% end %>
<%= f.fields_for :contact do |contact_form| %>
<div class="field">
<%= f.label :contact_title, "Title" %><br>
<%= contact_form.text_field :title %><br>
<%= f.label :contact_name, "Name" %><br>
<%= contact_form.text_field :name %><br>
</div>
<% end %>
<%= f.fields_for :business do | business_form| %>
<div class="indv-biz field">
<%= f.label :business_name, "Name" %><br>
<%= business_form.text_field :name %><br>
</div>
<div class="business-contact">
<p>Business Contact</p>
<%= f.fields_for :business_contact do | business_contact | %>
<div class="field">
<%= business_contact.label :contact_title, "Title" %><br>
<%= business_contact.text_field :title %><br>
<% end %>
<% end %>
I can get it to save so the business is connected to the property and the contact is connected to the property but I can't figure out how to get a contact connected to the business
Thanks

Answer 1

You should try deep nesting like this. your requirement is a property have many business which in-turn have many contacts. In this case, you actually should do is setting nested form for property with business and that business should have nested form of contacts. The below one will work for you.
Form
nested_form_for #property do |f|
...
f.fields_for :bussiness do |bussiness_form|
...
bussiness_form.fields_for :contact_form do |contact_form|
....
end
end
end
end
Models
class Property < ActiveRecord::Base
has_many :contact
has_many :business
accepts_nested_attributes_for :business
end
class Business < ActiveRecord::Base
belongs_to :property
has_many :contacts
accepts_nested_attributes_for :contacts
end
class Contact < ActiveRecord::Base
belongs_to :property
belongs_to :business
end
controller
def property_params
params.require(:property).permit(:id,.., :bussiness_attributes => [:id,.., , :contacts_attributes => [:id, ..]])
end