Placing data from associated table in view - ruby-on-rails

Question

I have a class called Imprintable that contains this
class Imprintable < ActiveRecord::Base
has_one :brand
# ...
I also have a class called Style that contains the following:
class Style < ActiveRecord::Base
belongs_to :imprintable
# ...
My schema for Styles contains a foreign key to the imprintable table in the form of an integer called imprintable_id
I'm trying to display an attribute from the Style table called catalog_no in a view to edit information about an imprintable. I know what I have is wrong because style doesn't exist as a member of the imprintable table, but I'm not sure how to access the name of the catalog_no from the corresponding entry in the styles table. HTML is like this:
<!-- language: HTML -->
<div class="box-info">
<%= render partial: 'shared/modal_errors', locals: {object: imprintable} %>
<%= form_for(imprintable) do |f| %>
<div id="horizontal-form" class="collapse in">
<!-- Lots of HTML.. -->
<div class="form-group">
<%= f.label :style.catalog_no, class: 'col-sm-2 control-label' %>
<div class="col-sm-10">
<%= f.text_field :style.catalog_no, class: 'form-control' %>
<!-- Problem is on the above line!! -->
<p class="help-block">The catalog number of the imprintable
</div>
</div>
</div>
<% end %>
</div>
Thanks for your time!

Answer 1

You should use nested form
Model Imprintable looks like this :
class Imprintable < ActiveRecord::Base
has_one :brand
accepts_nested_attributes_for :style
end
In controller edit action
def edit
#imprintable = Imprintable.find(params[:id])
end
In the view file edit.html.erb looks like
<div class="box-info">
<%= render partial: 'shared/modal_errors', locals: {object: imprintable} %>
<%= form_for(#imprintable) do |f| %>
<div id="horizontal-form" class="collapse in">
<%= f.fields_for :style do |d| %>
<div class="form-group">
<%= d.label :catalog_no, class: 'col-sm-2 control-label' %>
<div class="col-sm-10">
<%= d.text_field :catalog_no, class: 'form-control' %>
<p class="help-block">The catalog number of the imprintable
</div>
</div>
<% end %>
</div>
<% end %>
</div>
If you're using rails 4, don't forget add style_attibutes to impritable_params method
private
def impritable_params
## params.require(:your_model).permit(:fields_of_model, association_model_attributes: [:fields_of_association_models])
params.require(:imprintable).permit(style_attributes: [:id, :catalog_no])
end
end