First, I would like to thank Luca for this post.
Add in Gemfile
gem "nested_form", :git => 'https://github.com/ryanb/nested_form.git' |
Then run
bundle install
and
rails g nested_form:install
In my “parent” model:
class Allergy < ActiveRecord::Base validates :name, :presence => true has_many :attachments, :dependent => :destroy accepts_nested_attributes_for :attachments end |
In my “child” model:
class Attachment < ActiveRecord::Base belongs_to :allergy, :polymorphic => true #add polymorphic mount_uploader :attachment, AttachmentUploader end |
In my views:
... <%= nested_form_for [@patient, @allergy], :html => {:multipart => true} do |f| %> <%= render :partial => "fields", :locals => {:f => f} %> <% end %> ... |
and in the partial I have this:
<%= f.fields_for :attachments do |attachment_form| %> <div class="clearfix"> <%= attachment_form.label :desc %> <%= attachment_form.text_field :desc %> <%= attachment_form.label :attachment %> <%= attachment_form.file_field :attachment %> <%= attachment_form.link_to_remove "Remove this attachment" %> </div> <% end %> <%= f.link_to_add "Add attachment", :attachments %> |
And to save in the controller, I have something like this:
def create ... @patient = Patient.find(params[:patient_id]) if @allergy = @patient.allergies.create(params[:allergy]) # success else # error handling end end |
I might have missed something, but if you have comments, suggestions, and corrections do not hesitate to post them below. I am also very new to Ruby on Rails.
Might be different from what you have but this doc was useful.
twitter.com/wenbert