Rails: duplicating information into another model if conditions met - ruby-on-rails

Question

I've got a list of articles with checkboxes on a form. When a box is checked, the body of the selected article is copied into one of x text areas.
Should a user want to make a change to the body of an article in the text area I need to send that change through my controller into a new Rails model (called an Edit).
I already have the record being created, I just need the application to record the changes into a new Edit record. Here's my relevant controller code:
new
def new
#template = Template.find(params[:template])
#article_count = #template.pages-1
#doc = Doc.new
#doc.template_id = #template.id
#doc.user_id = current_user.id
#articles = current_user.brand.articles
respond_to do |format|
format.html
format.json { render json: #doc }
end
end
create
def create
#doc = Doc.new(params[:doc])
respond_to do |format|
if #doc.save
#make editable version
if current_user.brand.try(:editable?)
#doc.articles.each do |article|
#edit = Edit.new
#edit.name = article.name
#edit.video = article.video
#something here to get the bodies of the text areas
#edit.article_id = article.id
#edit.doc_id = #doc.id
#edit.user_id = current_user.id
#edit.save
end
end
#doc.create_activity :create, owner: current_user
format.html { redirect_to share_url(#doc.user.ftp, #doc) }
format.json { render json: #doc, status: :created, location: #doc }
else
format.html { render action: "new" }
format.json { render json: #doc.errors, status: :unprocessable_entity }
end
end
end
And here's the code that makes the text areas in the view.
<% #article_count.times do |article| %>
<div id="edit<%= article %>" class="tab-pane <%= "active" if article == 0 %>">
<%= text_area_tag("edit[#{article}][body]") %>
</div>
<% end %>
Records are created for each article, but I can't seem to be able to save the edits from the text areas. It's kind of a nested-form arrangement. Any help at all would be definitely appreciated. Cheers!

Answer 1

I've solved this by breaking the form up into two pages: one handles the selection, the second the editing. Given that a Doc has many edits, this is the method I made for part two of the form:
def edit_content
#doc = Doc.find(params[:id])
if !#doc.edits.exists?
#doc.articles.reverse.each do |article|
#doc.edits.build(:body => article.body)
end
end
end
Hope that helps someone.