Update multiple tables with one form

rubyonrails-talk
1

Hi!

I'm new to this group and new to RoR. Because I want to learn RoR I defined a project for myself for learning purposes. So I think this will be my first question of quite a few that will follow.

I try to update multipe tables after sending a form. My form is very basic by now and has a title and a short description and a long description. Idea is that there will be multiple description fields later. So the long desc is in another table. I set up all this foreign key, belongs_to and has_many stuff and I'm now able to create a new document in which all data is stored in the right tables. But I'm not able to update it.

This is how my update method looks right now:

def update   @document = Document.find(params[:id])   @text_items = TextItem.find(:all)   @text_items.each { |ti| @document.text_items << ti }   if @document.update_attributes(params[:document])     flash[:notice] = 'Document was successfully updated.'     redirect_to :action => 'show', :id => @document   else     render :action => 'edit'   end end

I did not get an error but the data from my text_items will not be saved. I read through my books now multiple times and searched the internet but I did not find a solution.

Can somenone please give me a hint? Thanks.

Regards, Stefan

2

Hi Stefanm

Stefan Frede wrote:

I try to update multipe tables after sending a form.

The easiest way to handle this is to use form_tag instead of form_for. Then in your controller you'll individually assign values from the params hash to the appropriate model.

HTH, Bill

3

Michael

4

Thanks. I don't understand it completely what happened in the screencasts but I think that is a problem I can solve :slight_smile:

@Bill: Thought that this was what I've done but I now think that I know where my further problems were. Will try to get it running this way too.

Regards, Stefan