Hey Kevin,
Make sure your Models have the appropriate relationships:
Authors Model
has_many :books
Books Models
belongs_to :author
In your controller you'll need to find all the authors: This
will give you the information you need to populate your select fields.
@authors = Author.find(:all)
Then, in your views use something like this:
<%= f.select :author_id, @authors.collect { |a| [a.name,a.id] } %>
This Model/View/Controller concept is pretty key to Rails. If you
haven't yet had a chance to go through a handful of tutorials, I highly
recommend doing that first.
A few good starters:
http://www.rubyonrails.org/docs
Good luck,
-Nathan
Kevin Burk wrote:
Okay, here's yet another newbie question.
I'm creating an application with several linked tables-for example,
Authors and Books. The "Book" model has its own primary ID
(automatically generated), plus the following fields:
author_id
title
subtitle
subject
The author_id field is a foreign key linking it to the Authors table.
I want to create a static scaffold form so that I can generate new
books. The "author_id" field does not show up in the scaffold, and it
won't accept the field.
ULTIMATELY, I want this field to be a pull-down menu that allows me to
select an author name and it goes back to a hash in the book model to
pull the values (and automatically inserts the correct author_id).
I've tried creating just a plain text field in the static scaffold
form:
<p><label for="">Name</label><br/>
<%= text_field 'book', 'author_id' %></p>
I've also tried form.select and various hashes, but the issue seems to
be that I can't access the field (Book.author_id) from the scaffold.
What gives?
Thanks,
Kevin Burk
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