[Rails] Re: form_for with multiple objects, each with a preset attribute?

This was really useful. Thanks for leaving info on how you did it.

On Wednesday, May 13, 2009 1:43:10 AM UTC-5, Jacob Patton wrote:

I'm using Rails to create a schedule of a shop's opening and closing
hours.  Simplified versions of the models I've set up is:

class Account < ActiveRecord::Base

  has_many :opening_hours, :dependent => :destroy

end

class OpeningHour < ActiveRecord::Base

  belongs_to    :account

  # table schema
  # create_table "opening_hours", :force => true do |t|
  #   t.integer "account_id"
  #   t.string  "day_of_week"
  #   t.string  "begins"
  #   t.string  "ends"
  # end

end

So an account might have one opening_hour for Monday (:day_of_week =>
"Monday", :opens =>"9am", :closes => "5pm"), two for Tuesday
([:day_of_week => "Tuesday", :opens => "9am", :closes => "12pm"],
[:day_of_week => "Tuesday", :opens => "1pm", :closes => "5pm"]), etc.

As I begin work on the HTML form for this schedule, I realize I'm not
sure of the best way to allow the user to add multiple objects within
one form when each object already has an attribute defined (the
day_of_week attr).

The form I'm working on should look like this:

Monday Opening Hours

[begins text_input] - [ends text_input]

Tuesday Opening Hours

[begins text_input] - [ends text_input]

[begins text_input] - [ends text_input]
...

Does anyone know of a standard way to handle this sort of
requirement?  I'm familiar with this method[1] to add multiple child
objects in a single form, but in Ryan's example, the tasks lack any
pre-determined attribute values.

[1]: http://railscasts.com/episodes/73-complex-forms-part-1

Thanks very much for your help,

Jacob Patton

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