Re: [Rails] Associations in models - am I doing it wrong?

On 9 December 2012 22:22, Dan Brooking <dmbrooking@gmail.com> wrote:
> OK, yeah you are right. It shouldn't be has_one. It sounds like the
> associated you mentioned is the one I'm looking for. With that said, would
> I still have a user_id column? or would that be implicit via the belongs_to?

Using belongs_to implies that you must provide a user_id column in the
database. As I said, work through the tutorial and study the guides
and all will become clear (well, less muddy at least).

Colin

>
>
> On Sun, Dec 9, 2012 at 4:57 PM, Colin Law <clanlaw@googlemail.com> wrote:
>>
>> On 9 December 2012 20:25, Dan Brooking <dmbrooking@gmail.com> wrote:
>> > One of my modesl looks like this:
>> >
>> > class UnprocessedPage < ActiveRecord::Base
>> > has_one :user
>> > attr_accessible :url, :user_id
>> > end
>> >
>> > Do I need :user_id? Or is it implied via "has_one :user"?
>>
>> You should not have a user_id column in the database for a has_one
>> association. If UnprocessedPage has_one :user then User belongs_to
>> :unprocessed_page and User should have an unprocessed_page_id column.
>> Are you sure you do not mean User has_many :unprocessed_pages and
>> UnprocessedPage belongs_to :user?
>>
>> Have a look at the Rails Guide on ActiveRecord Associations for more
>> details and if you have not already done so then work right through a
>> good rails tutorial such as railstutorial.org, which is free to use
>> online, in order to get the basics of Rails.
>>
>> Colin
>>
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