Using association's attributes in definition

[Phil]

I need to define a factory that uses an attribute from it's
association, but I keep getting a whiny nil error:

Factory.define(:comment) do |c|
c.article { |article| article.association(:article) }
c.article_author_name { c.article.author.name }
end

At this point it complains article is nil, so I'm calling author on
nil. Is there any way to do this?

[Nathan Sutton]

Try this:

Factory.define(:comment) do |c|
c.association :article
c.article_author_name {|o| o.article.author.name}
end

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[Phil]

I figured out my problem. When you define the association in a parent
factory, for whatever reason you can't call attributes in the child
factory. (ie the article association is defined in a parent factory,
in the child factory you can't use the article.author.name)

I ended up having to redefine the association in the child factory.

[Nathan Sutton]

On Tue, Nov 24, 2009 at 3:25 PM, Phil <phuib...@gmail.com> wrote:
> I ended up having to redefine the association in the child factory.

That's pretty strange. You could also use one of the fg callbacks to
grab the value of the association, if you wanted to.

[Doug]

I came across a similar scenario: for an Occurence, both Event and
Venue must belong to the same Organization.

The following worked for me:

Factory.define :event do |f|
f.association :organization
f.name { "Event: #{Faker::Lorem.words(3).join(" ").titleize}" }
end

Factory.define :venue do |f|
f.association :organization
f.name { "Venue: #{Faker::Lorem.words(2).join(" ").titleize}" }
end

Factory.define :occurence do |f|
f.event { |o| o.association(:event) }
f.venue { |o| o.association(:venue, :organization =>
o.event.organization) }
...
end

Your tip helped - thanks Nathan.

On Nov 27, 4:02 am, Nathan Sutton <nathan.sut...@gmail.com> wrote: