On 11 June 2012 16:03, sigdelsaroj
<sigdelsaroj-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I am new to rails and stuck on one Querying issue. Here is the
> situation.
>
> Model: Category
> class Category < ActiveRecord::Base
> has_and_belongs_to_many :postings
> has_and_belongs_to_many :volunteers
> end
>
> Model: Posting
> class Posting < ActiveRecord::Base
> has_and_belongs_to_many :categories
> end
>
> Model: Volunteer
> class Volunteer < ActiveRecord::Base
> has_and_belongs_to_many :categories
> end
>
> -------
> Now Here is the problem I am trying to solve
>
> I want to find out all the postings of the categories that the
> volunteer is interested in. The volunteer might be interested in more
> than one categories and posting might be assigned more than one
> categories.
>
> Here is the basic pseudocode
>
> vol=Volunteer.find 1
> vol_cats=vol.categories
> foreach(vol_cat in vol_cats)
> {
> postings=postings + vol_cat.postings
> }
Is that not the same problem you posted a few days ago, and then
posted the solution?
Colin
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