Displaying 1 result from an estimated 1 matches for "user_newscategory".
2006 Jul 03
0
Modelling Relationships as objects
...scriptions
has_many :users, :through => :subscriptions
end
class Subscription < ActiveRecord::Base
belongs_to :user
belongs_to :news_category
end
User and NewsCategory(2 tables in database) have m:n relation and hence they
would require another db table to represent the
relationship.(User_NewsCategory); now they r 2 ways to model these objects
and relations in Rails,
1. Use habtm with 2 models for 2 db tables.
2. Use has_many :through with 3 models and 3 db tables.
2nd would be of choice if we want the relationship to be converted in to an
object.
This is fine with m:n relationships, but how a...