Ruby on Rails Data Modeling -
i have user table next schema:
user -- id , name , age etc
and ride table next schema:
ride -- id , , etc.
i have bookings table schema: booking - id, user_id, ride_id
is there way can describe details ride from , etc
, details user made booking?
assuming have next relationship:
class user < activerecord::base has_many :bookings has_many :rides, :through => :bookings end class booking < activerecord::base belongs_to :user belongs_to :ride end class ride < activerecord::base has_many :bookings has_many :users, :through => :bookings end
you can retrieve info want.
booking = booking.find(1) booking.user.name => #return user name booking.ride.from => #return ride etc
furthermore, :through
allows access user
straight ride
, vice-versa:
user = user.find(1) user.rides => #return rides user
ruby-on-rails rails-activerecord
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