Join the social network of Tech Nerds, increase skill rank, get work, manage projects...
 

  • difference between HAS_ONE and BELONGS_TO association in rails?

    @alka.soun
    Recommendations Offline Message

    • 0
    • 0
    • 0
    • 0
    • 0
    • 0
    • 0
    • 0
    • 781
    Comment on it

    Has_one and Belongs_to relationship sometime become confusing so the main difference can be explained with the help of example:
    1>Has_one :-

    class Department < ActiveRecord::Base
has_one: employee
end

    this means that employee table has a foreign key Department_id i.e the foreign key by the name of declaring model is present in the declared model.

    2> Belongs_to:-

    class Department < ActiveRecord::Base
belongs_to:employee
end

    this means that the Department table has a foreign key by the name of employee_id i.e. the foreign key by the name of the declared table is present in the declaring table by the name of the declared model.

    Ruby ROR RubyonRails
    Comment on it

 0 Comment(s)

Sign In
Forgot Password?
                           OR                           
Create an account !!
                           OR                           
Register

Sign up using

                           OR                           
Forgot Password
Fill out the form below and instructions to reset your password will be emailed to you:
Reset Password
Fill out the form below and reset your password: