Hello, I am having a little bit problem in deleting duplicate entry of my many to many tables.
In many to many fields delete method is deleting all the occurrence of collection. Say I have (demo example): class user < ActiveRecord::Base has_and_belongs_to_many :cars end class car < ActiveRecord::Base has_and_belongs_to_many :users end users and cars are many to many relationship, I have defined my users_cars table. Now user can have repetitive car entry as relation. For example: Car: A,B,C User: U1,U2,U3 U1=[A,B,C,A,A,A,B] Which can be implemented using many to many relationship, the way I have implemented. BUT, at the time when I want to delete one of the car entries of user the problem occurs. Users.cars.delete(car) #deletes all occurrence of car Users.cars.delete_at(User.cars.find_index(video_card)) #delete_at does not exist Now how to resolve this? I have also posted at stackoverslow ( http://stackoverflow.com/questions/31507056/deleting-first-occurrence-from-many-to-many-collection-entry-at-rails). Please feel free to answer, and/or upvote. Thanks. -- Md. Sadaf Noor (@sadaf2605 <https://twitter.com/sadaf2605>) www.sadafnoor.com -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAAJ2eVrRTfxTbV%2BKr-dOwMPon-Q1%2BhCvTWu9e4cLJxv%2BwsN5Rw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
