CODEWITHSUNDEEP
ruby-on-railsruby
Decrypter
Decrypter

Reputation: 3000

Many to many relationship in the update method of controller

I am creating a rails api. I have 2 objects which have a many to many relationship. My api needs to be able to add, modify and remove ids. For example when I call the update method on objectb controller. It should accept the new list of objecta ids and persist. What is the right way to do this?

class objectb < ActiveRecord::Base
  has_and_belongs_to_many :objecta
end


class objecta < ActiveRecord::Base
  has_and_belongs_to_many :objectb
end

I was thinking of just accepting an array of ids then creating a relationship by doing objecta.objectb.create(ObjectB.find(:object_id))

What is the standard way have managing a many to many relationship in the update controller?

Upvotes: 0

Views: 88

Answers (1)

Deepak Mahakale
Deepak Mahakale

Reputation: 23661

You can achieve it this way

If you want to override 

objecta.objectbs = [ObjectB.find(:objectb_id)]

If you want to add objectb in objecta

objecta.objectbs << ObjectB.find(:objectb_id)

Upvotes: 3

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