CODEWITHSUNDEEP
ruby-on-railsactiverecord
user1011792
user1011792

Reputation:

Strange after_create behavior

I have some rails Model Parent that has_many Child, and I have this after_create callback in Parent class

has_many :children
after_create :add_children

def add_children
 self.childlren = fetch_some_children
end

However, this doesn't do anything and the children fetched from fetch_some_children didn't update their foreign keys. Now if I changed the callback to be before_create instead of after_create, then it works and children foreign keys are updated, so why does this happen?

Edit: I had some other complex piece of code that resulted in this problem, so it's now fixed.

Upvotes: 0

Views: 45

Answers (1)

Nermin
Nermin

Reputation: 6100

def add_children
 self.childlren = fetch_some_children
 self.save # to persist the data
end

When you use before_create it sets children and it gets saved, after_create as it said it is already created, you have to persist your data

Upvotes: 2

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