Menu
In my app, a user has many score_cards and a score_card belongs to a user
The question is, whenever I create a new score_card, ie, ScoreCardsController.create gets called, how do I add this newly created score_card to the current_user (I'm using devise, so current_user is a valid User object).
561
In Ruby on Rails, a polymorphic association is an Active Record association that can connect a model to multiple other models. For example, we can use a single association to connect the Review model with the Event and Restaurant models, allowing us to connect a review with either an event or a restaurant.
Dependent is an option of Rails collection association declaration to cascade the delete action. The :destroy is to cause the associated object to also be destroyed when its owner is destroyed.
Association in Rails defines the relationship between models. It is also the connection between two Active Record models. To figure out the relationship between models, we have to determine the types of relationship.
Self-referential association means we create a JOIN MODEL, such as Friendship, for example, which links another model, such as User to itself, so a user can have many friends (which are other users), and a friend can be befriended by a user ( a follower and a followed).
current_user.score_cards << score_card OR
score_card.user = current_user score_card.save If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
