class OrderItem belongs_to Item and belongs_to Order class Item has_many OrderItems and belongs_to ItemType
I have created a has_many relationship where a Food can be served at several different kinds of meals.
This is perhaps a basic question, but it\'s currently driving me nuts...Perhaps i\'m missing something, since i\'m diving so deep in the code, but the question is:
I am using Ruby on Rails 3 and I am trying to use an has_one :through association using namespaced classes. I read the official guide about association 开发者_如何学JAVAmodels but I don\'t know how to
On the application I\'m currently working on, I\'m stuck on setting up the associations between 3 models to ensure referential integrity. I have an Event model, Building model, and a Room model. The a
I have an app with Photos. Some Photos belong_to a Collection, some don\'t. I\'d like to create a scope that would sort a query such that any photo that belongs_to a Collection (ie collection_id != n
with a has_one/belongs_to relationship, i cannot seem to update nested records via mass assignment. models:
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 cre
This seems like a bug in Rails to me, but there\'s probably not much I can do about that. So how can I accomplish my expected behavior?
I want to record interactions between a group of individuals each modelled as a message with a sender and a receiver:
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