Models -> has_many -> Twice

So I have a somewhat confusing relationship here, between a Note, Group, and User. And I ended up with has_many twice in my model. But I'm开发者_如何转开发 currently focused on the Note & Group relationship.

Background: A Group can have a note. A User can also have a note. Which is why my Note is polymorphic. However, I also created a join model called a Tag, so that a Note can belong to multiple groups. In my code though, I ended up with multiple 'has_many :notes'. See all of my code below. What would be the proper way to do something like this?

Thanks in advance!

note.rb

belongs_to :notable, :polymorphic => true
has_many :tags
has_many :groups, :through => :tags

user.rb

has_many :notes, :as => :notable

group.rb

has_many :notes, :as => :notable
has_many :tags
has_many :notes, :through => :tags

tag.rb

belongs_to :note
belongs_to :group

You just need to give it a different name.

class Group
  has_many :notes, :as => :notable
  has_many :tags
  has_many :tagged_notes, :class_name => 'Note', :through => :tags
end

If you only want a single note for the :as => :notable part (this wasn't very clear in your question), you could just do this:

class Group
  has_one :note, :as => :notable
  has_many :tags
  has_many :notes, :through => :tags
end

The names just have to be different. Although with note vs. notes it might not be very clear what the distinction is in other parts of your code.