Ruby on Rails

Rails 3.1.3

I am wondering if has_and_belongs_to_many association can be used for a
single model?

More specifically, say I have a model called, Person, another model
called Meeting.

Person 1 and Person 2 share some kind of association through Meeting so
that

person1 = Person.find(...)

then,

person1.meeting returns person2.

If my understanding is correct, has_and_belongs_to_many association is
used for one model with another.

Somehow I want to find a model object from the same object.
Do you think we can do that?

soichi

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