Relationship help (not a personal problem)

Howdy all. New to OO and Rails and trying to get a grip on both.

In particular at the moment I’m having trouble figuring out the
following relationship.

Say I have table/class Foo.

Users get to decide to create Foo (or update or delete Foo) based on a
user first proposing a change (class FooProposal), then users voting on
that change (class FooProposalBallot).

I was thinking something like …

class Foo < ActiveRecord::Base
has_many :foo_proposals # Foo can be changed any # of times
belongs_to :user # who proposed to create Foo in the first place

class FooProposal < ActiveRecord::Base
has_many :foo_proposal_ballots # each user can vote on a proposal once
belongs_to :user # who proposed the proposal

belongs_to :foo

^^^ this is where the majority of my confusion sets in

if the proposal is “modify” or “delete”, this relationship

is straight-forward; however if the proposal is “create” I’m not


if I should create Foo and set some flag that indicates Foo hasn’t

been approved yet


class FooProposalBallot < ActiveRecord::Base
belongs_to :foo_proposal
belongs_to :user

Any thoughts?


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