Created
April 6, 2016 06:53
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class Membership < ActiveRecord::Base | |
belongs_to :user | |
belongs_to :memberable, polymorphic: true | |
end | |
module Memberable | |
extend ActiveSupport::Concern | |
included do | |
has_many :memberships, as: :memberable, dependent: :destroy | |
has_many :users, through: :memberships | |
after_create :create_membership | |
end | |
def create_membership | |
Membership.create(memberable_type: self.class.name, memberable_id: self.id, user_id: self.creator_id) | |
end | |
end | |
class Project < ActiveRecord::Base | |
include Memberable | |
end | |
class Group < ActiveRecord::Base | |
include Memberable | |
end | |
class User < ActiveRecord::Base | |
has_many :memberships | |
has_many :groups, through: :memberships, source: :memberable, source_type: 'Group' | |
has_many :projects, through: :memberships, source: :memberable, source_type: 'Project' | |
end |
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