has_many association with polymorphic in ruby on rails

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rails g model member user_id:integer  invitable_id:integer invitable_type:string

class Member < ActiveRecord::Base
    belongs_to :user
    belongs_to :invitable, polymorphic: true
end


User can join many communities, groups and meeting rooms, so the has many polymorphic association will look like as:-

class User < ActiveRecord::Base
  has_many :members, dependent: :destroy
  has_many :community_members, through: :members, source: :invitable, source_type: 'Community'
  has_many :group_members, through: :members, source: :invitable, source_type: 'Group'
  has_many :meeting_rooms_members, through: :members, source: :invitable, source_type: 'MeetingRoom'
  has_many :meeting_rooms, dependent: :destroy

end
Experienced Ruby on Rails and Web Developer having 11+ years experience in Ruby & Ruby on Rails framework, TTD, Rspec. Expert on Git, SVN , Git Hook, Bitbucket. I use MySQL, MongoDB , PostgreSQL & Sqlite for Database Management. In front-end development I use HTML5 / HAML, CSS3 / SCSS, javascript / coffeescript. I also know about the deploy the applications on VPS Server i.e AWS EC2, Heroku, Ditital Ocean, Hostgator, Site5, BlueHost, AWS Load Balancing, Elastic Beanstalk, AWS S3 e.t.c ☆ Frameworks ☆ Ruby on Rails, Sinatra ☆ Database ☆ - PostgreSQL, MySQL, SQLite, - MongoDB, Amazon DynamoDB,AWS RDS. ☆ Front end Techniques ☆ - ReactJS, Angular js, Node js, Javascript, JQuery, HTML, CSS - Twitter Bootstrap, Coffeescript. Why hire me? * Master degree in Computer Science * 6 years professional experiences and 10+ projects completed * Available all day long, 7 days/24 hours * Good communication skills with fluent English * Self-motivated, fast-learner and "I can do" mind * Quality insurance and fast delivery

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