Use of has_and_belongs_to_many detected RB-RL1025
Anti-pattern
Major
Prefer has_many :through to has_and_belongs_to_many. Using has_many :through allows additional attributes and validations on the join model.
Bad practice
class User < ActiveRecord::Base
has_and_belongs_to_many :groups
end
class Group < ActiveRecord::Base
has_and_belongs_to_many :users
end
Recommended
class User < ActiveRecord::Base
has_many :memberships
has_many :groups, through: :memberships
end
class Membership < ActiveRecord::Base
belongs_to :user
belongs_to :group
end
class Group < ActiveRecord::Base
has_many :memberships
has_many :users, through: :memberships
end