group_removed_users associations

app/models/group.rb

@@ -28,6 +28,9 @@ class Group < ApplicationRecord
   has_many :group_accounts, inverse_of: :group, dependent: :destroy
   has_many :accounts, through: :group_accounts
 
+  has_many :group_removed_accounts, inverse_of: :group, dependent: :destroy
+  has_many :removed_accounts, source: :account, through: :group_removed_accounts
+
   validates :title, presence: true
   validates :description, presence: true
 

app/models/group_removed_account.rb

@@ -10,4 +10,6 @@
 #
 
 class GroupRemovedAccount < ApplicationRecord
+  belongs_to :group
+  belongs_to :account
 end