Add: #586 保留中のリモートアカウントからのフォローが飛んできた場合に記録する (#590)

* Add: #586 保留中のリモートアカウントからのフォローが飛んできた場合に記録する

* 本家に戻す処理を修正

* Fix test

* Fix worker link

* Fix test

* リモートアカウント拒否時に既存のリクエストを削除

app/models/account.rb

@@ -300,10 +300,13 @@ class Account < ApplicationRecord
   def approve_remote!
     update!(remote_pending: false)
     unsuspend!
+    EnableFollowRequestsWorker.perform_async(id)
   end
 
   def reject_remote!
     update!(remote_pending: false, suspension_origin: :local)
+    pending_follow_requests.destroy_all
+    suspend!
   end
 
   def sensitized?

app/models/concerns/account/interactions.rb

@@ -74,6 +74,7 @@ module Account::Interactions
   included do
     # Follow relations
     has_many :follow_requests, dependent: :destroy
+    has_many :pending_follow_requests, dependent: :destroy
 
     with_options class_name: 'Follow', dependent: :destroy do
       has_many :active_relationships,  foreign_key: 'account_id', inverse_of: :account

app/models/pending_follow_request.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: pending_follow_requests
+#
+#  id                :bigint(8)        not null, primary key
+#  account_id        :bigint(8)        not null
+#  target_account_id :bigint(8)        not null
+#  uri               :string           not null
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#
+class PendingFollowRequest < ApplicationRecord
+  belongs_to :account
+  belongs_to :target_account, class_name: 'Account'
+
+  validates :account_id, uniqueness: { scope: :target_account_id }
+end