DEV: Reduce number of jobs enqueued.

Apply code review suggestion from
405ba00c08.

app/jobs/regular/notify_post_revision.rb

@@ -1,20 +1,23 @@
 module Jobs
   class NotifyPostRevision < Jobs::Base
     def execute(args)
-      user = User.find_by(id: args[:user_id])
+      raise Discourse::InvalidParameters.new(:user_ids) unless args[:user_ids]
-      raise Discourse::InvalidParameters.new(:user_id) unless user
 
       post_revision = PostRevision.find_by(id: args[:post_revision_id])
       raise Discourse::InvalidParameters.new(:post_revision_id) unless post_revision
 
+      ActiveRecord::Base.transaction do
+        User.where(id: args[:user_ids]).find_each do |user|
           PostActionNotifier.alerter.create_notification(
             user,
             Notification.types[:edited],
             post_revision.post,
             display_username: post_revision.user.username,
-        acting_user_id: post_revision.try(:user_id),
+            acting_user_id: post_revision&.user_id,
             revision_number: post_revision.number
           )
         end
       end
+    end
+  end
 end

app/services/post_action_notifier.rb

@@ -97,24 +97,26 @@ class PostActionNotifier
     return if post.topic.private_message?
     return if SiteSetting.disable_edit_notifications && post_revision.user_id == Discourse::SYSTEM_USER_ID
 
+    user_ids = []
+
     if post_revision.user_id != post.user_id
-      Jobs.enqueue(:notify_post_revision,
+      user_ids << post.user_id
-        user_id: post.user_id,
-        post_revision_id: post_revision.id
-      )
     end
 
     if post.wiki && post.is_first_post?
+      user_ids.concat(
         TopicUser.watching(post.topic_id)
           .where.not(user_id: post_revision.user_id)
           .where(topic: post.topic)
-        .find_each do |topic_user|
+          .pluck(:user_id)
-
-        Jobs.enqueue(:notify_post_revision,
-          user_id: topic_user.user_id,
-          post_revision_id: post_revision.id
       )
     end
+
+    if user_ids.present?
+      Jobs.enqueue(:notify_post_revision,
+        user_ids: user_ids,
+        post_revision_id: post_revision.id
+      )
     end
   end
 

notify_post_revision.rb

@@ -1,20 +0,0 @@
-module Jobs
-  class NotifyPostRevision < Jobs::Base
-    def execute(args)
-      user = User.find_by(id: args[:user_id])
-      raise Discourse::InvalidParameters.new(:user_id) unless user
-
-      post_revision = PostRevision.find_by(id: args[:post_revision_id])
-      raise Discourse::InvalidParameters.new(:post_revision_id) unless post_revision
-
-      PostActionNotifier.alerter.create_notification(
-        user,
-        Notification.types[:edited],
-        post_revision.post,
-        display_username: post_revision.user.username,
-        acting_user_id: post_revision&.user_id,
-        revision_number: post_revision.number
-      )
-    end
-  end
-end