FEATURE: Send the user a notification when their post is approved

app/assets/javascripts/discourse-common/lib/icon-library.js.es6

@@ -34,7 +34,8 @@ const REPLACEMENTS = {
   "notification.granted_badge": "certificate",
   "notification.topic_reminder": "far-clock",
   "notification.watching_first_post": "far-dot-circle",
-  "notification.group_message_summary": "group"
+  "notification.group_message_summary": "group",
+  "notification.post_approved": "check"
 };
 
 // TODO: use lib/svg_sprite/fa4-renames.json here

app/models/notification.rb

@@ -61,6 +61,7 @@ class Notification < ActiveRecord::Base
                         watching_first_post: 17,
                         topic_reminder: 18,
                         liked_consolidated: 19,
+                        post_approved: 20
                        )
   end
 
@@ -124,10 +125,10 @@ class Notification < ActiveRecord::Base
   # Be wary of calling this frequently. O(n) JSON parsing can suck.
   def data_hash
     @data_hash ||= begin
-      return nil if data.blank?
+      return {} if data.blank?
 
       parsed = JSON.parse(data)
-      return nil if parsed.blank?
+      return {} if parsed.blank?
 
       parsed.with_indifferent_access
     end

app/models/reviewable_queued_post.rb

@@ -72,6 +72,14 @@ class ReviewableQueuedPost < Reviewable
     # Backwards compatibility, new code should listen for `reviewable_transitioned_to`
     DiscourseEvent.trigger(:approved_post, self, created_post)
 
+    Notification.create!(
+      notification_type: Notification.types[:post_approved],
+      user_id: created_by.id,
+      data: {},
+      topic_id: created_post.topic_id,
+      post_number: created_post.post_number
+    )
+
     create_result(:success, :approved) { |result| result.created_post = created_post }
   end
 

config/locales/client.en.yml

@@ -1638,6 +1638,7 @@ en:
       none: "Unable to load notifications at this time."
       empty: "No notifications found."
       more: "view older notifications"
+      post_approved: "Your post was approved"
       total_flagged: "total flagged posts"
       mentioned: "<span>{{username}}</span> {{description}}"
       group_mentioned: "<span>{{username}}</span> {{description}}"

spec/models/reviewable_queued_post_spec.rb

@@ -57,6 +57,12 @@ RSpec.describe ReviewableQueuedPost, type: :model do
           expect(Topic.count).to eq(topic_count)
           expect(Post.count).to eq(post_count + 1)
 
+          notifications = Notification.where(
+            user: reviewable.created_by,
+            notification_type: Notification.types[:post_approved]
+          )
+          expect(notifications).to be_present
+
           # We can't approve twice
           expect(-> { reviewable.perform(moderator, :approve) }).to raise_error(Reviewable::InvalidAction)
         end