FIX: Error if queued post not found while updating

app/controllers/queued_posts_controller.rb

@@ -20,6 +20,8 @@ class QueuedPostsController < ApplicationController
   def update
     qp = QueuedPost.where(id: params[:id]).first
 
+    return render_json_error I18n.t('queue.not_found') if qp.blank?
+
     update_params = params[:queued_post]
 
     qp.raw = update_params[:raw] if update_params[:raw].present?

config/locales/server.en.yml

@@ -264,6 +264,7 @@ en:
 
   queue:
     delete_reason: "Deleted via post moderation queue"
+    not_found: "Post not found or already updated."
 
   groups:
     success:

spec/controllers/queued_posts_controller_spec.rb

@@ -31,6 +31,20 @@ describe QueuedPostsController do
     let!(:user) { log_in(:moderator) }
     let(:qp) { Fabricate(:queued_post) }
 
+    context 'not found' do
+      it 'returns json error' do
+        qp.destroy!
+
+        put :update, params: {
+          id: qp.id, queued_post: { state: 'approved' }
+        }, format: :json
+
+        expect(response.status).to eq(422)
+
+        expect(eval(response.body)).to eq(described_class.new.create_errors_json(I18n.t('queue.not_found')))
+      end
+    end
+
     context 'approved' do
       it 'updates the post to approved' do