Fix podcast episode validation error (#4967) [deploy]

* Started fixing podcast episode bug

* Fix the specs for create podcast episode

app/services/podcasts/create_episode.rb

@@ -25,8 +25,11 @@ module Podcasts
         Rails.logger.error("not a valid date: #{e}")
       end
       ep.body = item.body
-      ep.save!
-      ep
+      import_result = PodcastEpisode.import! [ep], on_duplicate_key_update: {
+        conflict_target: %i[media_url],
+        columns: %i[title slug subtitle summary website_url published_at reachable media_url https body]
+      }
+      PodcastEpisode.find(import_result.ids.first)
     end
 
     private

spec/services/podcasts/create_episode_spec.rb

@@ -70,4 +70,24 @@ RSpec.describe Podcasts::CreateEpisode, type: :service do
       expect(episode.reachable).to be true
     end
   end
+
+  context "when attempting to create duplicate episodes" do
+    let(:rss_item) { RSS::Parser.parse("spec/support/fixtures/podcasts/developertea.rss", false).items.first }
+    let(:item) { Podcasts::EpisodeRssItem.from_item(rss_item) }
+    let!(:episode) { create(:podcast_episode, title: "outdated title", media_url: item.enclosure_url) }
+
+    before do
+      stub_request(:head, item.enclosure_url).to_return(status: 200)
+    end
+
+    it "updates existing episode" do
+      new_episode = described_class.call(podcast.id, item)
+      expect(new_episode.id).to eq(episode.id)
+    end
+
+    it "updates columns" do
+      new_episode = described_class.call(podcast.id, item)
+      expect(new_episode.title).to eq(item.title)
+    end
+  end
 end