DEV: Promote historic post_deploy migrations (#28128)

This commit promotes all post_deploy migrations which existed in Discourse v3.2.0 (timestamp <= 20240112043325)

plugins/chat/db/migrate/20230411023340_update_thread_reply_counts.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class UpdateThreadReplyCounts < ActiveRecord::Migration[7.0]
+  def up
+    DB.exec <<~SQL
+      UPDATE chat_threads threads
+      SET replies_count = subquery.replies_count
+      FROM (
+        SELECT COUNT(*) - 1 AS replies_count, thread_id
+        FROM chat_messages
+        WHERE chat_messages.deleted_at IS NULL AND thread_id IS NOT NULL
+        GROUP BY thread_id
+      ) subquery
+      WHERE threads.id = subquery.thread_id
+      AND subquery.replies_count != threads.replies_count
+    SQL
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end

plugins/chat/db/migrate/20230710040640_backfill_chat_channel_and_thread_last_message_ids_post_migrate.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class BackfillChatChannelAndThreadLastMessageIdsPostMigrate < ActiveRecord::Migration[7.0]
+  execute <<-SQL
+    UPDATE chat_channels
+    SET last_message_id = (
+      SELECT cm.id
+      FROM chat_messages cm
+      LEFT JOIN chat_threads ON chat_threads.original_message_id = cm.id
+      WHERE cm.chat_channel_id = chat_channels.id
+        AND cm.deleted_at IS NULL
+        AND (cm.thread_id IS NULL OR chat_threads.id IS NOT NULL)
+      ORDER BY cm.created_at DESC, cm.id DESC
+      LIMIT 1
+    );
+  SQL
+
+  execute <<-SQL
+    UPDATE chat_threads
+    SET last_message_id = (
+      SELECT cm.id
+      FROM chat_messages cm
+      WHERE cm.thread_id = chat_threads.id
+        AND cm.deleted_at IS NULL
+      ORDER BY cm.created_at DESC, cm.id DESC
+      LIMIT 1
+    );
+  SQL
+end

plugins/chat/db/migrate/20231214180002_update_relationship_between_chat_mentions_and_notifications_post_migrate.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+class UpdateRelationshipBetweenChatMentionsAndNotificationsPostMigrate < ActiveRecord::Migration[
+  7.0
+]
+  disable_ddl_transaction!
+  BATCH_SIZE = 5000
+
+  def up
+    begin
+      inserted_count = DB.exec(<<~SQL, batch_size: BATCH_SIZE)
+        INSERT INTO chat_mention_notifications(chat_mention_id, notification_id)
+        SELECT cm.id, cm.notification_id
+        FROM chat_mentions cm
+        LEFT JOIN chat_mention_notifications cmn ON cmn.chat_mention_id = cm.id
+        WHERE cm.notification_id IS NOT NULL and cmn.chat_mention_id IS NULL
+        LIMIT :batch_size;
+      SQL
+    end while inserted_count > 0
+  end
+
+  def down
+  end
+end

plugins/chat/db/migrate/20231227160004_set_type_and_target_id_on_chat_mentions_post_migrate.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+class SetTypeAndTargetIdOnChatMentionsPostMigrate < ActiveRecord::Migration[7.0]
+  disable_ddl_transaction!
+  BATCH_SIZE = 5000
+
+  def up
+    # we're setting it again in post-migration
+    # in case some mentions have been created after we run
+    # this query the first time in the regular migration
+    begin
+      updated_count = DB.exec(<<~SQL, batch_size: BATCH_SIZE)
+        WITH cte AS (SELECT id, user_id
+                     FROM chat_mentions
+                     WHERE type IS NULL AND target_id IS NULL
+                     LIMIT :batch_size)
+        UPDATE chat_mentions
+        SET type = 'Chat::UserMention', target_id = cte.user_id
+        FROM cte
+        WHERE chat_mentions.id = cte.id;
+      SQL
+    end while updated_count > 0
+  end
+
+  def down
+  end
+end

plugins/chat/db/migrate/20231227160005_make_type_on_chat_mentions_non_nullable.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class MakeTypeOnChatMentionsNonNullable < ActiveRecord::Migration[7.0]
+  def up
+    change_column_null :chat_mentions, :type, false
+  end
+
+  def down
+    change_column_null :chat_mentions, :type, true
+  end
+end