From 1c05ca91ea78b42be26d7b97f6ea2efcd2d61314 Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Mon, 5 Jun 2017 10:59:05 +0900
Subject: [PATCH] Remove columns that are no longer being used.

---
 db/fixtures/999_topics.rb                         | 15 +++++++++++++++
 ...14820_remove_auto_close_columns_from_topics.rb |  9 +++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 db/migrate/20170605014820_remove_auto_close_columns_from_topics.rb

diff --git a/db/fixtures/999_topics.rb b/db/fixtures/999_topics.rb
index abdc372e8a..6abc06a14c 100644
--- a/db/fixtures/999_topics.rb
+++ b/db/fixtures/999_topics.rb
@@ -95,3 +95,18 @@ ColumnDropper.drop(
     STDERR.puts "Removing superflous topic columns!"
   }
 )
+
+ColumnDropper.drop(
+  table: 'topics',
+  after_migration: 'RemoveAutoCloseColumnsFromTopics',
+  columns: %w{
+    auto_close_at
+    auto_close_user_id
+    auto_close_started_at
+    auto_close_based_on_last_post
+    auto_close_hours
+  },
+  on_drop: ->(){
+    STDERR.puts "Removing superflous topic columns!"
+  }
+)
diff --git a/db/migrate/20170605014820_remove_auto_close_columns_from_topics.rb b/db/migrate/20170605014820_remove_auto_close_columns_from_topics.rb
new file mode 100644
index 0000000000..4e6c2b6700
--- /dev/null
+++ b/db/migrate/20170605014820_remove_auto_close_columns_from_topics.rb
@@ -0,0 +1,9 @@
+class RemoveAutoCloseColumnsFromTopics < ActiveRecord::Migration
+  def up
+    # Defer dropping of the columns until the new application code has been deployed.
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end