Change default to single column UI (#10847)

Keep current setting for users who were active within the last month

1 files changed, 17 insertions, 0 deletions

diff --git a/db/migrate/20190529143559_preserve_old_layout_for_existing_users.rb b/db/migrate/20190529143559_preserve_old_layout_for_existing_users.rb
new file mode 100644
index 000000000..72b7c609d
--- /dev/null
+++ b/db/migrate/20190529143559_preserve_old_layout_for_existing_users.rb
@@ -0,0 +1,17 @@
+class PreserveOldLayoutForExistingUsers < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    # Assume that currently active users are already using the layout that they
+    # want to use, therefore ensure that it is saved explicitly and not based
+    # on the to-be-changed default
+
+    User.where(User.arel_table[:current_sign_in_at].gteq(1.month.ago)).find_each do |user|
+      next if Setting.unscoped.where(thing_type: 'User', thing_id: user.id, var: 'advanced_layout').exists?
+      user.settings.advanced_layout = true
+    end
+  end
+
+  def down
+  end
+end