REFACTOR: Track manual locked user levels separately from groups

db/fixtures/009_users.rb

@@ -83,6 +83,17 @@ ColumnDropper.drop(
   }
 )
 
+ColumnDropper.drop(
+  table: 'users',
+  after_migration: 'AddTrustLevelLocksToUsers',
+  columns: %w[
+    trust_level_locked
+  ],
+  on_drop: ->() {
+    STDERR.puts 'Removing user trust_level_locked!'
+  }
+)
+
 # User for the smoke tests
 if ENV["SMOKE"] == "1"
   UserEmail.seed do |ue|

db/migrate/20171123200157_add_trust_level_locks_to_users.rb

@@ -0,0 +1,27 @@
+class AddTrustLevelLocksToUsers < ActiveRecord::Migration[5.1]
+  def up
+    add_column :users, :group_locked_trust_level, :integer, null: true
+    add_column :users, :manual_locked_trust_level, :integer, null: true
+
+    execute <<~SQL
+      UPDATE users SET manual_locked_trust_level = trust_level WHERE trust_level_locked
+    SQL
+
+    execute <<~SQL
+      UPDATE users SET group_locked_trust_level = x.tl
+      FROM users AS u
+      INNER JOIN (
+        SELECT gu.user_id, MAX(g.grant_trust_level) AS tl
+        FROM group_users AS gu
+        INNER JOIN groups AS g ON gu.group_id = g.id
+          WHERE g.grant_trust_level IS NOT NULL
+        GROUP BY gu.user_id
+      ) AS x ON x.user_id = u.id
+      WHERE users.id = u.id
+    SQL
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end