Merge pull request #5332 from AntonKhorev/layer-preview-backgrounds

[rails.git] / db / migrate / 022_key_constraints.rb

diff --git a/db/migrate/022_key_constraints.rb b/db/migrate/022_key_constraints.rb
index 5a6a9296fcb4bb4acc3e157fa9934890db67a1e5..e7840b4147dd62ead3cfbf93d721d017968d7f89 100644 (file)
--- a/db/migrate/022_key_constraints.rb
+++ b/db/migrate/022_key_constraints.rb
@@ -1,6 +1,4 @@
-require "migrate"
-
-class KeyConstraints < ActiveRecord::Migration
+class KeyConstraints < ActiveRecord::Migration[4.2]
   def self.up
     # Primary keys
     add_primary_key :current_node_tags, [:id, :k]