X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/869da5e2287989da77da203e8c60442b96e5cef3..b1ada7b9d61a4afe480971b6da616defe20a3c2b:/lib/migrate.rb

diff --git a/lib/migrate.rb b/lib/migrate.rb
index 05b3c90f2..50ba6321d 100644
--- a/lib/migrate.rb
+++ b/lib/migrate.rb
@@ -21,6 +21,11 @@ module ActiveRecord
 	  "REFERENCES #{reftbl} (#{quote_column_names(refcol || column_name)})"
       end
 
+      def remove_foreign_key(table_name, column_name, reftbl, refcol = nil)
+        execute "ALTER TABLE #{table_name} DROP " +
+          "CONSTRAINT #{table_name}_#{column_name[0]}_fkey"
+      end
+
       alias_method :old_options_include_default?, :options_include_default?
 
       def options_include_default?(options)