Merge pull request #23347 from yui-knk/explicitly_define_columns_as_i…

…nterface Explicitly define `columns` method as an interface
rails · Jan 30, 2016 · 4187699 · 4187699
2 parents 8d30ef7 + 8b9d217
commit 4187699
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -92,7 +92,9 @@ def index_exists?(table_name, column_name, options = {})
 
       # Returns an array of Column objects for the table specified by +table_name+.
       # See the concrete implementation for details on the expected parameter values.
-      def columns(table_name) end
+      def columns(table_name)
+        raise NotImplementedError, "#columns is not implemented"
+      end
 
       # Checks to see if a column exists in a given table.
       #