refactor, move `column_for` to `AbstractAdapter` for better reuse.

1 files changed, 7 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index 78343cf4f5..116b01814e 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -390,6 +390,13 @@ module ActiveRecord
       def without_prepared_statement?(binds)
         !@prepared_statements || binds.empty?
       end
+
+      def column_for(table_name, column_name) # :nodoc:
+        unless column = columns(table_name).detect { |c| c.name == column_name.to_s }
+          raise ActiveRecordError, "No such column: #{table_name}.#{column_name}"
+        end
+        column
+      end
     end
   end
 end