add comment about why we have not null set on create_id

diff --git a/lib/DBIx/Class/Schema/Journal/DB/AuditLog.pm b/lib/DBIx/Class/Schema/Journal/DB/AuditLog.pm
index 472d94b..70fe818 100644 (file)
--- a/lib/DBIx/Class/Schema/Journal/DB/AuditLog.pm
+++ b/lib/DBIx/Class/Schema/Journal/DB/AuditLog.pm
@@ -7,6 +7,10 @@ sub journal_define_table {
 
     $class->table($source->name . '_audit_log');
 
+    # the create_id is the id of first insertion of the row
+    # so we always know where to roll back to
+    # and presumably should be supplied on every insert
+
     $class->add_columns(
         create_id => {
             data_type => 'integer',