The core of the issue is you are not using an identity map (and I'm
not sure an identity map would handle one-to-many or many-to-many
situations).

Without an identity map, when you have two objects in memory that
represent the same object in the DB, and one of those objects changes
the DB, the other object is unaware.
You must reload the other object to get changes from the DB.

The reason size and count are performing differently is size does the
size of the children array (either grabs the children or assumes the
current cache for the object is up-to-date), and count performs a SQL
query that has the DB count the children, so the children data does
not need to be sent, just the final answer.

--

You received this message because you are subscribed to the Google Groups 
"DataMapper" group.
To post to this group, send email to datamap...@googlegroups.com.
To unsubscribe from this group, send email to 
datamapper+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/datamapper?hl=en.


Reply via email to