72e0ce1046d3a1839e66dd6dc196d734f24a445d
kent
  Thu Jun 17 14:23:40 2010 -0700
Adding a few functions to cart and trackDb to make it easier to buildcarts and trackDbs out of an existing string-valued hash.

diff --git src/hg/inc/cart.h src/hg/inc/cart.h
index 2df9559..1aaf4f2 100644
--- src/hg/inc/cart.h
+++ src/hg/inc/cart.h
@@ -44,9 +44,16 @@
  * strings to not include. oldVars is an optional hash to put in values
  * that were just overwritten by cgi-variables. */
 
-struct cart *cartNewEmpty(unsigned int userId, unsigned int sessionId,
+struct cart *cartOfNothing();
+/* Create a new, empty, cart with no real connection to the database. */
+
+struct cart *cartFromHash(struct hash *hash);
+/* Create a cart from hash */
+
+struct cart *cartFromCgiOnly(unsigned int userId, unsigned int sessionId,
 	char **exclude, struct hash *oldVars);
-/* Create a new empty cart structure without reading from the database. */
+/* Create a new cart that contains only CGI variables, nothing from the
+ * database, and no way to write back to database either. */
 
 void cartCheckout(struct cart **pCart);
 /* Save cart to database and free it up. */