I am looking for a shopping cart which is easy to integrate using triggers and other database-level procedures into other applications. The other applications are PostgreSQL-only.
Absolutely required features are:
- Must run on PostgreSQL
- Must have an easy-to-understand database scheme with database operations that lend themselves well to trigger-based integration solutions (whether direct replication of data or using a solution like pgq or pg_message_queue).
- Must run on Linux.
- If doesn't support shipping, must be relatively easy to modify to support shipping
- Must be easy to add support for a given payment gateway.
Really "nice to have" features are:
- Free/open source
- Shipping integration
