Thank you guys, I found ERXDatabaseContextDelegate.java in Project
Wonder, I will use this as reference.
Cheers
On Nov 14, 2006, at 11:44 AM, Chuck Hill wrote:
Project Wonder might have something. I have seen an example or two in
the past, but I don't have one that I can point you to. The method is
EODatabaseContext.Delegate.databaseContextWillOrderAdaptorOperations
Chuck
On Nov 14, 2006, at 9:33 AM, Marcos Trejo Munguia wrote:
Could you please help me with the first solution, what delegate I
need to implement?. I'm using PostgreSQL 7.4 and it only support
deferred foreign key constraints, AFAIK.
Thank you for your help!
Cheers
On Nov 14, 2006, at 10:51 AM, Chuck Hill wrote:
Operation ordering is a fair common issue with EOF. There is a
delegate that you can implement to order the actions as you want.
However, there is an easier solution if you database supports it.
Just define the constraints as "DEFERRABLE INITIALLY DEFERRED".
This will suspend validation until a COMMIT; is issued. This is my
solution of choice.
Chuck
On Nov 13, 2006, at 2:32 PM, Marcos Trejo Munguia wrote:
Hi List,
I have the following issue, I'm using an intermediate table for a
many to many relationship
(supplier<--->>supplier_product<<--->product), the primary key of
the intermediate table is composed by the foreign keys to supplier
and product, If I delete an object fetched from the intermediate
table and then I insert another object with the same supplier,
product and save I get the next exception:
com.webobjects.eoaccess.EOGeneralAdaptorException:
EvaluateExpression failed:
<com.webobjects.jdbcadaptor.PostgresqlExpression: "INSERT INTO
public.supplier_product(supplierid, productid) VALUES (?, ?)"
withBindings: 1:2(supplierid), 2:1865(productid)>:
Next exception:SQL State:23505 -- error code: 0 -- msg: ERROR:
duplicate key violates unique constraint "supplier_product_pkey"
I think that the adaptor is sending a delete and an insert but the
order is not the correct one.
Please help!
Thanks in advance.
Cheers
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