Re: Reliability EOModeler
Re: Reliability EOModeler
- Subject: Re: Reliability EOModeler
- From: Chuck Hill <email@hidden>
- Date: Mon, 13 Aug 2007 09:26:34 -0700
On Aug 13, 2007, at 5:54 AM, Frank Stock wrote:
Hi All,
I have a many to many relation with a relation-table. I don't work
with propagate key, so I have a primairy key and two foreign keys
to the other tables. Those foreign keys cannot be null.
Why? If the table has only those three columns, then propagating the
PK is the right thing to do.
Sometimes we see that one of the keys, or both of the foreign keys
are zero. I am not able to reproduce that yet, but it is happening
to much. Of course when we later delete a row that has a relation
to another table with foreign key zero, we get an exception!!!
The only thing that I can think of is that something in your code is
setting it to zero. Zero is a valid PK / FK for EOF, not an
indication that the key is missing, This might also happen if the
key columns in the tables are defined with different types or have
subtle differences in the type definitions.
Chuck
I wanted to know if someone else has experienced that. How can I
get an zero? Is it because I am not working with propagate keys? My
project is very complicated and I use many different
EOEditingcontext, but just one instance for the moment.
Thanks,
Frank Stock
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