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From John Armstrong <siber...@gmail.com>
Subject Re: AUTO_PK_SUPPORT, mysql and join tables
Date Sun, 28 Mar 2010 15:56:37 GMT
Hi Andrus,
   I downgraded to 3.0M6 from RC2 a few weeks ago to troubleshoot some
problems. I tested this in both M6 and RC2 with the same results.

  I have a few other join tables that are similar and exhibit the same
behavior.
Tx!
J

  Tthe flattened relationship is defined as :

<db-relationship name="userprojectsArray" source="PROJECT"
target="USERPROJECTS" toMany="true">
<db-attribute-pair source="ID" target="PROJECT"/>
</db-relationship>

<db-relationship name="userprojectsArray" source="USER"
target="USERPROJECTS" toMany="true">
<db-attribute-pair source="ID" target="PGUSER"/>
</db-relationship>

<db-relationship name="toProject" source="USERPROJECTS" target="PROJECT"
toMany="false">
<db-attribute-pair source="PROJECT" target="ID"/>
</db-relationship>
<db-relationship name="toUser" source="USERPROJECTS" target="USER"
toMany="false">
<db-attribute-pair source="PGUSER" target="ID"/>


On Sun, Mar 28, 2010 at 7:36 AM, Andrus Adamchik <andrus@objectstyle.org>wrote:

> Odd. Join table with its own (non-propagated) PK should work the same as
> any other table. Which vesrion of Cayenne is this and are you using
> flattened relationships across the join table?
>
> Andrus
>
>
> On Mar 28, 2010, at 9:43 AM, John Armstrong wrote:
>
>  Hi all,
>>  I am using mysql with all database generated pks and auto_increment.
>>
>>  This works fine for all tables except join tables. When accessing a join
>> table cayenne tries to access the AUTO_PK_TABLE rather then relying on the
>> auto_increment.
>>
>> My join tables are configured identically :
>>
>> <db-entity name="USERPROJECTS" catalog="pgi">
>> <db-attribute name="CREATIONDATE" type="TIMESTAMP" length="19"/>
>> <db-attribute name="ID" type="INTEGER" isPrimaryKey="true"
>> isGenerated="true" isMandatory="true" length="10"/>
>> <db-attribute name="PGUSER" type="INTEGER" length="10"/>
>> <db-attribute name="PROJECT" type="INTEGER" length="10"/>
>> </db-entity>
>> <obj-entity name="Userprojects" className="com.pgi.common.Userprojects"
>> dbEntityName="USERPROJECTS">
>> <obj-attribute name="creationdate" type="java.util.Date"
>> db-attribute-path="CREATIONDATE"/>
>> <obj-attribute name="id" type="java.lang.Integer" db-attribute-path="ID"/>
>> </obj-entity>
>>
>> Any ideas?
>>
>> John-
>>
>
>

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