Re: vertical inheritance
Re: vertical inheritance
- Subject: Re: vertical inheritance
- From: Lachlan Deck <email@hidden>
- Date: Tue, 22 May 2007 11:28:28 +1000
I've turned on EOAdaptorDebugEnabled...
[2007-05-22 11:26:02 EST] <WorkerThread12> === Begin Internal
Transaction
[2007-05-22 11:26:02 EST] <WorkerThread12> finding primary key value
for Person
[2007-05-22 11:26:02 EST] <WorkerThread12> evaluateExpression:
<com.webobjects.jdbcadaptor.MySQLPlugIn$MySQLExpression: "SELECT PK
FROM EO_PK_TABLE WHERE NAME = 'Person' FOR UPDATE">
[2007-05-22 11:26:02 EST] <WorkerThread12> fetch canceled
[2007-05-22 11:26:02 EST] <WorkerThread12> 1 row(s) processed
[2007-05-22 11:26:02 EST] <WorkerThread12> updating primary key value
for Person
[2007-05-22 11:26:02 EST] <WorkerThread12> evaluateExpression:
<com.webobjects.jdbcadaptor.MySQLPlugIn$MySQLExpression: "UPDATE
EO_PK_TABLE SET PK = 14 WHERE NAME = 'Person' AND PK = 13">
[2007-05-22 11:26:02 EST] <WorkerThread12> === Commit Internal
Transaction
[2007-05-22 11:26:02 EST] <WorkerThread12> === Begin Internal
Transaction
[2007-05-22 11:26:02 EST] <WorkerThread12> evaluateExpression:
<com.webobjects.jdbcadaptor.MySQLPlugIn$MySQLExpression: "INSERT INTO
Person(id, lastName, code, created, modified, firstName, entityType)
VALUES (?, ?, ?, ?, ?, ?, ?)" withBindings: 1:14(NeededByEOF0),
2:"SaveMe"(lastName), 3:2(code), 4:2007-05-22 00:00:00(created),
5:2007-05-22 00:00:00(modified), 6:"Please"(firstName),
7:"Employee"(entityType)>
[2007-05-22 11:26:02 EST] <WorkerThread12> === Rollback Internal
Transaction
The message on screen says:
Could not save your changes:
Object value '2' for column 3 is not an instanceof String
Any ideas?
On 22/05/2007, at 10:46 AM, Lachlan Deck wrote:
On 22/05/2007, at 6:26 AM, Mike Schrag wrote:
Since you're currently the leading contender for the 2007 Vertical
Inheritance Award, you mind setting up a test scenario of this and
let me know if it works as expected?
Basic model:
Company[1] <-->> Person (Abstract) [2], Employee [3] <<--> Country [4]
Running in a D2W app...
I created a Company and a Country and then when trying to create an
Employee with relationship to both the company and country:
"Could not save your changes: Object value '1' for column 3 is not
an instanceof String"
Adjusting the relationships to be not flattened:
java.lang.IllegalArgumentException: unable to add join
{sourceAttribute = ; destinationAttribute = ; } to relationship
_eofInv_Employee_company in entity Company because either the
source attribute or destination attribute is a flattened attribute.
Hmm, Creating with EOModeler:
"Could not save your changes: Object value '2' for column 3 is not
an instanceof String."
Attempting to not flatten the relationship, gives the above
exception (about either a source/destination attribute being
flattened).
I've attempted
- to not include the foreign key at all in the child (this fails
when attempting to set the relationship because the companyId is
missing)
- to point the child relations source attribute to
parent.foreignKey (this fails when attempting to login with an
EORelation join error)
- to flatten both the parent foreign key and relationship into
child (this fails as for some reason it's attempting to set a
String value)
- to not include in the plist the relation or foreign key from
parent (fails
- to not include the relationship in the child (leaving the
flattened fk) this doesn't provide an option to set the relation in
D2W :-/
None work.
Does *anyone* know what does? I'm happy to supply the project/model
files. If anyone is able to figure this out it would be greatly
appreciated!
Note the relationship in the parent is a mandatory toOne to Company.
ps. Alan you mentioned that you guys 'do this' - can you offer any
help here?
Thanks...
with regards,
--
Lachlan Deck
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