Hi All!
I am having an issue with local instancing an EO and I would like some help
understanding the problem. I found an old thread started by Kieran Kelleher
where he was having similar issues. Mike Schrag had mentioned that EOF couldn't
tell if a new object localInstanced from another EC had later been saved in the
other EC which could result in collisions so it erred on the side of caution.
So I am probably using the method inappropriately. Hopefully someone will point
out the problem and offer the correct way.
I've noticed that when I localInstance a new EO (not yet saved to the database)
both the WebObjects and WOnder versions return null for the EO. It seems odd
for the method to return null if it is a new method. I wrote a customized
version that detects if it is a new EO and just returns the original EO. I've
been using it for quite some time now and it at least _seemed_ to work better.
My use cases must have avoided conflicts.
However, I've recently noticed problems. They may have been there before. I did
recently update my computer (OSX 10.10.3) and dev environment to the latest
WOnder (6.1.4-SNAPSHOT), Java 8 (1.8.0_45), Eclipse (4.4.2) with matching
WOLips.
I'm creating a new EC because many of the objects in the original EC are
disposable and are not intended to be written to the DB, even if they happen to
change. The problem is because of passing the original EO to the new EC instead
of NULL that would normally be returned but the relationships cannot be NULL. I
wrote a clone method for some of the objects for testing but it got very
complex very fast because of deeper objects in the relationship. As you can see
from my debugging output, all required fields (*'s) are set and relationships
are set.
This group is the objects in the old (original) EC and the original Invoice
that has not been saved yet but it has had an oid assigned. It also has a
to-many relationship to new ProductItem objects.
OLD EC
EditingContext: ERXEC@2d334040
Registered [375]: List omitted
Inserted [ 5]: [Invoice PK: 250], [ProductItem PK: 74],
[ProductItemPayment PK: 61],
[ShoppingCart PK: 44], [ShoppingCartProduct PK:
44]
Updated [ 3]: <Account pk:167>, <Practice pk:1>, <User pk:2>
Deleted [ 0]: EMPTY
OLD Invoice:
Invoice(5bdf1c53) :
globalID = <Invoice PK: 250> {
pending }
editingContext = ERXEC@2d334040
Added to EC
Attributes
approvedDeposit = NULL
dateRecordCreated = Wednesday July 15, 2015 @
03:19 PM *
dateRecordModified = Wednesday July 15, 2015 @
03:19 PM *
invoiceDate = Wednesday July 15, 2015 @
03:19 PM *
invoiceDiscount = NULL
invoiceNumber = IJD20150715151938381 *
isActive = true *
taxRate = 0.07 *
totalFees = 0.0 *
totalNonTaxable = 0.0 *
totalTaxable = 0.0 *
version = 1 *
To-One Relationships
toAccount = <Account PK: 167> *
toCheckListPostOp = NULL
toCheckListPreOp = NULL
toCheckListSurgery = NULL
toCoordinator = <User PK: 2> ( Jane Doe )
*
toInvoiceStatus = <InvoiceStatus PK: 1> (
Open ) *
toInvoiceType = <InvoiceType PK: 2> (
Invoice ) *
toPractice = <Practice PK: 1> (
DEFAULT_PRACTICE ) *
toSurgeryRequest = NULL
To-Many Relationships
toProductItems [ 1 ]
1) eoObj = <ProductItem PK: 74> { pending }
toRequestDetails
No Records
toServiceItems
No Records
This group is the objects in the new EC and the cloned Invoice that has not
been saved yet but it has had an oid assigned. It also has a to-many
relationship to new ProductItem objects. Note the oid has increased and unique
attributes have been adjusted. When I try to save, it fails because the objects
associated with ProductItems have a relationship in a different EC (and retain
their original oids).
NEW Invoice:
Invoice(6371d408) :
globalID = <Invoice PK: 251> {
pending }
editingContext = ERXEC@1c741963
Added to EC, Updated in EC
Attributes
approvedDeposit = NULL
dateRecordCreated = Wednesday July 15, 2015 @
03:30 PM *
dateRecordModified = Wednesday July 15, 2015 @
03:30 PM *
invoiceDate = Wednesday July 15, 2015 @
03:19 PM *
invoiceDiscount = NULL
invoiceNumber = IJD20150715151938952 *
isActive = true *
taxRate = 0.07 *
totalFees = 0.0 *
totalNonTaxable = 0.0 *
totalTaxable = 0.0 *
version = 1 *
To-One Relationships
toAccount = <Account PK: 167> *
toCheckListPostOp = NULL
toCheckListPreOp = NULL
toCheckListSurgery = NULL
toCoordinator = <User PK: 2> ( Jane Doe )
*
toInvoiceStatus = <InvoiceStatus PK: 1> (
Open ) *
toInvoiceType = <InvoiceType PK: 2> (
Invoice ) *
toPractice = <Practice PK: 1> (
DEFAULT_PRACTICE ) *
toSurgeryRequest = NULL
To-Many Relationships
toProductItems [ 1 ]
1) eoObj = <ProductItem PK: 74> { pending }
toRequestDetails
No Records
toServiceItems
No Records
NEW ProductItems:
(
ProductItem(1695d9bc) :
globalID = <ProductItem PK: 74> {
pending }
editingContext = ERXEC@2d334040
Added to EC, Updated in EC
Attributes
dateRecordCreated = Wednesday July 15, 2015 @
03:15 PM *
dateRecordModified = Wednesday July 15, 2015 @
03:15 PM *
discountAmount = 0.0 *
isActive = true *
unitAmount = 100.0 *
unitQuantity = 1 *
version = 1 *
To-One Relationships
toAuthorizedBy = NULL
toInvoice = <Invoice PK: 250> {
pending }
toProduct = <Product PK: 3> (
Abdominoplasty Garment ) *
To-Many Relationships
toGiftCards
No Records
toPayments
No Records
toProductItemPayments [ 1 ]
1) eoObj = <ProductItemPayment PK: 61> { pending }
toShoppingCartProducts [ 1 ]
1) eoObj = <ShoppingCartProduct PK: 44> { pending }
)
NEW EC
EditingContext: ERXEC@1c741963
Registered [179]: List omitted
Inserted [ 1]: [Invoice PK: 251]
Updated [ 3]: <Account pk:167>, <Practice pk:1>,
<User pk:2>
Deleted [ 0]: EMPTY
Is there a correct way to "localInstance" an unsaved EO? Or do I need to
restructure the code and perhaps use nested ECs?
Thanks,
Roger
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