Hi Pascal, On 2012-02-07, at 12:39 PM, Pascal Robert wrote:
> Hi guys, > > I have a problem with an editing context, look like it's a delay when I > delete objects (objects that are not yet in the database). So in short, > people create transactions (not database transactions) when they add items to > a job (just like when you add stuff in a shopping cart) and can decide to > remove a transaction from the job. When they remove an item from the job, I > do: > > rootTransaction.deleteSubTransactionsRelationship(transactionItem); Does this do the same thing as removeObjectFromBothSides... ? > editingContext().deleteObject(transactionItem); That does very little until editingContext().processRecentChanges() is called. > But when the page reload (by a Ajax call), the list of available items is not > updated. Example: > > - I have Item 1 and Item 2 available to put in the job > > - I add Item 1 to the job, it's not available to pick up, that's what I want > - I add Item 2 to the job, it's not available to pick up, that's what I want > > - I remove Item 1 from the job, so that's calling the deleteObject() and > deleteSubTransactionsRelationship() methods. Item 1 disappears from the job > (ok), but it's not available for picking up (bad). > > - I remove Item 2 from the job, and now Item 1 is available for pickup! But > Item 2 is still not available, until I do a revert on the editing context and > redo the steps. Sounds like a processRecentChanges() problem, or your code is not adding it back to the available list right away? > If I print editingContext().deletedObjects() after the call to > editingContext().deleteObject(transactionItem), I see that the item (Item 2) > I'm removing is in the array. If I print it again when I delete I ten 2, the > only object in editingContext().deletedObjects() is Item 2, Item 1 is not in > it anymore. > > So the question: is there some kind of delay when you delete an object in the > EC and just after you use a relationship (the relationship is for finding the > available items)? deleteObject() does not do much other than record that the object is to be deleted. Also, could you be calling saveChanges() at some point? -- Chuck Hill Senior Consultant / VP Development Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. http://www.global-village.net/products/practical_webobjects
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