OCLOperators OnUpdate
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OnUpdate is called just before the | OnUpdate is called just before the object is saved to the database. You can do things needed on every save operation here. | ||
'''Please note!''' | '''Please note!''' | ||
You can't create new objects from within | You can't create new objects from within the OnUpdate action - that will leave the newly created object unsaved. | ||
For example, in the method body for OnUpdate set this | For example, in the method body for OnUpdate, set this OCL: | ||
if self.existing then -- This avoids touching the object if it has been deleted | if self.existing then -- This avoids touching the object if it has been deleted | ||
self.ChangeTime:=DateTime.Now; | self.ChangeTime:=DateTime.Now; | ||
| Line 12: | Line 12: | ||
false | false | ||
endif | endif | ||
See more: [[Acting on object changes]] | See more: [[Acting on object changes]], [[OCLOperators IsDirty|IsDirty]] | ||
See also: [[OCLOperators OnCreate|OnCreate]], [[OCLOperators OnDelete|OnDelete]], [[OnStateChange]] | |||
[[Category:OCLOperators]] | |||
Revision as of 08:00, 3 March 2023
OnUpdate is called just before the object is saved to the database. You can do things needed on every save operation here.
Please note!
You can't create new objects from within the OnUpdate action - that will leave the newly created object unsaved.
For example, in the method body for OnUpdate, set this OCL:
if self.existing then -- This avoids touching the object if it has been deleted self.ChangeTime:=DateTime.Now; false else false endif
See more: Acting on object changes, IsDirty
See also: OnCreate, OnDelete, OnStateChange
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