Documentation:OCLOperators OnUpdate: Difference between revisions

OCLOperators OnUpdate

Revision as of 07:17, 14 April 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

This page was edited 77 days ago on 02/10/2024. What links here

@@ Line 1: / Line 1: @@
 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 the OnUpdate action - that will leave the newly created object unsaved.
-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:
@@ Line 16: / Line 14: @@
 See also: [[OCLOperators OnCreate|OnCreate]], [[OCLOperators OnDelete|OnDelete]], [[OnStateChange]]
 [[Category:OCLOperators]]
+[[Category:OCL General Operators]]