View source for HowTos:Adding or removing tagged values in your model - using the model debugger

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For background, see: [[Documentation:Using the model debugger to change the model itself|Using the model debugger to change the model itself]].

==== To find all ViewModels with a specific tag: ====
 Span.allInstances->select(s | s.TaggedValue->select(tv | tv.Tag.toUpper='MVC')->notEmpty)

==== To add the tag MVC to all ViewModels that don't already have it: ====

 Span.allInstances->select(s | s.TaggedValue->select(tv | tv.Tag.toUpper='MVC')->isEmpty)->forEach(s |
 let newtag = TaggedValue.Create in
   (
     newtag.Tag := 'MVC';
     newtag.Value := 'True';
     newtag.ModelElement := s
   )
 )
To add the tag '''Eco.BusinessDeleteRule''' to all association ends that don't already have it, set it to '''NeedNotBeEmptyNoWarning:'''
 AssociationEnd.allInstances->select(s | s.TaggedValue->select(tv | tv.Tag='Eco.BusinessDeleteRule')->isEmpty)->forEach(s | 
 let newtag = TaggedValue.Create in 
   (
     newtag.Tag := 'Eco.BusinessDeleteRule';
     newtag.Value := 'NeedNotBeEmptyNoWarning';
     newtag.ModelElement := s
   )
 )
 
{{Edited|July|12|2025}}


[[Category:Advanced-Friendly]]
[[Category:OCL (Object Constraint Language)]]
[[Category:OCL Pitfalls and Debugging (Model Debugger)]]
[[Category:Priority 70]]

[[Category:HowTos]]

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[[Category:Debugging and Troubleshooting]]