Iterating through all properties of an object
Is there a better way to iterate through all properties of an object than the following? Perhaps without needing to open a definition of the class but directly against the object?
SAMPLES>set t=##class(HoleFoods.Transaction).%OpenId(1)
SAMPLES>set def=##class(%Dictionary.ClassDefinition).%OpenId("HoleFoods.Transaction")
SAMPLES>for i=1:1:def.Properties.Count() { w def.Properties.GetAt(i).Name_":"_$property(t,def.Properties.GetAt(i).Name),! }
Actual:0
AmountOfSale:4.95
Channel:2
Comment:
DateOfSale:62373
Discount:0
Latitude:
Longitude:
Outlet:35@HoleFoods.Outlet
Product:37@HoleFoods.Product
TargetAmount:
UnitsSold:1
ZipCode:
Comments
For debugging or programmatic purposes? If debugging / interactive you can just zwrite the variable to see the properties.
For the programmatic purpose of comparing two instances of the same object (I was hoping to keep the use case separate from this post in order to get a good generic example of iterating through properties of an object - but I can go into more details if needed).
Look at this article here. It helps you to write some method in this class for this task.
Better way - %Library.CompiledClass instead of %Dictionary.ClassDefinition. Cache creates objects by %Library.CompiledClass which ar image of %Dictionary.ClassDefinition on compilation moment.
A couple ideas
If it's for debugging I use $System .OBJ.Dump(oRef)
If it's in application code I ran across something that looked like
While prop '= "" {
// Use global lookup instead of %Dictionary.Class query so users don't need privileges on that table
Set tPropClass = $$$comMemberKeyGet(sourceClass,$$$cCLASSproperty,prop,$$$cPROPtype)
Another relevant discussion.