Using Caché Objects - InterSystems Documentation

Using Objects with Caché ObjectScript
Do oref.PropertyName.SetObjectAt(ElementOid,key)
where oref is the OREF of the specific object to associate the data with, PropertyName is the
name of the list property, ElementOid is the OID of the new element, and key is the key
associated with the new element. For example, to add a dog accessed by name to an array of
pets in a Person object, use the following code:
Do per.Pets.SetObjectAt(DogOid,"Rover")
where per is the OREF of the Person object and “Rover” is the key used to access the dog
with the OIDDogOid.
10.4.4.4 Modifying Properties of Objects in Arrays
Once an object has been added to an array, you can modify its properties as follows:
Set oref.PropertyName.GetAt(key).ArrayPropertyName = data
where oref is the OREF of the object containing the list, PropertyName is the name of the
array property, key identifies the object to update, ArrayPropertyName is the property to
update, and data is the actual data associated with the property. For example, to set the type
of Vaccination given to a patient on 02/23/98, use the following code:
Set pat.Vaccination.GetAt("02/23/98").Type = "Polio"
where pat is the OREF of the Patient object given a Polio vaccination on 2/23/98.
10.4.5 Modifying Stream Properties
To populate a stream property, use the following syntax:
Do oref.PropertyName.Write(data)
where oref is the OREF of the object containing the stream, PropertyName is the name of
the stream property, Write is a method of the Stream class, and data is the actual data associated
with the property. For example, to add a paragraph to a Note property of a Visit object,
use the following code:
Do visit.Note.Write(note)
where visit is the OREF of the Visit object and note is the data entered by the doctor at the
time of the visit.
80 Using Caché Objects