Using Caché Objects - InterSystems Documentation

Using Objects with Caché ObjectScript
where oref is the OREF of the specific object to associate the data with,PropertyName is the
name of the list property, and data is the actual data. For example, you can change a person's
favorite colors from “red” , “blue” , and “green” to “red” , “yellow” , and “green” using
the following code:
Do person.FavoriteColors.SetAt("yellow",2)
where person is the OREF of the Person object.
You can insert data into slot n using the following syntax:
Do oref.PropertyName.InsertAt(data,n)
where oref is the OREF of the specific object to associate the data with,PropertyName is the
name of the list property, and data is the actual data. Again, insert a new list item increments
the value of all previously-existing list items. For example, you can change a person's favorite
colors from “red” , “blue” , and “green” to “red” , “yellow” , “blue” , and “green” using
the following code:
Do person.FavoriteColors.InsertAt("yellow",2)
where person is the OREF of the Person object.
10.4.3.2 Populating Lists of Embedded Objects
You can populate a list of objects in several ways. You can create a new object, populate it,
then add it to the end of the list using the following syntax:
Do oref.PropertyName.Insert(ItemOref)
where oref is the OREF of the specific object to associate the data with, PropertyName is the
name of the list property, and ItemOref is the OREF of the object. For example, you can add
a new vaccination record to a Patient object using the following code:
Do pat.Vaccination.Insert(vac)
where pat is the OREF of the Patient object and vac is the OREF of the Vaccination object.
You can create a new object, populate it, then change an existing slot n using the following
syntax:
Do oref.PropertyName.SetAt(ItemOref,n)
where oref is the OREF of the specific object to associate the data with, PropertyName is the
name of the list property, and ItemOref is the OREF of the object. For example, you can
76 Using Caché Objects