Perspective dynamic props path

[jsteward]

I know this must be easy to do, but I just can’t find or figure out the syntax. I’m looking for an equivalent function or method in perspective to build a dynamic props path so that I can get the value through scripting.

This is the hard coded props path I want
self.getSibling(“Table”).props.selection.data[0].OrderID

I want to be able to use a variable in the path.

I thought this would work but it doesn’t.
self.getSibling(“Table”).props.selection.data[0][SomeVariable]

Is there a way to construct the path as a string and then get the value of the property such as
self.getSibling(“Table”).getValue(“props.selection.data[0].”+ SomeVariable) ?

[cmallonee]

It depends on the structure of the data object of the table, but something like the following should work for you:

someVariable = 'OrderId'
self.getSibling("Table").props.data[0][someVariable]

You just need to make sure the table’s data structure doesn’t change, and that the key you supply is a String.

[pturmel]

If someVariable represents a property name, you want to use python’s built-in getattr() function to perform the retrieval. Something like this:

getattr(self.getSibling(“Table”).props.selection.data[0], SomeVariable)

In python, bracket syntax only works with subscript lookup in lists/arrays, or key lookup in dictionaries. The dot operator only accepts a fixed string in the code for the lookup of properties.

[jsteward]

I knew there had to be a simple way to do that. Exactly what I was looking for.

Both methods worked by the way. Not sure why the first time I tried
“self.getSibling(“Table”).props.data[0][someVariable]” it didn’t work.

Thanks!

[pturmel]

@jsteward

Both methods worked by the way.

Bracket syntax for a property must be a Perspective data type enhancement. Nice.

[cmallonee]

One of the Devs recently modified the wrapper objects to behave more like Python datatypes, so you access them (for the most part) as you would a python datatype. This prevents users from encountering instances where they get an Array (or ArrayList?) object but can’t iterate through it with a python for loop because it isn’t a list, or instances where an ObjectWrapper had to be used as a Java object. You can thank @PGriffith.