Storing an Associative Array in a AssociativeArray

Archived
1

Hey All,

I’m trying to store an Associative Array within a Associative Array with code similar to the following:


Function SetValues() As Object

     'Create AA
     aa_StudioData = CreateObject("roAssociativeArray")
     aa_PosterItems = CreateObject("roAssociativeArray")

     'Populate Items
     aa_PosterItems.Value1 = "Foo"
     aa_PosterItems.Value2 = "Foo2"
     aa_PosterItems.Value3 = "Foo3"

     'Populate
     aa_StudioData.Count = 3
     aa_StudioData.AA = aa_PosterItems

     'Return Populated AA
     Return aa_StudioData

End Fuction

Sub GetValues()

     'Create AA
     aa_Populated = CreateObject("roAssociativeArray")
     aa_StudioDataList = CreateObject("roAssociativeArray")

     'Populate AA List
     aa_Populated = SetValues()
     aa_StudioDataList = aa_Populated.AA

     If aa_StudioDataList = invalid Then
          Print("Invalid") <<==== ALWAYS HITS
     End If

End Sub

But when I get the Associative Array back, and try to use the “.AA”, it is giving me a type of “INVALID”. Is what I’m doing possible?

Thanks
Bud

2

You can certainly assign an AA as an attribute of another AA. The code you posted works for me in 3.0 and 4.1. At the end of GetValues(), aa_StudioDataList is an AA that looks like this…

{Value1: "Foo", Value2: "Foo2", Value3: "Foo3"}
3

Thanks Chris,

One thought, do you think it would make a difference if one of the values in the AA is a “roArray”? Would that corrupt anything? One of the other items I store is a roArray (just didn’t include it with the sample code).

I did notice if I did a “For Each” loop like the following:


For Each item in aa_StudioDataList
     Print(item)
End For

It prints the item name, but how would I parse through each value in the AA to find what I’m looking for? Everything I’ve tried comes back as “INVALID”.

Any thoughts

Thanks
Bud

PS - I forgot to mention I’m running 4.1 on the Roku 2.

4

Have you tried the Lookup() function?


For Each item in aa_StudioDataList
     Print item + ":" + aa_StudioDataList.Lookup(item)
End For
5

Yeah, I get a “Type Mismatch” error.

I was thinking that I get this because the AA is INVALID when I run a check on the object as follows


If aa_StudioDataList = invalid Then
     Print("INVALID")
End If

If the compiler doesn’t recognize the aa_StuidioDataList as a AA, then trying to do the “Lookup()” would throw an error wouldn’t it?

Thanks
Bud

6

“brocker” wrote:
If the compiler doesn’t recognize the aa_StuidioDataList as a AA, then trying to do the “Lookup()” would throw an error wouldn’t it?

Actually, if aa_StuidioDataList were invalid, I’m pretty sure you’d get something like “dot operator attempted with invalid object”. If you’re getting a type mismatch, something else must be going wrong. Using the code in your OP, aa_StuidioDataList does end up being an AA and the Lookup() method works.

7

Really strange, well I guess it’s good to know that what I’m trying to do is possible, but something is amiss. I’ll go back and verify what I’m doing, I prob did some silly thing somewhere.

Thanks for your help Chris, I’ll post back with any findings or further clarifications.

Regards
Bud