Reading ApplicationData in Powershell

Question

I've been playing with a script to get the Application Data on all publications - at the moment I just want to write it out to see what's in there.

I've confirmed several publications have tm: (Translation Manager) App Data but only get null of the Application Data below:

$pubsList = Get-TridionPublications | Select-Object Title, Id, ExtensionData;
$pubsTotal = "Total of " + $myPubs.Count + " Publications";
Write-Output $pubsTotal;
for ($i=0; $i -lt $pubsList.length; $i++) {
    [string]$title = $pubsList[$i].Title;

    if($title.StartsWith("030")){

        $pub = $pubsList[$i];

        $pub.Title;

        $appData = $core.ReadAllApplicationData($pub.Id);

        if ($appData -ne $null) {

            $appData

        }
        else {
            Write-Output "No AppData";
        }
    }
}

Answer 1

On closer investigation of the Publication Object - this exposes the App Data as the ExtensionData as follows:

$pubsList = Get-TridionPublications | Select-Object Title, Id, ExtensionData;

This gives me the Application Data as System Object.

Answer 2

I have a function that does it this way:

#Example call:     $appData2 = Get-TridionApplicationData -ObjectId $pubId -ApplicationId "tm:ItemTranslationOptions" -Verbose

here's the guts of the function code

$client = Get-TridionCoreServiceClient
$ad = $client.ReadApplicationData($ObjectId, $ApplicationId)
if ($ad -ne $null)
{
$data = [System.Text.Encoding]::UTF8.GetString($ad.Data)
return $data
}