Setting Sharepoint File Field Attributes - sharepoint-2010

Question

In out SP site, we have a library with files. These are files associated with a user. We now cstomized the user's profiles to accept a list of files. And now, to this list of files in the user's profile, we would like to add a reference to the file so that the user doesn't have to upload again.
Current Library:
/personal/my/User Files/[filename]
So, I was wondering how to do this? The data looks like this in the new User Files field (JSON):
{
[
{
"Id":"1",
"Title":"Test",
"Url":"\/personal\/my\/User+Files\/testfile.doc"
}
]
}
I have a csv file that I iterate over. The csv file contains the user name:filename pairs.
The Id value has to be gotten from the SP instance libarary at that location for that file.
Powershell code:
$upAttribute = "UserFiles"
$profile_info = Import-Csv profiles.csv
foreach ($row in $profile_info) {
$userId = $row.user # User ID
$fullAdAccount = $adAccount += $userId
#Check to see if user profile exists
if ($profileManager.UserExists($fullAdAccount))
{
$up = $profileManager.GetUserProfile($fullAdAccount)
$upAttributeValue += $row.filename # Filename
# CODE ??????
$up.Commit()
}
}
That is the all the data that I have.
Thanks for any and all help.
Eric

Answer 1

You will first need to add the custom property to the User Profile like so:
http://www.paulgrimley.com/2011/02/adding-custom-user-profile-property-to.html
Then this should help you out:
http://get-spscripts.com/2010/07/modify-single-value-user-profile.html
#Get user profile and change the value
$up = $profileManager.GetUserProfile($adAccount)
$up[$upAttribute].Value = $upAttributeValue
$up.Commit()