Copy all view groups and their contents from child sites up to the parent site

Copy-ViewGroups.ps1

#Requires -Modules MilestonePSTools, MilestonePSTools.ViewGroups

<#

This sample shows how you could copy all view groups defined in child sites within a Milestone Federated Hierarchy up to the parent
site. This way local users can login to their child-site directly, and create/use views defined there, and users logging in to the
parent site can get a copy of those same views.

With only a little more effort, this could be setup as a scheduled task to run daily to keep views at the parent site in sync with
the child sites.

Note: The term 'Master' will be replaced in the next version of MilestonePSTools to be pushed to PSGallery.

#>

Select-Site -MasterSite
$mainSite = Get-Site
foreach ($site in Get-Site -ListAvailable) {
    if ($site.FQID.ObjectId -eq $mainSite.FQID.ObjectId) {
        continue
    }

    # Collect all viewgroup definitions from child site
    $site | Select-Site
    $viewGroups = @{}
    foreach ($viewGroup in Get-ViewGroup) {
        if ($viewGroups.ContainsKey($viewGroup.Name)) {
            Write-Warning "Skipping duplicate View Group '$($viewGroup.Name)' on site $($site.Name)."
            continue
        }
        $viewGroups.$($viewGroup.Name) = $viewGroup | Get-ViewGroupXml
    }

    # Push viewgroup definitions to parent site
    Select-Site -MasterSite
    foreach ($viewGroupName in $viewGroups.Keys) {
        $viewGroup = Get-ViewGroup -Name $viewGroupName -ErrorAction SilentlyContinue
        if ($null -eq $viewGroup) {
            $viewGroup = Add-ViewGroup -Name $viewGroupName
        }
        $viewGroup | Set-ViewGroupXml -Xml $viewGroups.$viewGroupName
    }
}