functions/Get-DbaRgWorkloadGroup.ps1

function Get-DbaRgWorkloadGroup {
<#
    .SYNOPSIS
        Gets all Resource Governor Pool objects, including both internal and external
         
    .DESCRIPTION
        Gets all Resource Governor Pool objects, including both internal and external
         
    .PARAMETER SqlInstance
        The target SQL Server instance(s)
         
    .PARAMETER SqlCredential
        Allows you to login to SQL Server using alternative credentials
         
    .PARAMETER InputObject
        Allows input to be piped from Get-DbaRgResourcePool
         
    .PARAMETER EnableException
        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
        This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
        Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
         
    .NOTES
        Tags: ResourceGovernor
        Author: Chrissy LeMaire (@cl), netnerds.net
         
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
         
    .LINK
        https://dbatools.io/Get-DbaRgWorkloadGroup
         
    .EXAMPLE
        PS C:\> Get-DbaRgWorkloadGroup -SqlInstance sql2017
         
        Gets the workload groups on sql2017
         
    .EXAMPLE
        PS C:\> Get-DbaResourceGovernor -SqlInstance sql2017 | Get-DbaRgResourcePool | Get-DbaRgWorkloadGroup
         
        Gets the workload groups on sql2017
         
#>

    [CmdletBinding()]
    param (
        [parameter(ValueFromPipeline)]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [parameter(ValueFromPipeline)]
        [Microsoft.SqlServer.Management.Smo.ResourcePool[]]$InputObject,
        [switch]$EnableException
    )

    process {
        foreach ($instance in $SqlInstance) {
            Write-Message -Level Verbose -Message "Connecting to $instance"
            $InputObject += Get-DbaRgResourcePool -SqlInstance $SqlInstance -SqlCredential $SqlCredential
        }

        foreach ($pool in $InputObject) {
            $group = $pool.WorkloadGroups
            if ($group) {
                $group | Add-Member -Force -MemberType NoteProperty -Name ComputerName -value $pool.ComputerName
                $group | Add-Member -Force -MemberType NoteProperty -Name InstanceName -value $pool.InstanceName
                $group | Add-Member -Force -MemberType NoteProperty -Name SqlInstance -value $pool.SqlInstance
                $group | Select-DefaultView -Property ComputerName, InstanceName, SqlInstance, Id, Name, ExternalResourcePoolName, GroupMaximumRequests, Importance, IsSystemObject, MaximumDegreeOfParallelism, RequestMaximumCpuTimeInSeconds, RequestMaximumMemoryGrantPercentage, RequestMemoryGrantTimeoutInSeconds
            }
        }
    }
}