Public/New-AccessLevel.ps1

<#
    .SYNOPSIS
    Adds a new accesslevel.

    .DESCRIPTION
    Adds a new accesslevel to the database. If the result return null, try the parameter "-Verbose" to get more details.
    
    .EXAMPLE
    
    .LINK
    https://github.com/erwindevreugd/PSDataConduIT
#>

function New-AccessLevel
{
    [CmdletBinding()]
    param
    (
        [Parameter(
            Position=0, 
            Mandatory=$false, 
            ValueFromPipelineByPropertyName=$true,
            HelpMessage='The name of the server where the DataConduIT service is running or localhost')]
        [string]$Server = $Script:Server,
        
        [Parameter(
            Position=1,
            Mandatory=$false, 
            ValueFromPipelineByPropertyName=$true,
            HelpMessage='The credentials used to authenticate the user to the DataConduIT service')]
        [PSCredential]$Credential = $Script:Credential,

        [ValidateLength(1, 255)]
        [Parameter(
            Mandatory=$true, 
            ValueFromPipelineByPropertyName=$true,
            HelpMessage='The name of the accesslevel')]
        [string]$Name,

        [Parameter(
            Mandatory=$false, 
            ValueFromPipelineByPropertyName=$true,
            HelpMessage='The segment id to which to add the new accesslevel')]
        [int]$SegmentID
    )

    process {

        $parameters = @{
            ComputerName=$Server;
            Namespace=$Script:OnGuardNamespace;
            Class="Lnl_AccessLevel";
        }

        if($Credential -ne $null) {
            $parameters.Add("Credential", $Credential)
        }

        if((Get-AccessLevel -Name $Name) -ne $null) {
            Write-Error -Message ("An accesslevel with name '$($name)' already exists")
            return
        }

        Set-WmiInstance @parameters -Arguments @{
            Name=$Name; 
            SegmentID=$SegmentID;} |
            Select-Object *,@{L='AccessLevelID';E={$_.ID}} | 
            Get-AccessLevel
    }
}