Private/New-AtwsDefinition.ps1

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Function New-AtwsDefinition
{ 
  Begin
  { 
    $EntityName = '#EntityName'
           
    # Enable modern -Debug behavior
    If ($PSCmdlet.MyInvocation.BoundParameters['Debug'].IsPresent) {$DebugPreference = 'Continue'}
    
    Write-Debug ('{0}: Begin of function' -F $MyInvocation.MyCommand.Name)
    
    $ProcessObject = @()
  }

  Process
  {
    $Fields = Get-AtwsFieldInfo -Entity $EntityName
    
    If ($InputObject)
    {
      Write-Verbose ('{0}: Copy Object mode: Setting ID property to zero' -F $MyInvocation.MyCommand.Name)  
      
      $CopyNo = 1

      Foreach ($Object in $InputObject) 
      { 
        # Create a new object and copy properties
        $NewObject = New-Object Autotask.$EntityName
        
        # Copy every non readonly property
        $FieldNames = $Fields.Where({$_.Name -ne 'id'}).Name
        If ($PSBoundParameters.ContainsKey('UserDefinedFields')) {
          $FieldNames += 'UserDefinedFields'
        }
        Foreach ($Field in $FieldNames)
        {
          $NewObject.$Field = $Object.$Field
        }
        If ($NewObject -is [Autotask.Ticket])
        {
          Write-Verbose ('{0}: Copy Object mode: Object is a Ticket. Title must be modified to avoid duplicate detection.' -F $MyInvocation.MyCommand.Name)  
          $Title = '{0} (Copy {1})' -F $NewObject.Title, $CopyNo
          $CopyNo++
          $NewObject.Title = $Title
        }
        $ProcessObject += $NewObject
      }   
    }
    Else
    {
      Write-Debug ('{0}: Creating empty [Autotask.{1}]' -F $MyInvocation.MyCommand.Name, $EntityName) 
      $ProcessObject += New-Object Autotask.$EntityName    
    }
    
    Foreach ($Parameter in $PSBoundParameters.GetEnumerator())
    {
      $Field = $Fields | Where-Object {$_.Name -eq $Parameter.Key}
      If ($Field -or $Parameter.Key -eq 'UserDefinedFields')
      { 
        If ($Field.IsPickList)
        {
          If($Field.PickListParentValueField)
          {
            $ParentField = $Fields.Where{$_.Name -eq $Field.PickListParentValueField}
            $ParentLabel = $PSBoundParameters.$($ParentField.Name)
            $ParentValue = $ParentField.PickListValues | Where-Object {$_.Label -eq $ParentLabel}
            $PickListValue = $Field.PickListValues | Where-Object {$_.Label -eq $Parameter.Value -and $_.ParentValue -eq $ParentValue.Value}                
          }
          Else 
          { 
            $PickListValue = $Field.PickListValues | Where-Object {$_.Label -eq $Parameter.Value}
          }
          $Value = $PickListValue.Value
        }
        Else
        {
          $Value = $Parameter.Value
        } 

        Foreach ($Object in $ProcessObject) 
        { 
          $Object.$($Parameter.Key) = $Value
        }
      }
    }   
     
    $Caption = $MyInvocation.MyCommand.Name
    $VerboseDescrition = '{0}: About to create {1} {2}(s). This action cannot be undone.' -F $Caption, $ProcessObject.Count, $EntityName
    $VerboseWarning = '{0}: About to create {1} {2}(s). This action may not be undoable. Do you want to continue?' -F $Caption, $ProcessObject.Count, $EntityName

    If ($PSCmdlet.ShouldProcess($VerboseDescrition, $VerboseWarning, $Caption)) { 
      $Result = New-AtwsData -Entity $ProcessObject
    }
  }

  End
  {
    Write-Debug ('{0}: End of function, returning {1} {2}(s)' -F $MyInvocation.MyCommand.Name, $Result.count, $EntityName)
    Return $Result
  }
}