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  | Quintiq file version 2.0 
 |  #parent: #root 
 |  Method AddProduct ( 
 |    Product_MP product, 
 |    Real quantity, 
 |    Boolean hasuserquantity 
 |  ) as ProductInTrip 
 |  { 
 |    Description: 'Given product, add product to trip.' 
 |    TextBody: 
 |    [* 
 |      // desmondt Aug-11-2015 (created) 
 |       
 |      pit := ProductInTrip::FindProductInTripTypeIndex( this.ID(), product.ID() ); 
 |       
 |      if( isnull( pit ) ) 
 |      { 
 |        pit := ProductInTrip::Create( this, 
 |                                      product, 
 |                                      quantity, 
 |                                      hasuserquantity ); 
 |      } 
 |       
 |      return pit; 
 |    *] 
 |  } 
 |  
  |