Quintiq file version 2.0 
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#parent: #root 
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StaticMethod Synchronize ( 
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  FeedbackPeriodTaskOperations feedbackptos 
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) as owning PeriodTaskOperations 
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{ 
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  Description: 'Create missing period tasks for feedback.' 
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  TextBody: 
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  [* 
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    ptos := construct( PeriodTaskOperations ); 
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    if( feedbackptos.Size() > 0 ) 
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    { 
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        // Propagate relations that are needed for feedbacks. 
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      Transaction::Transaction().Propagate( relation( Feedback, UnitPeriod ) ); 
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      // Propagate relations that are needed for feedbacks. 
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      Transaction::Transaction().Propagate( relation( FeedbackPeriodTaskOperation, Operation ) ); 
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      // Propagate relations that are needed for feedbacks. 
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      Transaction::Transaction().Propagate( relation( FeedbackPeriodTaskOperation, PeriodTaskOperation ) ); 
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      traverse( feedbackptos, Elements, feedback, 
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                feedback.GetIsValidFeedback() ) 
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      { 
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        pt := feedback.PeriodTaskOperation(); 
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        if( isnull( pt ) ) 
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        { 
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          pt := PeriodTaskOperation::CreateValidPeriodTask( feedback.Operation(), 
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                                                            feedback.UnitPeriod(), 
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                                                            0.0, 
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                                                            false ); 
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        } 
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        if( not isnull( pt ) ) 
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        { 
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          ptos.Add( pt ); 
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        } 
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      } 
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    } 
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    return &ptos; 
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  *] 
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} 
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