扩展术语计算

我在DueDate上添加了一个FieldUpdated事件处理程序,并检查了调用堆栈以查找修改DueDate的方法:

包含逻辑的是[terms(…)]属性:

#region TermsID
public abstract class termsID : IBqlField
{
}

/// <summary>
/// The <see cref="PX.Objects.CS.Terms">credit terms</see> associated with the document (unavailable for prepayments and debit adjustments).\
/// Defaults to the <see cref="Vendor.TermsID">credit terms of the vendor</see>.
/// </summary>
[PXDBString(10, IsUnicode = true)]
[PXDefault(typeof(Search<Vendor.termsID,
    Where<Vendor.bAccountID, Equal<Current<APInvoice.vendorID>>,
        And<Current<APInvoice.docType>, NotEqual<APDocType.debitAdj>>>>),
    PersistingCheck = PXPersistingCheck.Nothing)]
[PXUIField(DisplayName = "Terms", Visibility = PXUIVisibility.Visible)]
[APTermsSelector]
[Terms(typeof(APInvoice.docDate), typeof(APInvoice.dueDate), typeof(APInvoice.discDate), typeof(APInvoice.curyOrigDocAmt), typeof(APInvoice.curyOrigDiscAmt))]
public virtual string TermsID
{
    get;
    set;
}
#endregion

在terms属性中,您可以找到修改到期日期的代码。 您可以考虑提供自定义属性或绕过该逻辑。

public static void CalcTermsDates(Terms terms, DateTime? docDate, out DateTime? dueDate, out DateTime? discDate)
{
    dueDate = null;
    discDate = null;
    if (docDate != null && terms != null)
    {
        DateTime DocDate = docDate.Value;
        switch (terms.DueType)
        {
            case TermsDueType.FixedNumberOfDays:
                dueDate = DocDate.AddDays((double)terms.DayDue00);
                break;
            case TermsDueType.Prox:
                DateTime sameDayOfNextMonth = DocDate.AddMonths(1);
                DateTime firstDayOfNextMonth = new DateTime(sameDayOfNextMonth.Year, sameDayOfNextMonth.Month, 1);
                dueDate = firstDayOfNextMonth.AddDays((double)terms.DayDue00);
                break;
            case TermsDueType.DayOfNextMonth:
                dueDate = new PXDateTime(DocDate.Year, DocDate.Month, (int)terms.DayDue00).AddMonths(1);
                break;
            case TermsDueType.DayOfTheMonth:
                int monthShift = DocDate.Day > (int)terms.DayDue00 ? 1 : 0;
                dueDate = new PXDateTime(DocDate.Year, DocDate.Month, (int)terms.DayDue00).AddMonths(monthShift);
                break;
            case TermsDueType.Custom:
                int nextmonth = 0;
                if (DocDate.Day >= terms.DayFrom00 && DocDate.Day <= terms.DayTo00)
                {
                    if (terms.DayDue00 <= terms.DayTo00)
                    {
                        nextmonth = 1;
                    }
                    dueDate = new PXDateTime(DocDate.Year, DocDate.Month, (int)terms.DayDue00).AddMonths(nextmonth);
                }
                if (DocDate.Day >= terms.DayFrom01 && DocDate.Day <= terms.DayTo01)
                {
                    if (terms.DayDue01 <= terms.DayTo01)
                    {
                        nextmonth = 1;
                    }
                    dueDate = new PXDateTime(DocDate.Year, DocDate.Month, (int)terms.DayDue01).AddMonths(nextmonth);
                }
                break;
            case TermsDueType.EndOfMonth:
                dueDate = new DateTime(DocDate.Year, DocDate.Month, 1).AddMonths(1).AddDays(-1);
                break;
            case TermsDueType.EndOfNextMonth:
                dueDate = new DateTime(DocDate.Year, DocDate.Month, 1).AddMonths(2).AddDays(-1);
                break;
            default:
                break;
        }

        if (terms.InstallmentType == TermsInstallmentType.Multiple)
        {
            discDate = dueDate;
        }
        else
        {
        switch (terms.DiscType)
        {
            case TermsDueType.FixedNumberOfDays:
                discDate = DocDate.AddDays((double)terms.DayDisc);
                break;
            case TermsDueType.Prox:
                DateTime sameDayOfNextMonth = DocDate.AddMonths(1);
                DateTime firstDayOfNextMonth = new DateTime(sameDayOfNextMonth.Year, sameDayOfNextMonth.Month, 1);
                discDate = firstDayOfNextMonth.AddDays((double)terms.DayDisc);
                break;
            case TermsDueType.DayOfNextMonth:
                discDate = new PXDateTime(DocDate.Year, DocDate.Month, (int)terms.DayDisc).AddMonths(1);
                break;
            case TermsDueType.DayOfTheMonth:
                int monthShift;

                    if (terms.DueType == TermsDueType.DayOfNextMonth && DocDate.Day <= (int)terms.DayDue00)
                        monthShift = DocDate.Day >= (int)terms.DayDisc ? 1 : 0;
                else if (terms.DueType == TermsDueType.EndOfNextMonth)
                    monthShift = DocDate.Day >= (int)terms.DayDisc ? 1 : 0;
                else
                    monthShift = DocDate.Day > (int)terms.DayDue00 ? 1 : 0;
                discDate = new PXDateTime(DocDate.Year, DocDate.Month, (int)terms.DayDisc).AddMonths(monthShift);
                break;
            case TermsDueType.EndOfMonth:
                discDate = new DateTime(DocDate.Year, DocDate.Month, 1).AddMonths(1).AddDays(-1);
                break;
            case TermsDueType.EndOfNextMonth:
                discDate = new DateTime(DocDate.Year, DocDate.Month, 1).AddMonths(2).AddDays(-1);
                break;
            default:
                break;
        }
        }

        if (discDate > dueDate)
        {
            discDate = dueDate;
        }
    }           
}

可以创建从现有属性(例如:terms)派生的新属性(例如:myterms)并重写方法(例如:calctterms)。然后重新定义/扩展使用该属性(termsid)的字段,使其使用属性(myterms)而不是(terms)。

这个 重大问题 当您要更改的代码位于无法重写的方法中时,在这种情况下,您需要复制、在自定义属性中批量粘贴代码并放弃继承。

它的起点是属性代码。要获取它,请使用自定义项目编辑器中的“查看源代码”功能:

然后使用“在文件中查找”获取属性代码:

实现apinvoice_DueDate_FieldUpdated事件处理程序,它将在更改术语时引发。