Question

我有smartFilter和智能表，我试图从结果中排除项目。我有以下代码：

var oBindingParameters = oEvent.getParameter("bindingParams");

var currVal = this._aItemsForLink[0];
    var filter = new Filter({filters:[
        new sap.ui.model.Filter("RevisionNumber", sap.ui.model.FilterOperator.EQ, currVal.RevisionNumber),
        new sap.ui.model.Filter("CompanyCode", sap.ui.model.FilterOperator.EQ, currVal.CompanyCode),
        new sap.ui.model.Filter("FiscalYear", sap.ui.model.FilterOperator.EQ, currVal.FiscalYear),
        new sap.ui.model.Filter("Invoice", sap.ui.model.FilterOperator.EQ, currVal.Invoice),
        new sap.ui.model.Filter("InvoiceYear", sap.ui.model.FilterOperator.EQ, currVal.InvoiceYear)
                ],and : true});

        oBindingParameters.filters = [filter];

有没有办法为此过滤器实现逻辑否定？类似的东西：

WHERE NOT ( companycode = '...' and revisionnumber = '...' and accountingdocument = '...' and invoice = '...' and fiscalyear = '...' )

Answer 1

形式 NOT（V1 = C1和V2 = C2和...... Vn = Cn）的逻辑表达式与此相同： V1 ne C1或V2 ne C2或。 .. Vn ne Cn 。所以，在你的情况下，它将是：

var filter = new Filter({filters:[
            new sap.ui.model.Filter("RevisionNumber", sap.ui.model.FilterOperator.NE, currVal.RevisionNumber),
            new sap.ui.model.Filter("CompanyCode", sap.ui.model.FilterOperator.NE, currVal.CompanyCode),
            new sap.ui.model.Filter("FiscalYear", sap.ui.model.FilterOperator.NE, currVal.FiscalYear),
            new sap.ui.model.Filter("Invoice", sap.ui.model.FilterOperator.NE, currVal.Invoice),
            new sap.ui.model.Filter("InvoiceYear", sap.ui.model.FilterOperator.NE, currVal.InvoiceYear)
            ],and : false});

请记住，SQL WHERE子句中的NE（Not Equal）运算符在应用于关键字段时可能非常昂贵。

逻辑否定SAP UI5过滤器

1 个答案: