Question

背景

我正在尝试使用ServiceStack.OrmLite来获取一些值（所以我可以缓存它们以对它们运行一些处理）。

我需要抓取三个值的组合，并且我有一个自定义SQL语句将产生它们（连接等）。

因为这将是一个很大的组合列表，我想传入一些值列表并使用Sql.In过滤到只有具有这些值的结果。

具体细节

我需要检查发票是否对公司和其他值（在此称为ClaimLawsuitID）是唯一的。

我的poco也是如此：

public class FirmIDClaimLawsuitIDInvoiceNumberCombination
{
    public string FirmID { get; set; }
    public string ClaimLawsuitID { get; set; }
    public string InvoiceNumber { get; set; }
}

我有我的SQL语句：

select tblDefenseInvoice.FirmID, tblDefInvClaimantDetail.ClaimLawsuitID, tblDefInvClaimantDetail.invoiceNumber 
    from tblDefenseInvoice
    inner join tblDefInvClaimantDetail
        on(tblDefenseInvoice.DefenseInvoiceID = tblDefInvClaimantDetail.DefenseInvoiceID)

我想运行以下内容：

 public List<FirmIDClaimLawsuitIDInvoiceNumberCombination> GetFirmIDClaimLawsuitIDInvoiceNumberCombinationsForExistingItems(IEnumerable<int> firmIds, IEnumerable<long> claimLawsuitIDs, IEnumerable<string> invoiceNumbers)
 {
     var sql = @"select tblDefenseInvoice.FirmID, tblDefInvClaimantDetail.ClaimLawsuitID, tblDefInvClaimantDetail.invoiceNumber 
            from tblDefenseInvoice
            inner join tblDefInvClaimantDetail
                on(tblDefenseInvoice.DefenseInvoiceID = tblDefInvClaimantDetail.DefenseInvoiceID)";

    var ev = OrmLiteConfig.DialectProvider.ExpressionVisitor<tblClaimLawsuit>();
    var firmFilter = PredicateBuilder.True<tblDefenseInvoice>();
    var claimLawsuitFilter = PredicateBuilder.True<tblDefInvClaimantDetail>();
    var invoiceNumberFilter = PredicateBuilder.True<tblDefInvClaimantDetail>();

    firmFilter = x => Sql.In(x.FirmID, firmIds);
    claimLawsuitFilter = x => Sql.In(x.ClaimLawsuitID, claimLawsuitIDs);
    invoiceNumberFilter = x => Sql.In(x.InvoiceNumber, invoiceNumbers);
    ev.Select(sql);
    ev.Where(firmFilter);
    ev.Where(claimLawsuitFilter);
    ev.Where(invoiceNumberFilter);

    return dal.DB.Select<FirmIDClaimLawsuitIDInvoiceNumberCombination>(ev.ToSelectStatement());

 }

问题

这有可能达到这个目的吗？
在ServiceStack的OrmLite中是否有其他方法可以实现这一点，它更清洁，我不知道？

Answer 1

由于我选择了POCO，我只需要根据POCO添加过滤器。

以下工作正常：

public List<FirmIDClaimLawsuitIDInvoiceNumberCombination>
    GetFirmIDClaimLawsuitIDInvoiceNumberCombinationsForExistingItems(
    IEnumerable<long> firmIds,
    IEnumerable<long> claimLawsuitIDs)
{
    var sql = @"select tblDefenseInvoice.FirmID, tblDefInvClaimantDetail.ClaimLawsuitID, tblDefInvClaimantDetail.invoiceNumber 
            from tblDefenseInvoice
            inner join tblDefInvClaimantDetail
                on(tblDefenseInvoice.DefenseInvoiceID = tblDefInvClaimantDetail.DefenseInvoiceID)";

    var ev = OrmLiteConfig.DialectProvider.ExpressionVisitor<FirmIDClaimLawsuitIDInvoiceNumberCombination>();
    var firmFilter = PredicateBuilder.True<FirmIDClaimLawsuitIDInvoiceNumberCombination>();
    var claimLawsuitFilter = PredicateBuilder.True<FirmIDClaimLawsuitIDInvoiceNumberCombination>();

    firmFilter = x => Sql.In(x.FirmID, firmIds);
    claimLawsuitFilter = x => Sql.In(x.ClaimLawsuitID, claimLawsuitIDs);
    ev.Select(sql);
    ev.Where(firmFilter);
    ev.Where(claimLawsuitFilter);

    return dal.DB.Select<FirmIDClaimLawsuitIDInvoiceNumberCombination>(ev.ToSelectStatement());
}

ServiceStack.ORMLite：自定义查询自定义Poco与Sql.In选择？

背景

具体细节

问题

1 个答案: