Question

我有以下表格：

客户=＆gt; CustomerAccount =＆gt;帐户

我也有一个nHibernate映射POCO到上面的每个表。

我在实现IIdentifier<T>

的对象中有以下lambda表达式

public Expression<Func<ICustomer, bool>> Filter
{
    get { return customer => customer.CustomerNumber == _customerNumber; }
}

现在我要做的就是加入Customer =＆gt; CustomerAccount =＆gt;帐户表格通过QueryOver<Account>

如何添加上述Filter lamdba（类型为Customer），以按客户编号过滤？

ICustomer customer = null;
ICustomerAccount customerAccount = null;
IAccount account = null;

var query = QueryOver(() => account)
    .JoinAlias(() => account.CustomerAccounts, () => customerAccount, JoinType.InnerJoin)
    .JoinAlias(() => customerAccount.Customer, () => customer, JoinType.InnerJoin)
    .Where(() => customerAccount.EndDate == null)
    .And(() => account.IsPreferredAccount == true)
    .And(() => ?? Want to add the above Filter() lambda some how here);

谢谢，

凯尔

Answer 1

你可以尝试：

var query = QueryOver(() => account)
    .JoinAlias(() => account.CustomerAccounts, () => customerAccount, JoinType.InnerJoin)
    .JoinAlias(() => customerAccount.Customer, () => customer, JoinType.InnerJoin)
    .Where(() => customerAccount.EndDate == null)
    .And(() => account.IsPreferredAccount == true)
    .And(Restrictions.Where<ICustomer>(Filter));

nHibernate QueryOver <t>复杂性</t>

1 个答案: