Tsql 如何使用NHibernate的ICriteria进行分组、获取关联和T-SQL函数

我要创建以下T-SQL语句：

SELECT  SUM (sa.Amount) as 'SumAmount',
        SUM(sa.Cost) as 'SumCost', 
        gg.[Description] as 'Goodsgroup', Month(sa.[Date]) as 'Month' 
FROM SalesmanArticle sa
INNER JOIN Article a
    ON a.ArticleId = sa.ArticleId
INNER JOIN GoodsGroup gg
    ON gg.GoodsGroupId = a.GoodsGroupId
GROUP BY gg.[Description], Month(sa.[Date])
ORDER BY 'Month', 'Goodsgroup'

NHibernates ICriteria是否有可能

如何使用Month-T-SQL函数

我是否必须手动加入，或者ICriteria API是否知道，当我使用PropertyName“SalesmanArticle.Article.Goodsgroup.Description”时，它必须加入文章和Goodsgroup

编辑：

现在，我在这里编写了以下代码：

// typesafe properties
string article = typeof(Article).Name;
string goodsGroup = typeof(GoodsGroup).Name;
string salesmanArticle = typeof(SalesmanArticle).Name;

string amount = Reflector.GetPropertyName<SalesmanArticle>(x => x.Amount);
string cost = Reflector.GetPropertyName<SalesmanArticle>(x => x.Cost);
string description = string.Format("{0}.{1}",
    goodsGroup, Reflector.GetPropertyName<SalesmanArticle>(x => x.Article.GoodsGroup.Description));
string date = Reflector.GetPropertyName<SalesmanArticle>(x => x.Date);

string formatedDate = string.Format("MONTH([{0}])", date);

return GetSession()
    // FROM
    .CreateCriteria(typeof(SalesmanArticle), salesmanArticle)
    // JOIN
        .CreateCriteria(article, article, JoinType.InnerJoin)
        .CreateCriteria(goodsGroup, goodsGroup, JoinType.InnerJoin)
    // SELECT
        .SetProjection(Projections.ProjectionList()
                           .Add(Projections.Sum(amount))
                           .Add(Projections.Sum(cost))
    // GROUP BY
                           .Add(Projections.GroupProperty(description))
                           .Add(Projections.SqlGroupProjection(formatedDate, formatedDate, new[]{"MyDate"} , new[] { NHibernateUtil.Int32 })))
        .List();

我曾经

.Add(Projections.SqlFunction("MONTH", NHibernateUtil.Int32, Projections.GroupProperty(date))))

SqlFunction的问题在于它通过sa.Date而不是MONTHsa.Date创建一个组。但这种方法在语法上是正确的

所以我切换到SqlGroupProjection方法

但无论如何，它不起作用

---

有人能帮我吗？

我解决了。以下是正确的代码：

public class SalesmanArticleRepository : Repository<SalesmanArticle>, ISalesmanArticleRepository
{
    public IList GetAllAll()
    {
        // typesafe properties
        string article = typeof(Article).Name;
        string goodsGroup = typeof(GoodsGroup).Name;
        string salesmanArticle = typeof(SalesmanArticle).Name;

        string amount = Reflector.GetPropertyName<SalesmanArticle>(x => x.Amount);
        string cost = Reflector.GetPropertyName<SalesmanArticle>(x => x.Cost);
        string description = string.Format("{0}.{1}",
            goodsGroup, Reflector.GetPropertyName<SalesmanArticle>(x => x.Article.GoodsGroup.Description));
        string date = Reflector.GetPropertyName<SalesmanArticle>(x => x.Date);

        string formatedDateSql = string.Format("month({{alias}}.[{0}]) as mydate", date);
        string formatedDateGroupBy = string.Format("month({{alias}}.[{0}])", date);

        return GetSession()
            // FROM
            .CreateCriteria(typeof(SalesmanArticle), salesmanArticle)
            // JOIN
                .CreateCriteria(article, article, JoinType.InnerJoin)
                .CreateCriteria(goodsGroup, goodsGroup, JoinType.InnerJoin)
            // SELECT
                .SetProjection(Projections.ProjectionList()
                                   .Add(Projections.Sum(amount))
                                   .Add(Projections.Sum(cost))
            // GROUP BY
                                   .Add(Projections.GroupProperty(description))
                                   .Add(Projections.SqlGroupProjection(formatedDateSql, formatedDateGroupBy, new[] { "mydate" }, new[] { NHibernateUtil.Int32 })))
                .List();
    }
}

---

您知道如何在hql中执行此操作吗？我爱Hql

public class SalesmanArticleRepository : Repository<SalesmanArticle>, ISalesmanArticleRepository
{
    public IList GetAllAll()
    {
        // typesafe properties
        string article = typeof(Article).Name;
        string goodsGroup = typeof(GoodsGroup).Name;
        string salesmanArticle = typeof(SalesmanArticle).Name;

        string amount = Reflector.GetPropertyName<SalesmanArticle>(x => x.Amount);
        string cost = Reflector.GetPropertyName<SalesmanArticle>(x => x.Cost);
        string description = string.Format("{0}.{1}",
            goodsGroup, Reflector.GetPropertyName<SalesmanArticle>(x => x.Article.GoodsGroup.Description));
        string date = Reflector.GetPropertyName<SalesmanArticle>(x => x.Date);

        string formatedDateSql = string.Format("month({{alias}}.[{0}]) as mydate", date);
        string formatedDateGroupBy = string.Format("month({{alias}}.[{0}])", date);

        return GetSession()
            // FROM
            .CreateCriteria(typeof(SalesmanArticle), salesmanArticle)
            // JOIN
                .CreateCriteria(article, article, JoinType.InnerJoin)
                .CreateCriteria(goodsGroup, goodsGroup, JoinType.InnerJoin)
            // SELECT
                .SetProjection(Projections.ProjectionList()
                                   .Add(Projections.Sum(amount))
                                   .Add(Projections.Sum(cost))
            // GROUP BY
                                   .Add(Projections.GroupProperty(description))
                                   .Add(Projections.SqlGroupProjection(formatedDateSql, formatedDateGroupBy, new[] { "mydate" }, new[] { NHibernateUtil.Int32 })))
                .List();
    }
}