使用Object Initializer语法创建MultiMatchQuery时出错

Question

我正在使用Nest 2.2.0,我正在尝试构建一个多匹配查询,如下所示:

var searchQuery = new MultiMatchQuery() 
{
    Fields = Field<Product>(p=>p.SKUName, 2),
    Query = "hello world"
};

然而,当我运行它时,它返回:

非泛型类型"Nest.Field"不能与类型参数一起使用.

我不明白为什么我会收到错误,因为我或多或少直接从https://www.elastic.co/guide/en/elasticsearch/client/net-api上的文档中获取了这个查询./2.x/multi-match-usage.html#_object_initializer_syntax_example_35.

如果重要,我已将产品定义如下:

[ElasticsearchType(Name="product", IdProperty="Id")]
public class Product
{
    [Nest.Number(Store = true)]
    public int Id {get;set;}

    [String(Name="name", Store = true, Index=FieldIndexOption.Analyzed)]
    public string SKUName { get; set; }
}

有人能帮忙吗？

Answer 1

Field你正在寻找的类型是Nest.Infer.Field

var searchQuery = new MultiMatchQuery()
{
    Fields = Nest.Infer.Field<Product>(p => p.SKUName, 2),
    Query = "hello world"
};

client.Search<Product>(new SearchRequest { Query = searchQuery });