Question

我正在使用AngularJS / Breeze，我需要使用Breeze格式在SQL之后编写（http://www.breezejs.com/documentation/query-examples）：

SELECT * FROM CONTACT WHERE ID IN（从pharmacy_contact中选择contact_id，其中pharmacy_id ='11855'。

我的模型类如下：

[Table("pharmacy_contact")]
public class PharmacyContact
{
    [Key]
    public int Id { get; set; }
    public int? PharmacyId { get; set; }
    public int? ContactId { get; set; }

}

[Table("contact")]
public class Contact
{
    [Key]
    public int Id { get; set; }
    public string First_Name { get; set; }
    public string Last_Name { get; set; }
    public string Title { get; set; }
    public string Phone { get; set; }
    public string Extn { get; set; }
    public string Fax { get; set; }
    public string Email { get; set; }
    public string Contact_Daytime { get; set; }
    public string Contact_Method { get; set; }
    public string Contact_Type { get; set; }

}

请告诉我如何在微风中编写上述查询

Answer 1

您可能需要按如下方式重新编写SQL语句：

SELECT * FROM CONTACT inner join pharmacy_contact  on ID = contact_id where pharmacy_id=11855.

你可以在微风中实现这一点：

 var query = EntityQuery.from('CONTACTS')
    .expand('pharmacy_contacts')
    .where('pharmacy_contacts','any','pharmacy_id', '==', 11855);

鉴于您修改了contact类以包含其pharmacy_contacts：

  [Table("contact")]
public class Contact
{
    [Key]
    public int Id { get; set; }
    public string First_Name { get; set; }
    public string Last_Name { get; set; }
    public string Title { get; set; }
    public string Phone { get; set; }
    public string Extn { get; set; }
    public string Fax { get; set; }
    public string Email { get; set; }
    public string Contact_Daytime { get; set; }
    public string Contact_Method { get; set; }
    public string Contact_Type { get; set; }
    public  ICollection<pharmacy_contact> pharmacy_contacts { get; set; }

}

修改

pharmacy_contact类也包含导航回联系

[Table("pharmacy_contact")] public class PharmacyContact { [Key] public int Id { get; set; } public int? PharmacyId { get; set; } [ForeignKey("Contact")] public int? ContactId { get; set; } public contact contact { get; set; } }

breezejs SubQuery一对多的关系

1 个答案: