ORM框架(ITDOS实战源码)

ORM提供了实现持久化层的另一种模式，它采用映射元数据来描述对象关系的映射，使得ORM中间件能在任何一个应用的业务逻辑层和数据库层之间充当桥梁。

如以下示例:

 1  public int GetSystemAccreditMessageInfo(AccreditParam param)
 2         {
 3             var where = new Where<User>();
 4             var countMesage = 0;//记录提醒次数
 5             HttpCookie cookie = HttpContext.Current.Request.Cookies["UserLogin"] as HttpCookie;
 6             if (cookie["Login_id"] != null)
 7             {
 8                 where.And(d => d.id == cookie["Login_id"].ToString());
 9             }
10             where.And(d => d.Del_state == 0);
11             var fs = DB.Context.From<User>()
12                 .Select(User._.All, Power._.All)
13                 .InnerJoin<Power>((a, b) => a.Role_id == b.id)
14                 .Where(where);
15             if (fs.First().Authority == "0")
16             {
17                 countMesage = 0;
18             }
19             else if (fs.First().Authority == "1")
20             {
21                 countMesage = DB.Context.From<Accredit>().Where(d => d.OAuditor_signature == null || d.OAuditor_signature == "").Count();
22             }
23             else if (fs.First().Authority == "2")
24             {
25                 countMesage = DB.Context.From<Accredit>().Where(d => d.TAuditor_signature == null || d.TAuditor_signature == "").Count();
26             }
27             else if (fs.First().Authority == "3")
28             {
29                 countMesage = DB.Context.From<Accredit>().Where(d => d.OAuditor_signature == null || d.OAuditor_signature == "" || d.TAuditor_signature == null || d.TAuditor_signature == "").Count();
30             }
31             return countMesage;
32         }

AccreditLogic.cs

 1 public BaseResult AddAccreditInfo(AccreditParam param)
 2         {
 3             var model = new Accredit();
 4             model.id = Guid.NewGuid().ToString();
 5             model.Acceptance_number = param.Acceptance_number;
 6             model.Certificate_number = param.Certificate_number;
 7             model.Issuing_office = param.Issuing_office;
 8             model.Issue_date = param.Issue_date;
 9             model.Effective_date = param.Effective_date;
10             model.Authorization_projectname = param.Authorization_projectname;
11             model.Measuring_range = param.Measuring_range;
12             model.Accuracy = param.Accuracy;
13             model.Organization_name = param.Organization_name;
14             model.Address = param.Address;
15             model.Corporate_representative = param.Corporate_representative;
16             model.Leading_person = param.Leading_person;
17             model.Competent_department = param.Competent_department;
18             model.Authorized_area = param.Authorized_area;
19             model.Authorization_form = param.Authorization_form;
20             model.Approver = param.Approver;
21             model.Input_person = param.Input_person;
22             model.Input_unit = param.Input_unit;
23             model.Acceptance_date = param.Acceptance_date;
24             HttpCookie cookie = HttpContext.Current.Request.Cookies["UserLogin"] as HttpCookie;
25             if (cookie["OrgId"] != null)
26             {
27                 model.OrgId = cookie["OrgId"].ToString();
28             }
29             if (cookie["OrgId"]=="63001c38-afa4-4a06-567d-0f39b6b5ca9b")
30             {
31                 model.Processing_state = 0;
32             }
33             model.Remarks = param.Remarks;
34             model.Del_state = 0;
35             model.Time = DateTime.Now;
36             //model.Processing_state = param.Processing_state;
37             model.brand = param.brand;
38             var count = DB.Context.Insert<Accredit>(model);
39             return new BaseResult(true, model, "", count);
40         }

 1  public BaseResult UptAccreditInfo(AccreditParam param)
 2         {
 3             var result = GetUpdateModel(param);
 4             if (!result.IsSuccess)
 5                 return result;
 6
 7             var model = (Accredit)result.Data;
 8             model.Acceptance_number = param.Acceptance_number;
 9             model.Certificate_number = param.Certificate_number;
10             model.Issuing_office = param.Issuing_office;
11             model.Issue_date = param.Issue_date;
12             model.Effective_date = param.Effective_date;
13             model.Authorization_projectname = param.Authorization_projectname;
14             model.Measuring_range = param.Measuring_range;
15             model.Accuracy = param.Accuracy;
16             model.Organization_name = param.Organization_name;
17             model.Address = param.Address;
18             model.Corporate_representative = param.Corporate_representative;
19             model.Leading_person = param.Leading_person;
20             model.Competent_department = param.Competent_department;
21             model.Authorized_area = param.Authorized_area;
22             model.Authorization_form = param.Authorization_form;
23             model.Approver = param.Approver;
24             model.Input_person = param.Input_person;
25             model.Input_unit = param.Input_unit;
26             HttpCookie cookie = HttpContext.Current.Request.Cookies["UserLogin"] as HttpCookie;
27             if (cookie["OrgId"] != null)
28             {
29                 model.OrgId = cookie["OrgId"].ToString();
30             }
31             if (cookie["OrgId"] == "63001c38-afa4-4a06-567d-0f39b6b5ca9b")
32             {
33                 model.Processing_state = 0;
34             }
35             model.Acceptance_date = param.Acceptance_date;
36             model.Remarks = param.Remarks;
37             model.Del_state = 0;
38             //model.Processing_state = param.Processing_state??model.Processing_state;
39             model.Time = DateTime.Now;
40             model.brand = param.brand;
41             var count = DB.Context.Update(model, d => d.id == param.id);
42             return new BaseResult(true, model, "", count);
43         }

AccreditLogic.cs