duheng
2025-04-07 4265cdf374c215edf5284cb7fc751060266ec473
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
namespace PBS.Service
{
    /// <summary>
    ///
    /// </summary>
    public class DbFirstHelper
    {
        /// <summary>
        /// 初始化
        /// </summary>
        public static bool Initial(out string msg)
        {
            msg = string.Empty;
            try
            {
                var connectConfig = PBS.ConfigHelper.DefaultConnectionConfig;
                if (connectConfig == null)
                {
                    msg = "连接配置初始化失败";
                    return false;
                }
 
                connectConfig.ConfigureExternalServices = new ConfigureExternalServices()
                {
                    EntityService = (property, column) =>
                    {
                        //除主键外其他列都可空
                        if (!column.IsPrimarykey)
                        {
                            column.IsNullable = true;
                        }
                        if (column.DataType == StaticConfig.CodeFirst_BigString)
                        {
                            if (PBSParasHelper.PBS.DataBase.DbType == PBS.DbType.PostgreSql)
                            {
                                column.DataType = "character varying";
                            }
                        }
                    }
                };
 
                var typeList = new List<Type>()
                {
                     typeof(PBS.Entity.Place),
                     typeof(PBS.Entity.Facility),
                     typeof(PBS.Entity.ModelTemplate),
                     typeof(PBS.Entity.ModelTemplateGroup),
                     typeof(PBS.Entity.ElecPrice),
                     typeof(PBS.Entity.WaterEquipment),
                };
                using (var db = new SqlSugarClient(connectConfig))
                {
                    //设置字符串默认长度
                    //db.CodeFirst.SetStringDefaultLength(250);
                    //db.CodeFirst.SetStringDefaultLength(int.MaxValue);
                    //建库:如果不存在创建数据库存在不会重复创建 createdb;注意 :Oracle和个别国产库需不支持该方法,需要手动建库
                    db.DbMaintenance.CreateDatabase();
                    db.CodeFirst.InitTables
                        (
                           typeList.ToArray()
                        );
                }
 
                return true;
            }
            catch (Exception ex)
            {
                msg = ex.Message;
                return false;
            }
        }
    }
}