ABP框架源码学习之修改默认数据库表前缀或表名称

Posted 2021-01-12 yanglang

1，源码

 1 namespace Abp.Zero.EntityFramework
 2 {
 3     /// <summary>
 4     /// Extension methods for <see cref="DbModelBuilder"/>.
 5     /// </summary>
 6     public static class AbpZeroDbModelBuilderExtensions
 7     {
 8         /// <summary>
 9         /// Changes prefix for ABP tables (which is "Abp" by default).
10         /// Can be null/empty string to clear the prefix.
11         /// </summary>
12         /// <typeparam name="TTenant">The type of the tenant entity.</typeparam>
13         /// <typeparam name="TRole">The type of the role entity.</typeparam>
14         /// <typeparam name="TUser">The type of the user entity.</typeparam>
15         /// <param name="modelBuilder">Model builder.</param>
16         /// <param name="prefix">Table prefix, or null to clear prefix.</param>
17         /// <param name="schemaName">Schema name</param>
18         public static void ChangeAbpTablePrefix<TTenant, TRole, TUser>(this DbModelBuilder modelBuilder, string prefix, string schemaName = null)
19             where TTenant : AbpTenant<TUser>
20             where TRole : AbpRole<TUser>
21             where TUser : AbpUser<TUser>
22         {
23             prefix = prefix ?? "";
24 
25             SetTableName<AuditLog>(modelBuilder, prefix + "AuditLogs", schemaName);
26             SetTableName<BackgroundJobInfo>(modelBuilder, prefix + "BackgroundJobs", schemaName);
27             SetTableName<Edition>(modelBuilder, prefix + "Editions", schemaName);
28             SetTableName<FeatureSetting>(modelBuilder, prefix + "Features", schemaName);
29             SetTableName<TenantFeatureSetting>(modelBuilder, prefix + "Features", schemaName);
30             SetTableName<EditionFeatureSetting>(modelBuilder, prefix + "Features", schemaName);
31             SetTableName<ApplicationLanguage>(modelBuilder, prefix + "Languages", schemaName);
32             SetTableName<ApplicationLanguageText>(modelBuilder, prefix + "LanguageTexts", schemaName);
33             SetTableName<NotificationInfo>(modelBuilder, prefix + "Notifications", schemaName);
34             SetTableName<NotificationSubscriptionInfo>(modelBuilder, prefix + "NotificationSubscriptions", schemaName);
35             SetTableName<OrganizationUnit>(modelBuilder, prefix + "OrganizationUnits", schemaName);
36             SetTableName<PermissionSetting>(modelBuilder, prefix + "Permissions", schemaName);
37             SetTableName<RolePermissionSetting>(modelBuilder, prefix + "Permissions", schemaName);
38             SetTableName<UserPermissionSetting>(modelBuilder, prefix + "Permissions", schemaName);
39             SetTableName<TRole>(modelBuilder, prefix + "Roles", schemaName);
40             SetTableName<Setting>(modelBuilder, prefix + "Settings", schemaName);
41             SetTableName<TTenant>(modelBuilder, prefix + "Tenants", schemaName);
42             SetTableName<UserLogin>(modelBuilder, prefix + "UserLogins", schemaName);
43             SetTableName<UserLoginAttempt>(modelBuilder, prefix + "UserLoginAttempts", schemaName);
44             SetTableName<TenantNotificationInfo>(modelBuilder, prefix + "TenantNotifications", schemaName);
45             SetTableName<UserNotificationInfo>(modelBuilder, prefix + "UserNotifications", schemaName);
46             SetTableName<UserOrganizationUnit>(modelBuilder, prefix + "UserOrganizationUnits", schemaName);
47             SetTableName<UserRole>(modelBuilder, prefix + "UserRoles", schemaName);
48             SetTableName<TUser>(modelBuilder, prefix + "Users", schemaName);
49             SetTableName<UserAccount>(modelBuilder, prefix + "UserAccounts", schemaName);
50             SetTableName<UserClaim>(modelBuilder, prefix + "UserClaims", schemaName);
51             SetTableName<RoleClaim>(modelBuilder, prefix + "RoleClaims", schemaName);
52             SetTableName<UserToken>(modelBuilder, prefix + "UserTokens", schemaName);
53         }
54 
55         internal static void SetTableName<TEntity>(this DbModelBuilder modelBuilder, string tableName, string schemaName)
56             where TEntity : class
57         {
58             if (schemaName == null)
59             {
60                 modelBuilder.Entity<TEntity>().ToTable(tableName);
61             }
62             else
63             {
64                 modelBuilder.Entity<TEntity>().ToTable(tableName, schemaName);                
65             }
66         }
67     }
68 }

2，操作

public class WCHSOFTDbContext : AbpZeroDbContext<Tenant, Role, User, WCHSOFTDbContext>
{
　　public WCHSOFTDbContext(DbContextOptions<WCHSOFTDbContext> options)
   　　: base(options)
   {
   }
   protected override void OnModelCreating(ModelBuilder modelBuilder)
   {
   　　modelBuilder.ChangeAbpTablePrefix<Tenant, Role, User>("Wch");
   　　base.OnModelCreating(modelBuilder);
   }
}

3，效果

 4，后记

　　本人最近正在研究Abp框架，发现官方给的demo和文档只是交大家怎么使用，有些功能文档中并没有写明，所以必须通过查看源码来找到自己问题的解决方法。大家在abp开发中有什么遇到的问题或者有什么建议，欢迎大家留言。