Dot Net Entity Framework数据库更新不会在mysql数据库中创建表

Question

我正在使用MySql官方连接提供程序作为数据库.我正在尝试使用mac上的下一个项目示例(asp.net core 1.0):

public class BloggingContext : DbContext
{
    public BloggingContext(DbContextOptions<BloggingContext> options)
        : base(options)
    { }

    public DbSet<Blog> Blogs { get; set; }
    public DbSet<Post> Posts { get; set; }
}

public class Blog
{
    public int BlogId { get; set; }
    public string Url { get; set; }

    public List<Post> Posts { get; set; }
}

public class Post
{
    public int PostId { get; set; }
    public string Title { get; set; }
    public string Content { get; set; }

    public int BlogId { get; set; }
    public Blog Blog { get; set; }
}

在我的Startup.cs中

    public void ConfigureServices(IServiceCollection services)
    {
        var connection = @"server=localhost;userid=efcore;port=3306;database=blogsFinal;sslmode=none;";
        services.AddDbContext<BloggingContext>(options => options.UseMySQL(connection));

        // Add framework services.
        services.AddMvc();
    }

在我的project.json中我也添加了

"dependencies": {
   ...
     "MySql.Data.EntityFrameworkCore": "7.0.5-ir21",

    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    }
}

和

  "tools": {
    ...,
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
  },

当我运行时dotnet ef migrations add v1,工作正常并创建迁移文件,但是当我执行dotnet ef database update数据库时创建但是表没有并且抛出此输出

System.NotImplementedException: The method or operation is not implemented.
   at MySQL.Data.EntityFrameworkCore.Migrations.Internal.MySQLHistoryRepository.get_ExistsSql()
   at Microsoft.EntityFrameworkCore.Migrations.HistoryRepository.Exists()
   at Microsoft.EntityFrameworkCore.Migrations.HistoryRepository.GetAppliedMigrations()
   at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
   at Microsoft.EntityFrameworkCore.Design.MigrationsOperations.UpdateDatabase(String targetMigration, String contextType)
   at Microsoft.EntityFrameworkCore.Tools.Cli.DatabaseUpdateCommand.<>c__DisplayClass0_0.<Configure>b__0()
   at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
   at Microsoft.EntityFrameworkCore.Tools.Cli.Program.Main(String[] args)
The method or operation is not implemented.

Answer 1

例外说它.Oracle的官方MySQL提供程序尚不支持迁移或脚手架.

它只会在第一次执行时创建数据库context.Database.EnsureCreated().之后所做的任何更改都不会被应用.您必须删除整个数据库并创建一个新数据库,丢失所有数据.

谢谢甲骨文;)

更新

随着7.0.6-IR31 软件包的发布,迁移确实有效,但脚手架仍然没有.