OnModel在實體框架中創建未定義7

我想在EF7中設置我的模型的關係，但我遇到了問題：OnModelCreating方法和DbModelBuilder未定義。OnModel在實體框架中創建未定義7

過去，我使用EF6，但現在我嘗試遷移到EF7。

這裏是我的代碼

protected override void OnModelCreating(DbModelBuilder modelBuilder) 
{ 
     //Section -> many Category 
     modelBuilder.Entity<Section>() 
      .HasMany<Category>(p => p.Categories) 
      .WithRequired(p => p.Section); 

     //Section -> many PriceCategory 
     modelBuilder.Entity<Section>() 
      .HasMany<PriceCategory>(p => p.PriceCategories) 
      .WithRequired(p => p.Section); 

     //Category - many Procedures 
     modelBuilder.Entity<Category>() 
      .HasMany<Procedure>(p => p.Procedures) 
      .WithRequired(p => p.Category); 

      //PriceCategory - many PriceProcedures 
      modelBuilder.Entity<PriceCategory>() 
      .HasMany<PriceProcedure>(p => p.PriceProcedures) 
      .WithRequired(p => p.PriceCategory); 
}

我進口：

using Microsoft.Data.Entity; 
using Domain.Models;

我project.json：

{ 
    "version": "1.0.0-*", 
    "description": "Domain Class Library", 
    "authors": [ "Garrus" ], 
    "tags": [ "" ], 
    "projectUrl": "", 
    "licenseUrl": "", 

    "dependencies": { 
     "EntityFramework.Commands": "7.0.0-rc1-final", 
     "EntityFramework.Core": "7.0.0-rc1-final", 
     "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final", 
     "Microsoft.CSharp": "4.0.1-beta-23516", 
     "System.Collections": "4.0.11-beta-23516", 
     "System.Linq": "4.0.1-beta-23516", 
     "System.Runtime": "4.0.21-beta-23516", 
     "System.Threading": "4.0.11-beta-23516" 
    }, 

    "frameworks": { 
    "net451": { }, 
    "dnxcore50": {} 
    } 
}

你能幫助我嗎？也許我忘了一些NuGet軟件包，或者有另一種方法可以在EF7中建立模型關係？

來源

2015-11-19 Alexey Markov

我剛剛知道，** OnConfiguring **方法也是未定義的。 –

應該是這樣的：

protected override void OnModelCreating(ModelBuilder modelBuilder) 
{ 
    .... 
}

我猜DbModelBuilder更名爲模型構建器

來源

2015-11-19 18:12:46

保存了我的培根。 – radpin

嗯......我有很多probllems的，所以我創建新的ASP.NET MVC 5項目，在那裏複製我的舊模型，控制器，視圖等，這一切都OK。（我認爲，這是一個奇怪的魔法）

這裏說overrided方法，一切都OK

 protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) 
     { 
      base.OnConfiguring(optionsBuilder); 
     } 

     protected override void OnModelCreating(ModelBuilder modelBuilder) 
     { 
      base.OnModelCreating(modelBuilder); 
     }

我usings是相同的問題。和domain的project.json，也許它對於面臨同樣錯誤的人可能很有用。

{ 
    "version": "1.0.0-*", 
    "description": "Domain Class Library", 
    "authors": [ "Garrus" ], 
    "tags": [ "" ], 
    "projectUrl": "", 
    "licenseUrl": "", 

    "dependencies": { 
     "Microsoft.CSharp": "4.0.1-beta-23516", 
     "System.Collections": "4.0.11-beta-23516", 
     "System.Linq": "4.0.1-beta-23516", 
     "System.Runtime": "4.0.21-beta-23516", 
     "System.Threading": "4.0.11-beta-23516", 
     "EntityFramework.Core": "7.0.0-rc1-final", 
     "EntityFramework.Commands": "7.0.0-rc1-final", 
     "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final" 
    }, 

    "frameworks": { 
    "net451": { }, 
    "dnxcore50": { } 
    } 
}

來源

2015-11-19 21:17:55

OnModel在實體框架中創建未定義7

回答

相關問題