C# 实体框架在执行UPDATE语句时引发异常
我有一个EF6驱动的程序,第一次运行时在UPDATE语句上崩溃。 我尝试通过数据注释重命名这些列(我没有测试fluid API,因为它应该生成相同的数据库)。我还查看了类的可视性,但自从上次程序运行以来,它们没有改变,因此可以排除。 我已经看了差不多一天了,但是找不到错误。数据库在我看来很好,代码编译没有问题。此外,任何C# 实体框架在执行UPDATE语句时引发异常,c#,entity-framework,C#,Entity Framework,我有一个EF6驱动的程序,第一次运行时在UPDATE语句上崩溃。 我尝试通过数据注释重命名这些列(我没有测试fluid API,因为它应该生成相同的数据库)。我还查看了类的可视性,但自从上次程序运行以来,它们没有改变,因此可以排除。 我已经看了差不多一天了,但是找不到错误。数据库在我看来很好,代码编译没有问题。此外,任何updatedatabase语句都会毫无例外地执行 以下是堆栈跟踪: System.Data.DataException was unhandled by user code
updatedatabase
语句都会毫无例外地执行
以下是堆栈跟踪:
System.Data.DataException was unhandled by user code
HResult=-2146233087
Message=An exception occurred while initializing the database. See the InnerException for details.
Source=EntityFramework
StackTrace:
bei System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action)
bei System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization()
bei System.Data.Entity.Internal.LazyInternalContext.<InitializeDatabase>b__4(InternalContext c)
bei System.Data.Entity.Internal.RetryAction`1.PerformAction(TInput input)
bei System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action`1 action)
bei System.Data.Entity.Internal.LazyInternalContext.InitializeDatabase()
bei System.Data.Entity.Internal.InternalContext.Initialize()
bei System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)
bei System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()
bei System.Data.Entity.Internal.Linq.InternalSet`1.Include(String path)
bei System.Data.Entity.Infrastructure.DbQuery`1.Include(String path)
bei System.Data.Entity.QueryableExtensions.Include[T](IQueryable`1 source, String path)
bei System.Data.Entity.QueryableExtensions.Include[T,TProperty](IQueryable`1 source, Expression`1 path)
bei RpgTools.Characters.CharacterRepository.FindAll() in e:\Users\Robert\Documents\Visual Studio 2013\Projects\RpgTools\Modules\Characters\CharacterRepository.cs:Zeile 88.
bei RpgTools.CharacterPresenter.ViewModels.CharactersViewModel.LoadCharacters() in e:\Users\Robert\Documents\Visual Studio 2013\Projects\RpgTools\Modules\CharacterPresenter\ViewModels\CharactersViewModel.cs:Zeile 169.
InnerException: System.Data.Entity.Infrastructure.DbUpdateException
HResult=-2146233087
Message=An error occurred while updating the entries. See the inner exception for details.
Source=EntityFramework
StackTrace:
bei System.Data.Entity.Internal.InternalContext.SaveChanges()
bei System.Data.Entity.Internal.LazyInternalContext.SaveChanges()
bei System.Data.Entity.DbContext.SaveChanges()
bei System.Data.Entity.Migrations.DbMigrator.SeedDatabase()
bei System.Data.Entity.Migrations.Infrastructure.MigratorBase.SeedDatabase()
bei System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
bei System.Data.Entity.Migrations.Infrastructure.MigratorBase.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
bei System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
bei System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClassc.<Update>b__b()
bei System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
bei System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
bei System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
bei System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update()
bei System.Data.Entity.MigrateDatabaseToLatestVersion`2.InitializeDatabase(TContext context)
bei System.Data.Entity.Internal.InternalContext.<>c__DisplayClassf`1.<CreateInitializationAction>b__e()
bei System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action)
InnerException: System.Data.Entity.Core.UpdateException
HResult=-2146233087
Message=An error occurred while updating the entries. See the inner exception for details.
Source=EntityFramework
StackTrace:
bei System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
bei System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.<Update>b__2(UpdateTranslator ut)
bei System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update[T](T noChangesResult, Func`2 updateFunction)
bei System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update()
bei System.Data.Entity.Core.Objects.ObjectContext.<SaveChangesToStore>b__35()
bei System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
bei System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction)
bei System.Data.Entity.Core.Objects.ObjectContext.<>c__DisplayClass2a.<SaveChangesInternal>b__27()
bei System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
bei System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
bei System.Data.Entity.Core.Objects.ObjectContext.SaveChanges(SaveOptions options)
bei System.Data.Entity.Internal.InternalContext.SaveChanges()
InnerException: System.Data.SqlClient.SqlException
HResult=-2146232060
Message=The UPDATE statement conflicted with the FOREIGN KEY constraint "FK_Characters.Characters_Characters.Appearances_AppearanceId". The conflict occurred in database "RpgTools", table "Characters.Appearances", column 'Id'.
The statement has been terminated.
Source=.Net SqlClient Data Provider
ErrorCode=-2146232060
Class=16
LineNumber=1
Number=547
Procedure=""
Server=(LocalDb)\mssqllocaldb
State=0
StackTrace:
bei System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
bei System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
bei System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
bei System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
bei System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
bei System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
bei System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
bei System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
bei System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
bei System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
bei System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
bei System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
bei System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
bei System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.Execute(Dictionary`2 identifierValues, List`1 generatedValues)
bei System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
InnerException:
以下是表示我的数据的类:
[Table("Character")]
internal class CharacterItem
{
[Key]
public Guid Id { get; set; }
public string Name { get; set; }
public string Nickname { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public string Biography { get; set; }
public string Motto { get; set; }
public int Age { get; set; }
public Guid PortraitsId { get; set; }
public PortraitItem Portrait { get; set; }
public Guid MetadataId { get; set; }
public CharacterMetadataItem Metadata { get; set; }
public Guid AppearancesId { get; set; }
public AppearanceItem Appearance { get; set; }
public Guid OriginId { get; set; }
}
[Table("Appearances")]
internal sealed class AppearanceItem
{
[Key]
public Guid Id { get; set; }
public Genders Gender { get; set; }
public int Height { get; set; }
public int Weight { get; set; }
public string SkinColour { get; set; }
public string EyeColour { get; set; }
public string SpecialFeatures { get; set; }
public string HairColour { get; set; }
public string LipColour { get; set; }
}
下面是DB模式的SQL语句
CREATE TABLE [Characters].[Character] (
[Id] UNIQUEIDENTIFIER NOT NULL,
[Name] NVARCHAR (MAX) NULL,
[Nickname] NVARCHAR (MAX) NULL,
[Title] NVARCHAR (MAX) NULL,
[Description] NVARCHAR (MAX) NULL,
[Biography] NVARCHAR (MAX) NULL,
[Motto] NVARCHAR (MAX) NULL,
[Age] INT NOT NULL,
[PortraitsId] UNIQUEIDENTIFIER NOT NULL,
[MetadataId] UNIQUEIDENTIFIER NOT NULL,
[AppearancesId] UNIQUEIDENTIFIER NOT NULL,
[OriginId] UNIQUEIDENTIFIER NOT NULL,
[Appearance_Id] UNIQUEIDENTIFIER NULL,
[Portrait_Id] UNIQUEIDENTIFIER NULL,
CONSTRAINT [PK_Characters.Character] PRIMARY KEY CLUSTERED ([Id] ASC),
CONSTRAINT [FK_Characters.Character_Characters.Appearances_Appearance_Id] FOREIGN KEY ([Appearance_Id]) REFERENCES [Characters].[Appearances] ([Id]),
CONSTRAINT [FK_Characters.Character_Characters.Metadata_MetadataId] FOREIGN KEY ([MetadataId]) REFERENCES [Characters].[Metadata] ([Id]) ON DELETE CASCADE,
CONSTRAINT [FK_Characters.Character_Characters.Portraits_Portrait_Id] FOREIGN KEY ([Portrait_Id]) REFERENCES [Characters].[Portraits] ([Id])
);
GO
CREATE NONCLUSTERED INDEX [IX_MetadataId]
ON [Characters].[Character]([MetadataId] ASC);
GO
CREATE NONCLUSTERED INDEX [IX_Appearance_Id]
ON [Characters].[Character]([Appearance_Id] ASC);
GO
CREATE NONCLUSTERED INDEX [IX_Portrait_Id]
ON [Characters].[Character]([Portrait_Id] ASC);
CREATE TABLE [Characters].[Appearances] (
[Id] UNIQUEIDENTIFIER NOT NULL,
[Gender] INT NOT NULL,
[Height] INT NOT NULL,
[Weight] INT NOT NULL,
[SkinColour] NVARCHAR (MAX) NULL,
[EyeColour] NVARCHAR (MAX) NULL,
[SpecialFeatures] NVARCHAR (MAX) NULL,
[HairColour] NVARCHAR (MAX) NULL,
[LipColour] NVARCHAR (MAX) NULL,
CONSTRAINT [PK_Characters.Appearances] PRIMARY KEY CLUSTERED ([Id] ASC)
);
根据John Castleman的建议,我将之前由FluidAPI完成的模式初始化更改为DataAnnotations。然后,我添加了另一个迁移并应用了另一个
更新数据库
,现在我在运行命令时出错,而不仅仅是在启动程序时。
以下是错误和我的迁移:
public partial class v0_1_0 : DbMigration
{
public override void Up()
{
CreateTable(
"Characters.Character",
c => new
{
Id = c.Guid(nullable: false),
Name = c.String(),
Nickname = c.String(),
Title = c.String(),
Description = c.String(),
Biography = c.String(),
Motto = c.String(),
Age = c.Int(nullable: false),
PortraitsId = c.Guid(nullable: false),
MetadataId = c.Guid(nullable: false),
AppearancesId = c.Guid(nullable: false),
OriginId = c.Guid(nullable: false),
Appearance_Id = c.Guid(),
Portrait_Id = c.Guid(),
})
.PrimaryKey(t => t.Id)
.ForeignKey("Characters.Appearances", t => t.Appearance_Id)
.ForeignKey("Characters.Metadata", t => t.MetadataId, cascadeDelete: true)
.ForeignKey("Characters.Portraits", t => t.Portrait_Id)
.Index(t => t.MetadataId)
.Index(t => t.Appearance_Id)
.Index(t => t.Portrait_Id);
CreateTable(
"Characters.Appearances",
c => new
{
Id = c.Guid(nullable: false),
Gender = c.Int(nullable: false),
Height = c.Int(nullable: false),
Weight = c.Int(nullable: false),
SkinColour = c.String(),
EyeColour = c.String(),
SpecialFeatures = c.String(),
HairColour = c.String(),
LipColour = c.String(),
})
.PrimaryKey(t => t.Id);
CreateTable(
"Characters.Metadata",
c => new
{
Id = c.Guid(nullable: false),
Tags = c.String(),
VoiceActor = c.String(),
Occurrences = c.String(),
})
.PrimaryKey(t => t.Id);
CreateTable(
"Characters.Portraits",
c => new
{
Id = c.Guid(nullable: false),
Data = c.Binary(),
})
.PrimaryKey(t => t.Id);
}
public override void Down()
{
DropForeignKey("Characters.Character", "Portrait_Id", "Characters.Portraits");
DropForeignKey("Characters.Character", "MetadataId", "Characters.Metadata");
DropForeignKey("Characters.Character", "Appearance_Id", "Characters.Appearances");
DropIndex("Characters.Character", new[] { "Portrait_Id" });
DropIndex("Characters.Character", new[] { "Appearance_Id" });
DropIndex("Characters.Character", new[] { "MetadataId" });
DropTable("Characters.Portraits");
DropTable("Characters.Metadata");
DropTable("Characters.Appearances");
DropTable("Characters.Character");
}
}
public partial class v0_1_1 : DbMigration
{
public override void Up()
{
}
public override void Down()
{
}
}
这是启用了-verbose开关的堆栈跟踪。我不得不删除旧的,因为我达到了字符限制
Using StartUp project 'Main'.
Using NuGet project 'Characters'.
Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
Target database is: 'RpgTools' (DataSource: (LocalDb)\mssqllocaldb, Provider: System.Data.SqlClient, Origin: Configuration).
No pending explicit migrations.
Running Seed method.
System.Data.Entity.Infrastructure.DbUpdateException: An error occurred while updating the entries. See the inner exception for details. ---> System.Data.Entity.Core.UpdateException: An error occurred while updating the entries. See the inner exception for details. ---> System.Data.SqlClient.SqlException: The UPDATE statement conflicted with the FOREIGN KEY constraint "FK_Characters.Character_Characters.Metadata_MetadataId". The conflict occurred in database "RpgTools", table "Characters.Metadata", column 'Id'.
The statement has been terminated.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
at System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.Execute(Dictionary`2 identifierValues, List`1 generatedValues)
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
--- End of inner exception stack trace ---
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
at System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.<Update>b__2(UpdateTranslator ut)
at System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update[T](T noChangesResult, Func`2 updateFunction)
at System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update()
at System.Data.Entity.Core.Objects.ObjectContext.<SaveChangesToStore>b__35()
at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction)
at System.Data.Entity.Core.Objects.ObjectContext.<>c__DisplayClass2a.<SaveChangesInternal>b__27()
at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChanges(SaveOptions options)
at System.Data.Entity.Internal.InternalContext.SaveChanges()
--- End of inner exception stack trace ---
at System.Data.Entity.Internal.InternalContext.SaveChanges()
at System.Data.Entity.Internal.LazyInternalContext.SaveChanges()
at System.Data.Entity.DbContext.SaveChanges()
at System.Data.Entity.Migrations.DbMigrator.SeedDatabase()
at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.SeedDatabase()
at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClassc.<Update>b__b()
at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.Run()
at System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate)
at System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate)
at System.Data.Entity.Migrations.Design.ToolingFacade.Run(BaseRunner runner)
at System.Data.Entity.Migrations.Design.ToolingFacade.Update(String targetMigration, Boolean force)
at System.Data.Entity.Migrations.UpdateDatabaseCommand.<>c__DisplayClass2.<.ctor>b__0()
at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command)
An error occurred while updating the entries. See the inner exception for details.
有趣的是:即使第二次迁移是空的,updatedatabase
命令也会失败。第一次迁移运行正常,但启动程序时出现错误。
这里的附加信息是我的存储库的构造函数及其配置文件
internal CharacterRepository(IConverter<CharacterItem, Character> characterReadConverter, IConverter<Character, CharacterItem> characterWriteConverter)
: base("name=RpgTools")
{
Database.SetInitializer(new MigrateDatabaseToLatestVersion<CharacterRepository, Configuration>(true));
this.Characters = this.Set<CharacterItem>();
this.readConverter = new DataConverter<CharacterItem, Character>(characterReadConverter);
this.bulkReadConverter = new DictionaryRangeConverter<CharacterItem, Guid, Character>(characterReadConverter, c => c.Id);
this.writeConverter = new DataConverter<Character, CharacterItem>(characterWriteConverter);
}
internal sealed class Configuration : DbMigrationsConfiguration<CharacterRepository>
{
public Configuration()
{
this.AutomaticMigrationsEnabled = false;
}
protected override void Seed(CharacterRepository context)
{
Guid[] ids =
{
new Guid("13cbbdc8-d2e6-4a9a-9525-fa9043a53082"),
new Guid("3a34fd9b-a6e3-4567-af83-840ddf4417ba"),
new Guid("b1256f9f-8a35-416a-8f22-6be91ffb4041"),
new Guid("2e24283d-1ba0-4cc7-b49c-975937e8512c"),
new Guid("2f66d513-1839-4a26-be7e-39243d6807cf")
};
CharacterItem char1 = new CharacterItem
{
Age = 22,
Appearance = new AppearanceItem
{
EyeColour = "Green",
Gender = Genders.Female,
HairColour = "Red",
Height = 188,
Id = ids[1],
LipColour = "red",
SkinColour = "fair",
Weight = 76
},
Id = ids[0],
Metadata = new CharacterMetadataItem
{
Id = ids[2],
Occurrences = string.Empty,
Tags = "Female; Protagonist"
},
Motto = null,
Name = "Sarah Fenix",
Nickname = string.Empty,
Portrait = null,
Description = "Ravia Hagen's spouse",
Title = string.Empty
};
var char2 = new CharacterItem
{
Age = 22,
Appearance = new AppearanceItem
{
EyeColour = "Green",
Gender = Genders.Female,
HairColour = "Red",
Height = 188,
Id = ids[4],
LipColour = "red",
SkinColour = "fair",
Weight = 76
},
Id = ids[3],
Metadata = new CharacterMetadataItem
{
Id = ids[5],
Occurrences = string.Empty,
Tags = "Female; Protagonist",
VoiceActor = string.Empty
},
Motto = null,
Name = "Ravia Hagen",
Nickname = string.Empty,
Portrait = null,
Description = "Sarah Fenix's spouse",
Title = string.Empty
};
context.Characters.AddOrUpdate(c => c.Id, char1, char2);
}
}
内部字符库(IConverter characterReadConverter、IConverter characterWriteConverter)
:base(“name=RpgTools”)
{
SetInitializer(新的MigrateDatabaseToLatestVersion(true));
this.Characters=this.Set();
this.readConverter=新数据转换器(characterReadConverter);
this.bulkReadConverter=新字典RangeConverter(characterReadConverter,c=>c.Id);
this.writeConverter=新数据转换器(characterWriteConverter);
}
内部密封类配置:DBMigOptionsConfiguration
{
公共配置()
{
this.AutomaticMigrationsEnabled=false;
}
受保护的覆盖无效种子(CharacterRepository上下文)
{
Guid[]ID=
{
新Guid(“13cbbdc8-d2e6-4a9a-9525-fa9043a53082”),
新Guid(“3a34fd9b-a6e3-4567-af83-840ddf4417ba”),
新Guid(“b1256f9f-8a35-416a-8f22-6be91ffb4041”),
新Guid(“2e24283d-1ba0-4cc7-b49c-975937e8512c”),
新Guid(“2f66d513-1839-4a26-be7e-39243d6807cf”)
};
CharacterItem char1=新的CharacterItem
{
年龄=22岁,
外观=新外观项目
{
eyecolor=“绿色”,
性别=性别。女性,
HairColour=“红色”,
高度=188,
Id=Id[1],
LipColour=“红色”,
skincolor=“fair”,
重量=76
},
Id=Id[0],
元数据=新字符MetadataItem
{
Id=Id[2],
事件=字符串。空,
Tags=“女性;主角”
},
座右铭=null,
Name=“Sarah Fenix”,
昵称=string.Empty,
纵向=空,
Description=“Ravia Hagen的配偶”,
Title=string.Empty
};
var char2=新字符项
{
年龄=22岁,
外观=新外观项目
{
eyecolor=“绿色”,
性别=性别。女性,
HairColour=“红色”,
高度=188,
Id=Id[4],
LipColour=“红色”,
skincolor=“fair”,
重量=76
},
Id=Id[3],
元数据=新字符MetadataItem
{
Id=Id[5],
事件=字符串。空,
Tags=“女性;主角”,
VoiceActor=string.Empty
},
座右铭=null,
Name=“Ravia Hagen”,
昵称=string.Empty,
纵向=空,
Description=“Sarah Fenix的配偶”,
Title=string.Empty
};
AddOrUpdate(c=>c.Id,char1,char2);
}
}
这似乎是一个数据问题:
Message=UPDATE语句与外键冲突
约束
“FK\u字符。字符。\u字符。外观\u外观ID”。这个
数据库“RpgTools”表中发生冲突
“字符.外观”,列“Id”
问题不在于更新本身,而在于您试图更新的记录会打破外键约束 UPDATE语句与外键约束冲突 “FK\u字符。字符。\u字符。外观\u外观ID”。这个 数据库“RpgTools”表中发生冲突 “字符.外观”,列“Id” 我们没有您的DB模式,因此您必须搜索数据库,以找出有关的
FK\u字符、字符、外观\u AppearanceId
,然后确保您尝试更新的记录在FK约束下是“合法的”。尝试[表(“字符”,模式=“字符”)]
或仅[Table(“Characters.Character”)]
也应该有效。否则,EF将尝试使用[dbo].[Character]
如果最近引入了模式差异,那么这很可能是问题的根源
根据问题更新进行编辑:
不确定你是如何通过编译器抛出一个<代码> ARAYOUTOFFUNCTIOVE ——有时EF隐含空合并(但考虑到你的内部异常与<代码>元数据> ID <代码>有关,我认为它怀疑
internal CharacterRepository(IConverter<CharacterItem, Character> characterReadConverter, IConverter<Character, CharacterItem> characterWriteConverter)
: base("name=RpgTools")
{
Database.SetInitializer(new MigrateDatabaseToLatestVersion<CharacterRepository, Configuration>(true));
this.Characters = this.Set<CharacterItem>();
this.readConverter = new DataConverter<CharacterItem, Character>(characterReadConverter);
this.bulkReadConverter = new DictionaryRangeConverter<CharacterItem, Guid, Character>(characterReadConverter, c => c.Id);
this.writeConverter = new DataConverter<Character, CharacterItem>(characterWriteConverter);
}
internal sealed class Configuration : DbMigrationsConfiguration<CharacterRepository>
{
public Configuration()
{
this.AutomaticMigrationsEnabled = false;
}
protected override void Seed(CharacterRepository context)
{
Guid[] ids =
{
new Guid("13cbbdc8-d2e6-4a9a-9525-fa9043a53082"),
new Guid("3a34fd9b-a6e3-4567-af83-840ddf4417ba"),
new Guid("b1256f9f-8a35-416a-8f22-6be91ffb4041"),
new Guid("2e24283d-1ba0-4cc7-b49c-975937e8512c"),
new Guid("2f66d513-1839-4a26-be7e-39243d6807cf")
};
CharacterItem char1 = new CharacterItem
{
Age = 22,
Appearance = new AppearanceItem
{
EyeColour = "Green",
Gender = Genders.Female,
HairColour = "Red",
Height = 188,
Id = ids[1],
LipColour = "red",
SkinColour = "fair",
Weight = 76
},
Id = ids[0],
Metadata = new CharacterMetadataItem
{
Id = ids[2],
Occurrences = string.Empty,
Tags = "Female; Protagonist"
},
Motto = null,
Name = "Sarah Fenix",
Nickname = string.Empty,
Portrait = null,
Description = "Ravia Hagen's spouse",
Title = string.Empty
};
var char2 = new CharacterItem
{
Age = 22,
Appearance = new AppearanceItem
{
EyeColour = "Green",
Gender = Genders.Female,
HairColour = "Red",
Height = 188,
Id = ids[4],
LipColour = "red",
SkinColour = "fair",
Weight = 76
},
Id = ids[3],
Metadata = new CharacterMetadataItem
{
Id = ids[5],
Occurrences = string.Empty,
Tags = "Female; Protagonist",
VoiceActor = string.Empty
},
Motto = null,
Name = "Ravia Hagen",
Nickname = string.Empty,
Portrait = null,
Description = "Sarah Fenix's spouse",
Title = string.Empty
};
context.Characters.AddOrUpdate(c => c.Id, char1, char2);
}
}