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私はnopCommerceベースのプロジェクトで作業しています。カスタムエンティティを更新するために、EF移行を有効にしたいと思います。コンテキストクラスは、次のように定義されてアセンブリでコンテキスト・タイプが見つかりませんでした。EF6
Using StartUp project 'Nop.Web'.
System.Data.Entity.Migrations.Infrastructure.MigrationsException: No context type was found in the assembly 'Nop.Plugin.Payments.Deposit'.
at System.Data.Entity.Utilities.TypeFinder.FindType(Type baseType, String typeName, Func`2 filter, Func`2 noType, Func`3 multipleTypes, Func`3 noTypeWithName, Func`3 multipleTypesWithName)
at System.Data.Entity.Migrations.Design.ToolingFacade.GetContextTypeRunner.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.GetContextType(String contextTypeName)
at System.Data.Entity.Migrations.EnableMigrationsCommand.FindContextToEnable(String contextTypeName)
at System.Data.Entity.Migrations.EnableMigrationsCommand.<>c__DisplayClass2.<.ctor>b__0()
at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command)
No context type was found in the assembly 'Nop.Plugin.Payments.Deposit'.
：
public class DepositTransactionObjectContext : DbContext, IDbContext
{
public DepositTransactionObjectContext(string nameOrConnectionString) : base(nameOrConnectionString) { }
public DepositTransactionObjectContext() { }
public IList<TEntity> ExecuteStoredProcedureList<TEntity>(string commandText, params object[] parameters) where TEntity : BaseEntity, new()
{
throw new System.NotImplementedException();
}
public IEnumerable<TElement> SqlQuery<TElement>(string sql, params object[] parameters)
{
throw new System.NotImplementedException();
}
public int ExecuteSqlCommand(string sql, bool doNotEnsureTransaction = false, int? timeout = null, params object[] parameters)
{
throw new System.NotImplementedException();
}
public void Detach(object entity)
{
throw new System.NotImplementedException();
}
public bool ProxyCreationEnabled { get; set; }
public bool AutoDetectChangesEnabled { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Configurations.Add(new DepositTransactionMap());
base.OnModelCreating(modelBuilder);
}
public string CreateDatabaseInstallationScript()
{
return ((IObjectContextAdapter)this).ObjectContext.CreateDatabaseScript();
}
public void Install()
{
//It's required to set initializer to null (for SQL Server Compact).
//otherwise, you'll get something like "The model backing the 'your context name' context has changed since the database was created. Consider using Code First Migrations to update the database"
Database.SetInitializer<DepositTransactionObjectContext>(null);
Database.ExecuteSqlCommand(CreateDatabaseInstallationScript());
SaveChanges();
}
public void Uninstall()
{
this.DropPluginTable("DepositTransaction");
}
public new IDbSet<TEntity> Set<TEntity>() where TEntity : BaseEntity
{
return base.Set<TEntity>();
}
}
私は空のプロジェクトを作成し、そこにマイグレーションを有効にした
Enable-Migrations -StartUpProjectName nop.web -ContextProjectName Nop.Plugin.Payments.Deposit -verbose
とエラーが表示されます。だから私は、次のコマンドを実行します。 。私は、同じ質問をたくさん読み、
Using StartUp project 'Nop.Web'.
Using NuGet project 'Nop.Plugin.Payments.Deposit'.
System.Data.Entity.Migrations.Infrastructure.MigrationsException: No migrations configuration type was found in the assembly 'Nop.Plugin.Payments.Deposit'. (In Visual Studio you can use the Enable-Migrations command from Package Manager Console to add a migrations configuration).
at System.Data.Entity.Utilities.TypeFinder.FindType(Type baseType, String typeName, Func`2 filter, Func`2 noType, Func`3 multipleTypes, Func`3 noTypeWithName, Func`3 multipleTypesWithName)
at System.Data.Entity.Migrations.Utilities.MigrationsConfigurationFinder.FindMigrationsConfiguration(Type contextType, String configurationTypeName, Func`2 noType, Func`3 multipleTypes, Func`3 noTypeWithName, Func`3 multipleTypesWithName)
at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.FindConfiguration()
at System.Data.Entity.Migrations.Design.ToolingFacade.ScaffoldRunner.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.Scaffold(String migrationName, String language, String rootNamespace, Boolean ignoreChanges)
at System.Data.Entity.Migrations.AddMigrationCommand.Execute(String name, Boolean force, Boolean ignoreChanges)
at System.Data.Entity.Migrations.AddMigrationCommand.<>c__DisplayClass2.<.ctor>b__0()
at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command)
No migrations configuration type was found in the assembly 'Nop.Plugin.Payments.Deposit'. (In Visual Studio you can use the Enable-Migrations command from Package Manager Console to add a migrations configuration).
：
namespace Nop.Plugin.Payments.Deposit.Migrations
{
using Data;
using System.Data.Entity.Migrations;
internal sealed class Configuration : DbMigrationsConfiguration<DepositTransactionObjectContext>
{
public Configuration()
{
AutomaticMigrationsEnabled = true;
}
protected override void Seed(DepositTransactionObjectContext context)
{
}
}
}
Iアドインの移行を実行したときしかし、私は次のエラーを取得する：そして、私はそれは次のようになりますので、Configuration.csをコピーして調整してきましたその理由は、Enable-Migrationsコマンドレットで指定されたプロジェクトが間違っていたためです（コンテキストが定義されていない）。しかし、あなたが見ることができるように私の場合ではありません。
他に何が原因である可能性がありますか？
私もそれを試しました。結果は同じです。 – Ralfeus