ef-migrations

问题 I have some Key and Initial Vector, which I'm using for encryption purposes in my .NET app. Let's say they are: Key = 0x0102030405060708090A0B0C0D0E IV = 0xA1A2A3A4A5A6A7A8A9AAABACADAE In some cases I would like to perform encryption on the SQL Server (not in the app), but decrypt the data in the app. I thought that I'll might be able to create a temporary symmetric key in the DB and perform encryption: CREATE SYMMETRIC KEY #TempKey WITH ALGORITHM = AES_128 , IDENTITY_VALUE = ??? , KEY_SOURCE

问题 I am using EF6 for storing instances of the report class in my database. The database already contains data. Say I wanted to add a property to report , public class report { // ... some previous properties // ... new property: public string newProperty{ get; set; } } Now if I go to the package-manager console and execute add-migration Report-added-newProperty update-database I will get a file in the '/Migrations' folder adding a newProperty column to the table. This works fine. However, on

问题 I am using EF6 for storing instances of the report class in my database. The database already contains data. Say I wanted to add a property to report , public class report { // ... some previous properties // ... new property: public string newProperty{ get; set; } } Now if I go to the package-manager console and execute add-migration Report-added-newProperty update-database I will get a file in the '/Migrations' folder adding a newProperty column to the table. This works fine. However, on

问题 I know that you can manually manipulate the EF generated migration file to add in the 'defaultValue: 1' parameter to the 'AddColumn' method, but it does not seem to be generating the correct Oracle translation when I look at the generated script. See my EF migration 'Up' method below: public override void Up() { AddColumn("TABLE", "NEW_COLUMN", c => c.Decimal(nullable: false, precision: 10, scale: 0, defaultValue: 1)); } And after running 'update-database -script' I get the following

问题 We are building an app using code-first migrations. We had been using Entity Framework 5.0.0 RC, and we updated our NuGet package for Entity Framework. The database has been in sync with the models context. Code first migrations have been working fine for months. When we modify our models, and try to add a migration, or even query for migrations, we receive the System.InvalidOperationException for the model backing changed. Well, obviously it has, I'm trying to add a migration. We're not sure

问题 In my project we have a branch model that has a separate development branch and has a separate branch for each release. It may look like this: dev ______ ______ / \ / \ master --+---+----+---+---+----+----+--- (...) r1 \______/ r2 \_______/ So we develop on dev merge it to master and then we create a release branch (r1, r2, ...). We want to use EF 6 (manual not automatic) migrations but we have a question that we don't know how to answer. Imagine this: dev _(1)__ ____(4) / \ / \ master --+---

问题 In my project we have a branch model that has a separate development branch and has a separate branch for each release. It may look like this: dev ______ ______ / \ / \ master --+---+----+---+---+----+----+--- (...) r1 \______/ r2 \_______/ So we develop on dev merge it to master and then we create a release branch (r1, r2, ...). We want to use EF 6 (manual not automatic) migrations but we have a question that we don't know how to answer. Imagine this: dev _(1)__ ____(4) / \ / \ master --+---

问题 Platform .NET 4.5 and Entity Framework 6. Question I have the following code to execute a Migration: //The following function just returns an object of the Configuration() class //generated by code migrations var migratorConfig = currentMigrationProvider.CreateDbMigrationConfiguration(); var dbMigrator = new System.Data.Entity.Migrations.DbMigrator(migratorConfig); dbMigrator.Update(); The problem is that Update() function tries to create an instance of my DbContext class and for a few good

问题 Platform .NET 4.5 and Entity Framework 6. Question I have the following code to execute a Migration: //The following function just returns an object of the Configuration() class //generated by code migrations var migratorConfig = currentMigrationProvider.CreateDbMigrationConfiguration(); var dbMigrator = new System.Data.Entity.Migrations.DbMigrator(migratorConfig); dbMigrator.Update(); The problem is that Update() function tries to create an instance of my DbContext class and for a few good

问题 Platform .NET 4.5 and Entity Framework 6. Question I have the following code to execute a Migration: //The following function just returns an object of the Configuration() class //generated by code migrations var migratorConfig = currentMigrationProvider.CreateDbMigrationConfiguration(); var dbMigrator = new System.Data.Entity.Migrations.DbMigrator(migratorConfig); dbMigrator.Update(); The problem is that Update() function tries to create an instance of my DbContext class and for a few good