EF7 migration in Pluralsight course

Manually Editing an EF7 Migration Class & Snapshot

The EF7 ...migration add... command (to date, beta5) compares the model classes defined in the ...DbContext... against the current model snapshot, creates a new migration class, and updates the model snapshot....I need to modify the migration to make it generate different DDL SQL. As an example, EF7 uses sequences for SQL Server auto-increment valu...

EF7 Exclude Class/DbSet From Add Migration Operation

As of beta6, what works best for me is ensuring that the ...DbContextModelSnapshot... includes mappings for the replicated entities....Once the entities are mapped the migration scaffolding process compares the model snapshot to the entities to determine if there are changes. Since the entity classes match the model snapshot, no migrations are gene...

EF 7 Beta 8 -> EF7 RC1 - No longer can create migrations

After attempting to change my existing project from beta 8 to RC1 I get the following after running ...dnx ef migrations add Init...System.TypeLoadException: Could not load type 'Microsoft.Data.Entity.Scaffolding.SqliteDesignTimeServices, EntityFramework.Sqlite.Design'. at Microsoft.Data.Entity.Design.Internal.DesignTimeServicesBuilder.ConfigureP...

EF7 add migrations error when using NotMapped attribute in entity properties

I am not able to use the [NotMapped] attribute on entity properties because the migration add command throws an error below;...Here is my POCO;...using System; using System.Collections.Generic; using System.ComponentModel.DataAnnotations; using System.ComponentModel.DataAnnotations.Schema; namespace Domain.Entities { public partial class Emplo...

EF7: The term 'add-migration' is not recognized as the name of a cmdlet

This is what worked for me to solve this issue:...Run:...Install-Package Microsoft.EntityFrameworkCore.Tools –Pre ...In project.json add this (if not there already) to the "tools" section:..."Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview4-final", ...Useful reference: ...https://docs.efproject.net/en/latest/platforms/aspnetcore/new-db.html

EF7 Code First - Property cannot exist on entity type 'object' when generating migration

Problem...When trying to create a initial migration of my EF7 Code First database by executing from the command line:...dnx ef migrations add Initial ...I get the error:...System.InvalidOperationException: The property 'ExerciseTemplateId' cannot exist on entity type 'object' because the property is not marked as shadow state and no corresponding C...

EF7 Migrations - The corresponding CLR type for entity type '' is not instantiable

Please see: ...https://docs.microsoft.com/en-us/ef/core/modeling/inheritance...If you don’t want to expose a DbSet for one or more entities in the hierarchy, you can use the Fluent API to ensure they are included in the model....If you don't want to have to create a ...DbSet... for each subclass then you have to explicitly define them in the ...O...

dotnet ef migration list not finding migrations in Migration folder

I was following ...this tutorial... (On linux and converted to F#) Migrations were created successfully (3 files in the ...Migrations... directory.) But ...dotnet ef database update... says everything is up to date and ...dotnet ef migrations list... says no migrations found. When I check the created sqlite file manually it contains only an empty ...

Deleted database & migration file, can't make new migrations nor revert old migrations, what now?

My workflow with my ASP.NET Core app: Whenever I make changes that affect the database, I revert the old migration, make a new migration, apply it. Because this is still early development I think it makes sense to not pollute the project with lots of migration files. Usually I call this temporary migration file ...Initial..., hoping that one of the...

EF Core "no migrations found" despite Migrations folder containing migration files

We have a .NET Core project set up with a Migrations folder containing several migrations that we were able to successfully run in our Development database in the past by executing ...dotnet ef database update.... However, we are now trying to apply those changes to our Staging database and it isn't working. We've set our ...ASPNETCORE_ENVIRONMENT....