Enable Entity Framework migrations in Mono


Question

I've started building an ASP.NET MVC3 project on Mac OS using Xamarin Studio. I now want to add new properties and models to the project but I can't for the life of me work out how to run the Nuget Package Manager console in order to run the Enable-Migrations command.

Am I asking too much? Is this possible or will I have to go back to Visual Studio on Windows?

Accepted Answer

All of the Entity Framework Migrations commands are just thin wrappers over an underlying API. To enable migrations, simply create a new class that derives from DbMigrationsConfiguration<TContext> in your project.

For Add-Migration use code similar to the following.

var config = new MyMigrationsConfiguration();
var scaffolder = new MigrationScaffolder(config);
var migration = scaffolder.Scaffold("Migration1");

File.WriteAllText(migration.MigrationId + ".cs", migration.UserCode);

File.WriteAllText(migration.MigrationId + ".Designer.cs", migration.DesignerCode);

using (var writer = new ResXResourceWriter(migration.MigrationId + ".resx"))
{
    foreach (var resource in migration.Resources)
    {
        writer.AddResource(resource.Key, resource.Value);
    }
}

For Update-Database see Running & Scripting Migrations from Code by Rowan Miller.





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