Database.CompatibleWithModel n EF7 ( detecting the need to run migrations) - entity-framework-core

Question

In EF6 I was able to check whether the database needed upgrading and get an OK from the (power) user
I made use of
dbContext.Database.CompatibleWithModel and db.RunMigrations()
I can't find these methods in EF7. Can I still do this in EF7?
So far I have the following
namespace Console4Migration
{
class Program
{
static void Main(string[] args)
{
var builder = new ConfigurationBuilder();
builder.AddJsonFile("appsettings.json");
var config = builder.Build();
var connectionString = config.GetConnectionString("ApplicationDatabase");
var optionsBuilder = new DbContextOptionsBuilder<ApiDbContext>();
optionsBuilder.UseSqlServer(connectionString);
var options = new DbContextOptions<ApiDbContext>();
var db = new ApiDbContext(options);
var numUsers = db.Users.Count();
Console.WriteLine("finished opening the database");
}
}
}
and
public class ApiDbContext : IdentityDbContext<ApplicationUser>
{
public ApiDbContext(DbContextOptions<ApiDbContext> options)
: base(options)
{
}
}
public class ApplicationUser : IdentityUser
{
}

Answer 1

I was able to create a partial solution as shown here that detects the need to run migrations and optionally runs them.
However it does not check for whether the model is compatible which I would still like to do.
using System;
using System.Text;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using MyApi.Entities;
namespace Console4Migration
{
class Program
{
static void Main(string[] args)
{
var builder = new ConfigurationBuilder();
builder.AddJsonFile("appsettings.json");
var config = builder.Build();
var connectionString = config.GetConnectionString("MyDatabase");
var optionsBuilder = new DbContextOptionsBuilder<ApiDbContext>();
optionsBuilder.UseSqlServer(connectionString);
var options = optionsBuilder.Options;
var db = new ApiDbContext(options);
if (EFFunctions.HasOutstandingMigrations(db))
{
var sb = new StringBuilder();
sb.AppendLine("Upgrades are needed. Enter Y to upgrade");
sb.AppendLine(EFFunctions.GetUpgradesDescription(db));
Console.WriteLine(sb);
var answer = Console.ReadKey();
if (answer.Key != ConsoleKey.Y)
{
Console.WriteLine("No upgrade performed");
Console.ReadKey();
return;
}
db.Database.Migrate();
Console.WriteLine("Migration performed");
Console.ReadKey();
return;
}
Console.WriteLine("There are no migrations outstanding");
Console.ReadKey();
}
}
}
and
using System.Linq;
using System.Text;
using Microsoft.EntityFrameworkCore;
public static class EFFunctions
{
public static string GetUpgradesDescription(DbContext db)
{
var migrations = db.Database.GetPendingMigrations();
var sb = new StringBuilder();
var enumerable = migrations as string[] ?? migrations.ToArray();
if (!enumerable.Any()) return sb.ToString();
foreach (var migration in enumerable)
{
sb.AppendLine(migration);
}
return sb.ToString();
}
public static bool HasOutstandingMigrations(DbContext db)
{
return GetUpgradesDescription(db).Length == 0;
}
}