public static void UseSqlServer(
     [NotNull] this EPTDbContextOptions options,
     [CanBeNull] Action <SqlServerDbContextOptionsBuilder> sqlServerOptionsAction = null)
 {
     options.Configure(context =>
     {
         context.UseSqlServer(sqlServerOptionsAction);
     });
 }
        private static void PreConfigure <TDbContext>(
            EPTDbContextOptions options,
            DbContextConfigurationContext <TDbContext> context)
            where TDbContext : EPTDbContext <TDbContext>
        {
            foreach (var defaultPreConfigureAction in options.DefaultPreConfigureActions)
            {
                defaultPreConfigureAction.Invoke(context);
            }

            var preConfigureActions = options.PreConfigureActions.GetOrDefault(typeof(TDbContext));

            if (!preConfigureActions.IsNullOrEmpty())
            {
                foreach (var preConfigureAction in preConfigureActions)
                {
                    ((Action <DbContextConfigurationContext <TDbContext> >)preConfigureAction).Invoke(context);
                }
            }
        }
        private static void Configure <TDbContext>(
            EPTDbContextOptions options,
            DbContextConfigurationContext <TDbContext> context)
            where TDbContext : EPTDbContext <TDbContext>
        {
            var configureAction = options.ConfigureActions.GetOrDefault(typeof(TDbContext));

            if (configureAction != null)
            {
                ((Action <DbContextConfigurationContext <TDbContext> >)configureAction).Invoke(context);
            }
            else if (options.DefaultConfigureAction != null)
            {
                options.DefaultConfigureAction.Invoke(context);
            }
            else
            {
                throw new EPTException(
                          $"No configuration found for {typeof(DbContext).AssemblyQualifiedName}! Use services.Configure<EPTDbContextOptions>(...) to configure it.");
            }
        }