/// <summary>
/// Ensures all changes on tenanted entities that are about to be saved to the underlying datastore only reference the currently scoped tenant.
/// If a tenanted entity has their tenant ID set to that of the 'unset tenant ID' value it will then be set to the ID of the currently scoped tenant.
/// </summary>
/// <typeparam name="TTenantKey">Type that represents the tenant key.</typeparam>
/// <param name="context">Context that has multi-tenancy configured and is calling SaveChanges() or SaveChangesAsync().</param>
/// <param name="tenantId">ID of the currently scoped tenant.</param>
/// <param name="tenancyModelState">The same state object that was passed out of <see cref="ModelBuilder"/>.HasTenancy().</param>
/// <param name="logger">For logging tenancy access related traces.</param>
public static void EnsureTenancy <TTenantKey>(this DbContext context, TTenantKey tenantId, TenancyModelState <TTenantKey> tenancyModelState, ILogger logger = null)
where TTenantKey : class
{
context.EnsureTenancy((object)tenantId, tenancyModelState, logger);
}