/// <summary>
/// Includes provided options creator that takes responsibility of configuring built type
/// </summary>
/// <param name="optionsCreator">Options creator concrete object that cannot be null</param>
/// <returns></returns>
public DbContextBuilder WithOnConfiguring(IDbContextOptionsCreator optionsCreator)
{
if (optionsCreator == null)
{
throw new ArgumentNullException("Options creator cannot be null");
}
OptionsCreator = optionsCreator;
return(this);
}
public void CheckIfOptionsCreatorIsRegistered()
{
Mock <IDbContextOptionsCreator> optionsCreatorMock = new Mock <IDbContextOptionsCreator>();
IDbContextOptionsCreator optionsCreator = optionsCreatorMock.Object;
DbContextBuilder contextBuilder = new DbContextBuilder()
.WithOnConfiguring(optionsCreator);
ServiceCollection services = new ServiceCollection();
services.AddDbContext(contextBuilder);
ServiceDescriptor optionsCreatorDescriptor = services
.SingleOrDefault(d => d.ServiceType == typeof(IDbContextOptionsCreator));
Assert.NotNull(optionsCreatorDescriptor);
}
/// <summary>
/// Extensions method that enables registering DbContext based on provided builder
/// </summary>
/// <param name="services"></param>
/// <param name="contextBuilder">DbContext subtype builder that cannot be null</param>
public static void AddDbContext(this IServiceCollection services, DbContextBuilder contextBuilder)
{
if (contextBuilder == null)
{
throw new ArgumentNullException("Context builder cannot be null");
}
IDbContextOptionsCreator optionsCreator = contextBuilder.OptionsCreator ?? new DelegatedDbContextOptionsCreator(_ => {});
IDbContextModelCreator modelCreator = contextBuilder.ModelCreator ?? new DelegatedDbContextModelCreator(_ => {});
Type dbContextType = contextBuilder.Build();
services.AddSingleton(typeof(IDbContextOptionsCreator), optionsCreator);
services.AddSingleton(typeof(IDbContextModelCreator), modelCreator);
services.AddScoped(typeof(DbContext), dbContextType);
}
public ConfigurableDbContext(IDbContextOptionsCreator optionsCreator, IDbContextModelCreator modelCreator)
{
OptionsCreator = optionsCreator;
ModelCreator = modelCreator;
}
