private IDesignTimeServices FindIDesignTimeServices(EFCoreDaoFactory factory)
{
var providerAssemblies = _providerAssemblies[factory.FactoryName];
foreach (var assembly in providerAssemblies)
{
foreach (Type type in assembly.ExportedTypes)
{
if (type.IsClass && type != typeof(IDesignTimeServices) && typeof(IDesignTimeServices).IsAssignableFrom(type))
{
return((IDesignTimeServices)type.GetConstructor(new Type[] { }).Invoke(null));
}
}
}
return(null);
}
private EFCoreDao CreateDao(EFCoreDaoFactory factory, string assembly)
{
assembly = assembly ?? Assembly.GetEntryAssembly().GetName().Name;
return((EFCoreDao)factory.CreateDao(
options =>
{
if (!string.IsNullOrWhiteSpace(assembly))
{
var extensions = factory.dbContextOptions.Extensions;
var extension = extensions.FirstOrDefault(e => typeof(RelationalOptionsExtension).IsAssignableFrom(e.GetType()));
extension = ((RelationalOptionsExtension)extension).WithMigrationsAssembly(assembly);
var builder = new DbContextOptionsBuilder <EFCoreDao>();
var newOptions = builder.Options.WithExtension(extension);
return newOptions;
}
return options;
},
//强制输入sessioncontext的环境变量，让dbcontext刷新OnModelCreating
new SessionContext(_serviceProvider)
));
}
