private async Task AddIfEmpty <TModel>(List <TModel> models, bool hasIdentityKey = true) where TModel : class
{
if (await _db.Set <TModel>().AnyAsync())
{
return;
}
var strategy = _db.Database.CreateExecutionStrategy();
await strategy.ExecuteAsync(async() =>
{
await using var transaction = await _db.Database.BeginTransactionAsync();
await _db.Set <TModel>().AddRangeAsync(models);
await Save <TModel>(hasIdentityKey);
await transaction.CommitAsync();
});
}
private void DeleteTable <T>() where T : class
{
_db.RemoveRange(_db.Set <T>());
}