![]() I'm getting "Cannot change DataType of a column once it has data. I am facing with the issue with InsertBulkAsync where my poco class has nullable properties. Searching the internet, I found this old point, but it doesn't help much:Īnd I didn't find anything that would help to solve the NPoco project Wiki.įirstly this is a great library and thanks a ton !! Public interface IEmployeeRepository: IRepository Public interface IRepository where T : class Public async Task Update(Employee entity)Īnd the classes IRepository e IEmployeeRepository: namespace Sql.Append(" and is null or DocumentNumber = and is null or Active = await db.FetchAsync Sql.Append(" is null or Id = and is null or like '%' + + '%')") Public async Task> RetreaveSql(Employee? entity = null) ![]() & (string.IsNullOrEmpty(entity.DocumentNumber) || x.DocumentNumber = entity.DocumentNumber) (string.IsNullOrEmpty(entity.Name) || x.Name.Contains(entity.Name)) Public async Task> Retreave(Employee? entity = null) Throw new NotImplementedException("Method DetailsSql not implemented") Public async Task DetailsSql(Employee? entity = null) Return await db.SingleOrDefaultByIdAsync(entity.Id) Public async Task Details(Employee? entity = null) Public async Task Delete(Employee entity) Using (IDatabase db = new NPocoContext().Get()) Public async Task Create(Employee entity) Public class EmployeeRepository : IEmployeeRepository X.UsingDatabase(() => new SqlServerDatabase(AppSettings.SqlServerConnection)) Throw new Exception("DbFactory is null") įluentConfig fluentConfig = FluentMappingConfiguration.Configure(new EmployeeMapping()) The PK of an Event record is the same as the PK of the detail record like so: This inheritance is mirrored in the database as a central Event table with common data and other separate/individual detail tables (depending on the event type). I've got several derived classes all inheriting from an abstract Event class. I've got some questions around using an abstract base class with npoco. How do we do it with suggested Query ? Examples?įirst off, thank you for all your hard work on this library. Sql += m => m.Where(x => x.EndDate >= DateTime.Today || x.EndDate = null) Func, SqlExpression> sql = m => m.Where(x => x.Nr = nr) Anyone who makes use of IQueryProvider can just call ToList() whenever and wherever they feel like and it will hit the database (possibly wrong replica). Now, with QueryProvider directly coupled to specific IDatabase right from the start and directly exposing ToList() etc methods, all DAL logic cannot be contained within repositories. We could control the execution of the query or check the validity. We were able to construct Linq queries to pass the by to ANY IDatabase (via repositories), where we could optionally make them part of a transaction or execute against the replica. The Query simply does not have the same power, a lot of our code is now broken. Gcl = db.Fetch (string.I have tried to update to the latest version, but with the FetchBy gone we cannot use it. Using (var db = new NPoco.Database(DatabaseConnection.Connection, )) want to change this to some minimum value of the TIMESTAMP data type. NOTE: This hard-coding a minimum date value is a temporary fix. Using (var db = new NPoco.Database(conn)) Using (var conn = new NpgsqlConnection(nnectionString)) Minval = minval = null ? new DateTime(year: 2000, month: 0, day: 0) : minval Public IEnumerable GetPage(int page, int pageSize, DateTime minval) Change the value of page and pageSize to alter the amount of / Retrieve a lsit of Company one page at a time.
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