public IHttpActionResult GetClassificationList([FromUri] string lang = "en", [FromUri] int skip = 0, [FromUri] int take = 200, [FromUri] string asc = "", [FromUri] string desc = "", [FromUri] string where = "", [FromUri] string extra = "") { using (CSSPDBContext db = new CSSPDBContext(DatabaseType)) { ClassificationService classificationService = new ClassificationService(new Query() { Lang = lang }, db, ContactID); if (extra == "A") // QueryString contains [extra=A] { classificationService.Query = classificationService.FillQuery(typeof(ClassificationExtraA), lang, skip, take, asc, desc, where, extra); if (classificationService.Query.HasErrors) { return(Ok(new List <ClassificationExtraA>() { new ClassificationExtraA() { HasErrors = classificationService.Query.HasErrors, ValidationResults = classificationService.Query.ValidationResults, }, }.ToList())); } else { return(Ok(classificationService.GetClassificationExtraAList().ToList())); } } else if (extra == "B") // QueryString contains [extra=B] { classificationService.Query = classificationService.FillQuery(typeof(ClassificationExtraB), lang, skip, take, asc, desc, where, extra); if (classificationService.Query.HasErrors) { return(Ok(new List <ClassificationExtraB>() { new ClassificationExtraB() { HasErrors = classificationService.Query.HasErrors, ValidationResults = classificationService.Query.ValidationResults, }, }.ToList())); } else { return(Ok(classificationService.GetClassificationExtraBList().ToList())); } } else // QueryString has no parameter [extra] or extra is empty { classificationService.Query = classificationService.FillQuery(typeof(Classification), lang, skip, take, asc, desc, where, extra); if (classificationService.Query.HasErrors) { return(Ok(new List <Classification>() { new Classification() { HasErrors = classificationService.Query.HasErrors, ValidationResults = classificationService.Query.ValidationResults, }, }.ToList())); } else { return(Ok(classificationService.GetClassificationList().ToList())); } } } }