BWPM/BlazorApp/Controller/Schueler/SchuelerController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using BWPMModels;
using BlazorApp.Helper;
using Newtonsoft.Json;
using System.Data;
using Microsoft.AspNetCore.Mvc;

namespace BlazorApp.Controller

{

    public class SchuelerController : ControllerBase
    {
        public static List<Schueler> GetAllData()
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select * from Schueler", false, true);
            return dbh.ConvertDataTable<Schueler>(dbh.dsdaten.Tables[0]);
        }

        public static List<Schueler> GetByID(int ID)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select * from Schueler where id=" + ID.ToString(), false, true);
            return dbh.ConvertDataTable<Schueler>(dbh.dsdaten.Tables[0]);
        }

        public static List<Schueler> GetByKlasseID(int ID)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select * from Schueler where aktiv=1 and klasseid=" + ID.ToString()+" order by name, vorname", false, true);
            return dbh.ConvertDataTable<Schueler>(dbh.dsdaten.Tables[0]);
        }
        public static List<Schueler> GetLast()
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select top 1 * from Schueler order by mutiert_am desc", false, true);
            return dbh.ConvertDataTable<Schueler>(dbh.dsdaten.Tables[0]);
        }
        public static List<Schueler> GetLastByMutierer(string Mutierer)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select top 1 * from Schueler where mutierer='" + Mutierer + "' order by mutiert_am desc", false, true);
            return dbh.ConvertDataTable<Schueler>(dbh.dsdaten.Tables[0]);
        }

        public static List<Schueler> GetbyUserSQL(string SQL)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata(SQL, false, true);
            return dbh.ConvertDataTable<Schueler>(dbh.dsdaten.Tables[0]);
        }

        public static int POST(Schueler Schuelerdata)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabeldata_for_Update("Select top 1 * from [Schueler] where id=-1", false, true);
            DataRow dr = dbh.dsdaten.Tables[0].NewRow();
            Schuelerdata.GetType().GetProperties().ToList().ForEach(f =>
            {
                try
                {
                    if (f.PropertyType == typeof(DateTime))
                    {
                        dr[f.Name] = (DateTime)f.GetValue(Schuelerdata, null);

                    }
                    else
                    {
                        dr[f.Name] = f.GetValue(Schuelerdata, null);
                    }
                }
                catch (Exception ex) { string s = ex.Message; }
            });
            dbh.dsdaten.Tables[0].Rows.Add(dr);
            dbh.Update_Tabeldata();
            List<Schueler> tmplst = GetLastByMutierer(Schuelerdata.mutierer);
            return tmplst.First<Schueler>().ID;
        }

        public static void PUT(Schueler Schuelerdata)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabeldata_for_Update("Select top 1 * from [Schueler] where id=" + Schuelerdata.ID.ToString(), false, true);
            DataRow dr = dbh.dsdaten.Tables[0].Rows[0];
            Schuelerdata.GetType().GetProperties().ToList().ForEach(f =>
            {
                try
                {
                    if (f.PropertyType == typeof(DateTime))
                    {
                        dr[f.Name] = (DateTime)f.GetValue(Schuelerdata, null);
                    }
                    else
                    {
                        dr[f.Name] = f.GetValue(Schuelerdata, null);
                    }
                }
                catch (Exception ex) { string s = ex.Message; }
            });
            dbh.Update_Tabeldata();

        }

        public static void DELETE(Schueler Schuelerdata)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabeldata_for_Update("delete from [Schueler] where id=" + Schuelerdata.ID.ToString(), false, true);
        }
    }



}