BWPM/BlazorApp/Controller/Klasse/KlasseController.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 KlasseController : ControllerBase
    {
        public static List<Klasse> GetAllData()
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select * from Klasse", false, true);
            return dbh.ConvertDataTable<Klasse>(dbh.dsdaten.Tables[0]);
        }

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

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


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

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

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

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

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

        }

        public static DataTable Klassenpruefung_Schueler(int KlasseID)
        {
            dbhelper dbh = new dbhelper();
            DataTable spparams = new DataTable();
            spparams.Columns.Clear();
            spparams.Rows.Clear();
            spparams.Columns.Add("Paramname");
            spparams.Columns.Add("Paramvalue");

            DataRow paramdata = spparams.NewRow();
            paramdata[0] = "Param1";
            paramdata[1] = KlasseID.ToString();


            return  dbh.Get_Tabledata("chkklasse", true, false, spparams);
            

        }

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


    }



}