oop_II-6/Service_Server/Service_Server/DB/Doctor_DB.cs

using Service_Server.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


namespace Service_Server.DB
{
    class Doctor_DB
    {
        public List<Doctor> GetAllDoctors()
        {
            using (DATABASE ctx = new DATABASE())
            {
                return ctx.Doctors.ToList();
            }
        }
        public bool CreateDoctor(Doctor doctor)
        {
            try
            {
                using (DATABASE ctx = new DATABASE())
                {
                    ctx.Doctors.Add(doctor);
                    ctx.SaveChanges();
                }
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public bool UpdateDoctor(Doctor doctor)
        {
            try
            {
                using (DATABASE ctx = new DATABASE())
                {
                    ctx.Doctors.Attach(doctor);
                    ctx.Entry(doctor).State = System.Data.Entity.EntityState.Modified;
                    ctx.SaveChanges();
                }
                return true;
            }
            catch (Exception)
            {
                return false;
            }

        }
        public bool DeleteDoctor(Doctor doctor)
        {
            try
            {
                using (DATABASE ctx = new DATABASE())
                {
                    ctx.Doctors.Attach(doctor);
                    ctx.Doctors.Remove(doctor);
                    ctx.SaveChanges();
                }
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }
    }
}