84 lines
2.8 KiB
C#
84 lines
2.8 KiB
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Text;
|
|||
|
|
using System.Threading.Tasks;
|
|||
|
|
using UniversityContracts.BindingModels;
|
|||
|
|
using UniversityContracts.SearchModels;
|
|||
|
|
using UniversityContracts.StorageContracts;
|
|||
|
|
using UniversityContracts.ViewModels;
|
|||
|
|
using UniversityDatabaseImplement.Models;
|
|||
|
|
// TODO
|
|||
|
|
namespace UniversityDatabaseImplement.Implements
|
|||
|
|
{
|
|||
|
|
public class TeacherStorage: ITeacherStorage
|
|||
|
|
{
|
|||
|
|
public List<TeacherViewModel> GetFullList()
|
|||
|
|
{
|
|||
|
|
using var context = new UniversityDatabase();
|
|||
|
|
return context.Teachers
|
|||
|
|
.Select(x => x.GetViewModel)
|
|||
|
|
.ToList();
|
|||
|
|
}
|
|||
|
|
public List<TeacherViewModel> GetFilteredList(TeacherSearchModel model)
|
|||
|
|
{
|
|||
|
|
if (string.IsNullOrEmpty(model.Name))
|
|||
|
|
{
|
|||
|
|
return new();
|
|||
|
|
}
|
|||
|
|
using var context = new UniversityDatabase();
|
|||
|
|
return context.Teachers
|
|||
|
|
.Where(x => x.Name.Contains(model.Name))
|
|||
|
|
.Select(x => x.GetViewModel)
|
|||
|
|
.ToList();
|
|||
|
|
}
|
|||
|
|
public TeacherViewModel? GetElement(TeacherSearchModel model)
|
|||
|
|
{
|
|||
|
|
if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
|
|||
|
|
{
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
using var context = new UniversityDatabase();
|
|||
|
|
return context.Teachers
|
|||
|
|
.FirstOrDefault(x =>
|
|||
|
|
(!string.IsNullOrEmpty(model.Name) && x.Name == model.Name) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
|
|||
|
|
}
|
|||
|
|
public TeacherViewModel? Insert(TeacherBindingModel model)
|
|||
|
|
{
|
|||
|
|
var newTeacher = Teacher.Create(model);
|
|||
|
|
if (newTeacher == null)
|
|||
|
|
{
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
using var context = new UniversityDatabase();
|
|||
|
|
context.Teachers.Add(newTeacher);
|
|||
|
|
context.SaveChanges();
|
|||
|
|
return newTeacher.GetViewModel;
|
|||
|
|
}
|
|||
|
|
public TeacherViewModel? Update(TeacherBindingModel model)
|
|||
|
|
{
|
|||
|
|
using var context = new UniversityDatabase();
|
|||
|
|
var component = context.Teachers.FirstOrDefault(x => x.Id == model.Id);
|
|||
|
|
if (component == null)
|
|||
|
|
{
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
component.Update(model);
|
|||
|
|
context.SaveChanges();
|
|||
|
|
return component.GetViewModel;
|
|||
|
|
}
|
|||
|
|
public TeacherViewModel? Delete(TeacherBindingModel model)
|
|||
|
|
{
|
|||
|
|
using var context = new UniversityDatabase();
|
|||
|
|
var element = context.Teachers.FirstOrDefault(rec => rec.Id == model.Id);
|
|||
|
|
if (element != null)
|
|||
|
|
{
|
|||
|
|
context.Teachers.Remove(element);
|
|||
|
|
context.SaveChanges();
|
|||
|
|
return element.GetViewModel;
|
|||
|
|
}
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|