103 lines
2.8 KiB
C#
103 lines
2.8 KiB
C#
using Microsoft.EntityFrameworkCore;
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using SchoolScheduleContracts.BindingModels;
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using SchoolScheduleContracts.BusinessLogicsContracts;
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using SchoolScheduleContracts.SearchModels;
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using SchoolScheduleContracts.StoragesContracts;
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using SchoolScheduleContracts.ViewModels;
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using SchoolScheduleDataBaseImplement.Models;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace SchoolScheduleDataBaseImplement.Implements
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{
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public class StudentStorage : IStudentStorage
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{
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public List<StudentViewModel> GetFullList()
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{
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using var context = new SchoolScheduleDataBase();
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return context.Students.Include(x => x.Grade)
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.Select(x => x.GetViewModel)
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.ToList();
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}
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public List<StudentViewModel> GetFilteredList(StudentSearchModel model)
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{
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using var context = new SchoolScheduleDataBase();
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return context.Students.Include(x => x.Grade)
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.Where(x => (!model.Id.HasValue || x.Id == model.Id) && (string.IsNullOrEmpty(model.FullName) || x.FullName == model.FullName)
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&& (!model.GradeId.HasValue || x.GradeId == model.GradeId))
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.Select(x => x.GetViewModel)
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.ToList();
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}
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public StudentViewModel? GetElement(StudentSearchModel model)
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{
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if (!model.Id.HasValue)
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{
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return null;
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}
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using var context = new SchoolScheduleDataBase();
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return context.Students.Include(x => x.Grade)
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.FirstOrDefault(x =>
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(model.Id.HasValue && x.Id == model.Id))
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?.GetViewModel;
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}
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public StudentViewModel? Insert(StudentBindingModel model)
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{
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using var context = new SchoolScheduleDataBase();
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var newComponent = Student.Create(context, model);
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if (newComponent == null)
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{
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return null;
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}
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context.Students.Add(newComponent);
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context.SaveChanges();
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return newComponent.GetViewModel;
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}
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public StudentViewModel? Update(StudentBindingModel model)
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{
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using var context = new SchoolScheduleDataBase();
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using var transaction = context.Database.BeginTransaction();
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try
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{
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var component = context.Students.FirstOrDefault(x => x.Id ==
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model.Id);
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if (component == null)
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{
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return null;
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}
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if (component == null)
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{
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return null;
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}
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component.Update(context, model);
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context.SaveChanges();
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component.UpdateAttendance(context, model);
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transaction.Commit();
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return component.GetViewModel;
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}
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catch
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{
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transaction.Rollback();
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throw;
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}
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}
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public StudentViewModel? Delete(StudentBindingModel model)
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{
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using var context = new SchoolScheduleDataBase();
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var element = context.Students.FirstOrDefault(rec => rec.Id ==
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model.Id);
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if (element != null)
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{
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context.Students.Remove(element);
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context.SaveChanges();
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return element.GetViewModel;
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}
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return null;
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}
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}
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}
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