ISEbd-21_Tukaeva_A_A_School/School/SchoolDatabaseImplements/Models/Lesson.cs

using SchoolContracts.BindingModel;
using SchoolContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SchoolDatabaseImplement.Models
{
	public class Lesson
	{
		public int Id { get; private set; }
		[Required]
		public string LessonName { get; private set; } = string.Empty;
		[Required]
		public double LessonPrice { get; private set; }
		[Required]
		public int EmployeeId { get; private set; }
		public virtual Employee Employee { get; private set; } = new();
		[ForeignKey("LessonId")]
		public virtual List<CircleLesson> CircleLessons { get; set; } = new();
		[ForeignKey("LessonId")]
		public virtual List<Payment> Payments { get; set; } = new();
		public static Lesson? Create(SchoolDatabase context, LessonBindingModel model)
		{
			if (model == null)
			{
				return null;
			}
			return new Lesson()
			{
				Id = model.Id,
				LessonName = model.LessonName,
				LessonPrice = model.LessonPrice,
				Employee = context.Employees.First(x => x.Id == model.EmployeeId)
			};
		}
		public static Lesson Create(LessonViewModel model)
		{
			return new Lesson
			{
				Id = model.Id,
				LessonName = model.LessonName,
				LessonPrice = model.LessonPrice,
				EmployeeId = model.EmployeeId
			};
		}
		public void Update(LessonBindingModel model)
		{
			if (model == null)
			{
				return;
			}
			LessonName = model.LessonName;
			LessonPrice = model.LessonPrice;
			EmployeeId = model.EmployeeId;
		}
		public LessonViewModel GetViewModel => new()
		{
			Id = Id,
			LessonName = LessonName,
			LessonPrice = LessonPrice,
			EmployeeId = EmployeeId
		};
	}
}