CourseWork_SchoolStudyAgain/SchoolAgainStudy/SchoolAgainStudyDataBaseImplements/Models/Material.cs

using SchoolAgainStudyContracts.BindingModel;
using SchoolAgainStudyContracts.ViewModel;
using SchoolAgainStudyDataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SchoolAgainStudyDataBaseImplements.Models
{
    public class Material : IMaterial
    {
        [Required]
        public string Title { get; set; } = string.Empty;
        [Required]
        public string SphereUse { get; set; } = string.Empty;

        public int Id { get; set; }

        [ForeignKey("MaterialId")]
        public virtual List<LessonMaterial> LessonMaterials { get; set; } = new();
        [ForeignKey("MaterialId")]
        public virtual List<TaskMaterial> TaskMaterial { get; set; } = new();
        [ForeignKey("MaterialId")]
        public virtual List<TeacherMaterial> TeacherMaterial { get; set; } = new();

        public static Material? Create(MaterialBindingModel model)
        {
            if (model == null)
            {
                return null;
            }
            return new Material()
            {
                Id = model.Id,
                Title = model.Title,
                SphereUse = model.SphereUse
            };
        }

        public static Material Create(MaterialViewModel model)
        {
            return new Material
            {
                Id = model.Id,
                Title = model.Title,
                SphereUse = model.SphereUse
            };
        }

        public void Update(MaterialBindingModel model)
        {
            if (model == null)
            {
                return;
            }
            Title = model.Title;
            SphereUse = model.SphereUse;
        }

        public MaterialViewModel GetViewModel => new()
        {
            Id = Id,
            Title = Title,
            SphereUse = SphereUse
        };
    }
}