106 lines
4.0 KiB
C#
106 lines
4.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.ComponentModel.DataAnnotations.Schema;
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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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using UniversityContracts.BindingModels;
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using UniversityContracts.ViewModels;
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using UniversityDataModels.Models;
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namespace UniversityDatabaseImplement.Models
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{
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public class PlanOfStudy : IPlanOfStudyModel
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{
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public int Id { get; private set; }
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public int WorkerId { get; private set; }
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[Required]
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public string Profile { get; private set; } = string.Empty;
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[Required]
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public string FormOfStudy { get; private set; } = string.Empty;
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private Dictionary<int, ITeacherModel>? _planOfStudyTeachers = null;
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[NotMapped]
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public Dictionary<int, ITeacherModel> PlanOfStudyTeachers
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{
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get
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{
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if (_planOfStudyTeachers == null)
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{
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_planOfStudyTeachers = Teachers
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.ToDictionary(recPC => recPC.TeacherId, recPC => recPC.Teacher as ITeacherModel);
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}
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return _planOfStudyTeachers;
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}
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}
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[ForeignKey("PlanOfStudyId")]
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public virtual List<PlanOfStudyTeacher> Teachers { get; set; } = new();
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[ForeignKey("PlanOfStudyId")]
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public virtual List<Student> Students { get; set; } = new();
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public virtual Worker Worker { get; set; } = new();
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public static PlanOfStudy Create(UniversityDatabase context, PlanOfStudyBindingModel model)
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{
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return new PlanOfStudy()
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{
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Id = model.Id,
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WorkerId = model.WorkerId,
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Profile = model.Profile,
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FormOfStudy = model.FormOfStudy,
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Teachers = model.PlanOfStudyTeachers.Select(x => new
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PlanOfStudyTeacher
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{
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Teacher = context.Teachers.First(y => y.Id == x.Key)
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}).ToList()
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};
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}
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public void Update(PlanOfStudyBindingModel model)
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{
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if (model == null)
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{
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return;
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}
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Id = model.Id;
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WorkerId = model.WorkerId;
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Profile = model.Profile;
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FormOfStudy = model.FormOfStudy;
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}
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public void UpdateTeachers(UniversityDatabase context,
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PlanOfStudyBindingModel model)
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{
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var planOfStudyTeachers = context.PlanOfStudyTeachers
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.Where(rec => rec.PlanOfStudyId == model.Id).ToList();
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if (planOfStudyTeachers != null && planOfStudyTeachers.Count > 0)
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{ // удалили те, которых нет в модели
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context.PlanOfStudyTeachers.RemoveRange(planOfStudyTeachers.Where(rec
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=> !model.PlanOfStudyTeachers.ContainsKey(rec.TeacherId)));
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context.SaveChanges();
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// обновили количество у существующих записей
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foreach (var updateTeacher in planOfStudyTeachers)
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{
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model.PlanOfStudyTeachers.Remove(updateTeacher.TeacherId);
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}
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context.SaveChanges();
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}
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var planOfStudy = context.PlanOfStudys.First(x => x.Id == Id);
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foreach (var pc in model.PlanOfStudyTeachers)
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{
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context.PlanOfStudyTeachers.Add(new PlanOfStudyTeacher
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{
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PlanOfStudy = planOfStudy,
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Teacher = context.Teachers.First(x => x.Id == pc.Key)
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});
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context.SaveChanges();
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}
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_planOfStudyTeachers = null;
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}
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public PlanOfStudyViewModel GetViewModel => new()
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{
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Id = Id,
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WorkerId = WorkerId,
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Profile = Profile,
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FormOfStudy = FormOfStudy,
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PlanOfStudyTeachers = PlanOfStudyTeachers,
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};
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}
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}
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