109 lines
3.6 KiB
C#
109 lines
3.6 KiB
C#
using Microsoft.EntityFrameworkCore;
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using System.ComponentModel.DataAnnotations;
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using System.ComponentModel.DataAnnotations.Schema;
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using TravelAgencyContracts.BindingModels;
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using TravelAgencyContracts.ViewModels;
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using TravelAgencyDataModels.Models;
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namespace TravelAgencyDatabaseImplement.Models
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{
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public class Excursion : IExcursionModel
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{
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public int Id { get; set; }
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[Required]
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public string ExcursionName { get; set; } = string.Empty;
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public string ExcursionDescription { get; set; } = string.Empty;
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[Required]
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public double Price { get; set; }
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[Required]
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public int UserId { get; set; }
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[DeleteBehavior(DeleteBehavior.Restrict)]
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public virtual User User { get; set; }
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private Dictionary<int, ITourModel>? _excursionTours = null;
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[NotMapped]
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public Dictionary<int, ITourModel> ExcursionTours
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{
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get
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{
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if (_excursionTours == null)
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{
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_excursionTours = Tours
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.ToDictionary(recPC => recPC.TourId, recPC => recPC.Tour as ITourModel);
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}
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return _excursionTours;
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}
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}
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[ForeignKey("ExcursionId")]
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public virtual List<ExcursionTour> Tours { get; set; } = new();
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public static Excursion? Create(TravelAgencyDatabase context, ExcursionBindingModel? model)
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{
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if (model == null)
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{
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return null;
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}
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return new Excursion()
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{
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Id = model.Id,
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ExcursionName = model.ExcursionName,
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ExcursionDescription = model.ExcursionDescription,
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Price = model.Price,
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UserId = model.UserId,
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Tours = model.ExcursionTours.Select(x => new ExcursionTour
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{
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Tour = context.Tours.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(ExcursionBindingModel? 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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ExcursionName = model.ExcursionName;
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ExcursionDescription = model.ExcursionDescription;
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Price = model.Price;
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}
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public ExcursionViewModel GetViewModel => new()
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{
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Id = Id,
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ExcursionName = ExcursionName,
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ExcursionDescription = ExcursionDescription,
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Price = Price,
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UserId = UserId,
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ExcursionTours = ExcursionTours
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};
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public void UpdateTours(TravelAgencyDatabase context, ExcursionBindingModel model)
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{
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var excursionTours = context.ExcursionTours.Where(rec => rec.ExcursionId == model.Id).ToList();
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if (excursionTours != null && excursionTours.Count > 0)
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{ // удалили те, которых нет в модели
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context.ExcursionTours.RemoveRange(excursionTours.Where(rec => !model.ExcursionTours.ContainsKey(rec.TourId)));
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context.SaveChanges();
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}
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var excursion = context.Excursions.First(x => x.Id == Id);
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foreach (var et in model.ExcursionTours)
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{
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context.ExcursionTours.Add(new ExcursionTour
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{
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Excursion = excursion,
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Tour = context.Tours.First(x => x.Id == et.Key)
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});
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context.SaveChanges();
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}
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_excursionTours = null;
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}
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}
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}
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