107 lines
3.2 KiB
C#
107 lines
3.2 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations.Schema;
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using System.ComponentModel.DataAnnotations;
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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 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 Trip : ITripModel
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{
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public int Id { get; set; }
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[Required]
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public string TripName { get; set; } = string.Empty;
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[Required]
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public DateTime TripDate { get; set; }
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[Required]
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public int GuideId { get; set; }
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public virtual Guide Guide { get; set; }
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private Dictionary<int, IPlaceModel>? _tripPlaces = null;
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[NotMapped]
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public Dictionary<int, IPlaceModel> TripPlaces
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{
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get
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{
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if (_tripPlaces == null)
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{
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_tripPlaces = Places
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.ToDictionary(recPC => recPC.PlaceId, recPC => recPC.Place as IPlaceModel);
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}
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return _tripPlaces;
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}
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}
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[ForeignKey("TripId")]
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public virtual List<TripPlace> Places { get; set; } = new();
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public static Trip? Create(TravelAgencyDatabase context, TripBindingModel? 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 Trip()
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{
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Id = model.Id,
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TripName = model.TripName,
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TripDate = model.TripDate,
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GuideId = model.GuideId,
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Places = model.TripPlaces.Select(x => new TripPlace
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{
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Place = context.Places.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(TripBindingModel? 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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TripName = model.TripName;
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TripDate = model.TripDate;
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}
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public TripViewModel GetViewModel => new()
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{
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Id = Id,
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TripName = TripName,
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TripDate = TripDate,
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GuideId = GuideId,
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TripPlaces = TripPlaces
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};
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public void UpdatePlaces(TravelAgencyDatabase context, TripBindingModel model)
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{
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var tripPlaces = context.TripPlaces.Where(rec => rec.TripId == model.Id).ToList();
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if (tripPlaces != null && tripPlaces.Count > 0)
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{ // удалили те, которых нет в модели
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context.TripPlaces.RemoveRange(tripPlaces.Where(rec => !model.TripPlaces.ContainsKey(rec.PlaceId)));
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context.SaveChanges();
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}
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var trip = context.Trips.First(x => x.Id == Id);
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foreach (var et in model.TripPlaces)
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{
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context.TripPlaces.Add(new TripPlace
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{
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Trip = trip,
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Place = context.Places.First(x => x.Id == et.Key)
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});
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context.SaveChanges();
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}
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_tripPlaces = null;
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}
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}
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}
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