ISEbd-21_Putilin_P.A._Preca.../PrecastConcretePlant/PrecastConcretePlantDatabaseImplement/Shop.cs

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C#
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using PrecastConcretePlantContracts.BindingModels;
using PrecastConcretePlantContracts.ViewModels;
using PrecastConcretePlantDataModels;
using System.ComponentModel.DataAnnotations.Schema;
using System.ComponentModel.DataAnnotations;
using PrecastConcretePlantDataModels.Models;
namespace PrecastConcretePlantDatabaseImplement
{
public class Shop : IShopModel
{
[Required]
public string Name { get; private set; } = string.Empty;
[Required]
public string Address { get; private set; } = string.Empty;
[Required]
public int MaxCountReinforceds { get; private set; }
public DateTime DateOpening { get; private set; }
private Dictionary<int, (IReinforcedModel, int)>? _cachedReinforceds = null;
[NotMapped]
public Dictionary<int, (IReinforcedModel, int)> Reinforceds
{
get
{
if (_cachedReinforceds == null)
{
using var context = new PrecastConcretePlantDatabase();
_cachedReinforceds = ShopReinforceds
.ToDictionary(x => x.ReinforcedId, x => (context.Reinforceds
.FirstOrDefault(y => y.Id == x.ReinforcedId)! as IReinforcedModel, x.Count));
}
return _cachedReinforceds;
}
}
public int Id { get; private set; }
[ForeignKey("ShopId")]
public virtual List<ShopReinforced> ShopReinforceds { get; set; } = new();
public static Shop? Create(PrecastConcretePlantDatabase context, ShopBindingModel? model)
{
if (model == null)
{
return null;
}
return new Shop()
{
Id = model.Id,
Name = model.Name,
Address = model.Address,
DateOpening = model.DateOpening,
MaxCountReinforceds = model.MaxCountReinforceds,
ShopReinforceds = model.Reinforceds.Select(x => new ShopReinforced
{
Reinforced = context.Reinforceds.FirstOrDefault(y => y.Id == x.Key)!,
Count = x.Value.Item2,
}).ToList()
};
}
public void Update(ShopBindingModel? model)
{
if (model == null)
{
return;
}
Name = model.Name;
Address = model.Address;
DateOpening = model.DateOpening;
}
public ShopViewModel GetViewModel => new()
{
Id = Id,
Name = Name,
Address = Address,
Reinforceds = Reinforceds,
DateOpening = DateOpening,
MaxCountReinforceds = MaxCountReinforceds,
};
public void UpdateReinforceds(PrecastConcretePlantDatabase context, ShopBindingModel model)
{
var shopReinforceds = context.ShopReinforceds
.Where(rec => rec.ShopId == model.Id)
.ToList();
// удалили те, которых нет в модели
if (shopReinforceds != null && shopReinforceds.Count > 0)
{
context.ShopReinforceds
.RemoveRange(shopReinforceds
.Where(rec => !model.Reinforceds
.ContainsKey(rec.ReinforcedId)));
// обновили количество у существующих записей
foreach (var updateReinforced in shopReinforceds.Where(x => model.Reinforceds.ContainsKey(x.ReinforcedId)))
{
updateReinforced.Count = model.Reinforceds[updateReinforced.ReinforcedId].Item2;
model.Reinforceds.Remove(updateReinforced.ReinforcedId);
}
}
var shop = context.Shops.First(x => x.Id == model.Id);
shop.ShopReinforceds.AddRange(model.Reinforceds.Select(x => new ShopReinforced
{
Reinforced = context.Reinforceds.First(y => y.Id == x.Key),
Count = x.Value.Item2,
}).Except(shopReinforceds ?? new()));
context.SaveChanges();
_cachedReinforceds = null;
}
}
}