Pibd-22_Presnyakova.V.V_Jew.../JewelryStoreDatabaseImplement/Models/Jewel.cs

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C#
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2023-03-05 18:39:34 +04:00
using JewelryStoreDataModels.Models;
using JewelryStoreContracts.ViewModels;
using JewelryStoreContracts.BindingModels;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace JewelryStoreDatabaseImplement.Models
{
public class Jewel : IJewelModel
{
public int Id { get; set; }
[Required]
public string JewelName { get; set; } = string.Empty;
[Required]
public double Price { get; set; }
private Dictionary<int, (IComponentModel, int)>? _jewelComponents = null;
[NotMapped]
public Dictionary<int, (IComponentModel, int)> JewelComponents
{
get
{
if (_jewelComponents == null)
{
_jewelComponents = Components.ToDictionary(recPC => recPC.ComponentId, recPC => (recPC.Component as IComponentModel, recPC.Count));
}
return _jewelComponents;
}
}
[ForeignKey("JewelId")]
public virtual List<JewelComponent> Components { get; set; } = new();
[ForeignKey("JewelId")]
public virtual List<Order> Orders { get; set; } = new();
public static Jewel Create(JewelryStoreDataBase context, JewelBindingModel model)
{
return new Jewel()
{
Id = model.Id,
JewelName = model.JewelName,
Price = model.Price,
Components = model.JewelComponents.Select(x => new JewelComponent
{
Component = context.Components.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList()
};
}
public void Update(JewelBindingModel model)
{
JewelName = model.JewelName;
Price = model.Price;
}
public JewelViewModel GetViewModel => new()
{
Id = Id,
JewelName = JewelName,
Price = Price,
JewelComponents = JewelComponents
};
public void UpdateComponents(JewelryStoreDataBase context, JewelBindingModel model)
{
var jewelComponents = context.JewelComponents.Where(rec => rec.JewelId == model.Id).ToList();
if (jewelComponents != null && jewelComponents.Count > 0)
{ // удалили те, которых нет в модели
context.JewelComponents.RemoveRange(jewelComponents.Where(rec => !model.JewelComponents.ContainsKey(rec.ComponentId)));
context.SaveChanges();
// обновили количество у существующих записей
foreach (var updateComponent in jewelComponents)
{
updateComponent.Count = model.JewelComponents[updateComponent.ComponentId].Item2;
model.JewelComponents.Remove(updateComponent.ComponentId);
}
context.SaveChanges();
}
var jewel = context.Jewels.First(x => x.Id == Id);
foreach (var pc in model.JewelComponents)
{
context.JewelComponents.Add(new JewelComponent
{
Jewel = jewel,
Component = context.Components.First(x => x.Id == pc.Key),
Count = pc.Value.Item2
});
context.SaveChanges();
}
_jewelComponents = null;
}
}
}