PIbd-23_Vrazhkin_S_A_Furnit.../FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/Furniture.cs
2024-04-29 18:07:26 +04:00

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C#
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using FurnitureAssemblyContracts.BindingModels;
using FurnitureAssemblyContracts.ViewModels;
using FurnitureAssemblyDataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace FurnitureAssemblyDatabaseImplement.Models
{
public class Furniture : IFurnitureModel
{
public int Id { get; set; }
[Required]
public string FurnitureName { get; set; } = string.Empty;
[Required]
public double Price { get; set; }
private Dictionary<int, (IComponentModel, int)>? _furnitureComponents = null;
[NotMapped]
public Dictionary<int, (IComponentModel, int)> FurnitureComponents
{
get
{
if (_furnitureComponents == null)
{
_furnitureComponents = Components
.ToDictionary(recPC => recPC.ComponentId, recPC =>
(recPC.Component as IComponentModel, recPC.Count));
}
return _furnitureComponents;
}
}
[ForeignKey("FurnitureId")]
public virtual List<FurnitureComponent> Components { get; set; } = new();
[ForeignKey("FurnitureId")]
public virtual List<Order> Orders { get; set; } = new();
public static Furniture Create(FurnitureAssemblyDatabase context, FurnitureBindingModel model)
{
return new Furniture()
{
Id = model.Id,
FurnitureName = model.FurnitureName,
Price = model.Price,
Components = model.FurnitureComponents.Select(x => new FurnitureComponent
{
Component = context.Components.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList()
};
}
public void Update(FurnitureBindingModel model)
{
FurnitureName = model.FurnitureName;
Price = model.Price;
}
public FurnitureViewModel GetViewModel => new()
{
Id = Id,
FurnitureName = FurnitureName,
Price = Price,
FurnitureComponents = FurnitureComponents
};
public void UpdateComponents(FurnitureAssemblyDatabase context, FurnitureBindingModel model)
{
var furnitureComponents = context.FurnitureComponents.Where(rec => rec.FurnitureId == model.Id).ToList();
if (furnitureComponents != null && furnitureComponents.Count > 0)
{ // удалили те, которых нет в модели
context.FurnitureComponents.RemoveRange(furnitureComponents.Where(rec
=> !model.FurnitureComponents.ContainsKey(rec.ComponentId)));
context.SaveChanges();
// обновили количество у существующих записей
foreach (var updateComponent in furnitureComponents)
{
updateComponent.Count = model.FurnitureComponents[updateComponent.ComponentId].Item2;
model.FurnitureComponents.Remove(updateComponent.ComponentId);
}
context.SaveChanges();
}
var furniture = context.Furnitures.First(x => x.Id == Id);
foreach (var pc in model.FurnitureComponents)
{
context.FurnitureComponents.Add(new FurnitureComponent
{
Furniture = furniture,
Component = context.Components.First(x => x.Id == pc.Key),
Count = pc.Value.Item2
});
context.SaveChanges();
}
_furnitureComponents = null;
}
}
}