PIbd-22_Karamushko_M_K_Pizz.../Pizzeria/PizzeriaDatabaseImplement/models/Pizza.cs
2023-03-14 08:45:31 +04:00

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using PizzeriaContracts.BindingModels;
using PizzeriaContracts.ViewModels;
using PizzeriaDataModels;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace PizzeriaDatabaseImplement.models
{
public class Pizza : IPizzaModel
{
public int Id { get; set; }
[Required]
public string PizzaName { get; set; } = string.Empty;
[Required]
public double Price { get; set; }
private Dictionary<int, (IComponentModel, int)>? _pizzaComponents =
null;
[NotMapped]
public Dictionary<int, (IComponentModel, int)> PizzaComponents
{
get
{
if (_pizzaComponents == null)
{
_pizzaComponents = Components
.ToDictionary(recPC => recPC.ComponentId, recPC =>
(recPC.Component as IComponentModel, recPC.Count));
}
return _pizzaComponents;
}
}
[ForeignKey("PizzaId")]
public virtual List<PizzaComponent> Components { get; set; } = new();
[ForeignKey("PizzaId")]
public virtual List<Order> Orders { get; set; } = new();
public static Pizza Create(PizzeriaDatabase context, PizzaBindingModel model)
{
return new Pizza()
{
Id = model.Id,
PizzaName = model.PizzaName,
Price = model.Price,
Components = model.PizzaComponents.Select(x => new
PizzaComponent
{
Component = context.Components.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList()
};
}
public void Update(PizzaBindingModel model)
{
PizzaName = model.PizzaName;
Price = model.Price;
}
public PizzaViewModel GetViewModel => new()
{
Id = Id,
PizzaName = PizzaName,
Price = Price,
PizzaComponents = PizzaComponents
};
public void UpdateComponents(PizzeriaDatabase context,
PizzaBindingModel model)
{
var pizzaComponents = context.PizzaComponents.Where(rec =>
rec.PizzaId == model.Id).ToList();
if (pizzaComponents != null && pizzaComponents.Count > 0)
{ // удалили те, которых нет в модели
context.PizzaComponents.RemoveRange(pizzaComponents.Where(rec
=> !model.PizzaComponents.ContainsKey(rec.ComponentId)));
context.SaveChanges();
// обновили количество у существующих записей
foreach (var updateComponent in pizzaComponents)
{
updateComponent.Count =
model.PizzaComponents[updateComponent.ComponentId].Item2;
model.PizzaComponents.Remove(updateComponent.ComponentId);
}
context.SaveChanges();
}
var pizza = context.Pizzas.First(x => x.Id == Id);
foreach (var pc in model.PizzaComponents)
{
context.PizzaComponents.Add(new PizzaComponent
{
Pizza = pizza,
Component = context.Components.First(x => x.Id == pc.Key),
Count = pc.Value.Item2
});
context.SaveChanges();
}
_pizzaComponents = null;
}
}
}