ISEbd-21_KashtanovD.A.FishF.../FishFactory/FishFactoryDatabaseImplement/Models/Canned.cs
2024-03-21 19:57:29 +04:00

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C#
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using FishFactoryContracts.BindingModels;
using FishFactoryContracts.ViewModels;
using FishFactoryDataModels.Models;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace FishFactoryDatabaseImplement.Models
{
public class Canned : ICannedModel
{
public int Id { get; set; }
[Required]
public string CannedName { get; set; } = string.Empty;
[Required]
public double Price { get; set; }
private Dictionary<int, (IComponentModel, int)>? _cannedComponents =
null;
[NotMapped]
public Dictionary<int, (IComponentModel, int)> CannedComponents
{
get
{
if (_cannedComponents == null)
{
_cannedComponents = Components
.ToDictionary(recPC => recPC.ComponentId, recPC =>
(recPC.Component as IComponentModel, recPC.Count));
}
return _cannedComponents;
}
}
[ForeignKey("CannedId")]
public virtual List<CannedComponent> Components { get; set; } = new();
[ForeignKey("CannedId")]
public virtual List<Order> Orders { get; set; } = new();
public static Canned
Create(FishFactoryDatabase context,CannedBindingModel model)
{
return new Canned()
{
Id = model.Id,
CannedName = model.CannedName,
Price = model.Price,
Components = model.CannedComponents.Select(x => new
CannedComponent
{
Component = context.Components.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList()
};
}
public void Update(CannedBindingModel model)
{
CannedName = model.CannedName;
Price = model.Price;
}
public CannedViewModel GetViewModel => new()
{
Id = Id,
CannedName = CannedName,
Price = Price,
CannedComponents = CannedComponents
};
public void UpdateComponents(FishFactoryDatabase context,
CannedBindingModel model)
{
var cannedComponents = context.CannedComponents.Where(rec =>
rec.CannedId == model.Id).ToList();
if (cannedComponents != null && cannedComponents.Count > 0)
{ // удалили те, которых нет в модели
context.CannedComponents.RemoveRange(cannedComponents.Where(rec
=> !model.CannedComponents.ContainsKey(rec.ComponentId)));
context.SaveChanges();
// обновили количество у существующих записей
foreach (var updateComponent in cannedComponents)
{
updateComponent.Count =
model.CannedComponents[updateComponent.ComponentId].Item2;
model.CannedComponents.Remove(updateComponent.ComponentId);
}
context.SaveChanges();
}
var canned = context.Canneds.First(x => x.Id == Id);
foreach (var pc in model.CannedComponents)
{
context.CannedComponents.Add(new CannedComponent
{
Canned = canned,
Component = context.Components.First(x => x.Id == pc.Key),
Count = pc.Value.Item2
});
context.SaveChanges();
}
_cannedComponents = null;
}
}
}