PIbd-21_Medvedkov_Coursach/ComputerShopDatabaseImplement/Models/Assembly.cs
2024-05-01 04:42:57 +04:00

116 lines
3.4 KiB
C#

using ComputerShopContracts.BindingModels;
using ComputerShopContracts.ViewModels;
using ComputerShopDataModels.Models;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace ComputerShopDatabaseImplement.Models
{
public class Assembly : IAssemblyModel
{
public int Id { get; private set; }
[Required]
public string AssemblyName { get; private set; } = string.Empty;
[Required]
public double Cost { get; private set; }
[Required]
public int UserId { get; private set; }
[ForeignKey("ComponentId")]
public virtual List<AssemblyComponent> Components { get; set; } = new();
private Dictionary<int, (IComponentModel, int)>? _assemblyComponents;
[NotMapped]
public Dictionary<int, (IComponentModel, int)> AssemblyComponents
{
get
{
if (_assemblyComponents == null)
{
_assemblyComponents = Components.ToDictionary(
AsmComp => AsmComp.ComponentId,
AsmComp => (AsmComp.Component as IComponentModel, AsmComp.Count)
);
}
return _assemblyComponents;
}
}
public static Assembly Create(ComputerShopDatabase Context, AssemblyBindingModel Model)
{
return new()
{
Id = Model.Id,
AssemblyName = Model.AssemblyName,
Cost = Model.Cost,
UserId = Model.UserId,
Components = Model.AssemblyComponents.Select(x => new AssemblyComponent
{
Component = Context.Components.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList(),
};
}
public void Update(AssemblyBindingModel Model)
{
if (!string.IsNullOrEmpty(Model.AssemblyName))
{
AssemblyName = Model.AssemblyName;
}
Cost = Model.Cost;
}
public void UpdateComponents(ComputerShopDatabase Context, AssemblyBindingModel Model)
{
var AssemblyComponents = Context.AssemblyComponents.Where(x => x.AssemblyId == Model.Id).ToList();
if (AssemblyComponents != null && AssemblyComponents.Count > 0)
{
Context.AssemblyComponents
.RemoveRange(AssemblyComponents
.Where(x => !Model.AssemblyComponents.ContainsKey(x.ComponentId)));
Context.SaveChanges();
foreach (var ComponentToUpdate in AssemblyComponents)
{
ComponentToUpdate.Count = Model.AssemblyComponents[ComponentToUpdate.ComponentId].Item2;
Model.AssemblyComponents.Remove(ComponentToUpdate.ComponentId);
}
Context.SaveChanges();
}
var CurrentAssembly = Context.Assemblies.First(x => x.Id == Id);
foreach (var AssemblyComponent in Model.AssemblyComponents)
{
Context.AssemblyComponents.Add(new AssemblyComponent
{
Assembly = CurrentAssembly,
Component = Context.Components.First(x => x.Id == AssemblyComponent.Key),
Count = AssemblyComponent.Value.Item2
});
Context.SaveChanges();
}
_assemblyComponents = null;
}
public AssemblyViewModel ViewModel => new()
{
Id = Id,
AssemblyName = AssemblyName,
Cost = Cost,
UserId = UserId,
AssemblyComponents = AssemblyComponents,
};
}
}