создание файлового хранилища сущностей
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49
SushiBar/SushiBarFileImplement/DataFileSingleton.cs
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49
SushiBar/SushiBarFileImplement/DataFileSingleton.cs
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using SushiBarFileImplement.Models;
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using System.Linq;
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using System.Xml.Linq;
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namespace SushiBarFileImplement
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{
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internal class DataFileSingleton
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{
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private static DataFileSingleton? instance;
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private readonly string ComponentFileName = "Component.xml";
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private readonly string OrderFileName = "Order.xml";
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private readonly string SushiFileName = "Sushi.xml";
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public List<Component> Components { get; private set; }
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public List<Order> Orders { get; private set; }
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public List<Sushi> Sushis { get; private set; }
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public static DataFileSingleton GetInstance()
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{
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if (instance == null)
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{
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instance = new DataFileSingleton();
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}
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return instance;
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}
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public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
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public void SaveSushis() => SaveData(Sushis, SushiFileName, "Sushis", x => x.GetXElement);
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public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
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private DataFileSingleton()
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{
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Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
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Sushis = LoadData(SushiFileName, "Product", x => Sushi.Create(x)!)!;
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Orders = new List<Order>();
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}
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private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
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{
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if (File.Exists(filename))
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{
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return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
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}
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return new List<T>();
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}
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private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
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{
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if (data != null)
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{
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new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
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}
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}
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}
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}
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using SushiBarContracts.BindingModels;
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using SushiBarContracts.SearchModels;
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using SushiBarContracts.StoragesContracts;
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using SushiBarContracts.ViewModels;
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using SushiBarFileImplement.Models;
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namespace SushiBarFileImplement.Implements
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{
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public class ComponentStorage : IComponentStorage
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{
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private readonly DataFileSingleton source;
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public ComponentStorage()
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{
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source = DataFileSingleton.GetInstance();
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}
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public List<ComponentViewModel> GetFullList()
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{
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return source.Components.Select(x => x.GetViewModel).ToList();
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}
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public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
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{
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if (string.IsNullOrEmpty(model.ComponentName))
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{
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return new();
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}
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return source.Components.Where(x =>
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x.ComponentName.Contains(model.ComponentName)).Select(x =>
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x.GetViewModel).ToList();
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}
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public ComponentViewModel? GetElement(ComponentSearchModel model)
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{
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if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
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{
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return null;
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}
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return source.Components.FirstOrDefault(x =>
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(!string.IsNullOrEmpty(model.ComponentName) &&
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x.ComponentName == model.ComponentName) ||
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(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
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}
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public ComponentViewModel? Insert(ComponentBindingModel model)
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{
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model.Id = source.Components.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
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var newComponent = Component.Create(model);
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if (newComponent == null)
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{
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return null;
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}
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source.Components.Add(newComponent);
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source.SaveComponents();
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return newComponent.GetViewModel;
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}
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public ComponentViewModel? Update(ComponentBindingModel model)
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{
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var component = source.Components.FirstOrDefault(x => x.Id == model.Id);
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if (component == null)
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{
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return null;
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}
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component.Update(model);
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source.SaveComponents();
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return component.GetViewModel;
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}
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public ComponentViewModel? Delete(ComponentBindingModel model)
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{
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var element = source.Components.FirstOrDefault(x => x.Id == model.Id);
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if (element != null)
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{
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source.Components.Remove(element);
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source.SaveComponents();
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return element.GetViewModel;
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}
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return null;
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}
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}
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}
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74
SushiBar/SushiBarFileImplement/Implements/OrderStorage.cs
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74
SushiBar/SushiBarFileImplement/Implements/OrderStorage.cs
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using SushiBarContracts.BindingModels;
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using SushiBarContracts.SearchModels;
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using SushiBarContracts.StoragesContracts;
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using SushiBarContracts.ViewModels;
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using SushiBarFileImplement.Models;
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namespace SushiBarFileImplement.Implements
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{
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public class OrderStorage : IOrderStorage
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{
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private readonly DataFileSingleton source;
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public OrderStorage()
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{
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source = DataFileSingleton.GetInstance();
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}
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public List<OrderViewModel> GetFullList()
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{
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return source.Orders.Select(x => x.GetViewModel).ToList();
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}
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public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
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{
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if (!model.Id.HasValue)
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{
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return new();
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}
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return source.Orders.Where(x =>
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x.Id == model.Id).Select(x =>
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x.GetViewModel).ToList();
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}
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public OrderViewModel? GetElement(OrderSearchModel model)
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{
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if (!model.Id.HasValue)
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{
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return null;
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}
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return source.Orders.FirstOrDefault(x =>
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(x.Id == model.Id))?.GetViewModel;
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}
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public OrderViewModel? Insert(OrderBindingModel model)
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{
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model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
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var newOrder = Order.Create(model);
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if (newOrder == null)
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{
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return null;
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}
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source.Orders.Add(newOrder);
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source.SaveOrders();
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return newOrder.GetViewModel;
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}
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public OrderViewModel? Update(OrderBindingModel model)
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{
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var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
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if (order == null)
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{
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return null;
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}
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order.Update(model);
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source.SaveOrders();
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return order.GetViewModel;
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}
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public OrderViewModel? Delete(OrderBindingModel model)
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{
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var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
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if (element != null)
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{
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source.Orders.Remove(element);
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source.SaveOrders();
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return element.GetViewModel;
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}
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return null;
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}
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}
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}
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81
SushiBar/SushiBarFileImplement/Implements/SushiStorage.cs
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81
SushiBar/SushiBarFileImplement/Implements/SushiStorage.cs
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using SushiBarContracts.BindingModels;
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using SushiBarContracts.SearchModels;
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using SushiBarContracts.StoragesContracts;
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using SushiBarContracts.ViewModels;
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using SushiBarFileImplement.Models;
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namespace SushiBarFileImplement.Implements
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{
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public class SushiStorage : ISushiStorage
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{
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private readonly DataFileSingleton source;
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public SushiStorage()
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{
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source = DataFileSingleton.GetInstance();
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}
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public List<SushiViewModel> GetFullList()
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{
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return source.Sushis.Select(x => x.GetViewModel).ToList();
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}
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public List<SushiViewModel> GetFilteredList(SushiSearchModel model)
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{
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if (string.IsNullOrEmpty(model.SushiName))
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{
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return new();
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}
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return source.Sushis.Where(x =>
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x.SushiName.Contains(model.SushiName)).Select(x =>
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x.GetViewModel).ToList();
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}
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public SushiViewModel? GetElement(SushiSearchModel model)
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{
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if (string.IsNullOrEmpty(model.SushiName) && !model.Id.HasValue)
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{
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return null;
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}
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return source.Sushis.FirstOrDefault(x =>
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(!string.IsNullOrEmpty(model.SushiName) &&
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x.SushiName == model.SushiName) ||
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(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
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}
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public SushiViewModel? Insert(SushiBindingModel model)
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{
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model.Id = source.Sushis.Count > 0 ? source.Sushis.Max(x => x.Id) + 1 : 1;
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var newSushi = Sushi.Create(model);
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if (newSushi == null)
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{
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return null;
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}
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source.Sushis.Add(newSushi);
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source.SaveSushis();
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return newSushi.GetViewModel;
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}
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public SushiViewModel? Update(SushiBindingModel model)
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{
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var sushi = source.Sushis.FirstOrDefault(x => x.Id == model.Id);
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if (sushi == null)
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{
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return null;
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}
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sushi.Update(model);
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source.SaveSushis();
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return sushi.GetViewModel;
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}
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public SushiViewModel? Delete(SushiBindingModel model)
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{
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var element = source.Sushis.FirstOrDefault(x => x.Id == model.Id);
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if (element != null)
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{
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source.Sushis.Remove(element);
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source.SaveSushis();
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return element.GetViewModel;
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}
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return null;
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}
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}
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}
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59
SushiBar/SushiBarFileImplement/Models/Component.cs
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59
SushiBar/SushiBarFileImplement/Models/Component.cs
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using SushiBarContracts.BindingModels;
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using SushiBarContracts.ViewModels;
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using SushiBarDataModels.Models;
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using System.Xml.Linq;
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namespace SushiBarFileImplement.Models
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{
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public class Component : IComponentModel
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{
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public int Id { get; private set; }
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public string ComponentName { get; private set; } = string.Empty;
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public double Cost { get; set; }
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public static Component? Create(ComponentBindingModel model)
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{
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if (model == null)
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{
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return null;
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}
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return new Component()
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{
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Id = model.Id,
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ComponentName = model.ComponentName,
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Cost = model.Cost
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};
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}
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public static Component? Create(XElement element)
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{
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if (element == null)
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{
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return null;
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}
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return new Component()
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{
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Id = Convert.ToInt32(element.Attribute("Id")!.Value),
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ComponentName = element.Element("ComponentName")!.Value,
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Cost = Convert.ToDouble(element.Element("Cost")!.Value)
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};
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}
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public void Update(ComponentBindingModel model)
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{
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if (model == null)
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{
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return;
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}
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ComponentName = model.ComponentName;
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Cost = model.Cost;
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}
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public ComponentViewModel GetViewModel => new()
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{
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Id = Id,
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ComponentName = ComponentName,
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Cost = Cost
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};
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public XElement GetXElement => new("Component",
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new XAttribute("Id", Id),
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new XElement("ComponentName", ComponentName),
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new XElement("Cost", Cost.ToString()));
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}
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}
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87
SushiBar/SushiBarFileImplement/Models/Order.cs
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87
SushiBar/SushiBarFileImplement/Models/Order.cs
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using SushiBarContracts.BindingModels;
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using SushiBarContracts.ViewModels;
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using SushiBarDataModels.Enums;
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using SushiBarDataModels.Models;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Xml.Linq;
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namespace SushiBarFileImplement.Models
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{
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public class Order : IOrderModel
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{
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public int Id { get; private set; }
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public int SushiId { get; private set; }
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public int Count { get; private set; }
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public double Sum { get; private set; }
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public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
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public DateTime DateCreate { get; private set; }
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public DateTime? DateImplement { get; private set; }
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public static Order? Create(OrderBindingModel model)
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{
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if (model == null)
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{
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return null;
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}
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return new Order()
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{
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Id = model.Id,
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SushiId = model.SushiId,
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Count = model.Count,
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Sum = model.Sum,
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Status = model.Status,
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DateCreate = model.DateCreate,
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DateImplement = model.DateImplement
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};
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}
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public static Order? Create(XElement element)
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{
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if (element == null)
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{
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return null;
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}
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return new Order()
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{
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Id = Convert.ToInt32(element.Attribute("id")!.Value),
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SushiId = Convert.ToInt32(element.Element("SushiId")!.Value),
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Count = Convert.ToInt32(element.Element("Count")!.Value),
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Sum = Convert.ToDouble(element.Element("Sum")!.Value),
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Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value.ToString()),
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DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
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DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null :
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Convert.ToDateTime(element.Element("DateImplement")!.Value)
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};
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}
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public void Update(OrderBindingModel model)
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{
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if (model == null)
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{
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return;
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}
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Status = model.Status;
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DateImplement = model.DateImplement;
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}
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public OrderViewModel GetViewModel => new()
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{
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Id = Id,
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SushiId = SushiId,
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Count = Count,
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Sum = Sum,
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Status = Status,
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DateCreate = DateCreate,
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DateImplement = DateImplement,
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};
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public XElement GetXElement => new("Order",
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new XAttribute("Id", Id),
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new XElement("SushiId", SushiId),
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new XElement("Count", Count),
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new XElement("Sum", Sum.ToString()),
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new XElement("Status", Status.ToString()),
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new XElement("DateCreate", DateCreate.ToString()),
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new XElement("DateImplement", DateImplement.ToString())
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);
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}
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}
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87
SushiBar/SushiBarFileImplement/Models/Sushi.cs
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87
SushiBar/SushiBarFileImplement/Models/Sushi.cs
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using SushiBarContracts.BindingModels;
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using SushiBarContracts.ViewModels;
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using SushiBarDataModels.Models;
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using System.Xml.Linq;
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namespace SushiBarFileImplement.Models
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{
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public class Sushi : ISushiModel
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{
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public int Id { get; private set; }
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public string SushiName { get; private set; } = string.Empty;
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public double Price { get; private set; }
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public Dictionary<int, int> Components { get; private set; } = new();
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private Dictionary<int, (IComponentModel, int)>? _sushiComponents = null;
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public Dictionary<int, (IComponentModel, int)> SushiComponents
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{
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get
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{
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if (_sushiComponents == null)
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{
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var source = DataFileSingleton.GetInstance();
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_sushiComponents = Components.ToDictionary(x => x.Key, y =>
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((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
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y.Value));
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}
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return _sushiComponents;
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}
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}
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public static Sushi? Create(SushiBindingModel model)
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{
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if (model == null)
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{
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return null;
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}
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return new Sushi()
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{
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Id = model.Id,
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SushiName = model.SushiName,
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Price = model.Price,
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Components = model.SushiComponents.ToDictionary(x => x.Key, x
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=> x.Value.Item2)
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};
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}
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public static Sushi? Create(XElement element)
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{
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if (element == null)
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{
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return null;
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}
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return new Sushi()
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{
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Id = Convert.ToInt32(element.Attribute("Id")!.Value),
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SushiName = element.Element("SushiName")!.Value,
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Price = Convert.ToDouble(element.Element("Price")!.Value),
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Components = element.Element("SushiComponents")!.Elements("SushiComponent").ToDictionary(x =>
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Convert.ToInt32(x.Element("Key")?.Value), x =>
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Convert.ToInt32(x.Element("Value")?.Value))
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};
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}
|
||||
public void Update(SushiBindingModel model)
|
||||
{
|
||||
if (model == null)
|
||||
{
|
||||
return;
|
||||
}
|
||||
SushiName = model.SushiName;
|
||||
Price = model.Price;
|
||||
Components = model.SushiComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
|
||||
_sushiComponents = null;
|
||||
}
|
||||
public SushiViewModel GetViewModel => new()
|
||||
{
|
||||
Id = Id,
|
||||
SushiName = SushiName,
|
||||
Price = Price,
|
||||
SushiComponents = SushiComponents
|
||||
};
|
||||
public XElement GetXElement => new("Sushi",
|
||||
new XAttribute("Id", Id),
|
||||
new XElement("SushiName", SushiName),
|
||||
new XElement("Price", Price.ToString()),
|
||||
new XElement("SushiComponents", Components.Select(x =>
|
||||
new XElement("SushiComponent",
|
||||
new XElement("Key", x.Key),
|
||||
new XElement("Value", x.Value))).ToArray()));
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user