93 lines
3.5 KiB
C#
93 lines
3.5 KiB
C#
using PrecastConcretePlantContracts.BindingModels;
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using PrecastConcretePlantContracts.SearchModels;
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using PrecastConcretePlantContracts.StoragesContracts;
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using PrecastConcretePlantContracts.ViewModels;
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using PrecastConcretePlantFileImplement.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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namespace PrecastConcretePlantFileImplement.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 => AttachReinforcedName(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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//Метод полностью может быть заменён следующим. Практическая польза незначительна
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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 => x.Id == model.Id).Select(x => AttachReinforcedName(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 new();
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}
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return AttachReinforcedName(source.Orders.FirstOrDefault(x => 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 AttachReinforcedName(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 AttachReinforcedName(order.GetViewModel);
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}
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public OrderViewModel? Delete(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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source.Orders.Remove(order);
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source.SaveOrders();
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return AttachReinforcedName(order.GetViewModel);
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}
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return null;
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}
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private OrderViewModel AttachReinforcedName(OrderViewModel? model)
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{
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//Из всех мест, это выглядит наиболее подходящим, для данной манипуляции.
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//При расположении ниже нарушится целостность данных
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//При расположении выше будет нарушен принцип разделения уровней
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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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var reinforced = source.Reinforceds.FirstOrDefault(x => x.Id == model.ReinforcedId);
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if (reinforced != null)
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{
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model.ReinforcedName = reinforced.ReinforcedName;
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}
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return model;
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}
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}
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} |