85 lines
3.2 KiB
C#
85 lines
3.2 KiB
C#
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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 PrecastConcretePlantDatabaseImplement.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 PrecastConcretePlantDatabaseImplement.Implements
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{
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public class ComponentStorage : IComponentStorage
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{
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public List<ComponentViewModel> GetFullList()
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{
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using var context = new PrecastConcretePlantDataBase();//подключение к бд, далее - запросы
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return context.Components
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.Select(x => x.GetViewModel)
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.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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using var context = new PrecastConcretePlantDataBase();
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return context.Components
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.Where(x => x.ComponentName.Contains(model.ComponentName))
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.Select(x => x.GetViewModel)
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.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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using var context = new PrecastConcretePlantDataBase();
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return context.Components
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.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) && 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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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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using var context = new PrecastConcretePlantDataBase();
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context.Components.Add(newComponent);
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context.SaveChanges();
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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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using var context = new PrecastConcretePlantDataBase();
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var component = context.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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context.SaveChanges();//для сохранения изменений не в копии бд а в самой бд
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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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using var context = new PrecastConcretePlantDataBase();
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var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
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if (element != null)
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{
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context.Components.Remove(element);
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context.SaveChanges();
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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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