231 lines
5.3 KiB
C#
231 lines
5.3 KiB
C#
using ModuleTools.BindingModels;
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using ModuleTools.Enums;
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using ModuleTools.Interfaces;
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using ModuleTools.Models;
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using ModuleTools.ViewModels;
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using System;
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using System.Collections.Generic;
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namespace ModuleTools.BusinessLogics
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{
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/// <summary>
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/// Базовый класс для логики сущности
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/// </summary>
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/// <typeparam name="G"></typeparam>
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/// <typeparam name="S"></typeparam>
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/// <typeparam name="L"></typeparam>
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/// <typeparam name="E"></typeparam>
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public class BusinessLogicCore<G, S, L, E>
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where G : GetBindingModel
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where S : SetBindingModel
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where L : ListViewModel<E>
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where E : ElementViewModel
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{
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/// <summary>
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/// Перечень ошибок при выполнении операции
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/// </summary>
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public List<(string Title, string Message)> Errors { get; protected set; }
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/// <summary>
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/// Сервис с хранилищем данных
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/// </summary>
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protected IEntityService<G, S> Service { get; set; }
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/// <summary>
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/// Менеджер безопасности
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/// </summary>
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protected ISecurityManager Security { get; set; }
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/// <summary>
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/// Тип операции, скоторым работает логика
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/// </summary>
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protected readonly AccessOperation _serviceOperation;
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/// <summary>
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/// Название сущности
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/// </summary>
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protected readonly string _entity;
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/// <summary>
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/// Возможен ли просмотр без авторизации
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/// </summary>
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protected bool _allowSimpleView = true;
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public BusinessLogicCore(IEntityService<G, S> service, string entity, AccessOperation serviceOperation)
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{
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Service = service;
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Errors = new List<(string Title, string Message)>();
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Security = DependencyManager.Instance.Resolve<ISecurityManager>();
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_entity = entity;
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_serviceOperation = serviceOperation;
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}
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/// <summary>
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/// Проверка доступности операции для пользователя
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/// </summary>
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/// <param name="model"></param>
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/// <param name="type"></param>
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/// <returns></returns>
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protected bool NoAccess(AccessBindingModel model, AccessType type)
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{
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if (Security.CheckAccess(new SecurityManagerCheckAccessModel(model, _serviceOperation, type, _entity)))
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{
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return false;
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}
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Errors.Add(("Ошибка безопасности", Security.ErrorMessage));
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return true;
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}
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/// <summary>
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/// Получение списка записей
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/// </summary>
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/// <param name="model"></param>
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/// <returns></returns>
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public L GetList(G model)
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{
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Errors.Clear();
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try
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{
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model.HaveRight = NoAccess(model, AccessType.View);
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if (model.HaveRight && !_allowSimpleView)
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{
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throw new MethodAccessException("Нет прав на получение списка");
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}
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var result = Service.Read(model);
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if (!result.IsSucceeded)
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{
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Errors.AddRange(Errors);
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return null;
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}
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return result.Result as L;
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}
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catch (Exception ex)
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{
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Errors.Add(("Ошибка получения", ex.Message));
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}
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return null;
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}
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/// <summary>
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/// Получение записи
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/// </summary>
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/// <param name="model"></param>
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/// <returns></returns>
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public E GetElement(G model)
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{
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Errors.Clear();
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try
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{
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model.HaveRight = NoAccess(model, AccessType.View);
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if (model.HaveRight && !_allowSimpleView)
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{
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throw new MethodAccessException("Нет прав на получение списка");
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}
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var result = Service.Read(model);
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if (!result.IsSucceeded)
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{
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Errors.AddRange(Errors);
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return null;
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}
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return result.Result as E;
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}
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catch (Exception ex)
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{
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Errors.Add(("Ошибка получения", ex.Message));
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}
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return null;
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}
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/// <summary>
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/// Создание записи
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/// </summary>
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/// <param name="model"></param>
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/// <returns></returns>
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public E Create(S model)
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{
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Errors.Clear();
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try
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{
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if (NoAccess(model, AccessType.Change))
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{
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return null;
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}
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var result = Service.Create(model);
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if (!result.IsSucceeded)
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{
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Errors.AddRange(Errors);
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return null;
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}
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return result.Result as E;
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}
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catch (Exception ex)
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{
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Errors.Add(("Ошибка создания", ex.Message));
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}
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return null;
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}
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/// <summary>
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/// Изменение записи
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/// </summary>
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/// <param name="model"></param>
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/// <returns></returns>
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public E Update(S model)
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{
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Errors.Clear();
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try
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{
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if (NoAccess(model, AccessType.Change))
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{
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return null;
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}
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var result = Service.Update(model);
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if (!result.IsSucceeded)
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{
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Errors.AddRange(Errors);
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return null;
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}
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return result.Result as E;
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}
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catch (Exception ex)
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{
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Errors.Add(("Ошибка изменения", ex.Message));
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}
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return null;
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}
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/// <summary>
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/// Удаление записи
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/// </summary>
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/// <param name="model"></param>
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/// <returns></returns>
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public bool Delete(G model)
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{
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Errors.Clear();
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try
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{
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if (NoAccess(model, AccessType.Delete))
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{
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return false;
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}
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var result = Service.Delete(model);
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if (!result.IsSucceeded)
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{
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Errors.AddRange(Errors);
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return false;
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}
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return true;
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}
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catch (Exception ex)
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{
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Errors.Add(("Ошибка удаления", ex.Message));
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}
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return false;
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}
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}
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} |