66 lines
1.4 KiB
C#
66 lines
1.4 KiB
C#
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using Contracts.BindingModels;
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using Contracts.BusinessLogicContracts;
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using Contracts.StorageContracts;
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using Contracts.ViewModels;
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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 BusinessLogic
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{
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public class AuthorLogic:IAuthorLogic
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{
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private readonly IAuthorStorage _authorStorage;
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public AuthorLogic(IAuthorStorage authorStorage)
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{
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_authorStorage = authorStorage;
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}
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public void CreateOrUpdate(AuthorBindingModel model)
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{
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var element = _authorStorage.GetElement(
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new AuthorBindingModel
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{
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FIO = model.FIO
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});
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if (element != null && element.Id != model.Id)
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{
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throw new Exception("Такой автор уже существует");
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}
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if (model.Id.HasValue)
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{
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_authorStorage.Update(model);
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}
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else
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{
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_authorStorage.Insert(model);
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}
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}
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public void Delete(AuthorBindingModel model)
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{
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var element = _authorStorage.GetElement(new AuthorBindingModel { Id = model.Id });
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if (element == null)
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{
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throw new Exception("Автор не найден");
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}
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_authorStorage.Delete(model);
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}
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public List<AuthorViewModel> Read(AuthorBindingModel model)
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{
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if (model == null)
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{
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return _authorStorage.GetFullList();
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}
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if (model.Id.HasValue)
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{
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return new List<AuthorViewModel> { _authorStorage.GetElement(model) };
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}
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return _authorStorage.GetFilteredList(model);
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}
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}
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}
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