63 lines
1.8 KiB
C#
63 lines
1.8 KiB
C#
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using BookContract.BindingModels;
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using BookContract.BusinessLogicContracts;
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using BookContract.StorageContracts;
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using BookContract.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 BookBusinessLogic.BusinessLogic
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{
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public class ReaderLogic : IReaderLogic
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{
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private readonly IReaderStorage _readerStorage;
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public ReaderLogic(IReaderStorage readerStorage)
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{
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_readerStorage = readerStorage;
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}
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public void CreateOrUpdate(ReaderBindingModel model)
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{
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var element = _readerStorage.GetElement(new ReaderBindingModel { Name = model.Name });
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if (element != null && element.Id != model.Id)
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{
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throw new Exception("Книги с таким названием тут нет");
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}
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if (model.Id.HasValue)
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{
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_readerStorage.Update(model);
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}
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else
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{
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_readerStorage.Insert(model);
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}
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}
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public void Delete(ReaderBindingModel model)
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{
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var element = _readerStorage.GetElement(new ReaderBindingModel { Name = model.Name });
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if (element == null)
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{
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throw new Exception("Книги с таким названием тут нет");
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}
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_readerStorage.Delete(model);
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}
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public List<ReaderViewModel> Read(ReaderBindingModel model)
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{
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if (model == null)
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return _readerStorage.GetFullList();
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if (model.Id.HasValue)
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{
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return new List<ReaderViewModel> {
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_readerStorage.GetElement(model)
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};
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}
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return _readerStorage.GetFullList();
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}
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}
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}
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