68 lines
1.5 KiB
C#
68 lines
1.5 KiB
C#
|
using Contracts.BindingModels;
|
|||
|
|
using Contracts.BusinessLogicContracts;
|
|||
|
|
using Contracts.StorageContracts;
|
|||
|
|
using Contracts.ViewModels;
|
|||
|
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Text;
|
|||
|
|
using System.Threading.Tasks;
|
|||
|
|
|
|||
|
|
namespace BusinessLogic
|
|||
|
|
{
|
|||
|
|
public class BookLogic : IBookLogic
|
|||
|
|
{
|
|||
|
|
private readonly IBookStorage _bookStorage;
|
|||
|
|
public BookLogic(IBookStorage bookStorage)
|
|||
|
|
{
|
|||
|
|
_bookStorage = bookStorage;
|
|||
|
|
}
|
|||
|
|
public void CreateOrUpdate(BookBindingModel model)
|
|||
|
|
{
|
|||
|
|
var element = _bookStorage.GetElement(
|
|||
|
|
new BookBindingModel
|
|||
|
|
{
|
|||
|
|
Name = model.Name,
|
|||
|
|
Author = model.Author,
|
|||
|
|
PicturePath = model.PicturePath,
|
|||
|
|
PublicationDate = model.PublicationDate
|
|||
|
|
});
|
|||
|
|
if (element != null && element.Id != model.Id)
|
|||
|
|
{
|
|||
|
|
throw new Exception("Книга с таким названием уже существует");
|
|||
|
|
}
|
|||
|
|
if (model.Id.HasValue)
|
|||
|
|
{
|
|||
|
|
_bookStorage.Update(model);
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
_bookStorage.Insert(model);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Delete(BookBindingModel model)
|
|||
|
|
{
|
|||
|
|
var element = _bookStorage.GetElement(new BookBindingModel { Id = model.Id });
|
|||
|
|
if (element == null)
|
|||
|
|
{
|
|||
|
|
throw new Exception("Книга не найдена");
|
|||
|
|
}
|
|||
|
|
_bookStorage.Delete(model);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public List<BookViewModel> Read(BookBindingModel model)
|
|||
|
|
{
|
|||
|
|
if (model == null)
|
|||
|
|
{
|
|||
|
|
return _bookStorage.GetFullList();
|
|||
|
|
}
|
|||
|
|
if (model.Id.HasValue)
|
|||
|
|
{
|
|||
|
|
return new List<BookViewModel> { _bookStorage.GetElement(model) };
|
|||
|
|
}
|
|||
|
|
return _bookStorage.GetFilteredList(model);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|