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Performance Improvements (#568)

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* Refactored the performance of GetChapter/BookInfo API to have a 10x speed improvement and to use common code, rather than duplicating code. Removed an api param that is no longer needed.

* Book reader now has dedicated buttons to jump to next/prev chapter as well as through page buttons
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Joseph Milazzo 2021-09-08 16:26:09 -07:00 • committed by GitHub
parent 84fa617023
commit cb3929e499
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11 changed files with 112 additions and 43 deletions
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43
API/Data/Repositories/ChapterRepository.cs
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@ -1,6 +1,7 @@
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using API.DTOs.Reader;
using API.Entities;
using API.Interfaces.Repositories;
using Microsoft.EntityFrameworkCore;
@ -30,5 +31,47 @@ namespace API.Data.Repositories
}
// TODO: Move over Chapter based queries here
/// <summary>
/// Populates a partial IChapterInfoDto
/// </summary>
/// <returns></returns>
public async Task<IChapterInfoDto> GetChapterInfoDtoAsync(int chapterId)
{
return await _context.Chapter
.Where(c => c.Id == chapterId)
.Join(_context.Volume, c => c.VolumeId, v => v.Id, (chapter, volume) => new
{
ChapterNumber = chapter.Range,
VolumeNumber = volume.Number,
VolumeId = volume.Id,
chapter.IsSpecial,
volume.SeriesId
})
.Join(_context.Series, data => data.SeriesId, series => series.Id, (data, series) => new
{
data.ChapterNumber,
data.VolumeNumber,
data.VolumeId,
data.IsSpecial,
data.SeriesId,
SeriesFormat = series.Format,
SeriesName = series.Name,
series.LibraryId
})
.Select(data => new BookInfoDto()
{
ChapterNumber = data.ChapterNumber,
VolumeNumber = data.VolumeNumber + string.Empty,
VolumeId = data.VolumeId,
IsSpecial = data.IsSpecial,
SeriesId =data.SeriesId,
SeriesFormat = data.SeriesFormat,
SeriesName = data.SeriesName,
LibraryId = data.LibraryId
})
.AsNoTracking()
.SingleAsync();
}
}
}