62 lines
2.3 KiB
C#
62 lines
2.3 KiB
C#
using Microsoft.EntityFrameworkCore;
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using RMuseum.Models.Ganjoor;
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using RMuseum.Models.Ganjoor.ViewModels;
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using RSecurityBackend.Models.Generic;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Threading.Tasks;
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namespace RMuseum.Services.Implementation
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{
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/// <summary>
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/// IGanjoorService implementation
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/// </summary>
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public partial class GanjoorService : IGanjoorService
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{
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/// <summary>
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/// Get list of books (GanjoorCat entries whose CatType is Book), sorted alphabetically by name.
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/// Not to be confused with GetBooksAsync() elsewhere in this class, which lists GanjoorCat
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/// entries by their (separate, legacy) BookName field for cover-image generation.
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/// </summary>
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/// <param name="name">optional, only books whose name contains this (case-insensitive)</param>
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/// <param name="poetId">optional, only books belonging to this poet</param>
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/// <returns></returns>
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public async Task<RServiceResult<GanjoorBookViewModel[]>> GetBookCatalogAsync(string name = null, int? poetId = null)
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{
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var query = _context.GanjoorCategories.AsNoTracking()
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.Where(c => c.CatType == GanjoorCatType.Book);
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if (!string.IsNullOrWhiteSpace(name))
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{
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query = query.Where(c => c.Title.Contains(name));
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}
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if (poetId != null)
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{
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query = query.Where(c => c.PoetId == poetId.Value);
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}
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List<GanjoorBookViewModel> books =
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await query
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.Select(c => new GanjoorBookViewModel()
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{
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Id = c.Id,
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Name = c.Title,
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FullUrl = c.FullUrl,
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PoetId = c.PoetId,
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PoetName = c.Poet.Nickname,
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})
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.ToListAsync();
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// the fa-IR comparer can't be translated to SQL, so sorting happens here in memory -
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// the same approach GetPoets() above uses, fine for a list this small (< 200 rows)
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StringComparer fa = StringComparer.Create(new CultureInfo("fa-IR"), true);
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books.Sort((a, b) => fa.Compare(a.Name, b.Name));
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return new RServiceResult<GanjoorBookViewModel[]>(books.ToArray());
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}
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}
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}
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