X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/eb383b976ed875888b261bf5901ee484aa2dcf8f..3596cf9db6eabb5f0aa36afe7919bc40e8ff0b9a:/src/search/views.py diff --git a/src/search/views.py b/src/search/views.py index b5cc0baa3..e5ea59837 100644 --- a/src/search/views.py +++ b/src/search/views.py @@ -2,30 +2,18 @@ # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # from django.conf import settings -from django.http.response import HttpResponseRedirect from django.shortcuts import render from django.views.decorators import cache from django.http import HttpResponse, JsonResponse from catalogue.models import Book, Tag -from pdcounter.models import Author -from picture.models import Picture -from search.index import Search, SearchResult, PictureResult from .forms import SearchFilters -from suggest.forms import PublishingSuggestForm import re import json from wolnelektury.utils import re_escape -def match_word_re(word): - if 'sqlite' in settings.DATABASES['default']['ENGINE']: - return r"\b%s\b" % word - elif 'mysql' in settings.DATABASES['default']['ENGINE']: - return "[[:<:]]%s[[:>:]]" % word - - query_syntax_chars = re.compile(r"[\\/*:(){}?.[\]+]") @@ -33,32 +21,6 @@ def remove_query_syntax_chars(query, replace=' '): return query_syntax_chars.sub(replace, query) -def did_you_mean(query, tokens): - return query - # change = {} - # for t in tokens: - # authors = Tag.objects.filter(category='author', name__iregex=match_word_re(t)) - # if len(authors) > 0: - # continue - - # if False: - # if not dictionary.check(t): - # try: - # change_to = dictionary.suggest(t)[0].lower() - # if change_to != t.lower(): - # change[t] = change_to - # except IndexError: - # pass - - # if change == {}: - # return None - - # for frm, to in change.items(): - # query = query.replace(frm, to) - - # return query - - @cache.never_cache def hint(request, mozhint=False, param='term'): prefix = request.GET.get(param, '') @@ -133,212 +95,3 @@ def search(request): ctx['hasresults'] = True break return render(request, 'search/results.html', ctx) - - -@cache.never_cache -def main(request): - if request.EXPERIMENTS['layout'].value: - return search(request) - - query = request.GET.get('q', '') - - format = request.GET.get('format') - lang = request.GET.get('lang') - epoch = request.GET.get('epoch') - kind = request.GET.get('kind') - genre = request.GET.get('genre') - - if len(query) < 2: - return render( - request, 'catalogue/search_too_short.html', - {'prefix': query}) - elif len(query) > 256: - return render( - request, 'catalogue/search_too_long.html', - {'prefix': query}) - - query = prepare_query(query) - if not (format or lang or epoch or kind or genre): - pd_authors = search_pd_authors(query) - else: - pd_authors = [] - if not format or format != 'obraz': - books = search_books( - query, - lang=lang, - only_audio=format=='audio', - only_synchro=format=='synchro', - epoch=epoch, - kind=kind, - genre=genre - ) - else: - books = [] - if (not format or format == 'obraz') and not lang: - pictures = search_pictures( - query, - epoch=epoch, - kind=kind, - genre=genre - ) - else: - pictures = [] - - suggestion = '' - - if not (books or pictures or pd_authors): - form = PublishingSuggestForm(initial={"books": query + ", "}) - return render( - request, - 'catalogue/search_no_hits.html', - { - 'form': form, - 'did_you_mean': suggestion - }) - - if not (books or pictures) and len(pd_authors) == 1: - return HttpResponseRedirect(pd_authors[0].get_absolute_url()) - - return render( - request, - 'catalogue/search_multiple_hits.html', - { - 'pd_authors': pd_authors, - 'books': books, - 'pictures': pictures, - 'did_you_mean': suggestion, - 'set': { - 'lang': lang, - 'format': format, - 'epoch': epoch, - 'kind': kind, - 'genre': genre, - }, - 'tags': { - 'epoch': Tag.objects.filter(category='epoch', for_books=True), - 'genre': Tag.objects.filter(category='genre', for_books=True), - 'kind': Tag.objects.filter(category='kind', for_books=True), - }, - }) - -def search_books(query, lang=None, only_audio=False, only_synchro=False, epoch=None, kind=None, genre=None): - search = Search() - results_parts = [] - search_fields = [] - words = query.split() - fieldsets = ( - (['authors', 'authors_nonstem'], True), - (['title', 'title_nonstem'], True), - (['metadata', 'metadata_nonstem'], True), - (['text', 'text_nonstem', 'themes_pl', 'themes_pl_nonstem'], False), - ) - for fields, is_book in fieldsets: - search_fields += fields - results_parts.append(search.search_words(words, search_fields, required=fields, book=is_book)) - results = [] - ids_results = {} - for results_part in results_parts: - for result in sorted(SearchResult.aggregate(results_part), reverse=True): - book_id = result.book_id - if book_id in ids_results: - ids_results[book_id].merge(result) - else: - results.append(result) - ids_results[book_id] = result - descendant_ids = set( - Book.objects.filter(id__in=ids_results, ancestor__in=ids_results).values_list('id', flat=True)) - results = [result for result in results if result.book_id not in descendant_ids] - for result in results: - search.get_snippets(result, query, num=3) - - def ensure_exists(r): - try: - if not r.book: - return False - except Book.DoesNotExist: - return False - - if lang and r.book.language != lang: - return False - if only_audio and not r.book.has_mp3_file(): - return False - if only_synchro and not r.book.has_daisy_file(): - return False - if epoch and not r.book.tags.filter(category='epoch', slug=epoch).exists(): - return False - if kind and not r.book.tags.filter(category='kind', slug=kind).exists(): - return False - if genre and not r.book.tags.filter(category='genre', slug=genre).exists(): - return False - - return True - - results = [r for r in results if ensure_exists(r)] - return results - - -def search_pictures(query, epoch=None, kind=None, genre=None): - search = Search() - results_parts = [] - search_fields = [] - words = query.split() - fieldsets = ( - (['authors', 'authors_nonstem'], True), - (['title', 'title_nonstem'], True), - (['metadata', 'metadata_nonstem'], True), - (['themes_pl', 'themes_pl_nonstem'], False), - ) - for fields, is_book in fieldsets: - search_fields += fields - results_parts.append(search.search_words(words, search_fields, required=fields, book=is_book, picture=True)) - results = [] - ids_results = {} - for results_part in results_parts: - for result in sorted(PictureResult.aggregate(results_part), reverse=True): - picture_id = result.picture_id - if picture_id in ids_results: - ids_results[picture_id].merge(result) - else: - results.append(result) - ids_results[picture_id] = result - - def ensure_exists(r): - try: - if not r.picture: - return False - except Picture.DoesNotExist: - return False - - if epoch and not r.picture.tags.filter(category='epoch', slug=epoch).exists(): - return False - if kind and not r.picture.tags.filter(category='kind', slug=kind).exists(): - return False - if genre and not r.picture.tags.filter(category='genre', slug=genre).exists(): - return False - - return True - - results = [r for r in results if ensure_exists(r)] - return results - - -def search_pd_authors(query): - pd_authors = Author.objects.filter(name__icontains=query) - existing_slugs = Tag.objects.filter( - category='author', slug__in=list(pd_authors.values_list('slug', flat=True))) \ - .values_list('slug', flat=True) - pd_authors = pd_authors.exclude(slug__in=existing_slugs) - return pd_authors - - -def prepare_query(query): - query = ' '.join(query.split()) - # filter out private use characters - import unicodedata - query = ''.join(ch for ch in query if unicodedata.category(ch) != 'Co') - query = remove_query_syntax_chars(query) - - words = query.split() - if len(words) > 10: - query = ' '.join(words[:10]) - return query