X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/357027375ff8867f42ca34bcbfb5a78b5b185fc3..eb383b976ed875888b261bf5901ee484aa2dcf8f:/src/search/views.py diff --git a/src/search/views.py b/src/search/views.py index f7aa77cd9..b5cc0baa3 100644 --- a/src/search/views.py +++ b/src/search/views.py @@ -1,23 +1,23 @@ -# -*- coding: utf-8 -*- # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later. # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # from django.conf import settings -from django.shortcuts import render_to_response, get_object_or_404 -from django.template import RequestContext +from django.http.response import HttpResponseRedirect +from django.shortcuts import render from django.views.decorators import cache -from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect, JsonResponse -from django.utils.translation import ugettext as _ +from django.http import HttpResponse, JsonResponse -from catalogue.utils import split_tags -from catalogue.models import Book, Tag, Fragment -from pdcounter.models import Author as PDCounterAuthor, BookStub as PDCounterBook -from search.index import Search, SearchResult +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 enchant import json +from wolnelektury.utils import re_escape + def match_word_re(word): if 'sqlite' in settings.DATABASES['default']['ENGINE']: @@ -26,11 +26,11 @@ def match_word_re(word): return "[[:<:]]%s[[:>:]]" % word -query_syntax_chars = re.compile(r"[\\/*:(){}]") +query_syntax_chars = re.compile(r"[\\/*:(){}?.[\]+]") def remove_query_syntax_chars(query, replace=' '): - return query_syntax_chars.sub(' ', query) + return query_syntax_chars.sub(replace, query) def did_you_mean(query, tokens): @@ -60,67 +60,54 @@ def did_you_mean(query, tokens): @cache.never_cache -def hint(request): - prefix = request.GET.get('term', '') +def hint(request, mozhint=False, param='term'): + prefix = request.GET.get(param, '') if len(prefix) < 2: return JsonResponse([], safe=False) - prefix = remove_query_syntax_chars(prefix) - - search = Search() - # tagi beda ograniczac tutaj - # ale tagi moga byc na ksiazce i na fragmentach - # jezeli tagi dot tylko ksiazki, to wazne zeby te nowe byly w tej samej ksiazce - # jesli zas dotycza themes, to wazne, zeby byly w tym samym fragmencie. - - def is_dupe(tag): - if isinstance(tag, PDCounterAuthor): - if filter(lambda t: t.slug == tag.slug and t != tag, tags): - return True - elif isinstance(tag, PDCounterBook): - if filter(lambda b: b.slug == tag.slug, tags): - return True - return False - - def category_name(c): - if c.startswith('pd_'): - c = c[len('pd_'):] - return _(c) + prefix = re_escape(' '.join(remove_query_syntax_chars(prefix).split())) try: limit = int(request.GET.get('max', '')) except ValueError: - limit = -1 + limit = 20 else: if limit < 1: - limit = -1 - - data = [] - - tags = search.hint_tags(prefix, pdcounter=True) - tags = filter(lambda t: not is_dupe(t), tags) - for t in tags: - if not limit: - break - limit -= 1 - data.append({ - 'label': t.name, - 'category': category_name(t.category), - 'id': t.id, - 'url': t.get_absolute_url() - }) - if limit: - books = search.hint_books(prefix) - for b in books: - if not limit: - break - limit -= 1 - data.append({ - 'label': b.title, - 'category': _('book'), - 'id': b.id, - 'url': b.get_absolute_url() - }) + limit = 20 + + authors = Tag.objects.filter( + category='author', name_pl__iregex='\m' + prefix).only('name', 'id', 'slug', 'category') + data = [ + { + 'label': author.name, + 'id': author.id, + 'url': author.get_absolute_url(), + } + for author in authors[:limit] + ] + if len(data) < limit: + for b in Book.objects.filter(findable=True, title__iregex='\m' + prefix)[:limit-len(data)]: + author_str = b.author_unicode() + translator = b.translator() + if translator: + author_str += ' (tłum. ' + translator + ')' + data.append( + { + 'label': b.title, + 'author': author_str, + 'id': b.id, + 'url': b.get_absolute_url() + } + ) + + if mozhint: + data = [ + prefix, + [ + item['label'] + for item in data + ] + ] callback = request.GET.get('callback', None) if callback: @@ -130,126 +117,228 @@ def hint(request): return JsonResponse(data, safe=False) + @cache.never_cache -def main(request): - results = {} +def search(request): + filters = SearchFilters(request.GET) + ctx = { + 'title': 'Wynik wyszukiwania', + 'query': request.GET.get('q', ''), + 'filters': filters, + } + if filters.is_valid(): + ctx['results'] = filters.results() + for k, v in ctx['results'].items(): + if v: + ctx['hasresults'] = True + break + return render(request, 'search/results.html', ctx) + - results = None - query = None +@cache.never_cache +def main(request): + if request.EXPERIMENTS['layout'].value: + return search(request) query = request.GET.get('q', '') - if len(query) < 2: - return render_to_response('catalogue/search_too_short.html', - {'prefix': query}, - context_instance=RequestContext(request)) + 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') - query = remove_query_syntax_chars(query) + 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 - theme_terms = search.index.analyze(text=query, field="themes_pl") \ - + search.index.analyze(text=query, field="themes") - - # change hints - tags = search.hint_tags(query, pdcounter=True, prefix=False) - tags = split_tags(tags) - - author_results = search.search_phrase(query, 'authors', book=True) - translator_results = search.search_phrase(query, 'translators', book=True) - - title_results = search.search_phrase(query, 'title', book=True) - - # Boost main author/title results with mixed search, and save some of its results for end of list. - # boost author, title results - author_title_mixed = search.search_some(query, ['authors', 'translators', 'title', 'tags'], query_terms=theme_terms) - author_title_rest = [] - - for b in author_title_mixed: - also_in_mixed = filter(lambda ba: ba.book_id == b.book_id, author_results + translator_results + title_results) - for b2 in also_in_mixed: - b2.boost *= 1.1 - if also_in_mixed is []: - author_title_rest.append(b) - - # Do a phrase search but a term search as well - this can give us better snippets then search_everywhere, - # Because the query is using only one field. - text_phrase = SearchResult.aggregate( - search.search_phrase(query, 'text', snippets=True, book=False), - search.search_some(query, ['text'], snippets=True, book=False, query_terms=theme_terms)) - - everywhere = search.search_everywhere(query, query_terms=theme_terms) - - def already_found(results): - def f(e): - for r in results: - if e.book_id == r.book_id: - e.boost = 0.9 - results.append(e) - return True + 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 f - f = already_found(author_results + translator_results + title_results + text_phrase) - everywhere = filter(lambda x: not f(x), everywhere) - author_results = SearchResult.aggregate(author_results) - translator_results = SearchResult.aggregate(translator_results) - title_results = SearchResult.aggregate(title_results) + return True - everywhere = SearchResult.aggregate(everywhere, author_title_rest) + results = [r for r in results if ensure_exists(r)] + return results - for field, res in [('authors', author_results), - ('translators', translator_results), - ('title', title_results), - ('text', text_phrase), - ('text', everywhere)]: - res.sort(reverse=True) - for r in res: - search.get_snippets(r, query, field, 3) - suggestion = u'' +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: - return r.book - except Book.DoesNotExist: + if not r.picture: + return False + except Picture.DoesNotExist: return False - author_results = filter(ensure_exists, author_results) - translator_results = filter(ensure_exists, translator_results) - title_results = filter(ensure_exists, title_results) - text_phrase = filter(ensure_exists, text_phrase) - everywhere = filter(ensure_exists, everywhere) - - results = author_results + translator_results + title_results + text_phrase + everywhere - # ensure books do exists & sort them - for res in (author_results, translator_results, title_results, text_phrase, everywhere): - res.sort(reverse=True) - - # We don't want to redirect to book text, but rather display result page even with one result. - # if len(results) == 1: - # fragment_hits = filter(lambda h: 'fragment' in h, results[0].hits) - # if len(fragment_hits) == 1: - # #anchor = fragment_hits[0]['fragment'] - # #frag = Fragment.objects.get(anchor=anchor) - # return HttpResponseRedirect(fragment_hits[0]['fragment'].get_absolute_url()) - # return HttpResponseRedirect(results[0].book.get_absolute_url()) - if len(results) == 0: - form = PublishingSuggestForm(initial={"books": query + ", "}) - return render_to_response('catalogue/search_no_hits.html', - {'tags': tags, - 'prefix': query, - "form": form, - 'did_you_mean': suggestion}, - context_instance=RequestContext(request)) - - return render_to_response('catalogue/search_multiple_hits.html', - {'tags': tags, - 'prefix': query, - 'results': {'author': author_results, - 'translator': translator_results, - 'title': title_results, - 'content': text_phrase, - 'other': everywhere}, - 'did_you_mean': suggestion}, - context_instance=RequestContext(request)) + 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