+++ /dev/null
-# -*- 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.views.decorators import cache
-from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect, JsonResponse
-from django.utils.translation import ugettext as _
-
-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 suggest.forms import PublishingSuggestForm
-import re
-#import enchant
-import json
-
-
-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"[\\/*:(){}]")
-
-
-def remove_query_syntax_chars(query, replace=' '):
- return query_syntax_chars.sub(' ', 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):
- prefix = request.GET.get('term', '')
- 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)
-
- try:
- limit = int(request.GET.get('max', ''))
- except ValueError:
- limit = -1
- 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()
- })
-
- callback = request.GET.get('callback', None)
- if callback:
- return HttpResponse("%s(%s);" % (callback, json.dumps(data)),
- content_type="application/json; charset=utf-8")
- else:
- return JsonResponse(data, safe=False)
-
-
-@cache.never_cache
-def main(request):
- results = {}
-
- results = None
- query = None
-
- query = request.GET.get('q', '')
-
- if len(query) < 2:
- return render_to_response('catalogue/search_too_short.html',
- {'prefix': query},
- context_instance=RequestContext(request))
-
- query = remove_query_syntax_chars(query)
-
- search = Search()
-
- 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
- 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)
-
- everywhere = SearchResult.aggregate(everywhere, author_title_rest)
-
- 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 ensure_exists(r):
- try:
- return r.book
- except Book.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))
fnp / wolnelektury.git / blobdiff