X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/80ab7c8128a710975c5d705278f01d74de557ee7..ae60b2a3949e96357477cc04f90fd0873cee8a92:/apps/search/views.py diff --git a/apps/search/views.py b/apps/search/views.py deleted file mode 100644 index fd5883ede..000000000 --- a/apps/search/views.py +++ /dev/null @@ -1,233 +0,0 @@ -# -*- coding: utf-8 -*- - -from django.conf import settings -from django.shortcuts import render_to_response, get_object_or_404 -from django.template import RequestContext -from django.contrib.auth.decorators import login_required -from django.views.decorators import cache -from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect -from django.utils.translation import ugettext as _ - -from catalogue.utils import split_tags -from catalogue.models import Book, Tag, Fragment -from catalogue.views import JSONResponse -from search import Search, JVM, SearchResult -from lucene import StringReader -from suggest.forms import PublishingSuggestForm -from time import sleep -import re -import enchant - -dictionary = enchant.Dict('pl_PL') - - -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 - - -def did_you_mean(query, tokens): - change = {} - for t in tokens: - authors = Tag.objects.filter(category='author', name__iregex=match_word_re(t)) - if len(authors) > 0: - continue - - 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 - - -JVM.attachCurrentThread() -_search = None - - -def get_search(): - global _search - - while _search is False: - sleep(1) - - if _search is None: - _search = False - _search = Search() - return _search - - -def hint(request): - prefix = request.GET.get('term', '') - if len(prefix) < 2: - return JSONResponse([]) - JVM.attachCurrentThread() - - search = get_search() - hint = search.hint() - try: - tags = request.GET.get('tags', '') - hint.tags(Tag.get_tag_list(tags)) - except: - pass - - # 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. - - tags = search.hint_tags(prefix, pdcounter=True) - books = search.hint_books(prefix) - - def category_name(c): - if c.startswith('pd_'): - c = c[len('pd_'):] - return _(c) - - return JSONResponse( - [{'label': t.name, - 'category': category_name(t.category), - 'id': t.id, - 'url': t.get_absolute_url()} - for t in tags] + \ - [{'label': b.title, - 'category': _('book'), - 'id': b.id, - 'url': b.get_absolute_url()} - for b in books]) - - -def main(request): - results = {} - JVM.attachCurrentThread() # where to put this? - - results = None - query = None - fuzzy = False #0.8 - - query = request.GET.get('q','') - # book_id = request.GET.get('book', None) - # book = None - # if book_id is not None: - # book = get_object_or_404(Book, id=book_id) - - # hint = search.hint() - # try: - # tag_list = Tag.get_tag_list(tags) - # except: - # tag_list = [] - - if len(query) < 2: - return render_to_response('catalogue/search_too_short.html', {'prefix': query}, - context_instance=RequestContext(request)) - - search = get_search() - # hint.tags(tag_list) - # if book: - # hint.books(book) - tags = search.hint_tags(query, pdcounter=True, prefix=False, fuzzy=fuzzy) - tags = split_tags(tags) - - toks = StringReader(query) - tokens_cache = {} - - author_results = search.search_phrase(toks, 'authors', fuzzy=fuzzy, tokens_cache=tokens_cache) - title_results = search.search_phrase(toks, 'title', fuzzy=fuzzy, tokens_cache=tokens_cache) - - # 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(toks, ['authors', 'title', 'tags'], fuzzy=fuzzy, tokens_cache=tokens_cache) - author_title_rest = [] - for b in author_title_mixed: - bks = filter(lambda ba: ba.book_id == b.book_id, author_results + title_results) - for b2 in bks: - b2.boost *= 1.1 - if bks 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(toks, 'content', fuzzy=fuzzy, tokens_cache=tokens_cache, snippets=True, book=False, slop=4), - search.search_some(toks, ['content'], tokens_cache=tokens_cache, snippets=True, book=False)) - - everywhere = search.search_everywhere(toks, fuzzy=fuzzy, tokens_cache=tokens_cache) - - 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 + title_results + text_phrase) - everywhere = filter(lambda x: not f(x), everywhere) - - author_results = SearchResult.aggregate(author_results) - title_results = SearchResult.aggregate(title_results) - - everywhere = SearchResult.aggregate(everywhere, author_title_rest) - - for res in [author_results, title_results, text_phrase, everywhere]: - res.sort(reverse=True) - for r in res: - for h in r.hits: - h['snippets'] = map(lambda s: - re.subn(r"(^[ \t\n]+|[ \t\n]+$)", u"", - re.subn(r"[ \t\n]*\n[ \t\n]*", u"\n", s)[0])[0], h['snippets']) - - suggestion = did_you_mean(query, search.get_tokens(toks, field="SIMPLE")) - - def ensure_exists(r): - try: - return r.book - except Book.DoesNotExist: - return False - - author_results = filter(ensure_exists, author_results) - title_results = filter(ensure_exists, title_results) - text_phrase = filter(ensure_exists, text_phrase) - everywhere = filter(ensure_exists, everywhere) - - results = author_results + title_results + text_phrase + everywhere - # ensure books do exists & sort them - results.sort(reverse=True) - - 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()) - elif 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, - 'title': title_results, - 'content': text_phrase, - 'other': everywhere}, - 'did_you_mean': suggestion}, - context_instance=RequestContext(request))