X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/124258c72bb9e69e6336de195f3a3b3e74509b95..fe3cc2a284f1aa7457b0ec9491203aae100681a6:/apps/search/views.py diff --git a/apps/search/views.py b/apps/search/views.py index ff348a5a7..cf008705d 100644 --- a/apps/search/views.py +++ b/apps/search/views.py @@ -1,5 +1,6 @@ # -*- 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 @@ -8,24 +9,32 @@ from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpRespons from django.utils.translation import ugettext as _ from catalogue.utils import get_random_hash -from catalogue.models import Book, Tag, Fragment, TAG_CATEGORIES +from catalogue.models import Book, Tag, Fragment from catalogue.fields import dumps from catalogue.views import JSONResponse -from catalogue import forms from search import Search, JVM, SearchResult from lucene import StringReader from suggest.forms import PublishingSuggestForm - +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 = {} - # sprawdzić, czy słowo nie jest aby autorem - proste szukanie termu w author! for t in tokens: - print("%s ok? %s, sug: %s" %(t, dictionary.check(t), dictionary.suggest(t))) + authors = Tag.objects.filter(category='author', name__iregex=match_word_re(t)) + if len(authors) > 0: + continue + if not dictionary.check(t): try: change[t] = dictionary.suggest(t)[0] @@ -60,7 +69,6 @@ def hint(request): # 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 = s.hint_tags(prefix) books = s.hint_books(prefix) @@ -79,18 +87,6 @@ def hint(request): for b in books]) -def foo(s, q, tag_list=None): - hint = s.hint() - try: - tag_list = Tag.get_tag_list(tag_list) - hint.tags(tag_list) - except: - tag_list = None - - q = StringReader(q) - return (q, hint) - - def main(request): results = {} JVM.attachCurrentThread() # where to put this? @@ -123,38 +119,86 @@ def main(request): hint.books(book) toks = StringReader(query) + tokens_cache = {} fuzzy = 'fuzzy' in request.GET if fuzzy: fuzzy = 0.7 - results = SearchResult.aggregate(srch.search_perfect_book(toks, fuzzy=fuzzy, hint=hint), - srch.search_perfect_parts(toks, fuzzy=fuzzy, hint=hint), - srch.search_everywhere(toks, fuzzy=fuzzy, hint=hint)) + author_results = srch.search_phrase(toks, 'authors', fuzzy=fuzzy, tokens_cache=tokens_cache) + title_results = srch.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 = srch.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( + srch.search_phrase(toks, 'content', fuzzy=fuzzy, tokens_cache=tokens_cache, snippets=True, book=False, slop=4), + srch.search_some(toks, ['content'], tokens_cache=tokens_cache, snippets=True, book=False)) + + everywhere = srch.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, srch.get_tokens(toks, field="SIMPLE")) + print "dym? %s" % repr(suggestion).encode('utf-8') + + results = author_results + title_results + text_phrase + everywhere results.sort(reverse=True) - - for r in results: - print r.hits - + if len(results) == 1: - if len(results[0].hits) == 0: - return HttpResponseRedirect(results[0].book.get_absolute_url()) - elif len(results[0].hits) == 1 and results[0].hits[0] is not None: - frag = Fragment.objects.get(anchor=results[0].hits[0]) + 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(frag.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': tag_list, 'prefix': query, "pubsuggest_form": form, - 'form': forms.SearchForm()}, + {'tags': tag_list, + 'prefix': query, + "form": form, + 'did_you_mean': suggestion}, context_instance=RequestContext(request)) return render_to_response('catalogue/search_multiple_hits.html', - {'tags': tag_list, 'prefix': query, - 'results': results, 'from': forms.SearchForm()}, + {'tags': tag_list, + 'prefix': query, + 'results': { 'author': author_results, + 'title': title_results, + 'content': text_phrase, + 'other': everywhere}, + 'did_you_mean': suggestion}, context_instance=RequestContext(request)) - - # return render_to_response('newsearch/search.html', {'results': results, - # 'did_you_mean': (query is not None) and - # did_you_mean(query, srch.get_tokens(query, field='SIMPLE')), - # 'fuzzy': fuzzy}, - # context_instance=RequestContext(request))