-
-
+# -*- 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.contrib.auth.decorators import login_required
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.
+
+ tags = search.hint_tags(prefix, pdcounter=True)
+ books = search.hint_books(prefix)
+
+ 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
+
+ tags = filter(lambda t: not is_dupe(t), tags)
-from catalogue.utils import get_random_hash
-from catalogue.models import Book, Tag
-from catalogue import forms
-from search import MultiSearch, JVM, SearchResult
+ def category_name(c):
+ if c.startswith('pd_'):
+ c = c[len('pd_'):]
+ return _(c)
+ callback = request.GET.get('callback', None)
+ data = [{'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]
+ 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 = {}
- JVM.attachCurrentThread() # where to put this?
- srch = MultiSearch()
results = None
- if 'q' in request.GET:
- toks = srch.get_tokens(request.GET['q'])
- results = SearchResult.aggregate(srch.search_perfect_book(toks),
- srch.search_perfect_parts(toks),
- srch.search_everywhere(toks))
- results.sort(reverse=True)
-
- for r in results:
- print r.parts
-
- return render_to_response('newsearch/search.html', {"results": results},
- context_instance=RequestContext(request))
+ 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