+++ /dev/null
-# -*- 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.fields import dumps
-from catalogue.views import JSONResponse
-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 = {}
- 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 = Search()
-
-
-def hint(request):
- prefix = request.GET.get('term', '')
- if len(prefix) < 2:
- return JSONResponse([])
- JVM.attachCurrentThread()
-
- 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))
-
- # 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))
fnp / wolnelektury.git / blobdiff