+# -*- 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 get_random_hash
-from catalogue.models import Book, Tag
-from catalogue import forms
-from search import MultiSearch, JVM
+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[t] = dictionary.suggest(t)[0]
+ except IndexError:
+ pass
+
+ if change == {}:
+ return None
+
+ for frm, to in change.items():
+ query = query.replace(frm, to)
+
+ return query
+
+
+def hint(request):
+ prefix = request.GET.get('term', '')
+ if len(prefix) < 2:
+ return JSONResponse([])
+ JVM.attachCurrentThread()
+ s = Search()
+
+ hint = s.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 = s.hint_tags(prefix)
+ books = s.hint_books(prefix)
+
+ # TODO DODAC TU HINTY
+
+ return JSONResponse(
+ [{'label': t.name,
+ 'category': _(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?
- srch = MultiSearch()
+ srch = Search()
results = None
+ query = None
+ fuzzy = False
+
if 'q' in request.GET:
- toks = srch.get_tokens(request.GET['q'])
- results = srch.search_perfect(toks) + srch.search_everywhere(toks)
- results.sort(lambda a, b: cmp(a[0], b[0]) < 0)
- print("searched, results are: %s\n" % results)
+ tags = request.GET.get('tags', '')
+ query = request.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 = srch.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', {'tags': tag_list, 'prefix': query},
+ context_instance=RequestContext(request))
+
+ hint.tags(tag_list)
+ if book:
+ hint.books(book)
+
+ toks = StringReader(query)
+ tokens_cache = {}
+ fuzzy = 'fuzzy' in request.GET
+ if fuzzy:
+ fuzzy = 0.7
+
+ 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)
+
+ 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(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,
+ "form": form,
+ 'did_you_mean': suggestion},
+ context_instance=RequestContext(request))
- return render_to_response('newsearch/search.html', {"results": results},
- context_instance=RequestContext(request))
+ return render_to_response('catalogue/search_multiple_hits.html',
+ {'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))
fnp / wolnelektury.git / blobdiff