-# -*- 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 functools import reduce, total_ordering
+from itertools import chain
+import logging
+import operator
import os
import re
+from django.conf import settings
from librarian import dcparser
from librarian.parser import WLDocument
from lxml import etree
+import scorched
import catalogue.models
+import picture.models
from pdcounter.models import Author as PDCounterAuthor, BookStub as PDCounterBook
-from itertools import chain
-import sunburnt
-import custom
-import operator
-import logging
from wolnelektury.utils import makedirs
+from . import custom
log = logging.getLogger('search')
+
if os.path.isfile(settings.SOLR_STOPWORDS):
stopwords = set(
- line.decode('utf-8').strip()
+ line.strip()
for line in open(settings.SOLR_STOPWORDS) if not line.startswith('#'))
else:
stopwords = set()
of the snippet stored there.
"""
self.file.seek(pos[0], 0)
- txt = self.file.read(pos[1]).decode('utf-8')
+ try:
+ txt = self.file.read(pos[1]).decode('utf-8')
+ except:
+ return ''
return txt
def close(self):
"""
uids = set()
for q in queries:
- if isinstance(q, sunburnt.search.LuceneQuery):
+ if isinstance(q, scorched.search.LuceneQuery):
q = self.index.query(q)
q.field_limiter.update(['uid'])
st = 0
uids.add(res['uid'])
st += rows
if uids:
- self.index.delete(uids)
+ # FIXME: With Solr API change, this doesn't work.
+ #self.index.delete(uids)
return True
else:
return False
elif type_indicator == dcparser.as_person:
p = getattr(book_info, field.name)
if isinstance(p, dcparser.Person):
- persons = unicode(p)
+ persons = str(p)
else:
- persons = ', '.join(map(unicode, p))
+ persons = ', '.join(map(str, p))
fields[field.name] = persons
elif type_indicator == dcparser.as_date:
dt = getattr(book_info, field.name)
return
def fix_format(text):
- # separator = [u" ", u"\t", u".", u";", u","]
+ # separator = [" ", "\t", ".", ";", ","]
if isinstance(text, list):
# need to join it first
text = filter(lambda s: s is not None, content)
- text = u' '.join(text)
+ text = ' '.join(text)
# for i in range(len(text)):
# if i > 0:
# if text[i][0] not in separator\
# and text[i - 1][-1] not in separator:
- # text.insert(i, u" ")
+ # text.insert(i, " ")
return re.sub("(?m)/$", "", text)
elif end is not None and footnote is not [] and end.tag in self.footnote_tags:
handle_text.pop()
doc = add_part(snippets, header_index=position, header_type=header.tag,
- text=u''.join(footnote),
+ text=''.join(footnote),
is_footnote=True)
self.index.add(doc)
footnote = []
fid = start.attrib['id'][1:]
handle_text.append(lambda text: None)
if start.text is not None:
- fragments[fid]['themes'] += map(unicode.strip, map(unicode, (start.text.split(','))))
+ fragments[fid]['themes'] += map(str.strip, map(str, (start.text.split(','))))
elif end is not None and end.tag == 'motyw':
handle_text.pop()
finally:
snippets.close()
+ def remove_picture(self, picture_or_id):
+ """Removes a picture from search index."""
+ if isinstance(picture_or_id, picture.models.Picture):
+ picture_id = picture_or_id.id
+ else:
+ picture_id = picture_or_id
+ self.delete_query(self.index.Q(picture_id=picture_id))
+
+ def index_picture(self, picture, picture_info=None, overwrite=True):
+ """
+ Indexes the picture.
+ Creates a lucene document for extracted metadata
+ and calls self.index_area() to index the contents of the picture.
+ """
+ if overwrite:
+ # we don't remove snippets, since they might be still needed by
+ # threads using not reopened index
+ self.remove_picture(picture)
+
+ picture_doc = {'picture_id': int(picture.id)}
+ meta_fields = self.extract_metadata(picture, picture_info, dc_only=[
+ 'authors', 'title', 'epochs', 'kinds', 'genres'])
+
+ picture_doc.update(meta_fields)
+
+ picture_doc['uid'] = "picture%s" % picture_doc['picture_id']
+ self.index.add(picture_doc)
+ del picture_doc['is_book']
+ for area in picture.areas.all():
+ self.index_area(area, picture_fields=picture_doc)
+
+ def index_area(self, area, picture_fields):
+ """
+ Indexes themes and objects on the area.
+ """
+ doc = dict(picture_fields)
+ doc['area_id'] = area.id
+ doc['themes'] = list(area.tags.filter(category__in=('theme', 'thing')).values_list('name', flat=True))
+ doc['uid'] = 'area%s' % area.id
+ self.index.add(doc)
+
+@total_ordering
class SearchResult(object):
def __init__(self, doc, how_found=None, query_terms=None):
self.boost = 1.0
result._book = book
return result
- def __unicode__(self):
- return u"<SR id=%d %d(%d) hits score=%f %d snippets>" % \
+ def __str__(self):
+ return "<SR id=%d %d(%d) hits score=%f %d snippets>" % \
(self.book_id, len(self._hits),
len(self._processed_hits) if self._processed_hits else -1,
self._score, len(self.snippets))
- def __str__(self):
- return unicode(self).encode('utf-8')
+ def __bytes__(self):
+ return str(self).encode('utf-8')
@property
def score(self):
def get_book(self):
if self._book is not None:
return self._book
- self._book = catalogue.models.Book.objects.get(id=self.book_id)
+ try:
+ self._book = catalogue.models.Book.objects.get(id=self.book_id, findable=True)
+ except catalogue.models.Book.DoesNotExist:
+ self._book = None
return self._book
book = property(get_book)
# to sections and fragments
frags = filter(lambda r: r[self.FRAGMENT] is not None, self._hits)
- sect = filter(lambda r: r[self.FRAGMENT] is None, self._hits)
+ sect = [hit for hit in self._hits if hit[self.FRAGMENT] is None]
# sections not covered by fragments
- sect = filter(lambda s: 0 == len(filter(
+ sect = filter(lambda s: 0 == len(list(filter(
lambda f: f[self.POSITION][self.POSITION_INDEX] <= s[self.POSITION][self.POSITION_INDEX] <
- f[self.POSITION][self.POSITION_INDEX] + f[self.POSITION][self.POSITION_SPAN], frags)), sect)
+ f[self.POSITION][self.POSITION_INDEX] + f[self.POSITION][self.POSITION_SPAN], frags))), sect)
- def remove_duplicates(lst, keyfn, compare):
+ def remove_duplicates(lst, keyfn, larger):
els = {}
for e in lst:
eif = keyfn(e)
if eif in els:
- if compare(els[eif], e) >= 1:
+ if larger(els[eif], e):
continue
els[eif] = e
return els.values()
# remove fragments with duplicated fid's and duplicated snippets
- frags = remove_duplicates(frags, lambda f: f[self.FRAGMENT], lambda a, b: cmp(a[self.SCORE], b[self.SCORE]))
- # frags = remove_duplicates(frags, lambda f: f[OTHER]['snippet_pos'] and f[OTHER]['snippet_pos'] or f[FRAGMENT],
- # lambda a, b: cmp(a[SCORE], b[SCORE]))
+ frags = remove_duplicates(frags, lambda f: f[self.FRAGMENT], lambda a, b: a[self.SCORE] > b[self.SCORE])
# remove duplicate sections
sections = {}
m.update(s[self.OTHER])
sections[si] = m
- hits = sections.values()
+ hits = list(sections.values())
for f in frags:
try:
if self.query_terms is not None:
for i in range(0, len(f[self.OTHER]['themes'])):
tms = f[self.OTHER]['themes'][i].split(r' +') + f[self.OTHER]['themes_pl'][i].split(' ')
- tms = map(unicode.lower, tms)
+ tms = map(str.lower, tms)
for qt in self.query_terms:
if qt in tms:
themes_hit.add(f[self.OTHER]['themes'][i])
break
def theme_by_name(n):
- th = filter(lambda t: t.name == n, themes)
+ th = list(filter(lambda t: t.name == n, themes))
if th:
return th[0]
else:
return None
- themes_hit = filter(lambda a: a is not None, map(theme_by_name, themes_hit))
+ themes_hit = list(filter(lambda a: a is not None, map(theme_by_name, themes_hit)))
m = {'score': f[self.SCORE],
'fragment': frag,
books[r.book_id] = r
return books.values()
- def __cmp__(self, other):
- c = cmp(self.score, other.score)
- if c == 0:
- # this is inverted, because earlier date is better
- return cmp(other.published_date, self.published_date)
- else:
- return c
+ def get_sort_key(self):
+ return (-self.score,
+ self.published_date,
+ self.book.sort_key_author if self.book else '',
+ self.book.sort_key if self.book else '')
+
+ def __lt__(self, other):
+ return self.get_sort_key() > other.get_sort_key()
+
+ def __eq__(self, other):
+ return self.get_sort_key() == other.get_sort_key()
def __len__(self):
return len(self.hits)
return None
+@total_ordering
+class PictureResult(object):
+ def __init__(self, doc, how_found=None, query_terms=None):
+ self.boost = 1.0
+ self.query_terms = query_terms
+ self._picture = None
+ self._hits = []
+ self._processed_hits = None
+
+ if 'score' in doc:
+ self._score = doc['score']
+ else:
+ self._score = 0
+
+ self.picture_id = int(doc["picture_id"])
+
+ if doc.get('area_id'):
+ hit = (self._score, {
+ 'how_found': how_found,
+ 'area_id': doc['area_id'],
+ 'themes': doc.get('themes', []),
+ 'themes_pl': doc.get('themes_pl', []),
+ })
+
+ self._hits.append(hit)
+
+ def __str__(self):
+ return "<PR id=%d score=%f >" % (self.picture_id, self._score)
+
+ def __repr__(self):
+ return str(self)
+
+ @property
+ def score(self):
+ return self._score * self.boost
+
+ def merge(self, other):
+ if self.picture_id != other.picture_id:
+ raise ValueError(
+ "this search result is for picture %d; tried to merge with %d" % (self.picture_id, other.picture_id))
+ self._hits += other._hits
+ self._score += max(other._score, 0)
+ return self
+
+ SCORE = 0
+ OTHER = 1
+
+ @property
+ def hits(self):
+ if self._processed_hits is not None:
+ return self._processed_hits
+
+ hits = []
+ for hit in self._hits:
+ try:
+ area = picture.models.PictureArea.objects.get(id=hit[self.OTHER]['area_id'])
+ except picture.models.PictureArea.DoesNotExist:
+ # stale index
+ continue
+ # Figure out if we were searching for a token matching some word in theme name.
+ themes_hit = set()
+ if self.query_terms is not None:
+ for i in range(0, len(hit[self.OTHER]['themes'])):
+ tms = hit[self.OTHER]['themes'][i].split(r' +') + hit[self.OTHER]['themes_pl'][i].split(' ')
+ tms = map(str.lower, tms)
+ for qt in self.query_terms:
+ if qt in tms:
+ themes_hit.add(hit[self.OTHER]['themes'][i])
+ break
+
+ m = {
+ 'score': hit[self.SCORE],
+ 'area': area,
+ 'themes_hit': themes_hit,
+ }
+ m.update(hit[self.OTHER])
+ hits.append(m)
+
+ hits.sort(key=lambda h: h['score'], reverse=True)
+ hits = hits[:1]
+ self._processed_hits = hits
+ return hits
+
+ def get_picture(self):
+ if self._picture is None:
+ self._picture = picture.models.Picture.objects.get(id=self.picture_id)
+ return self._picture
+
+ picture = property(get_picture)
+
+ @staticmethod
+ def aggregate(*result_lists):
+ books = {}
+ for rl in result_lists:
+ for r in rl:
+ if r.picture_id in books:
+ books[r.picture_id].merge(r)
+ else:
+ books[r.picture_id] = r
+ return books.values()
+
+ def __lt__(self, other):
+ return self.score < other.score
+
+ def __eq__(self, other):
+ return self.score == other.score
+
+
class Search(SolrIndex):
"""
Search facilities.
def search_by_author(self, words):
from catalogue.models import Book
- books = Book.objects.filter(parent=None).order_by('-popularity__count')
+ books = Book.objects.filter(parent=None, findable=True).order_by('-popularity__count')
for word in words:
books = books.filter(cached_author__iregex='\m%s\M' % word).select_related('popularity__count')
return [SearchResult.from_book(book, how_found='search_by_author', query_terms=words) for book in books[:30]]
- def search_words(self, words, fields, book=True):
- if book and fields == ['authors']:
+ def search_words(self, words, fields, required=None, book=True, picture=False):
+ if book and not picture and fields == ['authors']:
return self.search_by_author(words)
filters = []
for word in words:
- if book or (word not in stopwords):
+ if book or picture or (word not in stopwords):
word_filter = None
for field in fields:
q = self.index.Q(**{field: word})
else:
word_filter |= q
filters.append(word_filter)
+ if required:
+ required_filter = None
+ for field in required:
+ for word in words:
+ if book or picture or (word not in stopwords):
+ q = self.index.Q(**{field: word})
+ if required_filter is None:
+ required_filter = q
+ else:
+ required_filter |= q
+ filters.append(required_filter)
if not filters:
return []
+ params = {}
if book:
- query = self.index.query(is_book=True)
+ params['is_book'] = True
+ if picture:
+ params['picture_id__gt'] = 0
else:
- query = self.index.query()
+ params['book_id__gt'] = 0
+ query = self.index.query(**params)
query = self.apply_filters(query, filters).field_limit(score=True, all_fields=True)
- return [SearchResult(found, how_found='search_words', query_terms=words) for found in query.execute()]
+ result_class = PictureResult if picture else SearchResult
+ return [result_class(found, how_found='search_words', query_terms=words) for found in query.execute()]
def get_snippets(self, searchresult, query, field='text', num=1):
"""
text = snippets.get((int(position),
int(length)))
snip = self.index.highlight(text=text, field=field, q=query)
+ if not snip and field == 'text':
+ snip = self.index.highlight(text=text, field='text_nonstem', q=query)
if snip not in snips:
snips[idx] = snip
if snip:
num -= 1
idx += 1
- except IOError, e:
- book = catalogue.models.Book.objects.filter(id=book_id)
+ except IOError as e:
+ book = catalogue.models.Book.objects.filter(id=book_id, findable=True)
if not book:
log.error("Book does not exist for book id = %d" % book_id)
elif not book.get().children.exists():
finally:
snippets.close()
- # remove verse end markers..
- snips = map(lambda s: s and s.replace("/\n", "\n"), snips)
+ # remove verse end markers..
+ snips = [s.replace("/\n", "\n") if s else s for s in snips]
searchresult.snippets = snips
fnp / wolnelektury.git / blobdiff