-# -*- 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.strip()
+ for line in open(settings.SOLR_STOPWORDS) if not line.startswith('#'))
+else:
+ stopwords = set()
+
+
class SolrIndex(object):
def __init__(self, mode=None):
self.index = custom.CustomSolrInterface(settings.SOLR, mode=mode)
"""
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
book_info = dcparser.parse(open(book.xml_file.path))
fields['slug'] = book.slug
- fields['tags'] = [t.name for t in book.tags]
fields['is_book'] = True
# validator, name
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)
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
self._hits.append(hit)
- def __unicode__(self):
+ @classmethod
+ def from_book(cls, book, how_found=None, query_terms=None):
+ doc = {
+ 'score': book.popularity.count,
+ 'book_id': book.id,
+ 'published_date': 0,
+ }
+ result = cls(doc, how_found=how_found, query_terms=query_terms)
+ result._book = book
+ return result
+
+ def __str__(self):
return u"<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 merge(self, other):
if self.book_id != other.book_id:
- raise ValueError("this search result is or book %d; tried to merge with %d" % (self.book_id, other.book_id))
+ raise ValueError("this search result is for book %d; tried to merge with %d" % (self.book_id, other.book_id))
self._hits += other._hits
- if other.score > self.score:
- self._score = other._score
+ self._score += max(other._score, 0)
return 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)
+ 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):
els = {}
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 u"<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.
return q
- def search_words(self, words, fields, book=True):
+ def search_by_author(self, words):
+ from catalogue.models import Book
+ books = Book.objects.filter(parent=None).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, 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:
- word_filter = None
- for field in fields:
- q = self.index.Q(**{field: word})
- if word_filter is None:
- word_filter = q
- else:
- word_filter |= q
- filters.append(word_filter)
+ if book or picture or (word not in stopwords):
+ word_filter = None
+ for field in fields:
+ q = self.index.Q(**{field: word})
+ if word_filter is None:
+ word_filter = q
+ 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:
+ except IOError as e:
book = catalogue.models.Book.objects.filter(id=book_id)
if not book:
log.error("Book does not exist for book id = %d" % book_id)
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
return snips
- def hint_tags(self, query, pdcounter=True, prefix=True):
- """
- Return auto-complete hints for tags
- using prefix search.
- """
- q = self.index.Q()
- query = query.strip()
- for field in ['tag_name', 'tag_name_pl']:
- if prefix:
- q |= self.index.Q(**{field: query + "*"})
- else:
- q |= self.make_term_query(query, field=field)
- qu = self.index.query(q)
-
- return self.search_tags(qu, pdcounter=pdcounter)
-
- def search_tags(self, query, filters=None, pdcounter=False):
- """
- Search for Tag objects using query.
- """
- if not filters:
- filters = []
- if not pdcounter:
- filters.append(~self.index.Q(is_pdcounter=True))
- res = self.apply_filters(query, filters).execute()
-
- tags = []
- pd_tags = []
-
- for doc in res:
- is_pdcounter = doc.get('is_pdcounter', False)
- category = doc.get('tag_category')
- try:
- if is_pdcounter:
- if category == 'pd_author':
- tag = PDCounterAuthor.objects.get(id=doc.get('tag_id'))
- else: # category == 'pd_book':
- tag = PDCounterBook.objects.get(id=doc.get('tag_id'))
- tag.category = 'pd_book' # make it look more lik a tag.
- pd_tags.append(tag)
- else:
- tag = catalogue.models.Tag.objects.get(id=doc.get("tag_id"))
- tags.append(tag)
-
- except catalogue.models.Tag.DoesNotExist:
- pass
- except PDCounterAuthor.DoesNotExist:
- pass
- except PDCounterBook.DoesNotExist:
- pass
-
- tags_slugs = set(map(lambda t: t.slug, tags))
- tags = tags + filter(lambda t: t.slug not in tags_slugs, pd_tags)
-
- log.debug('search_tags: %s' % tags)
-
- return tags
-
- def hint_books(self, query, prefix=True):
- """
- Returns auto-complete hints for book titles
- Because we do not index 'pseudo' title-tags.
- Prefix search.
- """
- q = self.index.Q()
- query = query.strip()
- if prefix:
- q |= self.index.Q(title=query + "*")
- q |= self.index.Q(title_orig=query + "*")
- else:
- q |= self.make_term_query(query, field='title')
- q |= self.make_term_query(query, field='title_orig')
- qu = self.index.query(q)
- only_books = self.index.Q(is_book=True)
- return self.search_books(qu, [only_books])
-
- def search_books(self, query, filters=None, max_results=10):
- """
- Searches for Book objects using query
- """
- bks = []
- bks_found = set()
- query = query.query(is_book=True)
- res = self.apply_filters(query, filters).field_limit(['book_id'])
- for r in res:
- try:
- bid = r['book_id']
- if bid not in bks_found:
- bks.append(catalogue.models.Book.objects.get(id=bid))
- bks_found.add(bid)
- except catalogue.models.Book.DoesNotExist:
- pass
- return bks
-
@staticmethod
def apply_filters(query, filters):
"""
fnp / wolnelektury.git / blobdiff