Temporary search problem workaround.
[wolnelektury.git] / src / search / index.py
index d3377b1..bd31a2a 100644 (file)
@@ -1,29 +1,29 @@
-# -*- 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()
@@ -129,7 +129,7 @@ class Index(SolrIndex):
         """
         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
@@ -142,7 +142,8 @@ class Index(SolrIndex):
                     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
@@ -324,9 +325,9 @@ class Index(SolrIndex):
                 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)
@@ -478,7 +479,7 @@ class Index(SolrIndex):
                         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()
 
@@ -557,6 +558,7 @@ class Index(SolrIndex):
         self.index.add(doc)
 
 
+@total_ordering
 class SearchResult(object):
     def __init__(self, doc, how_found=None, query_terms=None):
         self.boost = 1.0
@@ -610,14 +612,14 @@ class SearchResult(object):
         result._book = book
         return result
 
-    def __unicode__(self):
+    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):
@@ -633,7 +635,10 @@ class SearchResult(object):
     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)
@@ -653,12 +658,12 @@ class SearchResult(object):
         # 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 = {}
@@ -691,7 +696,7 @@ class SearchResult(object):
             m.update(s[self.OTHER])
             sections[si] = m
 
-        hits = sections.values()
+        hits = list(sections.values())
 
         for f in frags:
             try:
@@ -705,19 +710,19 @@ class SearchResult(object):
             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,
@@ -745,13 +750,17 @@ class SearchResult(object):
                     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)
@@ -766,6 +775,7 @@ class SearchResult(object):
             return None
 
 
+@total_ordering
 class PictureResult(object):
     def __init__(self, doc, how_found=None, query_terms=None):
         self.boost = 1.0
@@ -791,11 +801,11 @@ class PictureResult(object):
 
             self._hits.append(hit)
 
-    def __unicode__(self):
+    def __str__(self):
         return u"<PR id=%d score=%f >" % (self.picture_id, self._score)
 
     def __repr__(self):
-        return unicode(self)
+        return str(self)
 
     @property
     def score(self):
@@ -829,7 +839,7 @@ class PictureResult(object):
             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(unicode.lower, tms)
+                    tms = map(str.lower, tms)
                     for qt in self.query_terms:
                         if qt in tms:
                             themes_hit.add(hit[self.OTHER]['themes'][i])
@@ -866,8 +876,11 @@ class PictureResult(object):
                     books[r.picture_id] = r
         return books.values()
 
-    def __cmp__(self, other):
-        return cmp(self.score, other.score)
+    def __lt__(self, other):
+        return self.score < other.score
+
+    def __eq__(self, other):
+        return self.score == other.score
 
 
 class Search(SolrIndex):
@@ -965,7 +978,7 @@ class Search(SolrIndex):
                         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)
@@ -975,8 +988,8 @@ class Search(SolrIndex):
         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