use oai: identifiers

[wolnelektury.git] / apps / opds / views.py

diff --git a/apps/opds/views.py b/apps/opds/views.py
index e01c172..8fe0b8f 100644 (file)
--- a/apps/opds/views.py
+++ b/apps/opds/views.py
@@ -16,11 +16,14 @@ from django.contrib.sites.models import Site
 from basicauth import logged_in_or_basicauth, factory_decorator
 from catalogue.models import Book, Tag
 
-from search import Search, SearchResult, JVM
+from search.views import get_search, SearchResult, JVM
 from lucene import Term, QueryWrapperFilter, TermQuery
 
+import logging
 import re
 
+log = logging.getLogger('opds')
+
 from stats.utils import piwik_track
 
 _root_feeds = (
@@ -259,7 +262,7 @@ class ByTagFeed(AcquisitionFeed):
 
     def items(self, tag):
         books = Book.tagged.with_any([tag])
-        l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books])
+        l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books.iterator()])
         descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
         if descendants_keys:
             books = books.exclude(pk__in=descendants_keys)
@@ -345,22 +348,21 @@ class SearchFeed(AcquisitionFeed):
         JVM.attachCurrentThread()
 
         query = request.GET.get('q', '')
-
+        
         inline_criteria = re.findall(self.INLINE_QUERY_RE, query)
         if inline_criteria:
             def get_criteria(criteria, name, position):
                 e = filter(lambda el: el[0][0:len(name)] == name, criteria)
-                print e
+                log.info("get_criteria: %s" % e)
                 if not e:
                     return None
                 c = e[0][position]
-                print c
+                log.info("get_criteria: %s" % c)
                 if c[0] == '"' and c[-1] == '"':
                     c = c[1:-1]
                     c = c.replace('+', ' ')
                 return c
 
-            #import pdb; pdb.set_trace()
             author = get_criteria(inline_criteria, 'author', 1)
             title = get_criteria(inline_criteria, 'title', 2)
             translator = None
@@ -370,11 +372,15 @@ class SearchFeed(AcquisitionFeed):
             author = request.GET.get('author', '')
             title = request.GET.get('title', '')
             translator = request.GET.get('translator', '')
+
+            # Our client didn't handle the opds placeholders
+            if author == '{atom:author}': author = ''       
+            if title == '{atom:title}': title = ''
+            if translator == '{atom:contributor}': translator = ''
             categories = None
             fuzzy = False
 
-
-        srch = Search()
+        srch = get_search()
         hint = srch.hint()
 
         # Scenario 1: full search terms provided.
@@ -383,11 +389,12 @@ class SearchFeed(AcquisitionFeed):
             filters = []
 
             if author:
-                print "narrow to author %s" % author
-                hint.tags(srch.search_tags(author, filt=srch.term_filter(Term('tag_category', 'author'))))
+                log.info( "narrow to author %s" % author)
+                hint.tags(srch.search_tags(srch.make_phrase(srch.get_tokens(author, field='authors'), field='authors'), 
+                                            filt=srch.term_filter(Term('tag_category', 'author'))))
 
             if translator:
-                print "filter by translator %s" % translator
+                log.info( "filter by translator %s" % translator)
                 filters.append(QueryWrapperFilter(
                     srch.make_phrase(srch.get_tokens(translator, field='translators'),
                                      field='translators')))
@@ -399,18 +406,25 @@ class SearchFeed(AcquisitionFeed):
 
             flt = srch.chain_filters(filters)
             if title:
-                print "hint by book title %s" % title
+                log.info( "hint by book title %s" % title)
                 q = srch.make_phrase(srch.get_tokens(title, field='title'), field='title')
                 hint.books(*srch.search_books(q, filt=flt))
 
             toks = srch.get_tokens(query)
-            print "tokens: %s" % toks
-            #            import pdb; pdb.set_trace()
+            log.info("tokens for query: %s" % toks)
+            
             results = SearchResult.aggregate(srch.search_perfect_book(toks, fuzzy=fuzzy, hint=hint),
                 srch.search_perfect_parts(toks, fuzzy=fuzzy, hint=hint),
                 srch.search_everywhere(toks, fuzzy=fuzzy, hint=hint))
             results.sort(reverse=True)
-            return [r.book for r in results]
+            books = []
+            for r in results:
+                try:
+                    books.append(r.book)
+                except Book.DoesNotExist:
+                    pass
+            log.info("books: %s" % books)
+            return books
         else:
             # Scenario 2: since we no longer have to figure out what the query term means to the user,
             # we can just use filters and not the Hint class.