Following is a simple pagination function.
from whoosh import index
def _search(q):
wix = index.open_dir(settings.WHOOSH_INDEX_DIR)
term = Term("title", q) | Term("content", q)
page_id = 1
with wix.searcher() as s:
return s.search_page(term, page_id, pagelen=settings.ITEMS_PER_PAGE)
In [15]: p = _search("like")
In [16]: p.results[0].reader.is_closed
Out[16]: True
if I try to access an attribute of a Hit, i get ReaderClosed exception.
In [19]: p.results
Out[19]: <Top 10 Results for Or([Term('title', 'like'), Term('content', 'like')]) runtime=0.0214910507202>
[21]: p.results[0]["title"]
---------------------------------------------------------------------------
ReaderClosed Traceback (most recent call last)
/usr/local/lib/python2.7/dist-packages/Django-1.5.3-py2.7.egg/django/core/management/commands/shell.p yc in <module>()
----> 1 p.results[0]["title"]
/usr/local/lib/python2.7/dist-packages/whoosh/searching.pyc in __getitem__(self, fieldname)
1500
1501 def __getitem__(self, fieldname):
-> 1502 if fieldname in self.fields():
1503 return self._fields[fieldname]
1504
/usr/local/lib/python2.7/dist-packages/whoosh/searching.pyc in fields(self)
1388
1389 if self._fields is None:
-> 1390 self._fields = self.searcher.stored_fields(self.docnum)
1391 return self._fields
1392
/usr/local/lib/python2.7/dist-packages/whoosh/reading.pyc in stored_fields(self, docnum)
1197 def stored_fields(self, docnum):
1198 segmentnum, segmentdoc = self._segment_and_docnum(docnum)
-> 1199 return self.readers[segmentnum].stored_fields(segmentdoc)
1200
1201 # Per doc methods
/usr/local/lib/python2.7/dist-packages/whoosh/reading.pyc in stored_fields(self, docnum)
693 def stored_fields(self, docnum):
694 if self.is_closed:
--> 695 raise ReaderClosed
696 assert docnum >= 0
697 schema = self.schema
ReaderClosed:
How can i access hit's attributes?
Browsing through whoosh's documents http://whoosh.readthedocs.org/en/latest/quickstart.html#the-searcher-object I've understood the problem. Leaving it here in case anyone gets stuck with same issue.
Any file descriptor related to search is closed when "with" scope ended. Therefore it seems resultset should be copied into another data structure such as a list of dictionaries in the "with" block, to be used outside the block.