# HG changeset patch
# User Mads Kiilerich <mads@kiilerich.com>
# Date 2019-11-20 12:55:14
# Node ID 552f6738ace24fb56ffcf70cf460581a958049e8
# Parent  e2b9731cb2fb1e692709ef93ccbc6d26cd38f04c

search: avoid crash when making (odd) search for '*'

Crashed in whoosh ListMatcher.supports() on
    def supports(self, astype):
        return self._format.supports(astype)
with
    AttributeError: 'NoneType' object has no attribute 'supports'
on for example http://localhost:5000/_admin/search?q=*&type=content .

There doesn't seem to be a good way to detect if _format has been provided.

diff --git a/kallithea/lib/indexers/__init__.py b/kallithea/lib/indexers/__init__.py
--- a/kallithea/lib/indexers/__init__.py
+++ b/kallithea/lib/indexers/__init__.py
@@ -212,7 +212,11 @@ class WhooshResultWrapper(object):
         close occurrences twice.
         """
         memory = [(0, 0)]
-        if self.matcher.supports('positions'):
+        try:
+            supports_positions = self.matcher.supports('positions')
+        except AttributeError:  # 'NoneType' object has no attribute 'supports' (because matcher never get a format)
+            supports_positions = False
+        if supports_positions:
             for span in self.matcher.spans():
                 start = span.startchar or 0
                 end = span.endchar or 0