Merge lp:~mhr3/libunity/fix-1231390 into lp:libunity

[Michal Hruby]

Allow metadata=None when creating SearchContext from python

Allow metadata=None when creating SearchContext from python.

[PS Jenkins bot (ps-jenkins)]

PASSED: Continuous integration, rev:295
http://jenkins.qa.ubuntu.com/job/libunity-ci/120/
Executed test runs:
    SUCCESS: http://jenkins.qa.ubuntu.com/job/libunity-saucy-amd64-ci/105
    SUCCESS: http://jenkins.qa.ubuntu.com/job/libunity-saucy-armhf-ci/105
    SUCCESS: http://jenkins.qa.ubuntu.com/job/libunity-saucy-i386-ci/105

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review: Approve (continuous-integration)

[Paweł Stołowski (stolowski)]

Makes sense. +1

review: Approve

=== modified file 'bindings/python/Unity.py'
--- bindings/python/Unity.py	2013-09-17 17:37:36 +0000
+++ bindings/python/Unity.py	2013-09-26 11:50:00 +0000
@@ -126,7 +126,7 @@
     @staticmethod
     def create(search_query, search_type, filter_state, metadata_dict, result_set, cancellable):
         context = Unity.SearchContext.create(search_query, search_type, filter_state, None, result_set, cancellable)
-        if len(metadata_dict) > 0:
+        if metadata_dict and len(metadata_dict) > 0:
             metadata_variant = dict_to_variant(metadata_dict)
             context.set_search_metadata(Unity.SearchMetadata.create_from_variant(metadata_variant))