sg101: custom_search/indexes.py annotate

Merge.

rev	line source
bgneal@469	1 """
bgneal@469	2 This module contains custom search indexes to tailor the Haystack search
bgneal@469	3 application to our needs.
bgneal@469	4
bgneal@469	5 """
bgneal@469	6 from queued_search.indexes import QueuedSearchIndex
bgneal@469	7
bgneal@469	8
bgneal@469	9 class CondQueuedSearchIndex(QueuedSearchIndex):
bgneal@469	10 """
bgneal@469	11 This customized version of QueuedSearchIndex conditionally enqueues items
bgneal@469	12 to be indexed by calling the can_index() method.
bgneal@469	13
bgneal@469	14 """
bgneal@469	15 def can_index(self, instance):
bgneal@469	16 """
bgneal@469	17 The default is to index all instances. Override this method to
bgneal@469	18 customize the behavior. This will be called on all update operations.
bgneal@469	19
bgneal@469	20 """
bgneal@469	21 return True
bgneal@469	22
bgneal@469	23 def enqueue(self, action, instance):
bgneal@469	24 """
bgneal@469	25 This method enqueues the instance only if the can_index() method
bgneal@469	26 returns True.
bgneal@469	27
bgneal@469	28 """
bgneal@469	29 if (action == 'update' and self.can_index(instance) or
bgneal@469	30 action == 'delete'):
bgneal@469	31 super(CondQueuedSearchIndex, self).enqueue(action, instance)

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