ganeti/search_indexes.py

   1 from haystack import site
   2 from haystack.indexes import *
   3 from ganeti.models import VirtualMachine, Cluster, Node
   4
   5 ''' Haystack search indexex.
   6
   7 This is where the search indexes are defined. They fill the Haystack search
   8 query set (the set of objects that are searchable.) There should be one index
   9 defined per GWM model.
  10
  11 Note that we're using the `SearchIndex` update-based search indexer. This means
  12 the search index will need to be updated periodically with
  13 `./manage.py update_index`
  14
  15 Previously, we were using `RealTimeSearchIndex` which updated the index anytime
  16 an associated GWM model changed in the database. Concerns about database
  17 performance, database locking issues, and dev server socket problems pushed us
  18 away from this indexer.
  19
  20 For more informaiton about the availible search indexers, see
  21 http://docs.haystacksearch.org/dev/searchindex_api.html#keeping-the-index-fresh
  22 '''
  23
  24 class VirtualMachineIndex(SearchIndex):
  25     ''' Search index for VirtualMachines '''
  26
  27     text = CharField(document=True, use_template=True)
  28
  29     # We can pull data strait out of the model via `model_attr`
  30     # (Commmenting out 'cause I'm not sure it's needed)
  31     # hostname = CharField(model_attr='hostname')
  32
  33     # Autocomplete search field on the `hostname` model field
  34     content_auto = EdgeNgramField(model_attr='hostname')
  35
  36     def get_queryset(self):
  37         return VirtualMachine.objects.all()
  38
  39 site.register(VirtualMachine, VirtualMachineIndex)
  40
  41 class ClusterIndex(SearchIndex):
  42     ''' Search index for Clusters '''
  43
  44     text = CharField(document=True, use_template=True)
  45
  46     # Autocomplete search field on `hostname` model field
  47     content_auto = EdgeNgramField(model_attr='hostname')
  48
  49     def get_queryset(self):
  50         return Cluster.objects.all()
  51
  52 site.register(Cluster, ClusterIndex)
  53
  54 class NodeIndex(RealTimeSearchIndex):
  55     ''' Search index for Nodes '''
  56
  57     text = CharField(document=True, use_template=True)
  58
  59     # Autocomplete search field on `hostname` model field
  60     content_auto = EdgeNgramField(model_attr='hostname')
  61
  62     def get_queryset(self):
  63         return Node.objects.all()
  64
  65 site.register(Node, NodeIndex)