create and update GNI indexes

pandora/item/management/commands/sqlfindindex.py

@@ -1,11 +1,14 @@
 # -*- coding: utf-8 -*-
 # vi:si:et:sw=4:sts=4:ts=4
+from optparse import make_option
 
 from django.core.management.base import BaseCommand
+from django.db import connection
 from django.conf import settings
 
 import monkey_patch.models
 from ... import models
+import time
 
 
 class Command(BaseCommand):
@@ -14,8 +17,33 @@ class Command(BaseCommand):
     """
     help = 'sql create statements for find tables to use trigram index'
     args = ''
+    option_list = BaseCommand.option_list + (
+        make_option('--debug', action='store_true', dest='debug',
+            default=False, help='print sql commans'),
+    )
 
     def handle(self, **options):
-        print 'CREATE INDEX item_itemfind_value_idx ON item_itemfind USING gin (value gin_trgm_ops);'
-        print ''
-        print 'CREATE INDEX clip_clip_findvalue_idx ON clip_clip USING gin (findvalue gin_trgm_ops);'
+        cursor = connection.cursor()
+        def create_table(index, table, key):
+            sql = 'CREATE INDEX "%s" ON "%s" USING gin ("%s" gin_trgm_ops)' % (index, table, key)
+            if options['debug']:
+                print sql
+            cursor.execute(sql)
+
+        if settings.DB_GIN_TRGM:
+            table_name = models.ItemFind._meta.db_table
+            indexes = connection.introspection.get_indexes(cursor, table_name)
+            name = 'value'
+            if name not in indexes:
+                create_table("%s_%s_idx"%(table_name, name), table_name, name)
+            table_name = models.Clip._meta.db_table
+            cursor = connection.cursor()
+            indexes = connection.introspection.get_indexes(cursor, table_name)
+            name = 'findvalue'
+            if name not in indexes:
+                create_table("%s_%s_idx"%(table_name, name), table_name, name)
+            for name in settings.CONFIG['clipLayers']:
+                name = '%s_findvalue' % name
+                if name  not in indexes:
+                    create_table("%s_%s_idx"%(table_name, name), table_name, name)
+