From c74852792132bf1befde3de3b89d68cedddaa120 Mon Sep 17 00:00:00 2001
From: j <0x006A@0x2620.org>
Date: Thu, 31 Jan 2013 07:54:39 +0000
Subject: [PATCH] create and update GNI indexes

---
 .../item/management/commands/sqlfindindex.py  | 34 +++++++++++++++++--
 .../item/management/commands/sync_itemsort.py | 14 ++++++--
 2 files changed, 43 insertions(+), 5 deletions(-)

diff --git a/pandora/item/management/commands/sqlfindindex.py b/pandora/item/management/commands/sqlfindindex.py
index 4b30c61d..c6d99af3 100644
--- a/pandora/item/management/commands/sqlfindindex.py
+++ b/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)
+
diff --git a/pandora/item/management/commands/sync_itemsort.py b/pandora/item/management/commands/sync_itemsort.py
index 16640286..03080210 100644
--- a/pandora/item/management/commands/sync_itemsort.py
+++ b/pandora/item/management/commands/sync_itemsort.py
@@ -4,6 +4,7 @@ from optparse import make_option
 
 from django.core.management.base import BaseCommand
 from django.db import connection, transaction
+from django.conf import settings
 from django.db.models import fields
 
 import monkey_patch.models
@@ -75,6 +76,10 @@ class Command(BaseCommand):
             if name not in model_fields:
                 sql = 'ALTER TABLE "%s" DROP COLUMN "%s"' % (table_name, name)
                 changes.append(sql)
+        if settings.DB_GIN_TRGM:
+            gin_indexes = ['%s_findvalue' % n for n in settings.CONFIG['clipLayers']]
+        else:
+            gin_indexes = []
         for f in clip.models.Clip._meta.fields:
             if not f.primary_key and not isinstance(f, fields.related.ForeignKey):
                 name = f.name
@@ -82,8 +87,13 @@ class Command(BaseCommand):
                 if name not in db_fields:
                     sql = 'ALTER TABLE "%s" ADD COLUMN "%s" %s' % (table_name, name, col_type)
                     changes.append(sql)
-                    sql = 'CREATE INDEX "%s_%s_idx" ON "%s" ("%s")' % (table_name, name,
-                                                                       table_name, name)
+                    if name in gin_indexes:
+                        sql = 'CREATE INDEX "%s_%s_idx" ON "%s" USING gin ("%s" gin_trgm_ops);' % (
+                            table_name, name, table_name, name
+                        )
+                    else:
+                        sql = 'CREATE INDEX "%s_%s_idx" ON "%s" ("%s")' % (table_name, name,
+                                                                           table_name, name)
                     changes.append(sql)
                     sql = 'ALTER TABLE "%s" ALTER COLUMN "%s" SET NOT NULL' % (table_name, name)
                     changes.append(sql)