Track indexupdates by id

We can not use relation because of deleted units.
Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/management/commands/update_index.py

@@ -53,7 +53,7 @@ class Command(BaseCommand):
             for update in updates[:limit].iterator():
                 indexupdates.add(update.pk)
                 delete_search_unit(
-                    update.unit_id,
+                    update.unitid,
                     update.translation.language.code
                 )
 
@@ -71,10 +71,10 @@ class Command(BaseCommand):
             updates = IndexUpdate.objects.filter(to_delete=False)
             for update in updates[:limit].iterator():
                 indexupdates.add(update.pk)
-                unit_ids.add(update.unit_id)
+                unit_ids.add(update.unitid)
 
                 if update.source:
-                    source_unit_ids.add(update.unit_id)
+                    source_unit_ids.add(update.unitid)
 
         # Filter matching units
         units = Unit.objects.filter(

weblate/trans/migrations/0054_auto_20160202_1219.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.1 on 2016-02-02 12:19
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('trans', '0053_auto_20160202_1145'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='indexupdate',
+            name='unitid',
+            field=models.IntegerField(default=0, unique=True),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='check',
+            name='check',
+            field=models.CharField(choices=[('end_space', 'Trailing space'), (b'inconsistent', 'Inconsistent'), ('begin_newline', 'Starting newline'), ('max-length', 'Maximum length of translation'), ('zero-width-space', 'Zero-width space'), ('escaped_newline', 'Mismatched \\n'), ('same', 'Unchanged translation'), ('end_question', 'Trailing question'), (b'angularjs_format', 'AngularJS interpolation string'), (b'python_brace_format', 'Python brace format'), ('end_newline', 'Trailing newline'), (b'c_format', 'C format'), ('end_exclamation', 'Trailing exclamation'), ('end_ellipsis', 'Trailing ellipsis'), ('end_colon', 'Trailing colon'), (b'xml-tags', 'XML tags mismatch'), (b'python_format', 'Python format'), (b'plurals', 'Missing plurals'), (b'javascript_format', 'Javascript format'), ('begin_space', 'Starting spaces'), (b'bbcode', 'Mismatched BBcode'), (b'php_format', 'PHP format'), ('end_stop', 'Trailing stop')], max_length=20),
+        ),
+    ]

weblate/trans/models/search.py

@@ -25,6 +25,7 @@ from django.utils.encoding import force_text, python_2_unicode_compatible
 @python_2_unicode_compatible
 class IndexUpdate(models.Model):
     unit = models.OneToOneField('Unit')
+    unitid = models.IntegerField(unique=True)
     source = models.BooleanField(default=True)
     to_delete = models.BooleanField(default=False)
 

weblate/trans/search.py

@@ -195,14 +195,14 @@ def add_index_update(unit_id, source, to_delete):
     try:
         with transaction.atomic():
             IndexUpdate.objects.create(
-                unit_id=unit_id,
+                unitid=unit_id,
                 source=source,
                 to_delete=to_delete,
             )
     # pylint: disable=E0712
     except IntegrityError:
         try:
-            update = IndexUpdate.objects.get(unit_id=unit_id)
+            update = IndexUpdate.objects.get(unitid=unit_id)
             if to_delete or source:
                 if source:
                     update.source = True