Store comment counts in the database

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/migrations/0012_translation_have_comment.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('trans', '0011_auto_20141114_1008'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='translation',
+            name='have_comment',
+            field=models.IntegerField(default=0, db_index=True),
+            preserve_default=True,
+        ),
+    ]

weblate/trans/migrations/0013_auto_20141124_1036.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+from django.db.models.aggregates import Sum
+
+from weblate.trans.boolean_sum import BooleanSum
+
+
+def fill_in_have_comment(apps, schema_editor):
+    Translation = apps.get_model('trans', 'Translation')
+
+    for translation in Translation.objects.all():
+        stats = translation.unit_set.aggregate(
+            Sum('num_words'),
+            BooleanSum('has_comment'),
+        )
+        if stats['num_words__sum'] is not None:
+            translation.have_comment = int(stats['has_comment__sum'])
+            translation.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('trans', '0012_translation_have_comment'),
+    ]
+
+    operations = [
+        migrations.RunPython(fill_in_have_comment),
+    ]

weblate/trans/models/translation.py

@@ -127,6 +127,7 @@ class Translation(models.Model, URLMixin, PercentMixin, LoggerMixin):
     total_words = models.IntegerField(default=0)
     failing_checks = models.IntegerField(default=0, db_index=True)
     have_suggestion = models.IntegerField(default=0, db_index=True)
+    have_comment = models.IntegerField(default=0, db_index=True)
 
     enabled = models.BooleanField(default=True, db_index=True)
 
@@ -642,6 +643,7 @@ class Translation(models.Model, URLMixin, PercentMixin, LoggerMixin):
             BooleanSum('translated'),
             BooleanSum('has_failing_check'),
             BooleanSum('has_suggestion'),
+            BooleanSum('has_comment'),
             Count('id'),
         )
 
@@ -653,6 +655,7 @@ class Translation(models.Model, URLMixin, PercentMixin, LoggerMixin):
             self.translated = 0
             self.failing_checks = 0
             self.have_suggestion = 0
+            self.have_comment = 0
         else:
             self.total_words = stats['num_words__sum']
             self.total = stats['id__count']
@@ -660,6 +663,7 @@ class Translation(models.Model, URLMixin, PercentMixin, LoggerMixin):
             self.translated = int(stats['translated__sum'])
             self.failing_checks = int(stats['has_failing_check__sum'])
             self.have_suggestion = int(stats['has_suggestion__sum'])
+            self.have_comment = int(stats['has_comment__sum'])
 
         # Count translated words
         self.translated_words = self.unit_set.filter(