Better check for existence

weblate/lang/models.py

@@ -173,7 +173,7 @@ class Language(models.Model):
         Checks whether there is a translation existing for this language.
         '''
         from weblate.trans.models import Translation
-        return Translation.objects.filter(language = self).count() > 0
+        return Translation.objects.filter(language = self).exists()
 
     def get_translated_percent(self):
         '''

weblate/trans/management/commands/cleanuptrans.py

@@ -23,9 +23,9 @@ class Command(BaseCommand):
                 for sug in Suggestion.objects.filter(language = lang, project = prj).iterator():
                     # Remove suggestions with same text as real translation
                     units = Unit.objects.filter(checksum = sug.checksum, translation__language = lang, translation__subproject__project = prj, target = sug.target)
-                    if units.count() > 0:
+                    if units.exists():
                         sug.delete()
                     # Remove duplicate suggestions
                     sugs = Suggestion.objects.filter(checksum = sug.checksum, language = lang, project = prj, target = sug.target).exclude(id = sug.id)
-                    if sugs.count() > 0:
+                    if sugs.exists():
                         sugs.delete()

weblate/trans/views.py

@@ -318,7 +318,7 @@ def auto_translation(request, project, subproject, lang):
 
         for unit in units.iterator():
             update = sources.filter(checksum = unit.checksum)
-            if update.count() > 0:
+            if update.exists():
                 # Get first entry
                 update = update[0]
                 # No save if translation is same