Prepare stub for actually loading po file

trans/managers.py

@@ -7,11 +7,10 @@ class TranslationManager(models.Manager):
         '''
         Parses translation meta info and creates/updates translation object.
         '''
-        print code
         lang = Language.objects.get(code = code)
         trans, created = self.get_or_create(
             language = lang,
             subproject = subproject,
             filename = path)
-        print trans
+        trans.update_from_blob(blob)
 

trans/models.py

@@ -161,6 +161,17 @@ class Translation(models.Model):
     def __unicode__(self):
         return '%s@%s' % (self.language.name, self.subproject.__unicode__())
 
+    def update_from_blob(self, blob):
+        '''
+        Updates translation data from blob.
+        '''
+        # Check if we're not already up to date
+        if self.revision == blob.hexsha:
+            return
+
+        oldunits = set(self.unit_set.all().values_list('id', flat = True))
+
+
 class Unit(models.Model):
     translation = models.ForeignKey(Translation)
     location = models.TextField()