Fix dictionary import with Django 1.7

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

weblate/trans/formats.py

@@ -40,6 +40,7 @@ import hashlib
 import traceback
 import importlib
 import __builtin__
+from StringIO import StringIO
 
 
 FILE_FORMATS = {}
@@ -47,6 +48,16 @@ FLAGS_RE = re.compile(r'\b[-\w]+\b')
 LOCATIONS_RE = re.compile(r'^([+-]|.*, [+-]|.*:[+-])')
 
 
+class StringIOMode(StringIO):
+    """
+    StringIO with mode attribute to make ttkit happy.
+    """
+    def __init__(self, filename, data):
+        StringIO.__init__(self, data)
+        self.mode = 'r'
+        self.name = filename
+
+
 def register_fileformat(fileformat):
     '''
     Registers fileformat in dictionary.

weblate/trans/models/dictionary.py

@@ -20,7 +20,7 @@
 
 from django.db import models
 from weblate.lang.models import Language
-from weblate.trans.formats import AutoFormat
+from weblate.trans.formats import AutoFormat, StringIOMode
 from weblate.trans.models.project import Project
 from translate.storage.csvl10n import csvfile
 from django.core.urlresolvers import reverse
@@ -31,8 +31,10 @@ class DictionaryManager(models.Manager):
         '''
         Handles dictionary update.
         '''
+        filecopy = fileobj.read()
+        fileobj.close()
         # Load file using translate-toolkit
-        store = AutoFormat.load(fileobj)
+        store = AutoFormat.load(StringIOMode(fileobj.name, filecopy))
 
         ret, skipped = self.import_store(
             request, project, language, store, method
@@ -40,8 +42,10 @@ class DictionaryManager(models.Manager):
 
         if ret == 0 and skipped > 0 and isinstance(store, csvfile):
             # Retry with different CSV scheme
-            fileobj.seek(0)
-            store = csvfile(fileobj, ('source', 'target'))
+            store = csvfile(
+                StringIOMode(fileobj.name, filecopy),
+                ('source', 'target')
+            )
             ret, skipped = self.import_store(
                 request, project, language, store, method
             )

weblate/trans/tests/test_dictionary.py

@@ -105,6 +105,8 @@ class DictionaryTest(ViewTestCase):
         # Check correct response
         self.assertRedirects(response, self.get_url('show_dictionary'))
 
+        response = self.client.get(self.get_url('show_dictionary'))
+
         # Check number of imported objects
         self.assertEqual(Dictionary.objects.count(), 164)