Ticket #7769: uploaded_file.diff

django/core/files/uploadedfile.py

@@ -199 +199 @@
     # We can't directly subclass because NamedTemporaryFile is actually a
     # factory function
     def read(self, *args):          return self._file.read(*args)
-    def seek(self, offset):         return self._file.seek(offset)
+    def seek(self, *args):          return self._file.seek(*args)
     def write(self, s):             return self._file.write(s)
+    def tell(self, *args):          return self._file.tell(*args)
     def close(self):                return self._file.close()
     def __iter__(self):             return iter(self._file)
     def readlines(self, size=None): return self._file.readlines(size)
@@ -212 +213 @@
     """
     def __init__(self, file, field_name, name, content_type, size, charset):
         super(InMemoryUploadedFile, self).__init__(name, content_type, size, charset)
-        self.file = file
+        self._file = file
         self.field_name = field_name
-        self.file.seek(0)
+        self._file.seek(0)
 
-    def seek(self, *args, **kwargs):
-        self.file.seek(*args, **kwargs)
-
     def open(self):
-        self.seek(0)
+        self._file.seek(0)
 
-    def read(self, *args, **kwargs):
-        return self.file.read(*args, **kwargs)
-
     def chunks(self, chunk_size=None):
-        self.file.seek(0)
+        self._file.seek(0)
         yield self.read()
 
     def multiple_chunks(self, chunk_size=None):
         # Since it's in memory, we'll never have multiple chunks.
         return False
+    
+    # proxy methods to StringIO
+    def read(self, *args): return self._file.read(*args)
+    def seek(self, *args): return self._file.seek(*args)
+    def write(self, s):    return self._file.write(s)
+    def tell(self, *args): return self._file.tell(*args)
+    def close(self):       return self._file.close()
 
 class SimpleUploadedFile(InMemoryUploadedFile):
     """