unicode: Added a more convenient way to set/change the encoding on a request

instance.


git-svn-id: http://code.djangoproject.com/svn/django/branches/unicode@5342 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/handlers/modpython.py

@@ -49,7 +49,7 @@ class ModPythonRequest(http.HttpRequest):
         if 'content-type' in self._req.headers_in and self._req.headers_in['content-type'].startswith('multipart'):
             self._post, self._files = http.parse_file_upload(self._req.headers_in, self.raw_post_data)
         else:
-            self._post, self._files = http.QueryDict(self.raw_post_data), datastructures.MultiValueDict()
+            self._post, self._files = http.QueryDict(self.raw_post_data, encoding=self._encoding), datastructures.MultiValueDict()
 
     def _get_request(self):
         if not hasattr(self, '_request'):
@@ -58,7 +58,7 @@ class ModPythonRequest(http.HttpRequest):
 
     def _get_get(self):
         if not hasattr(self, '_get'):
-            self._get = http.QueryDict(self._req.args)
+            self._get = http.QueryDict(self._req.args, encoding=self._encoding)
         return self._get
 
     def _set_get(self, get):

django/core/handlers/wsgi.py

@@ -113,9 +113,9 @@ class WSGIRequest(http.HttpRequest):
                 header_dict['Content-Type'] = self.environ.get('CONTENT_TYPE', '')
                 self._post, self._files = http.parse_file_upload(header_dict, self.raw_post_data)
             else:
-                self._post, self._files = http.QueryDict(self.raw_post_data), datastructures.MultiValueDict()
+                self._post, self._files = http.QueryDict(self.raw_post_data, encoding=self._encoding), datastructures.MultiValueDict()
         else:
-            self._post, self._files = http.QueryDict(''), datastructures.MultiValueDict()
+            self._post, self._files = http.QueryDict('', encoding=self._encoding), datastructures.MultiValueDict()
 
     def _get_request(self):
         if not hasattr(self, '_request'):
@@ -125,7 +125,7 @@ class WSGIRequest(http.HttpRequest):
     def _get_get(self):
         if not hasattr(self, '_get'):
             # The WSGI spec says 'QUERY_STRING' may be absent.
-            self._get = http.QueryDict(self.environ.get('QUERY_STRING', ''))
+            self._get = http.QueryDict(self.environ.get('QUERY_STRING', ''), encoding=self._encoding)
         return self._get
 
     def _set_get(self, get):

django/http/__init__.py

@@ -18,6 +18,10 @@ class Http404(Exception):
 
 class HttpRequest(object):
     "A basic HTTP request"
+
+    # The encoding used in GET/POST dicts. None means use default setting.
+    _encoding = None
+
     def __init__(self):
         self.GET, self.POST, self.COOKIES, self.META, self.FILES = {}, {}, {}, {}, {}
         self.path = ''
@@ -43,6 +47,21 @@ class HttpRequest(object):
     def is_secure(self):
         return os.environ.get("HTTPS") == "on"
 
+    def _set_encoding(self, val):
+        """
+        Sets the encoding used for GET/POST accesses.
+        """
+        self._encoding = val
+        if hasattr(self, '_get'):
+            self.GET.encoding = val
+        if hasattr(self, '_post'):
+            self.POST.encoding = val
+
+    def _get_encoding(self):
+        return self._encoding
+
+    encoding = property(_get_encoding, _set_encoding)
+
 def parse_file_upload(header_dict, post_data):
     "Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
     import email, email.Message

docs/unicode.txt

@@ -337,14 +337,17 @@ be returned exactly as they were submitted by the client.
 By default, the ``DEFAULT_CHARSET`` setting is used as the assumed encoding
 for form data. If you need to change this for a particular form, you can set
 the ``encoding`` attribute on the ``GET`` and ``POST`` data structures. For
-example::
+convenience, changing the ``encoding`` property on an ``HttpRequest`` instance
+does this for you. For example::
 
     def some_view(request):
         # We know that the data must be encoded as KOI8-R (for some reason).
-        request.GET.encoding = 'koi8-r'
-        request.POST.encoding = 'koi8-r'
+        request.encoding = 'koi8-r'
         ...
 
+You can even change the encoding after having accessed ``request.GET`` or
+``request.POST`` and all subsequent accesses will use the new encoding.
+
 It will typically be very rare that you would need to worry about changing the
 form encoding. However, if you are talking to a legacy system or a system
 beyond your control with particular ideas about encoding, you do have a way to