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Fixed #394 -- Trailing-slash redirects now retain duplicate name-value query-string pairs, instead of the first of each pair. Added a QueryDict.urlencode() method to accomplish this. Updated the docs. Thanks for the good catch, mlambert

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@613 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Adrian Holovaty 2005-09-02 19:39:47 +00:00
parent 92918b5ed7
commit 5bdf1da730
3 changed files with 29 additions and 11 deletions
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30
docs/request_response.txt
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@ -115,16 +115,20 @@ Methods
Example: ``"/music/bands/the_beatles/?print=true"``
MultiValueDict objects
----------------------
QueryDict objects
-----------------
In an ``HttpRequest`` object, the ``GET`` and ``POST`` attributes are instances
of ``django.utils.datastructures.MultiValueDict``. ``MultiValueDict`` is a
dictionary-like class customized to deal with multiple values for the same key.
This is necessary because some HTML form elements, notably
``<select multiple>``, pass multiple values for the same key.
of ``django.utils.httpwrappers.QueryDict``. ``QueryDict`` is a dictionary-like
class customized to deal with multiple values for the same key. This is
necessary because some HTML form elements, notably ``<select multiple>``, pass
multiple values for the same key.
``MultiValueDict`` implements the following standard dictionary methods:
``QueryDict`` instances are immutable, unless you create a ``copy()`` of them.
That means you can't change attributes of ``request.POST`` and ``request.GET``
directly.
``QueryDict`` implements the following standard dictionary methods:
* ``__repr__()``
@ -141,7 +145,11 @@ This is necessary because some HTML form elements, notably
* ``has_key(key)``
* ``items()``
* ``items()`` -- Just like the standard dictionary ``items()`` method,
except this retains the order for values of duplicate keys, if any. For
example, if the original query string was ``"a=1&b=2&b=3"``, ``items()``
will return ``[("a", ["1"]), ("b", ["2", "3"])]``, where the order of
``["2", "3"]`` is guaranteed, but the order of ``a`` vs. ``b`` isn't.
* ``keys()``
@ -150,7 +158,8 @@ This is necessary because some HTML form elements, notably
In addition, it has the following methods:
* ``copy()`` -- Returns a copy of the object, using ``copy.deepcopy()``
from the Python standard library.
from the Python standard library. The copy will be mutable -- that is,
you can change its values.
* ``getlist(key)`` -- Returns the data with the requested key, as a Python
list. Returns an empty list if the key doesn't exist.
@ -161,6 +170,9 @@ In addition, it has the following methods:
* ``appendlist(key, item)`` -- Appends an item to the internal list
associated with key.
* ``urlencode()`` -- Returns a string of the data in query-string format.
Example: ``"a=2&b=3&b=5"``.
Examples
--------