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Fixed #35529 -- Added support for positional arguments in querystring template tag.

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Co-authored-by: Natalia <124304+nessita@users.noreply.github.com>
This commit is contained in:
Giannis Terzopoulos
2025-03-19 12:21:41 +01:00
committed by nessita
parent 9608678704
commit a39c28706a
5 changed files with 168 additions and 26 deletions
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39
docs/ref/templates/builtins.txt
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@@ -964,8 +964,14 @@ output (as a string) inside a variable. This is useful if you want to use
Outputs a URL-encoded formatted query string based on the provided parameters.
This tag requires a :class:`~django.http.QueryDict` instance, which defaults to
:attr:`request.GET <django.http.HttpRequest.GET>` if none is provided.
This tag accepts positional arguments, which must be mappings (such as
:class:`~django.http.QueryDict` or :class:`dict`). If no positional arguments
are provided, :attr:`request.GET <django.http.HttpRequest.GET>` is used as the
default to construct the query string.
Positional arguments are processed sequentially, while keyword arguments are
treated as key-value pairs, applied last. Later arguments take precedence over
earlier ones, ensuring the most recent pairs are reflected in the final result.
The result always includes a leading ``"?"`` since this tag is mainly used for
links, and an empty result could prevent the page from reloading as expected.
@@ -1033,16 +1039,33 @@ Handling lists
If ``my_list`` is ``["red", "blue"]``, the output will be
``?color=red&color=blue``, preserving the list structure in the query string.
Custom QueryDict
~~~~~~~~~~~~~~~~
Customizing the base QueryDict
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You can pass custom ``QueryDict`` or ``dict`` instances as positional arguments
to replace ``request.GET``. When multiple arguments are provided, key-value
pairs from later arguments take precedence over earlier ones.
For example, if ``my_query_dict`` is ``<QueryDict: {'color': ['blue'], 'size':
['S']}>`` and ``my_dict`` is ``{'color': 'orange', 'fabric': 'silk', 'type':
'dress'}``, this outputs ``?color=orange&size=S&fabric=silk``.
.. code-block:: html+django
{% querystring my_query_dict %}
{% querystring my_query_dict my_dict size="S" type=None %}
You can provide a custom ``QueryDict`` to be used instead of ``request.GET``.
So if ``my_query_dict`` is ``<QueryDict: {'color': ['blue']}>``, this outputs
``?color=blue``. If ``my_query_dict`` is empty, the output will be ``?``.
If all keys are removed by setting them to ``None``, this outputs ``?``:
.. code-block:: html+django
{% querystring my_query_dict my_dict color=None size=None fabric=None type=None %}
Similarly, if all positional arguments are empty and keyword arguments do not
contribute any new params, the output will also be ``?``.
.. versionchanged:: 6.0
Support for multiple positional mapping arguments was added.
Dynamic usage
~~~~~~~~~~~~~