Reference Built-in template tags and filters Built-in tag referencequerystring

Adds or modifies parameters in the query string. Each keyword argument will be added to the query string, replacing any existing value for that key. For instance, if the current query string is ?color=green, the output will be ?color=red&size=S.

5.1 5.2 6.0

Reference Built-in template tags and filters Built-in tag referencequerystring

Passing None as the value removes the parameter from the query string. For example, if the current query string is ?color=green&size=M, the output will be ?size=M.

5.1 5.2 6.0

Reference Built-in template tags and filters Built-in tag referencequerystring

If my_list is ["red", "blue"], the output will be ?color=red&color=blue, preserving the list structure in the query string.

5.1 5.2 6.0

Reference Built-in template tags and filters Built-in tag referencequerystring

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.

5.1 5.2

Topic guide Aggregation

As with the filter() clause, the order in which annotate() and values() clauses are applied to a query is significant. If the values() clause precedes the annotate(), the annotation will be computed using the grouping described by the values() clause.

dev

Reference Built-in template tags and filters Built-in tag referencequerystring

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.

6.0

Reference Built-in template tags and filters Built-in tag referencequerystring

A common example of using this tag is to preserve the current query string when displaying a page of results, while adding a link to the next and previous pages of results.

5.1 5.2 6.0

How-to How to use Django’s CSRF protection

If you activate CSRF_USE_SESSIONS or CSRF_COOKIE_HTTPONLY, you must include the CSRF token in your HTML and read the token from the DOM with JavaScript:

dev

Reference Built-in template tags and filters

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.

dev

Reference Built-in template tags and filters

A common example of using this tag is to preserve the current query string when displaying a page of results, while adding a link to the next and previous pages of results.

dev

How-to How to use Django’s CSRF protection Using CSRF protection with AJAX

If you activate CSRF_USE_SESSIONS or CSRF_COOKIE_HTTPONLY, you must include the CSRF token in your HTML and read the token from the DOM with JavaScript:

4.2 5.0 5.1 5.2 6.0

Release notes Django 5.1 release notes

Django 5.1 introduces the {% querystring %} template tag, simplifying the modification of query parameters in URLs, making it easier to generate links that maintain existing query parameters while adding or changing specific ones.

dev

Release notes Django 5.1 release notes What’s new in Django 5.1

Django 5.1 introduces the {% querystring %} template tag, simplifying the modification of query parameters in URLs, making it easier to generate links that maintain existing query parameters while adding or changing specific ones.

5.1 5.2 6.0

Release notes Django 5.1.7 release notes

Fixed a bug in Django 5.1 where the {% querystring %} template tag returned an empty string rather than "?" when all parameters had been removed from the query string (#36182).

dev

Release notes Django 5.1.7 release notes

Fixed a bug in Django 5.1 where the {% querystring %} template tag returned an empty string rather than "?" when all parameters had been removed from the query string (#36182).

5.1 5.2 6.0

Release notes Django 6.0 release notes

The new variable forloop.length is now available within a for loop. The querystring template tag now consistently prefixes the returned query string with a ?, ensuring reliable link generation behavior.

dev

Release notes Django 6.0 release notes What’s new in Django 6.0Minor features

The new variable forloop.length is now available within a for loop. The querystring template tag now consistently prefixes the returned query string with a ?, ensuring reliable link generation behavior.

6.0

Release notes Archive of security issues

Data leakage via querystring manipulation in admin. Full description

dev

Release notes Archive of security issues Issues under Django’s security process

Data leakage via querystring manipulation in admin. Full description

4.2 5.0 5.1 5.2 6.0

Release notes Django 1.1.3 release notes

The Django administrative interface, django.contrib.admin, supports filtering of displayed lists of objects by fields on the corresponding models, including across database-level relationships.

dev