Template tags/filter for working with query strings

Some template tags/filter for working with query strings in templates. Examples: {% load qstring %} {% qstring %} # Prints current request's query string {% qstring as current_qstring %} # Same but goes to context {{ current_qstring|qstring_del:"key1" }} # Deletes all key1 values {{ current_qstring|qstring_del:"key1&key2" }} # Deletes all key1 and key2values {{ current_qstring|qstring_set:"key1=1&key2=2" }} # Deletes all old key1 and key2 values and adds the new values.

• templatetag
• string
• query

Mon 24 Sep 2012 Read More

Client-side Django-style date & time string formatting

This is a reasonably straight forward port of functionality provided by the `django.utils.dateformat` module into a method extending JavaScript's Date object. Its intended use is to allow client-side dynamic content to share the same date & time string formatting as Django template markup. By using this in conjunction with a context processor (to pass a format string to all templates) you can switch formats for both server-generated & client-generated dates across a complete site with a single setting. The function supports *almost* the entire format -- as listed by the Django documentation for the [now template tag](http://www.djangoproject.com/documentation/templates/#now) -- with the exception of "I" & "T". As a 'dumb' illustration, the following template tag usage: It is {% now "jS F Y H:i" %} ...could equate to the following: It is <script type="text/javascript">var now = new Date(); document.write(now.strfdate('jS F Y H:i'));</script> It's not extensively tested (I only wrote it over the weekend), but seems to be working okay. Feel free to leave any corrections or suggestions in the comments, and I'll try to keep this entry updated if I make any fixes or changes.

• javascript
• dynamic
• datetime
• date
• format
• time
• string
• now

Sun 11 Jul 2010 Read More

Converts an integer or floating-point number or a string to a string containing the delimiter character (default comma) after every delimeter_count digits (by default 3 digits)

Converts an integer or floating-point number or a string to a string containing the delimiter character (default comma) after every delimeter_count digits (by default 3 digits)

• format
• string
• humanize
• integer
• comma
• space
• decimal
• number
• thousands
• float
• human

Thu 15 Mar 2012 Read More

format_thousands

Template filter to format a number so that it's thousands are separated by commas. {{ number|format_thousands }}

• format
• string
• comma
• decimal
• number
• thousands
• float

Sat 15 Jun 2013 Read More

Sessions and authentication without cookies

[The Session documentation](http://www.djangoproject.com/documentation/sessions/) rightly warns of the dangers of putting a session ID into a query string. Sometimes, however, you have to do it - perhaps your client has mandated support for browsers with cookies disabled, or perhaps (as in my case) you're just dealing with a slightly broken client browser. This middleware pulls a session ID out of the query string an inserts it into the cookies collection. You'll need to include it in your MIDDLEWARE_CLASSES tuple in settings.py, *before* the SessionMiddleware. *Please* read my [full blog post](http://www.stereoplex.com/two-voices/cookieless-django-sessions-and-authentication-without-cookies) about for the dangers of doing this, and for full instructions and examples.

• middleware
• cookie
• session
• authentication
• string
• query
• cookieless
• querystring

Sun 11 Jul 2010 Read More

Custom template filter remove words at end of a string

Filter to remove words at the end of a string Example: Myvar: "My name is Arthur and django si awesome" {{myvar|wordend:4}} Output: "My name is Arthur"

• string
• template filter
• remove words at end

Thu 01 Sep 2016 Read More

Custom template filter remove words at beginning of a string

Filter to remove words at the beginning of a string Example: Myvar: "My name is Arthur and django si awesome" {{myvar|wordremoveb:5}} Output: "django is awesome"

• string
• template filter
• remove words

Thu 01 Sep 2016 Read More

Filter that adds a period at the end of a string

Yeah, I know this is a very basic filter, but I thought I might as well share it with the world...

• text
• string
• stringformat
• string-formatting

Tue 15 Jan 2013 Read More

Trim the center of a string

I had to build unique strings for a payment system and i wanted to make them kindof friendly so i generated them with usernames and datetimes(safe enough uniqueness in combo), some usernames are long and they break the limit of this payment system so i thought i should cut the center of the string so it stills has a part of the username and a part of the datetime, the most changing part of the datetime is of course the last part, as microseconds vary rapidly. So i wrote this little function to cut the center of a string i thought it cute so i leave it here. Pay attention to the comment so you can see what is going on.

• python
• string
• slice

Wed 05 Dec 2012 Read More

Convert String Uppercase and Lowercase

To convert string to lower case replace upper() for lower()

• string
• uppercase
• lowercase

Fri 15 Apr 2011 Read More

Truncate text to length up until the nearest space

This will truncate a long character based on the given length parameter. If the word is cut-off, it will return the string up until the next space. If there are no spaces in the next 5 characters, that should mean a very long word and we should truncate right away.

• template
• string
• truncate

Sat 05 Mar 2011 Read More

Parse datetime model field to string

Checks the type of the field (date / time / date-time) and returns corresponding value as a string.

• datetime
• string
• parse

Sun 11 Jul 2010 Read More

truncatestring filter

Simple filter that truncates string to specific number of letters. Example usage in template: `{{ myvariable|truncatestring:20 }}` if myvariable is "That is my long string", the result will be: "That is my long s...". Put the code into templatetags/.

• filter
• string

Sun 11 Jul 2010 Read More

Slice filter

Handy for things such as: `{{ some_string|slice:","|join:";" }}`

• filter
• string
• slice
• simple

Sun 11 Jul 2010 Read More