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Tag "filter"

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Quantize decimal template filter

Takes a float number (23.456) and uses the decimal.quantize to round it to a fixed exponent. This allows you to specify the exponent precision, along with the rounding method. And is perfect for monetary formatting taking into account precision.

  • filter
  • decimal
  • quantize
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ImageMagick commands from Django Templates

A template filter which wraps imagemagick's `convert` command. The filter acts upon a source image path, and returns the filtered image path. usage: {{ source_path|convert:"-resize 64x64\!" }} The filter parameter is the processing arguments for an ImageMagick 'convert' command. See e.g. http://www.imagemagick.org/Usage/resize/ Every image created is saved in a cache folder. This code does not handle removing obsolete cached images. If the filtered image path exists already, no image processing is carried out, and the path is returned.

  • filter
  • image
  • templatetag
  • imagemagick
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Split a string to a list and add to select options

The template filter is use for split a string such as "foo|foobar|bar" to select option widget. You can define the splitter of the string by yourself. **Usage:** Add the code into templatetags folder of a installed app, then add below code into your template file. ` {% load split_as_option %} <select name="widget_name"> {{ QuerySet.values|split_as_option:"|" }} </select> `

  • template
  • filter
  • split
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highlight pattern

Encloses all matches of a pattern between the opentag and closetag string. ` {% with "this is a large test" as a %} {{ a|highlightpattern:"a" }} {% endwith %} ` yields this is <b>a</b> l<b>a</b>rge test

  • filter
  • highlight
  • pattern
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Template filter for formatting negative numbers

I have a need to conditionally format a negative number, a hedgefund's daily price change, Excel style. i.e. show a negative number as a parenthesized number instead of a negative sign. Here is a filter that will do that and more, solving a more general case. See the doctest for examples.

  • template
  • filter
  • format
  • currency
  • math
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Soft hyphenation (&shy;) template filter using PyHyphen

This template filter is meant to insert soft hyphens ([&shy; entities](http://www.cs.tut.fi/~jkorpela/shy.html)) in text whever it can. For this is relies on a **recent** checkout of the [PyHyphen](http://code.google.com/p/pyhyphen/) interface to the hyphen-2.3 C library, which is also used by Mozilla and OpenOffice.org. It takes two optional parameters: the language to hyphenate in and the minimum word length to consider for hyphenation. If no language is given, the default language from the settings file is used. The second parameter defaults to 5 characters. Usage example: {% load hyphenation %} {{ object.text|hyphenate:"nl-nl,6" }}

  • template
  • filter
  • text
  • hyphenation
  • hyphen
  • soft
  • &shy;
  • pyhyphen
  • typografy
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twitterize filter

This filter links twitter user names prefixed with '@', hash tags, and URLs. Usage example: `{{var|twitterize}}` Note: Do not use this in conjunction with the urlize filter. Twitterize does this for you.

  • filter
  • twitter
  • hash-tags
  • @replies
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nofollow filter for external links

Based on [svetlyak](http://www.djangosnippets.org/users/svetlyak/)'s [nofollow filter](http://www.djangosnippets.org/snippets/312/). This one processes only external URL's. Links with internal URL's will be returned unmodified. There's one gotcha; I preferred to have false positives instead of false negatives. So, it will nofollow `href="some/relative/path/"` for example. If you must do relative paths do it like this: <a href="./some/relative/path">link text</a>

  • filter
  • nofollow
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HTML/JS template filter to show localized dates/times

While working on my website projects today I had the idea to use HTML/JS instead of a IP database to localize the dates and times shown on the websites. Here are the snippets to use the JS snippets as filters for Django running on Google App Engine. You can use those filters on datetime objects.

  • template
  • filter
  • django
  • datetime
  • date
  • time
  • appengine
  • local
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wordbreak filter

usage: {{ object.content|wordbreak:"10" }} This means if any word is 10 characters or longer, a `&shy;` will be placed every 10 characters. This is to break long words which may break the appearance of a page. The output of this is HTML safe as the content has been conditionally escaped.

  • filter
  • custom-filter
  • wordbreak
  • word-break
  • long-words
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Significant digits filter

Formats float values with specified number of significant digits (defaults to 3). Usage: `{{value|sigdig}} # with 3 significant digits by default` `{{value|sigdig:digits}}` Examples: `{{0.001432143|sigdig}}` renders as `0.00143` `{{874321.4327184|sigdig}}` renders as `874000` `{{874321.4327184|sigdig:5}}` renders as `874320` Useful for scientific or engineering presentation.

  • filter
  • filters
  • math
  • engineering
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Template range filter

Easy to use range filter. Just in case you have to use a "clean" for loop in the template. Inspired by [Template range tag](http://www.djangosnippets.org/snippets/779/) Copy the file to your templatetags and load them. [Django doc | Custom template tags and filters](http://docs.djangoproject.com/en/dev/howto/custom-template-tags/)

  • template
  • filter
  • range
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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
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Fuzzy Date Diff Template Filter

Pass in a date and you get a humanized fuzzy date diff; e.g. "2 weeks ago" or "in 5 months". The date you pass in can be in the past or future (or even the present, for that matter). The result is rounded, so a date 45 days ago will be "2 months ago", and a date 400 days from now will be "in 1 year". Usage: * `{{ my_date|date_diff }}` will give you a date_diff between `my_date` and `datetime.date.today()` * `{{ my_date|date_diff:another_date }}` will give you a date_diff between `my_date` and `another_date` Make sure to install this as a template tag and call `{% load date_diff %}` in your template; see the [custom template tag docs](http://docs.djangoproject.com/en/dev/howto/custom-template-tags/) if you don't know how to do that.

  • template
  • filter
  • date
  • humanize
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