Much stolen from base `truncate_html_words`. The difference is that this filter takes a number of characters as its argument and truncates to the nearest word boundary less than that count, rather than specifying a number of words.
Personally I hate using markdown for text input just so it can be converted into HTML. Markdown languages almost always don't support some thing I want to do; thus, why not just use HTML in the first place. Well because you don't want anybody posting any kind of HTML on your site. Solution, instead of making your users learn markdown, let them enter HTML and filter out bad tags. This is a filter I use to filter HTML for only certain allowed tags. The allowed tags can be configured with the **allowedhtml** list. To make your text input even more user friendly use a Javascript HTML editor like [FCK Editor](http://www.fckeditor.net/) so your users will have a nice GUI editor.
This patch adds a new admin Filter, for Filtering nullable fields. It adds 3 possible choices: 'All' (no filter), 'Null' (it applies field__isnull=True filter), and 'With Value' (it filters null values). This patch is interesting when you have a Integer or String fields and you want to filter wether a value is set or not. In other case, it would show too many filtering options. Remember this is a patch and you must modify a django file in `django/contrib/admin/filterspecs.py`
Filter for a list if breadcrumbs. All necessary code included but obviously only the breadcrumbs method that is needed with necessary changes for esc(). I use it as {% load breadcrumbs %} {{ request.path|breadcrumbs:"" }} enclosed in an unordered html list with id="breadcrumbs"
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/.
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.
First version Apr 9 09
usage: {{ object.content|wordbreak:"10" }} This means if any word is 10 characters or longer, a `­` 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.
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.
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>
This template filter is meant to insert soft hyphens ([­ 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" }}
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.
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
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.
Truncates string to a given number of characters.