template tag for producing tag clouds for a given model, using django-tagging application: http://code.google.com/p/django-tagging/ Sample: http://skam.webfactional.com/tags/ Usage: {% tags_cloud_for_model articles.Article as object_list %} {% tags_cloud_for_model articles.Article as object_list step 6 %}
This is a customized version of the default `for` template tag which takes an optional `{% else %}` clause that will be displayed if the given array is empty. from django.template import * >>> t1 = Template(""" {% load mytags %} {% for athlete in athlete_list %} {{ athlete }} {% else %} No athlete in list! {% endfor %} """) >>> c1 = Context( {'athlete_list': ['me', 'myself', 'I'] }) >>> t1.render(c1) u'me myself I ' >>> c2 = Context({}) >>> t1.render(c2) u'No athlete in list!' If you want to automatically override the builtin `for` template-tag add it to the builtins: from django.template import add_to_builtins add_to_builtins('python.path.to.mytags')
The {% url %} templatetag is awesome sometimes it is useful to get the full blown URL with the domain name - for instance for links in emails. The **{% absurl %}** templatetag mirrors the behaviour of {% url %} but inserts absolute URLs with the domain of the current Site object. Usage: {% absurl viewname %} >>> http://www.example.org/my/view/
In your settings file: TEMPLATE_TAGS = ( "djutils.templatetags.sqldebug", ) Make sure load_templatetags() gets called somewhere, for example in your apps __init__.py *Edit: Updated to work with templatetag libraries that use certain critical django-bits.*
Replaces <code> blocks with syntax highlighted code. Use CSS to actually get the colours you want, look at pygments documentation for extracting css for various styles. This snippet has the advantage of falling back on <pre> if anything goes wrong, and attempting to guess the syntax of code, falling back on python.
Truncates a string after a given length, keeping the last word complete. This filter is more precise than the default `truncatewords` filter. Words length vary too much, 10 words may result in 40 or 70 characters, so cutting by character count makes more sense. There is a [blog post](http://ricobl.wordpress.com/2008/12/23/templates-django-filtro-truncatewords-melhorado/) about this snippet (in Portuguese).
Use these tags and filter when you're rolling your own search results. This is intended to be a whole templatetags module. I keep it in my apps as `templatetags/search.py`. These should not be used to perform search queries, but rather render the results. ### Basics There are three functions, each has both a tag *and* a filter of the same name. These functions accept, at a minimum, a body of text and a list of search terms: * **searchexcerpt**: Truncate the text so that each search term is shown, surrounded by some number of words of context. * **highlight**: Wrap all found search terms in an HTML span that can be styled to highlight the terms. * **hits**: Count the occurrences of the search terms in the text. The filters provide the most basic functionality as described above, while the tags offer more options as arguments, such as case sensitivity, whole word search, and saving the results to a context variable. ### Settings Defaults for both the tags and filters can be changed with the following settings. Note that these settings are merely a convenience for the tags, which accept these as arguments, but are necessary for changing behavior of the filters. * `SEARCH_CONTEXT_WORDS`: Number of words to show on the left and right of each search term. Default: 10 * `SEARCH_IGNORE_CASE`: False for case sensitive, True otherwise. Default: True * `SEARCH_WORD_BOUNDARY`: Find whole words and not strings in the middle of words. Default: False * `SEARCH_HIGHLIGHT_CLASS`: The class to give the HTML span element when wrapping highlighted search terms. Default: "highlight" ### Examples Suppose you have a list `flatpages` resulting from a search query, and the search terms (split into a list) are in the context variable `terms`. This will show 5 words of context around each term and highlight matches in the title: {% for page in flatpages %} <h3>{{ page.title|highlight:terms }}</h3> <p> {% searchexcerpt terms 5 %} {{ page.content|striptags }} {% endsearchexcerpt %} </p> {% endfor %} Add highlighting to the excerpt, and use a custom span class (the two flags are for case insensitivity and respecting word boundaries): {% highlight 1 1 "match" %} {% searchexcerpt terms 5 1 1 %} {{ page.content|striptags }} {% endsearchexcerpt %} {% endhighlight %} Show the number of hits in the body: <h3>{{ page.title }} (Hits: {{ page.content|striptags|hits:terms }}) </h3> All tags support an `as name` suffix, in which case an object will be stored in the template context with the given name; output will be suppressed. This is more efficient when you want both the excerpt and the number of hits. The stored object depends on the tag: * **searchexcerpt**: A dictionary with keys "original" (the text searched), "excerpt" (the summarized text with search terms), and "hits" (the number of hits in the text). * **searchcontext**: A dictionary with keys "original", "highlighted", and "hits", with obvious values. * **hits**: Just the number of hits, nothing special. Getting both the hits and the excerpt with "as": {% searchexcerpt terms 3 as content %} {{ page.content|striptags }} {% endsearchexcerpt %} <p>Hits: {{ content.hits }}<br>{{ content.excerpt }}</p> ### More For more examples see [Brian Beck's Text Adventure][announcement]. [announcement]: http://blog.brianbeck.com/post/29707610
Simple tag to enable easy parsing of inline code within a template. Usage: {% stylize "language" %}...language text...{% endstylize %}. Make sure to set the language for Pygments to parse as the first argument to the tag. You will also need to include a copy of the CSS that Pygments uses. The [Pygments](http://pygments.org/) library is required for this tag.
This simple template tag can be used to add famfamfam's silk icons easily to any element in your template.
Add the decorator to an already defined templatetag that returns a Node object: @with_as def do_current_time(parser, token): ... return a_node The decorator will patch the node's render method when the "as" syntax is specified and will update the context with the new variable. The following syntaxes are available: {% current_time %} {% current_time as time %} {{ time }}
Example usage of the GChartWrapper.charts module for creating dynamic charts with templatetags. It is an easy method of creating dynamic GoogleCharts from the [GoogleChartAPI](http://code.google.com/apis/chart/). The project is located at [google-chartwrapper](http://code.google.com/p/google-chartwrapper/). To get the most recent version: `svn checkout http://google-chartwrapper.googlecode.com/svn/trunk/` and run `python setup.py` in the downloaded trunk directory. There is an included django project there with the [ChartsExamples](http://code.google.com/p/google-chartwrapper/wiki/ChartExamples) all worked out in django templates
Special thanks to all the authors of djangosnippets. It's my first contribution. Maybe the method **online_users** could be better, but for now it's working for me. Best Regards from Bolivia.
Custom template filter to generate a breadcrumb trail for a flatpage. Say you have a series of flatpages with URLs like /trunk/branch/leaf/ etc. This filter looks at the URL of a given flatpage, figures out which of the leftwards text chunks correspond to other flatpages, and generates a string of anchored HTML. Usage: {% load make_breadcrumb_trail %} {{ flatpage.url|crumbs:flatpage.title }}
Couldn't get the original to work, and wanted more functionality (scale on x or y coordinates) <img src="{{ object.image.url }}" alt="original image"> <img src="{{ object.image|thumbnail:"250w" }}" alt="image resized to 250w x (calculated/scaled)h "> <img src="{{ object.image|thumbnail:"250h" }}" alt="image resized to (calculated/scaled)w x 250h h "> <img src="{{ object.image|thumbnail:"250x200" }}" alt="image resized to 250wx200h "> <img src="{{ object.image|thumbnail }}" alt="image resized to default 200w (or whatever you default it to) format"> Original http://www.djangosnippets.org/snippets/192/ Adapted http://www.djangosnippets.org/snippets/955/ Sampled From: http://batiste.dosimple.ch/blog/2007-05-13-1/ http://vaig.be/2008/05/17/stdimagefield-improved-image-field-for-django/
template tag to format two dates as a date range