This tag is inspired by how ng-class works in AngularJS. https://docs.angularjs.org/api/ng/directive/ngClass **example:** `context = { 'context_var': True, 'context_var_2': 'a' }` `{% classes "class_name_1": context_var == True, "class_name_2": context_var_2 == "a", "class_name_3": False %}` output: **class_name_1 class_name_2**
Wanted a simple function to concatenate n dictionaries. Each dictionary passed in is deep copied to avoid any possible mutation of dictionaries being concatenated. Dictionary m's key/values will be overwritten by dictionary m+1's key/values.
Will help you retrieve the value from a dictionary with a supplied key, or the human-readable value from a choices tuple. Works as follows: To retrieve the value of a dict: `{{ crime_rates_dict|getval:"Chicago" }}` <-- will return value of `crime_rates_dict["Chicago"]` To retrieve the human-readable value from a choices tuple: `{{ country.COUNTRIES|getval:"US" }}` <-- will return "United States" in `COUNTRIES = (("US", "United States"),)`
Convert dict to ul
This is a model that implements (most of) the python dictionary interface. Meaning, you can work with this model exactly like a python dictionary, and it handles querying the database for it's values, saving/deleting the helper objects, etc. I wrote this originally when I needed to store an arbitrary dictionary in the database, and decided to work it up into a near-complete implementation of a dictionary. In order to make sure that the dictionary is the most optimized possible, I have a static method that can be used for retrieval. Feel free to ignore it if you don't care about optimizing database queries. Here's an example: Python 2.6.1 (r261:67515, Jun 24 2010, 21:47:49) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Type "help", "copyright", "credits" or "license" for more information. (InteractiveConsole) >>> from binder.models import Dictionary >>> d = Dictionary.getDict('Foobar') >>> print d {u'Foobar': u'omgbbq', u'HAHAHAH': u"who's afraid of a big, black, bat?"} >>> d['pot'] = 'The kettle is black.' >>> print d {u'Foobar': u'omgbbq', u'pot': u'The kettle is black.', u'HAHAHAH': u"who's afraid of a big, black, bat?"} >>> print d['pot'] The kettle is black. >>> for k, v in d.iteritems(): ... print k +":", v ... Foobar: omgbbq HAHAHAH: who's afraid of a big, black, bat? pot: The kettle is black. >>> print d.keys() [u'Foobar', u'HAHAHAH', u'pot'] >>> print d.values() [u'omgbbq', u"who's afraid of a big, black, bat?", u'The kettle is black.'] >>> There's several more functions that I've implemented; check the code to see. (An interesting note: DictField saves immediately upon making a change, which is good to keep in mind in case that functionality isn't expected.) Hope someone finds this useful. :) --Chris
serialize model object to dict with related objects
Based on http://www.djangosnippets.org/snippets/592/, a simplified recurse template tag that will explore dict and list objects. Useful and straightforward for JSON documents (for instance from couchdb :p). Actual usage example: {% recursedict mydictionary %} <ul> {% loop %} <li>{% if key %}<b>{{ key }}</b>: {% endif %}{% value %}</li> {% endloop %} </ul> {% endrecurse %} The main tag syntax is "recursedict var" where var is your dictionary name. The "key" property will contain the current key, or None if the current value comes from a list (in other words the list (a, b, c) is handled like a very hypothetical {None: a, None: b, None: c} dictionary.) {% value %} will output the current value, or recurse if the value is a list, tuple or dict.
Get the value associated with the key which may be represented by a varable
When you need to include a specific javascript file/code snippet in your page, it's always better to do it at the bottom of your page to avoid to block the rendering too soon. This tag provide you a nice way to include and launch only what is needed: Example in an included template that need to display google maps: {% dict js_file google_api %} <script src="http://www.google.com/jsapi?key={{ MAPS_API_KEY }}" type="text/javascript" charset="utf-8"></script> <script src="{{MEDIA_URL}}js/map.display.js" type="text/javascript">...</script> {% enddict %} {% dict js_code link_map %} $('.show-map').click(function() { ... }); $('.hide-map').click(function() { ... }); {% enddict %} Finaly you just have to add this to the very bottom of your base.html file: .... </body> {% for k,v in js_file.items %} {{v}} {% endfor %} <script type="text/javascript"> /* <![CDATA[ */ {% for k,v in js_code.items %} {{v}} {% endfor %} /* ]]> */ </script> </html>
Cute little dictionary-like object that stores keys as regexs and looks up items using regex matches. It actually came in handy for a project where keys were regexes on URLs.
10 snippets posted so far.