Renderer decorator
You can use this as a decorator for your views, this way you can return a simple dictionary and the decorator will do the rest. **@TODO:** Automatically set the template based on the app/view request
- shortcut
- render
Snippet List
Pattern to integer list function
This function can be util for transform pattern strings like these to list: >>> pattern_to_list('42-45') [42, 43, 44, 45] >>> pattern_to_list('15,49-52') [15, 49, 50, 51, 52] >>> pattern_to_list('0-13') [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13] You can use also the list to pattern function at [http://www.djangosnippets.org/snippets/496/](http://www.djangosnippets.org/snippets/496/)
- list
- integer
Integer list to pattern function
This function can be util for transform pattern lists like these to strings: >>> list_to_pattern([42, 43, 44, 45]) '42-45' >>> list_to_pattern([15, 49, 50, 51, 52]) '15,49-52' >>> list_to_pattern([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]) '0-13' You can use also the pattern to list function at [http://www.djangosnippets.org/snippets/495/](http://www.djangosnippets.org/snippets/495/)
- list
- integer
SeparatedValuesField
A Django newforms field which takes another newforms field during initialization and validates every item in a comma-separated list with this field class. Please use it like this: from django.newforms import EmailField emails = CommaSeparatedValuesField(EmailField) You would be able to enter a string like "[email protected],[email protected]" because every email address would be validated when clean() is executed. This of course also applies to any other Field class. You can define the sepator (default: ",") during initialization with the `separator` parameter like this: from django.newforms import EmailField` emails = SeparatedValuesField(EmailField, separator="###")
- newforms
- field
- comma
- separated
function_tag
register any python function as a tag with an optional name. usage: in templatetags: @function_tag() def foo(arg): return do_something(arg) in template: {% foo arg %} or {% foo arg as variable %}{{ variable.bar }}
- tag
- function
Cache Manager
I had a problem: too many fetches from the DB. So, how to reduce load on the database without major changes to the code? Cache Manager is the answer. I've managed to reduce number of DB hits as much as 80% in some cases (dictionaries, complex relations). It is using standard cache mechanisms. I'm using it with mathopd. This is a very simple solution, instead of standard Manager, put this in your model definition as: `objects = CacheManager()` Then everythere elase in the code instead of all() or get(...) call all_cached() or get_cached(). I've kept original methods intact, to have an dual access, when you really, really must have frest data from the DB, and you can't wait for cache to expire. This is much easier to work with, then manually getting fetched data from the cache.No change to your existing code 9except model) and voila! Additionally if you have some data, you would like to store with your serialized object (e.g. related data, dynamic dictionaries), you can do this in the model method '_init_instance_cache'). Drop me an email if you find this useful. :)
- cache
- model
- manager
blocksetter
Sometimes you need to set a little bit more complex variable in the template (e.g. Title), that is being used more than once. this simple tag defines "blockset" tag. {% blockset variable-name %}{%endblockset} everything inside body (between blockset/endblockset) is being assigned to the variable "variable-name". I have found this quite useful with translations, or setting the title, where you out several variables into one sentence. Drop me an email if you will find this useful.
- templatetag
- block
- set
NewForms Readonly / Edit Pattern
This is a little base class that I use to display forms in a readonly mode. Providing a simple javascript on the front end to allow a user to click an **edit** link that will show/hide the actual form. To use it simply inherit from it. Then in your templates do the following: `{{ form.as_readonly_table }}` **Other Notes** * **form.html** `{% for field in bound_fields %} {% include "newforms/field.html" %} {% endfor %}` * **field.html** `{% if field.errors %} <tr> <td> </td> <td>{{ field.errors }}</td> </tr> {% endif %} <tr> <th style="text-align:right"> <label for="id_{{ field.name }}">{{ field.label }}{% if field.field.required %}<span class="required"><sup>*</sup></span>{% endif %}</label> </th> <td>{{ field }} {% if field.help_text %} <p class="helptext">({{ field.help_text }})</p> {% endif %} </td> </tr>`
- template
- newforms
- readonly
- edit-mode
Mathematical Captcha
Simple mathematical captcha where human is asked to solve a simple mathematical calculation like 2+3=?. Don't require database access or external libraries like PIL. To use MathCaptchaForm subclass it and add your fields. For example of usage and discussion about security of this captcha comparing with traditional image captcha please see my blog entry [Improved Mathematical Captcha](http://www.mysoftparade.com/blog/improved-mathematical-captcha/)
- captcha
BirthYearField
A form field to prompt for a year of birth with suitable sanity checks. Usage eg: yob = BirthYearField(label="What year were you born?")
- form
- field
- year
- birth
OwnerField
This is a little helper for associating an owner to a newly created object, in this case making the assumption that the current user is always the owner. It removes the necessity of adding a custom save hook to your model. get_current_user comes from this middleware trick to cache the current user: http://code.djangoproject.com/wiki/CookBookThreadlocalsAndUser
- model
- user
- field
- owner
- ownerfield
Link filter
Almost too dumb to be worth posting but its saved me a lot of typing. Instead of: <div> <a href="{{ object.get_absolute_url }} class="object-icon">{{ object }}</a> </div> just put: <div>{{ object|link }}</div>
- filter
- links
Movable Type Import
This is a quick and dirty way to import blog entries and comments from Movable Type. Sorry I don't have time to document it better. Hopefully it will help you get started if you're looking to move from MT to Django.
- type
- import
- movable-type
- movable
- mt
Create nice looking PDFs from developer documentation
You need htmldoc, rst2html, the Python Imaging Libraray, BeautfiulSoup and spoon. The Debian/Ubuntu-packages are called htmldoc, python-docutils, python-imaging and python-beautifulsoup You can get spoon.py http://beautifulspoon.googlecode.com/svn/trunk/spoon.py To create the pdf files you have to call the script from django_src/docs Here is an example output: http://henning.cco-ev.de/django/essential.pdf
- documentation
- docs
Breadcrumbs for flatpages
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 }}
- filter
- templatetags
- breadcrumb
- flatpage