Email Attachment
Django documentation is lacking in giving an example for sending an email with attachment. Hopefully this code helps those who are trying to send email with attachments
- attachment
- fileinput
Snippet List
Frequently used tags/filters for Jinja2
Some frequently used filters and global functions: **url** - same as django url tag **nbspize** - replace all spaces with nbsp **get_lang** - get current language code **timesince** - converted django timesince tag **timeuntil** - converted django timeuntil tag **truncate** - tag that truncates text call it with an str argument like '20c' or '5w', where the number provides the count and c stands for charachters and w stands for words
- tags
- jinja
- jinja2
Jinja2 Django integration
Integration of django and Jinja2. Just import render_to_response from this file and you are ready. This file automatically adds template search path from yout TEMPLATE_DIRS and from each installed application. You can also use several variables in your settings.py to add filters, tests and global functions to the default context. This can be done by using JINJA_GLOBALS, JINJA_FILTERS and JINJA_TEST e.g. `JINJA_FILTERS = ( 'myapp.filters.myfilter', 'myapp.filters.myfilter2', )`
- templates
- jinja
- jinja2
Timedelta Database Field
This subclass of django.models.Field stores a python datetime.timedelta object as an integer column in the database. It includes a TimedeltaFormField for editing it through djangos admin interface. Feedback welcome. 2011-04-20: TimedeltaField can now be (de)serialized. Tested with JSON. 2009-11-23: `_has_changed()` added. Before form.changed_data contained timedelta FormFields, even if nothing changed.
- datetime
- timedelta
- dbfield
Making prepopulate_from work with ForeignKeys and other sorts of choice fields
This is a fairly small bit template that, if placed in your_project_dir/templates/admin/prepopulated_fields_js.html will override the template that is normally pulled by the preopulated fields templatetag in the admin. The result is that you can successfully specify a ForeignKey or other field involving choices as a source for prepopulate_from in your admin.py. It works just as well when there are multiple fields of both the text and choice variety.
- javascript
- admin
- prepopulate
CheckedField
Here's a snippet to pair an arbitrary form Field type (the "target field") with a checkbox. If the checkbox is not selected, the cleaned_data value for the field will be None. If the checkbox is selected, it will return the target field's cleaned value.
- checkbox
- forms
- combining
Rendering a form by looping through its fields in a template
See also [this thread](http://groups.google.com/group/django-developers/browse_thread/thread/ead13c9424b279a2). I'm an idiot; this snippet has now been updated to show how you do this without re-inventing the wheel.
- newforms
- templates
- foms
DRY custom ModelAdmin.list_display methods with a decorator
If you add a lot of custom `ModelAdmin` methods to `list_display` like I do, you know it can require a lot of repetition. Notice how adding 'checkbox' to `list_display` requires typing the method name 4 times: class ExampleAdmin(admin.ModelAdmin): list_display = ['checkbox', '__str__'] def checkbox(self, object): return '<input type="checkbox" value="%s"/>' % object.pk checkbox.short_description = mark_safe('✓') checkbox.allow_tags = True Using this decorator, the name only needs to be typed once: class ExampleAdmin(admin.ModelAdmin): list_display = ['__str__'] @add(list_display, mark_safe('✓'), 0, allow_tags=True) def checkbox(self, object): return '<input type="checkbox" value="%s"/>' % object.pk
- admin
- modeladmin
- list_display
whitespaceoptimize block tag
This is a custom block tag and is used like this: {% load whitespaceoptimize %} {% whitespaceoptimize "css" %} /* CSS comment */ body { color: #CCCCCC; } {% endwhitespaceoptimize %} And when rendered you get this output: body{color:#CCC} To install it, download the snippet and call it `myapp/templatetags/whitespaceoptimize.py`. (Make sure you have a `__init__.py` in the `templatetags` directory) You need to download and install [slimmer](http://www.issuetrackerproduct.com/Download#slimmer) and put on your Python path. The block tag can be used for `javascript` and `html` as well as `css`. You can also let it guess the format; this would work for example: {% whitespaceoptimize %} <table> <tr> ... {% endwhitespaceoptimize %} ...but this would just replicate the functonality of the [built-in spaceless tag](http://docs.djangoproject.com/en/dev/ref/templates/builtins/#spaceless)
- tag
- block
- whitespace
- slimmer
multiblog - a simple example of row-level permissions in the admin
From my talk this morning at PyCon UK 2008: a very simple multiple user blog model with an admin interface configured to only allow people to edit or delete entries that they have created themselves, unless they are a super user.
- admin
- permissions
Orderable inlines using drag and drop with jQuery UI
An easy way of making inlines orderable using drag-and-drop, using [jQuery UI's](http://ui.jquery.com/) sortable() plugin. First, add an "order" field to the inline models which is an IntegerField, and set that model to use 'order' as its default order_by. Then hook in the JavaScript. This should make them drag-and-drop sortable using jQuery UI, and also hide the divs containing those order fields once the page has loaded. This technique is unobtrusive: if JavaScript is disabled, the order fields will be visible and the user will be able to manually set the order by entering numbers themselves.
- jquery
- inlines
- pyconuk2008
keeping Model and Field History (everywhere)
Usage: class MyModel(ModelWithHistory): class History: model = True # save model changes into admin's LogEntry table fields = ('f1', 'f2') # save these fields history to AttributeLogEntry table f1 = CharField(max_length=100) f2 = IntegerField() for threadlocals, see http://code.djangoproject.com/wiki/CookBookThreadlocalsAndUser Aware! Not thoroughly tested yet. May cause problems with loading fixtures.
- model
- history
Alphabetic filter for admin
This snippet is based on [#748](http://www.djangosnippets.org/snippets/748/). Adds filtering by first char (alphabetic style) of values in the admin filter sidebar. The example below results in this filter: By name that starts with All A B G M X urls.py example (only for register the filter): import <your project>.admin.filterspecs models.py example: from django.db import models class Person(models.Model): name = models.CharField(max_length=40) name.alphabetic_filter = True admin.py example: class Admin: list_filter = ['name']
- filter
- admin
- filterspec
FreeBSD rc.d FastCGI Script
This is a simple rc script, suitable for starting a FastCGI daemon on FreeBSD. Simply copy this into /usr/local/etc/rc.d , change all references to "signet" to the name of your app, mark it executable and modify /etc/rc.conf accordingly.
- fcgi
- freebsd
- fastcgi
- rc.d
- rc
Retrieve a list of countries from GeoNames
GeoNames provides a useful data file with information about every country in the world (DjangoPeople uses this). Here's an importer that grabs the file from the web and turns it in to a list of dictionaries.
- countries
- geonames
3110 snippets posted so far.