Render TextField in Admin
This render content instead of widget of TextField.
- Admin
- TextField
Snippet List
Custom FileField with content type and size validation
Usage described in this blog post: [Django: FileField with ContentType and File Size Validation](http://nemesisdesign.net/blog/coding/django-filefield-content-type-size-validation/) Snippet inspired by: [Validate by file content type and size](http://djangosnippets.org/snippets/1303/)
- forms
- validation
- upload
- filefield
- file
- content-type
- max_upload_size
IP Authorisation Decorator
Simple decorator definition to authorize particular IPs access to a view function.
- decorator
- auth
- IP
- authorisation
- ip-authorisation
Doing redirect without request
When you neeed to do redirect and request object is not available, you can do it with exception. Put exception handler somewhere request is available, for example to middleware or ModelAdmin. Raise exception, where request is not available.
- http
- request
- redirect
- reverse
- httpresponse
Export Django data to datestamped tarball -- choose individual models for handy packaging and archiving
Just like it says -- set it up and run. Use it for server migrations, for project handoffs, in cron jobs, you name it. I have never had problems exporting models to individual fixtures in this way, and only one bout of trouble re-importing them (and that was, like, an impossible-triangle of OneToOneField dependencies anyway, and they were going from a sqlite file to a postgres schema that totally had inappropriate nullable columns in it). I find that the json files named for what they contain is helpful when and if manage.py does freak out during an import, as the output from `loaddata` command is so opaque it's autistic, basically. A trivial refactoring effort could make it into a management command -- it already makes use of the builtin `dumpdata` command class internally. However I did not feel like overthinking it enough to set it up in a repository (doubtlessly padded with unrelated 'utilities' and explanatory .rst files) and then writing a blog post to sell it to you. That is why you are reading this code here, instead of on GitHub. Don't get me wrong, GitHub is awesome, and like a consummate host... but not the way I love me some quick and dirty snippet code, these days. Whatever, you say lazy, I say productively relaxed, potato/potahto. Erm. In any case please do enjoy this model fixture-exporter. Yes.
- django
- python
- json
- export
- data
- script
- command
- archive
- django1.1
- backup
- datestamp
- tar
- tarball
RSS feed with content:encoded elements
This creates an RSS feed that has "content:encoded" elements for each item in the feed. The "description" is best used for a brief summary of the entry, while the extra ["content:encoded"](http://purl.org/rss/1.0/modules/content#syntax2) element is designed for the entire contents of something. This is the code I'm using for a weblog app. The main features you'd need to copy to add "content:encoded" elements to your own feed are: * **ExtendedRSSFeed()** -- this is used to create a new kind of feed generator class that will know about these extra elements. * **feed_type = ExtendedRSSFeed** -- we tell the feed class which feed generator class to use. * **item_extra_kwargs()** -- we add the "content:encoded" element to each item. This populates the element by calling... * **item_content_encoded()** -- this prepares the actual content. The name doesn't have to be in this format, but it seemed sensible to follow convention. The body of my weblog Entries are split into two parts and here it makes sure we add both parts, both of which contain HTML (which the syndication classes will encode appropriately.
- feed
- rss
- content
- syndication
- feeds
A RegexpField that clean the regex match using the desired format
I wanted a way to allow flexible phone number validation while making sure the saved data was uniform. ex. With: RegexFormatField(r'^\(?(?P<area>\d{3})\)?[-\s.]?(?P<local>\d{3})[-\s.]?(?P<subscriber>\d{4})$', format='%(area)s %(local)s-%(subscriber)s') input: (444) 444-4444 444 444-4444 444-444-4444 444.444.4444 4444444444 output: 444 444-4444
- regex
- format
- field
Improved many-page pagination
This one was adapted from [Page numbers with ... like in Digg](http://djangosnippets.org/snippets/1441/). See that one for more reference. Digg-like page numbering using inclusion tag. Usage in template: `{% load pagination %} {% pagination yourpage %}` Inclusion template pagination.html: {% if page.has_previous %} <a href="?page={{ page.previous_page_number }}"><img src="{{ MEDIA_URL }}images/page/cyclenav_l.png" alt="Previous page" /></a> {% endif %} {% for pnum in begin %} <a href="?page={{ pnum }}"{% if page.number == pnum %} class="active"{% endif %}>{{ pnum }}</a> {% endfor %} {% if middle %} <strong>...</strong> {% for pnum in middle %} <a href="?page={{ pnum }}"{% if page.number == pnum %} class="active"{% endif %}>{{ pnum }}</a> {% endfor %} {% endif %} {% if end %} <strong>...</strong> {% for pnum in end %} <a href="?page={{ pnum }}"{% if page.number == pnum %} class="active"{% endif %}>{{ pnum }}</a> {% endfor %} {% endif %} {% if page.has_next %} <a href="?page={{ page.next_page_number }}"><img src="{{ MEDIA_URL }}images/page/cyclenav_l.png" alt="Previous page" /></a> {% endif %}` Produces: previous_img 1 2 ... 4 5 6 7 8 9 10 11 12 ... 17 18 next_img Or: 1 2 3 4 5 6 7 8 ... 17 18 next_img Or: previous_img 1 2 ... 10 11 12 13 14 15 16 17 18 next_img
- tag
- django
- templatetag
- pagination
- digg
- pages
Django authentication for django-piston
This authenticate together django.contrib.auth.models.User like django normal login does.
- authentication
- piston
Template tag to create a list from one or more variables and/or literals
This code is taken from a [Stack Overflow answer by Will Hardy](http://stackoverflow.com/questions/3715550/creating-a-list-on-the-fly-in-a-django-template/3715794#3715794). Usage: `{% collect var1 var2 'foo' 'bar' 5 as some_list %}`. Sometimes one wishes to create a list on the fly within a template. Perhaps a collection needs to be passed to a template filter, but the collection cannot be created in the view since the values of one or more of its items are set in the template. A contrived example: {% with 5 as max %}{% with posts|length as len %} {% for post in posts %} {% if forloop.counter <= max %} {% include 'excerpt.dhtml' %} {% endif %} {% endfor %} {% collect len max as limits %} <p>Displaying {{ limits|minimum }} of {{ len }} post{{ posts|pluralize }}.</p> {% endwith %}{% endwith %} The final line will state how many posts are displayed: something like "5 of 24" or "2 of 2". This particular problem can be solved in a number of other ways, some of which are more appropriate. Having a template tag that can create lists on the fly is potentially useful in quite a few situations, though. I don't know whether this need is common enough to warrant being in the core. If something like this is to be included one day, it'd be much nicer to overload the `with` tag than to introduce a new tag. `{% with var1 var2 var3 as some_list %}` reads well.
- template-tags
render_to_response decorator
I'll throw my implementation into the mix - shortcut for render_to_response as a decorator.
- render_to_response
- decorator
ForeignKey filterspec
Unfortunately, it is not possible currently to use foreign keys in list filter of the admin website. list_filter=['city__country'] doesn't work. This filter spec tries to workaround this problem. It is also possible to have 2 filters for a foreign-key field but it requires to add a dummy field to the model. Set the fk_filterspec dictionnary on this dummy field and add 'fk':'real-field' to the dict.
- foreignkey
- django-admin
- filterspec
Multiple cache backend
Sometimes you might find useful to cache a value in different backends. Just put this code in a file named "multicache.py" somewhere in your python path and set it in CACHE_BACKEND setting: CACHE_BACKEND = 'multicache://?fallback=1&backends=file:///var/tmp/django_cache,locmem://' Separate the backends settings with commas, the first one will be set as default. Setting fallback to 1 provides fallback to default backend.
Django code generator
django-app-generator takes as an input your project (ORM) and generates repetitive code. At this moment there is only one example a simple RESTservice, but goal is to build alternative implementation of admin panel that will be fully customizable. The project is in the beta stage, if you encounter any problems feel free to create an issue.
- Admin
- REST
- code-generator
ReportBug() (exception emails - ala django debug style)
ReportBug() allows you to send exception details to you, via email, but with far more detail than the default. It uses the base function for the traceback used by the Debug mode on Django. This is a first revision, so the emails have no decent styling, but it works, and shows scope on each stack. It will automatically generate a random serial number per error, so you can track them in your favourite bug tracker. It also has support for you to pass it a request variable, so the mail would also contain request/response context. Again, i'm gonna look into doing this manually in the future. Hope this helps! Mwah. Cal Leeming. cal [at] simplicitymedialtd.co.uk. Simplicity Media Ltd.
- debug
- exception
- report
- bug
- mail_admins
- reportbug
2955 snippets posted so far.