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Upload a zip file with newforms

This is a minor modification to [Upload a file using newforms](http://www.djangosnippets.org/snippets/95/) as posted by [mboersma](http://www.djangosnippets.org/snippets/95/). I altered the ZipUploadForm by removing lines 33 - 34: if 'zip_file' in self.clean_data: zip_file = self.clean_data['zip_file'] and adding a return statement to clean_zipfile, which returns the validated zip file. I also added the line: zip_file.clean = clean_zipfile so that when the full_clean() in called on the form, clean_zipfile will automatically run. All other code (the view & template) remain the same. ** Disclaimer ** I'm not *that* familiar with newforms, so please forgive me if some the explanation as to why this works is incorrect ;) Who knows, maybe the first guy had it right.

  • newforms
  • files
  • zip-files
  • upload
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Install Django on TextDrive

This script automates the process of installing Lighttpd, Flup, Django and a Django app (with init script) on a TextDrive shared server. Usage instructions: http://textusers.com/wiki/Installing_Django # Changelog * April 5, 2007 * Added (www.\)? conditional in Lighty conf * Updated to Django 0.96

  • install-django
  • textdrive
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Akismet Webservice

A short little bit of code to test for comment spam against Akimet. Use: a = Akismet('<AkismetKey>', 'http://sneeu.com/blog/') a.verify_key() print a.comment_check( comment_author='...', comment_author_email='[email protected]', user_ip='10.0.0.1', comment_content="""Comment content!""" )

  • rest
  • python
  • akismet
  • spam
  • webservice
  • comment
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Cache Any Function

A decorator similar to `cache_page`, which will cache any function for any amount of time using the Django cache API. I use this to cache API calls to remote services like Flickr in my view, to prevent having to hit their servers on every request. I posted a sample function which uses the [delicious API](http://www.djangosnippets.org/snippets/110/) in the function, also. **Update**: It now also will put in a temporary 'in-process' variable (an instance of `MethodNotFinishedError`) in the cache while the function is processing. This will prevent the cache from calling the method again if it's still processing. This does not affect anything **unless you're using threads**.

  • cache
  • function
  • threading
  • threads
  • thread
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Cached Del.icio.us API Calls

This will save your del.icio.us bookmarks in your own database with a Bookmarks model. It depends on several things: 1. `DELICIOUS_USER` and `DELICIOUS_PASS` defined in settings.py 2. [pydelicious](http://code.google.com/p/pydelicious/) installed 3. Any view that uses del.icio.us should call the delicious() function, to update the database. 4. The [cache_function](http://www.djangosnippets.org/snippets/109/) decorator must be available. (I have it in a decorators.py file in my app; if you move it, you need to update the import) 5. The [django-tagging](http://code.google.com/p/django-tagging/) app, although it could be modified to not need this rather easily. Other than all those dependencies, it's actually rather simple. It will call del.icio.us for the 5 most recent posts, and create them if they're not already in the database. Otherwise, it'll check for updates, and change as appropriate. It won't return anything, as it updates the models themselves.

  • cache
  • delicious
  • pydelicious
  • api
  • bookmarks
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Unobtrusive comment moderation

**Before using this snippet**, please note that it's largely been superseded by [comment_utils](http://code.google.com/p/django-comment-utils/), which includes a more featureful and extensible version of this system, particularly with respect to additional moderation options and useful things like email notifications of comments. Once upon a time I hacked the copy of `django.contrib.comments` I'm using on my blog, so that I could have comments get set to `is_public=False` if posted more than 30 days after the entry's publication, and to add Akismet spam filtering. I've regretted it ever since, because it's made upgrading my copy of Django a pain. So here's an improved version which doesn't require hacking directly on Django. To use it, you'll need to do a few things: 1. Grab the [Python Akismet module](http://www.voidspace.org.uk/python/modules.shtml#akismet) and install it somewhere on your server. 2. In your settings file, add `AKISMET_API_KEY`, and make sure its value is a valid Akismet key. If you don't have an Akismet key, you can [get one at wordpress.com](http://wordpress.com/api-keys/). 3. Put this code -- both the function and the dispatcher calls -- somewhere in your project that's _guaranteed_ to be imported early (until this code is executed, the moderation function won't be set up to listen for comments posting). To have comments on a certain type of object (say, weblog entries) automatically go into moderation when the object reaches a certain age, define a method on that object's model called `comments_open`, and have it return `False` when comments should be auto-moderated.

  • akismet
  • comments
  • moderation
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Modelaware json serializer

A serializer that handles dicts with querysets and model instances, nice to use if you have a paginator context. paginate_by = 8 paginator = ObjectPaginator(queryset, paginate_by) page = request.GET.get('page', 1) try: page = int(page) object_list = paginator.get_page(page - 1) except (InvalidPage, ValueError): if page == 1 and allow_empty: object_list = [] else: raise Http404 result = { 'object_list' : object_list, 'is_paginated': paginator.pages > 1, 'results_per_page': paginate_by, 'has_next': paginator.has_next_page(page - 1), 'has_previous': paginator.has_previous_page(page - 1), 'page': page, 'next': page + 1, 'previous': page - 1, 'pages': paginator.pages, 'hits' : paginator.hits, } serialize(result, ensure_ascii=False)

  • json
  • serialization
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Days Since Filter

Very simple filter that returns one of the following by default: 1. \# days ago 2. yesterday 3. today 4. January 01, 2007 Example template code: This thread was started {{ post.date_created|dayssince }}. This thread was started today. E-mail sent: {{ email.date_sent|dayssince|capfirst }} E-mail sent: Yesterday Object created: {{ obj.date_created|dayssince|upper }} Object created: 12 DAYS AGO User's bogus birthday: {{ user.get_profile.bday|dayssince }} User's bogus birthday: April 20, 3030

  • filter
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Newforms customs validators

How to proceed to add a custom validator to a newforms field : you just need to create a new class derivated from forms.YourField with a custom clean method. Do not forget the line super(UserField, self).clean(value) ; in our case, it verifies the field attributes : min_length, max_length or required. More explications (in French) : [des validateurs personnalisés pour Django](http://www.aozeo.com/blog/67-django-newforms-validateurs-personnalises)

  • newforms
  • validators
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simple text image view

**Credit goes to** [Andrew Gwozdziewycz](http://www.23excuses.com/2006/Jun/30/simple-django-view-for-dynamic-text-replacement/) and [Jacob Kaplan-Moss](http://www.jacobian.org/writing/2006/jun/30/improved-text-image-view/) This is basically their code. Only differences: * orientation can be customized * size can be customized * GIF-Image with transparency is created Note: Because of the minimum palette that's used, the font isn't antialiased/smoothened. My url for this view looks like so: (r'^img/(?P<fontalias>\w+)/(?P<orientation>(normal|left|right))/$', 'view.text_to_image')

  • text
  • image
  • text-image-view
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Django Using Stored Procedure

Here is an clean example of using stored procedure using django. It sounds pretty weird "stored procedures in django" but for legacy database system we still need a clean approach to implement stored procedures using django. In this example, I've implemented logic inside models.py by creating a dummy class, i.e a django table (which is comparable to package in your database) and inside this package/class i added stored procedure wrappers. I tested it with boulder-oracle-sprint branch, there is minor issues with LazyDate in db/backend/oracle/base.py but it still working after minor edits in base.py. It worked absolutely fine with MySQL and MSSQL. View is pretty straight forward. Dont forget to create form.html as template and in body just put {{ form }}

  • django
  • stored
  • procedures
  • oracle
  • mysql
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BritishDateField

The date field in the newforms module includes American style mm/dd/yyyy , which anyone outside the US will recognise as being complete madness. This date field behaves sensibly.

  • newforms
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Strip html comments middleware

Middleware for stripping all html comments from the response content before returning it to the client. This will also strip inline javascript with htmlcomments put around it!

  • middleware
  • comments
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IfValueTag

Don't repeat yourself: when you wish to have a block of html with a variable value, but only if the variable is set, you can do this: {% ifvalue company.contact.email as email %} <h3>Email address</h3> <a href='mailto:{{ email }}'>{{ email }}</a> {% endifvalue %} Instead of this: {% if company.contact.email %} <h3>Email address</h3> <a href='mailto:{{ company.contact.email }}'>{{ company.contact.email }}</a> {% endifvalue %} The tags ifvalue and ifnotvalue are provided by this snippet. If you don't specify `as somename`, then the variable's value will be assigned to the name "value".

  • tag
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