It took me some time to figure out how to set up logging in Django. What I want to do is to log to a pair of rotating files each 1MB in size. What I come up with is this code segment in the `settings.py` file.
Create a random integer with given length. - For a length of 3 it will be between 100 and 999. - For a length of 4 it will be between 1000 and 9999. Use it in a template like: {% random_number as my_id %} The id is {{ my_id }}
This decorator allows edit or delete for the owner of the record. Snippet applies for every model that has ForeignKey to User. Works for User model too. Works with other decorators as permission_required or similar. Decorator raise http 403 view if user is not owner. **Usage** @permission_required('blogs.change_entry') @owner_required(Entry) def manage_entry(request, object_id=None, object=None): Decorator populates object kwargs if object_id present, otherwise just returns original view function. @permission_required('blogs.delete_entry') @owner_required() def entry_delete(*args, **kwargs): kwargs["post_delete_redirect"] = reverse('manage_blogs') return delete_object(*args, **kwargs) In generic delete wrapper view returns original view function.
Decorator for views that need confirmation page. For example, delete object view. Decorated view renders confirmation page defined by template 'template_name'. If request.POST contains confirmation key, defined by 'key' parameter, then original view is executed. Context for confirmation page is created by function 'context_creator', which accepts same arguments as decorated view.
Here is a way to get a drop down list from a queryset, with a list of "featured" items appearing at the top (from another queryset). This can be used for long select boxes which have a subset of commonly used values. The empty label is used as a separator and values can appear in both the featured set and the full set (it's more usable if they are in both). For example a country drop down list with 5 featured countries might look like this: Andorra Australia Kazakhstan Singapore Turkey ------------ Afghanistan Albania Algeria American Samoa Andorra Angola (hundreds more) To use this, define your form field like this: country = FeaturedModelChoiceField(queryset=Country.objects.all(), featured_queryset=Country.objects.featured())
Sometimes it's nice to know if your visitors came from a search engine such as Google or Yahoo. I use this as a component in determining the popularity of blog articles for search keywords, so I know which articles to automatically feature or suggest. Maybe you'd like to use it to highlight the visitor's search terms on the page. This isn't actually middleware in the sense that it defines any of the middleware interfaces. It's intended to be the base for a middleware method that you write, depending on what you want to happen when you detect that the visitor came from a search engine. In the example `process_view` method, I detect when the request is going to use the `object_detail` view and log the search query for that object in the database.
My first snippet ;] It's a simple inclusion tag for filtering a list of objects by a first letter using [django-filter](http://github.com/alex/django-filter) after having this "installed" you can use it in your template like this: {% load my_tags %} <div class="letter_filter"> Filter by first letter: {% letters_filter "MyNiceModel" %} </div> for information how to use django-filter in your view go to [docs](http://github.com/alex/django-filter/blob/master/docs/usage.txt) you should probably cache this inclusion tag since it makes 45 queries to the db (.count() > 0) Enjoy and improve ;] PS. some parts of this code are in Polish
This exception middleware abstracts the functionality of the builtin exception handling mechanisms, but makes them extensible by inheritance. Just add it (or some subclass) to the top of your active middleware list. You can use this to [make your admin emails more informative](http://www.djangosnippets.org/snippets/631/) or [log errors to a file](http://www.djangosnippets.org/snippets/639/).
A *SimpleListFilter* derived class that can be used to filter by taggit tags in the admin. To use, simply add this class to the *list_filter* attribute of your ModelAdmin class. Ex.: class ItemAdmin(admin.ModelAdmin): list_display = ('name', 'unit', 'amount') list_filter = ('unit', TaggitListFilter) Based in [ModelAdmin.list_filter documentation](https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.list_filter).
This is a general JQuery Autocomplete Form Field for selecting any model instance in your forms. 1 Download jquery.1.2.6 and the jquery autocomplete plugin http://bassistance.de/jquery-plugins/jquery-plugin-autocomplete/, place theme somewhere in your media directory (in this case {{ MEDIA__URL}}/js/ 2 copy fields.py to anywhere in your python-path (in this case utils.fields) 3 create a view for the ajax request that receives a query and returns a key|value list, and register it in your urls.py 4 Just Use the fields in any form like in forms.py
Very simple python class for querying Google Geocoder. Accepts a human-readable address, parses JSON results and sets lat and lng. (Full JSON results are stored to `results` property of GoogleLatLng for access to other attributes.) This could easily be expanded to include the XML output option, etc. **Requires PycURL and simplejson.** Example: >>> location = "1600 Amphitheatre Parkway, Mountain View, CA 94043" >>> glatlng = GoogleLatLng() >>> glatlng.requestLatLngJSON(location) >>> print "Latitude: %s, Longitude: %s" % (glatlng.lat, glatlng.lng) Latitude: 37.422782, Longitude: -122.085099` ** Do not forget the usage limits, which include request rate throttling, otherwise, Google might ban you. ** ===
Since django insists on throwing a DoesNotExist rather than just returning a None from the far side of a null OneToOneField, I wrote this to have a sane way of getting those fields out without having to try/except all over in my code.
My Models has a FK to translations and also a many 2 many to categories which also them are translated With this code I concatenate the translation of the categories and allow the changelist to order them. works only on mysql but you can adapt to your DB SET SESSION is required by mysql.
Decorator to preserve view from logged users.
A relatively simple Photo model which generates its own thumbnail when saved. A default size is specified as `thumb_size` in the `save()` arguments. Other thumbnailing strategies don't save the thumbnail dimensions, and since the actual dimensions of the thumbnail created by PIL's `thumbnail` method are somewhat non-deterministic, it is difficult to create an `img` tag with proper height and width attributes. This approach makes that task simple. This approach works well if only one thumbnail size is required. It could easily be adapted to support two or three thumbnail sizes, but adding more sizes would quickly get unwieldy. This was adapted from http://biohackers.net/wiki/Django1.0/Thumbnail