A simple view used to manage the page cache stored in the database (here Postgresql in the django_cache table, you also have to set correctly CACHE_TABLE_OID, by the OID of the cache table (you can get it in PgAdmin)
This is exacly the same snippet as #197 http://www.djangosnippets.org/snippets/197/ but returning search enigne, search engine domain and search term in: request.search_referrer_engine request.search_referrer_domain request.search_referrer_term I wanted to show ads only to people comming from search engines so I took snippet #197 and modify it to put that info in the request object.
This template tag takes the current GET query, and modifies or adds the value you specify. This is great for GET-query-driven views, where you want to provide URLs which reconfigure the view somehow. **Example Usage:** `{% get_string "sort_by" "date" %}` returns `all=your¤t=get&variables=plus&sort_by=date`
Allows to create bigint (mysql), bigserial (psql), or NUMBER(19) (oracle) fields which have auto-increment set by using the AutoField of django, therefore ensuring that the ID gets updated in the instance when calling its 'save()' method. If you would only subclass IntegerField to BigIntegerField and use that as your primary key, your model instance you create would not get the id attribute set when calling 'save()', buy instead you would have to query and load the instance from the DB again to get the ID.
Simply returns a created gravatar url based on input. Creates the url utilizing the full gravatar url inputs as defined at http://en.gravatar.com/site/implement/url.
Personally I hate using markdown for text input just so it can be converted into HTML. Markdown languages almost always don't support some thing I want to do; thus, why not just use HTML in the first place. Well because you don't want anybody posting any kind of HTML on your site. Solution, instead of making your users learn markdown, let them enter HTML and filter out bad tags. This is a filter I use to filter HTML for only certain allowed tags. The allowed tags can be configured with the **allowedhtml** list. To make your text input even more user friendly use a Javascript HTML editor like [FCK Editor](http://www.fckeditor.net/) so your users will have a nice GUI editor.
My modified version of the [MultiQuerySet by mattdw](http://www.djangosnippets.org/snippets/1103/) (see the link for further information). My purpose for this was to enable me to combine multiple different types of querysets together, which could then be iterated on as one object (i.e. like a tumblelog).
A modified version of the archive week generic view to make weeks start on mondays.
http://sciyoshi.com/blog/2008/aug/27/using-akismet-djangos-new-comments-framework/
Something I end up doing all the time, making a boolean variable show up as a nice image. With this code you can do the following: `{% boolean_img user.is_active %}` And get the following output: `<img src="/media/icons/accept.png" alt="True" />` All you need to do is use the custom templatetag code, load it in your template and use the `boolean_img` tag. **Adjust templates, html and images where needed**
Some times I want to change the `owner` of an object to another user - problem is the object often has a lot of other objects pointing to them - I also want to update those fields. This is a generic snippet for doing just that! For instance: change_owner(obj, new_owner_id): return update_related_field(obj, new_owner_id, field="user")
This code provides a primary key field that is globally unique. It uses the pre_save method to auto-populate the field with a Universal Unique Id as the record is saved the first time.
from http://www.djangosnippets.org/snippets/792/ from utils.extjs import ExtJSONEncoder from django.utils.safestring import mark_safe class TestForm(forms.ModelForm): class Meta: model = TestModel def as_ext(self): return mark_safe(simplejson.dumps(self,cls=ExtJSONEncoder))
Slightly different validation to that of jpwatts; developed with knowledge of that snippet but written up from scratch for use as a fallback for when the Javascript Assist is off. I'm no master programmer, so feedback/comments/criticism is more than welcome. The accompanying Javascript (xfn-admin.js) can be found here: [http://www.djangosnippets.org/snippets/1266/](http://www.djangosnippets.org/snippets/1266/).
**A Magick PIL** I used to do my image conversions with ImageMagick and system calls back in my PHP days. With Django PIL is the obvious choice for most image stuff, but frustrated by the lack of a proper unsharp mask function for PIL I found some code in the bits and pieces of documentation for PythonMagick. (yes I know, Kevin Cabazon wrote PIL_usm, but I could not get it to work, probably due to my inexperience. Anyway, this code makes it easy to convert back and forth from PIL to PythonMagick (maybe not such a good idea on a memory tight high loaded production server, but no problem on my private server (Pentium-M @ 1.8 Ghz with 1 GB Mem.) **usage:** usm takes a PIL image object. Radius and sigma is in pixels, amount 1 compares to 100% in photoshop, threshold 0.004 ~ (1/256) compares to 1 in photoshop: I'm using r=1,s=0.5,a=0.8,t=0.016 for roughly 800x600 images created from 3000x2000 (6MP) images. Experiment for your own preferences.