This is a quite simple snippet to integrate postgresql trgm search in django 1.6.10 This snippet is easy to adapt to other special operators by changing the trgm_search function. This example uses the operator `%%` but you could use `ts_vector(fieldname) @@ to_tsquery(%s)`
Instead of the default Django User the Auth Model is 'customer' from the usercp App. User's can use username as a display to the public, without disclosing their login information. This way they can use a forum with their username, which is seen by everyone. The login credentials, however are more privat, since it is the e-mail address. Allowing the user to not disclose any information.
PreviewMixin adds a preview page for Django's CBV (FormView, UpdateView, CreateView). After a form has been submitted, it is returned again, optionally in a different template to confirm. If the form is submitted with the same data, the default "form_valid" function is executed. Features: 1. `process_preview` - function executed after submitting the form for the first time (default is to do nothing) 2. `done` - function for the action if the confirm page is sent (defaults to whatever form_valid of the django cbv does) 3. `preview_template_name` - variable with the name of the template for the confirm page (defaults to taking the same template as for the initial form) 4. new function `security_hash` to calculate a hash which is added to the confirmation form. Works kind of like django-formtools, just as a Mixin for the default Django cbv.
The recipe uses deferred constraint validation to create circular references across database tables. The example requires Postgres (MySQL doesn't support deferred constraints). To achieve this, the following is required: * Insertions must be performed in a transaction. Foreign key constraints will be validated at the end of the transactions, allowing for insertion of rows with FKs pointing to rows that don't exist yet. * Primary keys need to be generated before insertion. That's what `prefetch_id` does by pulling the next value from the `*_id_seq` sequence.
Adds init and changes passed args to *args and **kwargs .
Mixin to support pagination when randomizing querysets. Requirements: Postgres, Django Sessions Note: This shouldn't be used on large complex datasets. It utilizes the relatively slow method of '?' randomized sorting. Use with caution. Todo: MySQL support, Support for larger datasets
I've reimplemented the code I found somewhere on the web within my models file. The earlier version was incapable of converting all formats to JPG while this code converts all formats and compresses all of them successfully. You need to have PILLOW installed for this to work.
I've reimplemented the code I found somewhere on the web within my models file. The earlier version was incapable of converting all formats to JPG while this code converts all formats and compresses all of them successfully.
Disable editing adding and deleting inline models in django admin on editing parent model
Basic Authentication mixin for Django. Use in your class based views.
A simple way to force SSL on all pages. It's very simple at this point - the only issue I can see right now and I will address this later is if someone sends http:// in another portion of your url.
Everybody know about long spagetty-style settings file for django :-) I tried to find any cool settings loader, but have no luck.I created this one myself. Ok, we forgetting about `settings.py` and creating module settings (folder named settings with file `__init__.py`). This `__init__.py` file have preloader for modules placed in settings folder and `../settings_local.py` (if exists) at the end. settings_local is awesome tool, when you use any VCS like git and have settings in vcs, but for example you have different database connection settings. You can change this settings in settings_local. Settings splitter have variable moduleweights. This variable declares weights for selected modules to allow loader sort modules by priority and use already defined settings in each other loaded module. You can define your custom modules and weights there. Ok, now few examples. settings/env.py import os # Quick-start development settings - unsuitable for production # See https://docs.djangoproject.com/en/1.6/howto/deployment/checklist/ DEBUG = not 'http/ask.helldude.ru/' in os.path.realpath(__file__) settings/assets.py # Static files (CSS, JavaScript, Images) # https://docs.djangoproject.com/en/1.6/howto/static-files/ import os import sys settings = sys.modules['project.settings'] STATIC_URL = '/static/' STATIC_ROOT = os.path.join(settings.BASE_DIR, 'static') STATICFILES_DIRS = (os.path.join(settings.BASE_DIR, "project/static"),) STATICFILES_FINDERS = ( 'django.contrib.staticfiles.finders.FileSystemFinder', 'django.contrib.staticfiles.finders.AppDirectoriesFinder', 'compressor.finders.CompressorFinder', ) settings_local.py: import sys settings = sys.modules['project.settings'] print 'I WAS LOADED KHA KHA KHA' if settings.DEBUG: print 'In debug mode' You can see amazing 'hack' there :-) I use already defined settings via sys.modules['project.settings'] (where project is common folder for my project applications). I hope you like this small lifehack for django settings! rudude.
jQuery dataTables is a fantastic and powerful client-side plugin, which has many capabilities. There are many libraries out there that easily integrate it with django with little to no effort. However, they provide everything out of the box, which isn't always the most flexible solution. I also think beginners have a lot to learn from not using already created tools. So, finding the general examples out there lacking, I though I'd hatch out a quick example of how to very basically integrate the two. I supply two lists at the top which define how to order the fields and which are searchable (quite similar to the one defined in the admin site) and later everything is figured from there. Of course, for a little more complex implementation (say using a method instead of a field) this will not work (since getattr doesn't automatically call a function if it is a function), but this snippet isn't supposed to provide everything but a very basic usage example, which can be very quickly expended in any way needed. Anyway, this snippet should work on all django versions and all dataTables versions without a hitch. last note- I use `cStringIO` with `json.dump` out of good personal experience with that settings, though it might not be the best way to serialize the data. Good luck, share use and enjoy, ~yuvi
Tag to correctly uppercase Greek characters with accent, copy the code in your templatetags folder in a file of your choice, load it in your templates {% load yourfile %} and use it as {% string|gruppercase %} the code works also with other languages, it won't modify anything (eg {% ukwork|gruppercase %} as it transforms only Greek characters (unless your language contains Greek characters).
Beware if using Amazon Simple Queue Service to execute Celery tasks which send email messages! Sometimes SQS messages are duplicated which results in multiple copies of the messages being sent. This is a simple decorator which uses a cache backend to prevent the task from executing twice in a specified period. For example: @task @execute_once_in(3600*24*7) def cron_first_week_follow_up(): """ Send a follow-up email to new users! """ pass For more info see <http://atodorov.org/blog/2013/12/06/duplicate-amazon-sqs-messages-cause-multiple-emails/> <http://atodorov.org/blog/2013/12/11/idempotent-django-email-sender-with-amazon-sqs-and-memcache/>