You have two models, one of which also has an image field. You want to get the data into a form and edit it. This also requires showing the url of the image, if there is one, on the form. This is a complete working example. No big deal, but for newbies, a complete working example could be valuable.
**Attention! This snippet must be ignored**, like [zgoda](http://www.djangosnippets.org/users/zgoda/) pointed with reason: already exists this functionality in `markup` contrib. **Explanations:** This template filter allows you to render easily a reStructuredText to **HTML** or another format it supports. **Setup:** Insert the snippet into an_app/templatetags/restutils.py. **Use in template:** `{% load restutils %}` and use it as following: - `{{ entry.content|rest:"html" }}`
If you want to test a post request to a form, you need to give all input fields, even if you just want to test if one value gets changed. This snippets parses the HTML of a view and gives you a dictionary that you can give to django.test.Client.
A python module for integration with http://www.divshare.com/integrate/api.
This is a simple template tag to create Tag Clouds. Based on the number of Posts (change the model_name according to your schema), Tags are provided different size ( most number of posts => most popular => and hence the largest. We create a property called cloudsize for each tag, which is an integer between minsize and maxsize.
This is the example of a Django Template that makes use of the clouds example given in the link. It uses the simple CSS selector font-style which can be expressed as per centage. Check the code in http://www.djangosnippets.org/snippets/473/
This is a simple template tag to create Tag Clouds. Based on the number of Posts (change the model_name according to your schema), Tags are provided different size ( most number of posts => most popular => and hence the largest. We create a property called cloudsize for each tag, which is an integer between minsize and maxsize. Check the example of sample template use here http://www.djangosnippets.org/snippets/472/
With this middleware in place (add it to the MIDDLEWARE_CLASSES in your settings) you can pass a request to the model via a pre_save method on the model. I'm not sure if it is an improvement over the [threadlocals method] (http://code.djangoproject.com/wiki/CookBookThreadlocalsAndUser) but it may be an alternative that can be improved upon? class MyModel(models.Model): name = models.CharField(max_length=50) created = models.DateTimeField() created_by = models.ForeignKey(User, null=True, blank=True) def pre_save(self, request): if not self.id: self.created_by = request.user
*Usage:* `list|sublist:"a:b"` Returns `list[a:b]` Accepts `":b"` and `"a:"` shortcuts Note that the double quotes are necessary
Working off b23's [recaptcha support](http://www.djangosnippets.org/snippets/433/), I have hacked a way to add recaptcha support using existing comments. I am sure there is a better way, and ultimately I will suggest a patch to add captcha support as an option, but for now I hope this helps. For a more detailed rundown (as well as a working sample), check out my [blog entry](http://nikolajbaer.us/blog/recaptcha-django-free-comments/).
Watch out! Previous versions of this snippet (without the values list) were vulnerable to SQL injection attacks. The "correct" solution is probably to wait until [ticket 4102](http://code.djangoproject.com/ticket/4102) hits the trunk. But here's my temporary fix while we wait for that happy day. Django's model.save() method is a PITA: 1. It does a SELECT first to see if the instance is already in the database. 2. It has additional database performance overhead because it writes all fields, not just the ones that have been changed. 3. It overwrites other model fields with data that may be out of date. This is a real problem in concurrent applications, like almost all web apps. If you just want to update a field or two on a model instance which is already in the database, try this: update_fields(user, email='[email protected]', is_staff=True, last_login=datetime.now()) Or you can add it to your models (see below) and then do this: user.update_fields( email='[email protected]', is_staff=True, last_login=datetime.now()) To add it to your model, put it in a module called granular_update, then write this in your models.py: import granular_update class User(models.Model): email = models.EmailField() is_staff = models.BooleanField() last_login = models.DateTimeField() update_fields = granular_update.update_fields
Usage: from yourapp.fields import CheckBoxManyToMany from django.db import models class Weekday(models.Model): name = models.CharField() def __unicode__(self): return self.name class EventWithWeekday(models.Model): weekdays = CheckBoxManyToMany(Weekday)
Based on the UPDATE query section of `Model.save()`, this is another means of limiting the fields which are used in an UPDATE statement and bypassing the check for object existence which is made when you use `Model.save()`. Just make whatever changes you want to your model instance and call `update`, passing your instance and the names of any fields to be updated. Usage example: import datetime from forum.models import Topic from forum.utils.models import update topic = Topic.objects.get(pk=1) topic.post_count += 1 topic.last_post_at = datetime.datetime.now() update(topic, 'post_count', 'last_post_at') (Originally intended as a comment on [Snippet 479](/snippets/479/), but comments aren't working for me)
Simple template filter that extracts from a text ids, replaces '_' with spaces and produces hyperlinked Table of Contents. More info and usage example please see at [http://www.mysoftparade.com/blog/autogenerated-toc/](http://www.mysoftparade.com/blog/autogenerated-toc/)
A template filter for adding curly quotes around a string. The filter understands enough HTML to put the quotes inside an initial paragraph begin and ending paragraph end, if they exist. Put the code inside a file in a templatetags subdir in your app, add a {% load myfile %} statement and you're ready to go with {{somebodysays|addquotes}}. Of course, beware the script kiddies, be careful with escaping.