Run sqlsequencereset on all apps
Run this code in the python shell and sqlsequencereset will be executed for every app that has models.
- sqlsequencereset
Snippet List
TaskViewMixin, fires off a task and polls until completion
TaskViewMixin can be mixed in with a Class Based view and handles the scheduling and polling of a task. During task execution, a waiting page is rendered that should refresh itself. Once the task is complete, the view may then render a success page and can collect the payload of the task for rendering the result.
- asynchronous
- class-based-views
- celery
Conditional url pattern include
if_installed checks to see if the app is in installed apps. If it is not then it excludes it from being resolved in the url structure. In this example, myapp.urls will not be imported if myapp is not installed
- urls
- resolver
Encryption Fields
This provides some basic cryptographic fields using pyCrypto. All encryption/decription is done transparently and defaults to use AES. Example usage: class DefferredJunk(models.Model): semi_secret = EncryptedCharField(max_length=255)
- model
- field
- encryption
Require login by url
An example of using it in your settings.py: MIDDLEWARE_CLASSES = ( 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.middleware.doc.XViewMiddleware', 'util.loginmiddleware.RequireLoginMiddleware', ) LOGIN_REQUIRED_URLS = ( r'/payment/(.*)$', r'/accounts/home/(.*)$', r'/accounts/edit-account/(.*)$', ) In a nutshell this requires the user to login for any url that matches against whats listing in LOGIN_REQUIRED_URLS. The system will redirect to [LOGIN_URL](http://www.djangoproject.com/documentation/settings/#login-url)
- middleware
- authentication
- url
- login
- auth
auto image field w/ prepopulate_from & default
Given such code: class ProductImage(models.Model): fullsize = models.ImageField(upload_to= "products/%Y/%m/%d/") display = AutoImageField(upload_to= "products/%Y/%m/%d/",prepopulate_from='fullsize', size=(300, 300)) thumbnail = AutoImageField(upload_to="products/%Y/%m/%d/",null=True,default='/media/noimage.jpg')) display will be automatically resized from fullsize, and thumbnail will default to /media/noimage.jpg if no image is uploaded Note: At some point the code broke against trunk, which has now been updated to work properly
- image
- models
- db
- field
Render specific blocks from templates (useful for AJAX, alternative)
Special thanks to the author of snippet 769 who provided most of the code for this snippet. Major differences: 1.Simpler/better handling of "extends" block tag 2.Searches If/Else blocks 3.Less code 4.Allow list of templates to be passed which is closer to the behavior of render_to_response
- template
- block
- templates
- render
- context
- blocks
Super User Conditional Page Exception Reporting
**Step 1** Save somewhere in your project directory **Step 2** Add to your settings.py MIDDLEWARE_CLASSES = ( 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.middleware.doc.XViewMiddleware', 'utils.debug.UserBasedExceptionMiddleware', ) Normal users will get your 500.html when debug = False, but If you are logged in as a super user then you get to see the stack trace in all its glory.
- middleware
- debug
- exception
SSL Redirect Middleware
Snippet 240 is great, but it does not handle flatpages since flatpages are not technically a view. This operates on the request level, not the view level so it will handle flat pages. **Step 1** Add this class to your MIDDLEWARE_CLASSES **Step 2** Add an entry in settings.py which is a list of regex to match against urls that u want to have ssl: SSL_URLS = ( r'/login/', r'/home/', r'/super-sensitive-information/', )
- middleware
- ssl
- redirect
Generic CSV Export
This will generically add csv exporting to your views in the admin. It will default to exporting the entire table you see (without paging). If the table only has one column, it will export the fields the the model. You can overide this functionality. I ended up creating my own admin/change_list.html to apply this functionality universally: {% extends "admin/base_site.html" %} {% load adminmedia admin_list i18n %} {% block stylesheet %}{% admin_media_prefix %}css/changelists.css{% endblock %} {% block bodyclass %}change-list{% endblock %} {% if not is_popup %}{% block breadcrumbs %}<div class="breadcrumbs"><a href="../../">{% trans "Home" %}</a> › {{ cl.opts.verbose_name_plural|capfirst|escape }}</div>{% endblock %}{% endif %} {% block coltype %}flex{% endblock %} {% block content %} <div id="content-main"> {% block object-tools %} <ul class="object-tools"> <li><a href="csv/{%if request.GET%}?{{request.GET.urlencode}}{%endif%}" class="addlink">Export to CSV</a></li> {% if has_add_permission %} <li><a href="add/{% if is_popup %}?_popup=1{% endif %}" class="addlink">{% blocktrans with cl.opts.verbose_name|escape as name %}Add {{ name }}{% endblocktrans %}</a></li> {% endif %} </ul> {% endblock %} <div class="module{% if cl.has_filters %} filtered{% endif %}" id="changelist"> {% block search %}{% search_form cl %}{% endblock %} {% block date_hierarchy %}{% date_hierarchy cl %}{% endblock %} {% block filters %}{% filters cl %}{% endblock %} {% block result_list %}{% result_list cl %}{% endblock %} {% block pagination %}{% pagination cl %}{% endblock %} </div> </div> {% endblock %}
- admin
- export
- csv
Callable Class View
Instead of using a function for your views, this allows you to use a class. For your urls definition it works just as it normally does.
- view
- callable
- response
zbyte64 has posted 11 snippets.