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

Wed 05 Jan 2022 Read More

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> &rsaquo; {{ 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

Fri 26 Aug 2011 Read More

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

Sun 16 Feb 2014 Read More

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

Sun 14 Jun 2015 Read More

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

Fri 17 Feb 2012 Read More

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

Sun 11 Jul 2010 Read More

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

Mon 03 Jun 2013 Read More

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

Sun 11 Jul 2010 Read More

Run sqlsequencereset on all apps

Run this code in the python shell and sqlsequencereset will be executed for every app that has models.

• sqlsequencereset

Mon 27 Jan 2020 Read More

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

Sun 09 Dec 2012 Read More

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

Sun 11 Jul 2010 Read More