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Loading initial data per model at table creation (useful with migrations)

A very simple way of automatically loading data on model creation. As I am using South I wanted an automatic way of loading initial data only when a new model is create during a migration. Django provides almost everything out of the box by providing the *post_syncdb* signal (triggered also by South migrate command) and the *loaddata* command. The code will simply look for a an existing fixture named `<model>_initial.*` and invoke the *loaddata* command to try to load it Note: beware *post_syncdb* signal is deprecated since version 1.7: it has been replaced by *post_migrate*.

  • loaddata
  • migration
  • south
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Text Highlighting Filter

This filter can be used to wrap <span class='highlight'> around anything you want to highlight in a block of text. For example, if you had 'foo bar foo baz' inside the context variable MYTEXT, you could do {{ MYTEXT|highlight:'foo' }}, and "<span class='highlight'>foo</span> bar <span class='highlight'>foo</span> baz" would be returned. How you style the highlight class is up to you.

  • filter
  • text
  • highlight
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Admin action for a generic "CSV Export"

Based on [#2020](/snippets/2020/) Save the snippet as actions.py within your django app, and then add an action on any model you want in it's ModelAdmin definition. Example usage: from actions import export_as_csv_action class YourModelAdmin(admin.ModelAdmin): list_display = (...) list_filter = [...] actions = [export_as_csv_action("CSV Export", fields=[...])] * - Added UTF-8 encoding support * - Bugs fixed

  • admin
  • export
  • csv
  • action
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Mini issue tracker

Described more fully on [my blog](http://e-scribe.com/news/230), but the gist is: this model becomes a sort of mini-app in your admin, allowing you to record and track issues related to your other applications. Sorting still needs some work. UPDATED 2007-03-14: Fixed repeat in Admin.list_display (thanks, burly!); added Admin.list_filter; changed app list (why did I call that `PROJECTS`, anyway?) to omit "django.*" apps

  • admin
  • model
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Author: pbx
  • 15
  • 31

Django load global fixtures test helper

This lets you load global fixtures from a directory you set as `FIXTURES_ROOT` in your settings.py. For example, setting `FIXTURES_ROOT` to `/path/to/myproject/fixtures/` I tend to like to keep fixtures that should be loaded when a new instance of a site is deployed, but not auto-loaded (so they won't rewrite any data that comes after), in a project-level fixtures directory like this. Sometimes these fixtures can be useful in your test suites, so this is a convenient way to load them. Usage: `load_global_fixtures('sites.json', 'contacts.json')` `load_global_fixtures('sites.json', 'contacts.json', fixtures_root='/some/other/path', verbosity=1)`

  • fixtures
  • tests
  • helper
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Author: vaz
  • 1
  • 1

django app name & breadcrumbs l10n

This approach allows you to rename you app name & app breadcrumbs within admin interface. Paste the code in admin.py of your application and change AppLabelRenamer.main params.

  • admin
  • applications
  • admin-interface
  • breadcrumbs
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Django JSONP Decorator

This decorator function wraps a normal view function so that it can be read through a jsonp callback. Usage: @AllowJSONPCallback def my_view_function(request): return HttpResponse('this should be viewable through jsonp') It looks for a GET parameter called "callback", and if one exists, wraps the payload in a javascript function named per the value of callback. Using AllowJSONPCallback implies that the user must be logged in (and applies automatically the login_required decorator). If callback is passed and the user is logged out, "notLoggedIn" is returned instead of a normal redirect, which would be hard to interpret through jsonp. If the input does not appear to be json, wrap the input in quotes so as not to throw a javascript error upon receipt of the response.

  • jsonp
  • jsonp-decorator
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Reliably create a Django File using the contents of a URL

There's no direct way to save the contents of a URL to a Django File field: you're required to use a File instance but those can only safely wrap normal files, not the file-like object returned by urllib2.urlopen. Several examples online use urllib.urlretrieve() which creates a temporary file but performs no error handling without writing a ton of hackish code. This demonstrates how to create a NamedTemporaryFile, fill it with the URL contents and save it, all using APIs which raise exceptions on errors.

  • url
  • filefield
  • file
  • urlopen
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Remember me for login

Set session to never expire in settings, and when remember_me is found false in login POST, set it to browser session expiry. Works only in Django 1+.

  • views
  • python
  • login
  • rememberme
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Additional Change List Columns

Ever wanted to add a link or two at the end of a row in a model's change list? Say you had a model for people and a model for registrations or blog posts and you want to modify the people change list so it has a link to, say all of the registrations or blog posts for the person. Well, Django provides half of the solution already in that the example registration change_list already handles the display of all registrations tied to that person. For example, the url `/admin/registrations/registration/?person__id__exact=121` gets you to a filtered list of registrations for the person with the id of 121. This is the same url used if you use list_filter in your model definition (though setting list_filter is not required for what we're doing). Okay, so to add a link to the end of each person row in the change list, you need to create a template tag similar to "person_result_list" in the code. There, I've given an example that adds two links. Each dictionary in additional_links needs to have at least a text, sortable, and url_template attribute. The text attribute is what will display as the header to the column. url_template will be fed the id of the row object (in this example, a person id), which you can use to construct the link for each row. You could extend this if you wish, though all I ever need is the id. And the last step is to use your new template tag in a modified change_list.html in place of the default result_list tag. The example at the bottom of the code shows an example usage of the tag. Hope this makes sense and is helpful to someone!

  • template
  • admin
  • tags
  • change_list
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Google Contacts API friend finder

This view will provide a link for AuthSub proxy authentication to the Google Contacts API and then grab the user's Google contacts and compare against User.email for possible user relationships. A couple of things to note: * Dependency on the GData Python client library: http://code.google.com/p/gdata-python-client/ * The domain hosting the view must be verified by Google's domain manager (otherwise API calls will result in a 403): https://www.google.com/accounts/ManageDomains Thanks to Simon for get_url_host and get_full_url.

  • api
  • gmail
  • google
  • gdata
  • contacts
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Google Account authentication

Use django_openid_auth from https://launchpad.net/django-openid-auth to authenticate your users with their Google Account. This snippet will allow your users having a Google Account address as username to log in using it.

  • authentication
  • openid
  • google-account
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