Login

3113 snippets

Snippet List

Convert multiple select for m2m to multiple checkboxes in django admin form

This is a javascript to call in the Media class of the ModelAdmin instance for the model, requires some additional css. The goal of such approach is that the add related functionality is supported, and works also with the django-mptt model fields. The new component can support resize functionality, in such case the jquery-ui resizable script is needed. For a complete documentation on this, and how to use it inside your project please visit this [blog post](http://www.abidibo.net/blog/2013/04/10/convert-select-multiple-widget-checkboxes-django-admin-form/)

  • django-admin
  • multiplecheckboxfield
  • multiple-select
  • django-mptt
Read More

remove the annoying "Hold down control..." messages

This function mangles a generated form class to remove the Hold down "Control", or "Command"... messages from the help text. This is really a dirty hack awaiting a proper solution to [Django ticket 9321](http://code.djangoproject.com/ticket/9321). This function can be useful for forms in the admin interface that use custom widgets. Basic usage: class MyModelForm(forms.ModelForm): class Meta: model = MyModel class MyAdmin(admin.ModelAdmin): form = remove_holddown(MyModelForm, ('field1', 'field2'))

  • admin
  • forms
  • hack
  • widget
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
Read More

SQL Printing Middleware

Just put it in your python path and add it into MIDDLEWARE_CLASSES. I know that there are a couple of snippets on this site that do something similar to this, but none of them quite suited me. I wanted something that would indent and space the SQL so that I could differentiate it from the other output from the development server. Also, I wanted something that would output total query execution time, which my solution does. I just hope that it's useful for someone else, too! UPDATE: Now this should no longer get upset when running it on windows.

  • sql
  • middleware
  • profile
  • debug
  • help
  • console
  • printing
  • speed
Read More

SelectRelatedManager

Because select_related() only works on ForeignKeys that are not null or blank, when you are customizing the admin, even if you set "list_select_related=True" you can still end up with way too many querys in the Admin changelist. By adding this code to your model you can decrease the queries dramatically. I found I needed this when I was working with Django apps with a lot of legacy data and I couldn't set the ForeignKey null=False.

  • admin
  • manager
  • select
  • queryset
Read More

Admin actions as buttons instead of a menu [v2]

Add this to your admin change_list.html template to replace the actions drop-down with buttons. This is a rewritten version of snippet [1931](http://djangosnippets.org/snippets/1931/) with Django 1.3 compatibility and cleaner code. Thanks to [andybak](http://djangosnippets.org/users/andybak/) for the idea.

  • admin
  • actions
Read More

Export Related as JSON Admin Action

[The Django Admin Action documentation leads you through exporting a queryset to JSON](http://docs.djangoproject.com/en/dev/ref/contrib/admin/actions/#actions-that-provide-intermediate-pages). However exporting from a single model rarely tells the whole story. Using the CollectObjects class, `export_related_as_json` gathers all instances related by foreign keys to what is being exported and exports them as well in a serialization bonanza. Use it to export Users and you'll get their Profile objects as well! **Usage** # admin.py from django.contrib import admin admin.site.add_action(export_related_as_json)

  • serialize
  • admin
  • json
  • export
  • admin-action
Read More

Generic admin action export selected rows to excel

Based on [Snippet 2558](http://djangosnippets.org/snippets/2558/) but without saving the generated file to disk before downloading. Requires, pyExcelerator Usage: Add the code to your project, e.g. a file called actions.py in the project root. Register the action in your apps admin.py: `from myproject.actions import export_as_xls class MyAdmin(admin.ModelAdmin): actions = [export_as_xls]`

  • admin
  • export
  • admin-actions
  • xls
Read More

Ajax form with jQuery

I recently got a form working via jQuery and Django. This was not easy for me to do and I thought I'd record my finding here. The form submits via jQuery and the "form" plugin. Please visit jQuery's home page to find all those links. This code handles: * urls.py -- passing both normal and 'Ajax' urls to a view. * views.py -- Handling both kinds of requests so that both normal and ajax submits will work. * The HTML template with the script for submitting and some bling. Error handling === I like to stay DRY so the idea of checking the form for errors in javascript *and* checking it in Django irks me. I decided to leave that up to Django, so the form submits and gets validated on the server. The error messages are sent back to the browser and then displayed.

  • ajax
  • urls
  • fields
  • views
  • jquery
  • form
  • errors
Read More

Generic AJAX app

This is based on the Admin app functionality for dispatching calls. Once you put these two files in place then add the following to urls.py: from myProject import ajax urlpatterns = patterns('', ... # Add this to the urlpatterns list (r'^ajax/(.*)', ajax.dispatcher.urls), ...) you register a function or method with a name like so: from django.contrib import ajax def myAutoCompleteCall(request): ... ajax.dispatcher.register('myAutoComplete', myAutoCompleteCall) Then you can use the url: `http://www.mysite.com/ajax/myAutoComplete` Previously I had placed this app in the django\\contrib directory because I wanted to use it in an Admin app mod. Since the release of 1.1 I was able to move it out into a standard app because of the new `formfield_overrides` property of the `ModelAdmin` class.

  • ajax
  • django
Read More

django ajax_view decorator

All credit goes to Peter Coles. [http://mrcoles.com/blog/decorator-django-ajax-views/#c281](http://mrcoles.com/blog/decorator-django-ajax-views/#c281) I slightly modified the original code to work without passing parameters to decorator. I will delete this post if anyone does not want this snippet to be posted.

  • ajax
  • ajax view decorator
Read More