Hyperlink read-only ForeignKey objects in admin to their change pages
If you set a ForeignKey field in the admin to read-only, you can use this snippet to automatically create a hyperlink to that object.
- admin
Snippet List
Jquery ajax csrf framework for Django
1. Framework to extend the jquery ajax() function to construct post requests that contain a csrf token. 2. The example view used with the framework takes JSON data and returns JSON data containing either: 3. "success" with a message and additional dictionary of JSON data to use in the page 4. "error" with an error message. 5. The ajax function framework satisfies Django's csrf requirements by injecting a csrf token into the post requests created using the function. This example is a form with ~160 fields that we wanted to help fill in customer information to automatically. 1. User calls the lookup() script from the onblur attribute of the customer_id form field by leaving the field. 2. The lookup script takes the contents of the customer_id formfield and uses the jquery ajax() function to construct a JSON post request to the "/json /?act=" url. 3. The json view takes actions as get requests. We pass the post request to the JSON url already including the get request. "/json/?act=lookup" 4. The jquery framework in the snippet includes a csrf token in the ajax request automatically. 5. The customer_id is passed as JSON to the json view lookup action and customer details are attempted to be looked up in the database. 6. If successful the request returns a JSON dictionary of customer details which are pushed into the formfields using javascript in the lookup() function. The end result is if the user fills out the customer_id field of the form first (which we suggest with tooltip overlay) the customer name and address information will populate automatically. *Credit to Guangcong Luo https://github.com/Zarel
- json
- jquery
- csrf
Redirect to no slash
The canonical notion of urls ending in slashes dates from a web where urls were used to access documents and files this is no longer the case so keeping your urls witouth trailing slashes makes them prettier. The problem is that many people/blogs/spiders/browsers could end up with a url with slashes which can be problematic for you SEO, or confuse users. This script is for sites with no trailing slash dicipline in their urls, and to prevent everybody getting a horrible 404 for a simple slash you just got to remove it and issue a permanent redirect (301) and you'll get your pretty urls your cake and eat it too. I must stress, you will have to edit all your public urls removing the slashes like so: url(r'^login$', login,} If you forget, to edit them and visit the url, your browser will remember the redirect and you'll have to clean the browsing history to fix it.
- permanent redirect
- no slashes
- no slash
Precise truncate chars filter
Template filter that truncates the text when it exceeds a certain number of characters. It deletes the last word only if partial. Adds '...' at the end of the text, only if truncated. Examples (text == 'Lorem ipsum dolor sit amet', len(text) == 26) {{ text|truncatewords_by_chars:30 }} 'Lorem ipsum dolor sit amet' {{ text|truncatewords_by_chars:25 }} 'Lorem ipsum dolor sit...' {{ text|truncatewords_by_chars:21 }} 'Lorem ipsum dolor sit...' {{ text|truncatewords_by_chars:20 }} 'Lorem ipsum dolor...' By Davide Muzzarelli
- filter
- template-filter
- truncate
- truncatewords
Template filter that divides a list into exact columns
Template filter that divides a list into an exact number of columns. The number of columns is guaranteed. Example (list == [1,2,3,4,5,6,7,8,9,10]): {% for column in list|columns:3 %} <ul> {% for item in column %} <li>{{ item }}</li> {% endfor %} </ul> {% endfor %} Result: <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> <ul> <li>5</li> <li>6</li> <li>7</li> </ul> <ul> <li>8</li> <li>9</li> <li>10</li> </ul> By Davide Muzzarelli
- filter
- template-filter
- list
- columns
Add attrs automaticlly through ModelForm field max_length
1. Define a subclass extends forms.ModelForm 2. Add the __init__ method 3. Define your ModelForm extends this class 4. Define the CSS for "large","xlarge" and "xxlarge",or define yourself.
- ModelForm
- Model
- CSS
haystack auto update (forget about update_index)
Dead simple snippet. Paste it in some models (i use project_specific/models.py), and you don't need to run update_index anymore. When a model is deleted from the database: it is deleted from the index. When a model is saved (created or modified): it is updated in the index.
- haystack
models.MultipleEmailField
Define validator `multiple_email_validator` that splits value by commas and calls `validate_email` validator for each element found. Then define MultipleEmailField with this default validator and augmented max_length. Then ... use it!
- models
- fields
- validators
Generic compact list_filter with counts
Based on [#1879](http://djangosnippets.org/snippets/1879/) and [#2356](http://djangosnippets.org/snippets/2356/) Works in Django 1.3 Hopefully it's generic enough to implement a compact (sparse) version of whatever custom filter you need.
- admin-interface
- compact
- list_filter
Save Admin ChangeList Filter
Please provide suggestions on refining this code. Thanks.
- filter
- admin
- session
- redirect
- changelist
- save-filtered-changelist
JSON instead of pickle for memcached
Standard memcache client uses pickle as a serialization format. It can be handy to use json, especially when another component (e.g. backend) doesn't know pickle, but json yes.
- memcache
- cache
- json
- memcached
- pickle
Save image in field
Small function that i use to save files to an imagefield, the file can be either an url or a file. This function has the following requirements. import requests from django.core.files import File from django.core.files.temp import NamedTemporaryFile from django.conf import settings Get the awesome requests library: pip install requests This function uses MEDIA_ROOT to know the location of the static dir, you can change that chaging the static_dir variable.
- image field
- save file
Multilingual site based on domain - not accept header and django_session
On our site [Fornebuklinikken - A cosmetic surgeon in Norway](http://www.fornebuklinikken.no) we also have a domain [http://fornebuklinikken.com](http://www.fornebuklinikken.no) which should be using the 'en' language. We didn't wan't to use the standard locale lib, and wrote our own middleware which lookups the correct language corresponding to the domain (.no or .com) Any questions? Contact me on herman.schistad (at) gmail.com
- internationalization
- middleware
- multilingual
- locale
- domain
- localeurl
Image uploader to use with file uploader from http://github.com/valums/file-uploader
Upload an image with file-uploader from http://github.com/valums/file-uploader and save it to disk with the snippet and also to database if you want to
- django
- javascript
- python
- upload
- uploadhandler
- file-storage
- file-uploads
SOAP web service with soaplib 2.0
I've updated the `DjangoSoapApp` class from [this popular soaplib snippet](http://djangosnippets.org/snippets/2210/) so the snippet will work properly with soaplib 2.0. Usage is the same as before: my_soap_service = DjangoSoapApp([MySOAPService], __name__)
- soap
- soaplib
- wsdl