keeping filter states after edits

When saving an edit to an object from a filtered list view you are, by default, returned to list view without any of your filters applied. This solves that problem, keeping the filtered view in a session variable until you reach a point where the session key is deleted. The solution presented here is hugely based off of other's work with most of the solution gained from: [Admin: return to change_list with filter and pagination applied](http://djangosnippets.org/snippets/2415/ "Admin: return to change_list with filter and pagination applied") This solution offered the best approach in our mind over the others listed here on snippets since the solution didn't require changes to template code...this is completely self contained within your own admin.py files. The advantage to our solution over the above linked solution is that under different use cases the user may or may not be redirected to the filtered list_view. For example, if you edit an object and click the save and continue button, then you would lose the filter when you finally finished editing the object and clicked save. Added on here is a delete of the session key when users add objects, the reasoning we're going this route is we don't want to return users to filtered views when they just added a new object. Your mileage may vary and if so, it's easy enough to fit your own needs. HTHs

• filter
• admin
• change_list

Sat 31 Aug 2013 Read More

filter for simplifying creating data URI´s

This filter will return data URI for given file, for more info go to: [wikipedia](http://en.wikipedia.org/wiki/Data_URI_scheme) Sample Usage: ` <img src="{{ "/home/visgean/index.png"|dataURI }}"> ` will be filtered into: ` <img src="data:image/png;base64,iVBORw0..."> ` This is good for small images.

• filter
• mime
• uri
• data URI

Wed 03 Jun 2015 Read More

Return to change_list with filter after change

This snippet allows you to return back to the filtered change_list after clicking "Save" on a change form. Other snippets I've found don't seem to take into account clicking on "Save and add another" or "Save and continue"

• filter
• admin
• change_list

Mon 15 Aug 2011 Read More

Generic model filter from request GET data

You just use standart django query terms, for example: <form> <input class="field_text filter_from" type="text" name="cost__gte" placeholder="from" value="{% if request.GET.cost__gte %}{{ request.GET.cost__gte }}{% endif %}"> <input class="field_text filter_to" type="text" name="cost__lte" placeholder="to" value="{% if request.GET.cost__lte %}{{ request.GET.cost__lte }}{% endif %}"> </form> model: class Object(models.Model): cost = models.IntergerField() objects = ObjectManager()

• filter
• forms
• queryset

Thu 01 Aug 2013 Read More

filter for extracting a number of paragraphs from any HTML code

From: [incredible times](http://incredibletimes.org) With inspiration from: [Unethical Blogger](http://unethicalblogger.com/2008/05/03/parsing-html-with-python.html) This code parses any provided HTML content, and extracts a number of paragraphs specified, with all the content and tags inside them. Example: Template variable "content" contains: <a href="#>some text</a> <p><strong>Testing</strong>testing testing this is a tester's life</p> <div>I wont see the world</div> <p>Another paragraph</p> So, place this code in any loaded template module (inside a templatetags folder of your app... i.e. myapp/templatetags/myutils.py) {% load myutils %} {{ content|paragraphs:"1"}} Would return: <p><strong>Testing</strong>testing testing this is a tester's life</p> Whereas {% load myutils %} {{ content|paragraphs:"2"}} Returns: <p><strong>Testing</strong>testing testing this is a tester's life</p> <p>Another paragraph</p>

• filter
• paragraph
• html
• parse
• extract

Sun 10 Feb 2013 Read More

HTML5 filter for XXS

Usefull for TinyMCE, to allow some HTML but be vunarable by XXS attacks You need to install html5lib sudo easy_install html5lib

• template
• filter
• security
• sanitize
• xss

Sun 12 Aug 2012 Read More

Generic object_detail view filterable by multiple url values

This view acts as an extension to the object_detail generic view in django.views.generic.object_list. The standard generic view can only filter the queryset by object_id or slug; this view allows you to filter by any parameter you like, as well as multiple parameters. The usage is the same as the standard object_detail view except that you must also give the parameter 'filters', which should be an array of what you would like to filter the url values as, and instead of 'slug' or 'object_id' as the regex parameter in the URL, use 'value1', 'value2', etc. Example: If you have a list of companies, each with multiple branches, you may want a branch details page. A URL for this may look as follows: http://www.mysite.com/company/company-slug/branch-slug/. To implement this simply use the urlpattern example give,

• filter
• urls
• generic-views
• generic-view
• filterable

Wed 14 Dec 2011 Read More

Admin: return to change_list with filter and pagination applied

By default every time you change and save an object in the admin, the change_list "jumps" to the first page, so filters you used to find the object (or the pagination-page) have to be applied again. If you have to go through a multi-object-list step-by-step this could become really annoying. The above snippet changes this behaviour by returning to the referring URL when saving. Included in this URL are variables for the filters/pagination. The snippet is part of your custom Model.admin in admin.py.

• filter
• admin
• pagination
• change_list

Tue 28 Feb 2012 Read More

math filter

A filter for general math operations.

• filter
• math

Mon 20 Feb 2012 Read More

currency filter without using locale

This snippet is a combination of the existing currency snippets I found and some modifications to use your own settings without the need to have the locale installed on the system. You can define in settings.py: DECIMAL_SEPARATOR = ',' THOUSAND_SEPARATOR = '.' CURRENCY_SYMBOL = u'€' With the above settings, using `{{ 1234.30|currency }}` on a template would result in `€1.234,30`

• template
• filter
• currency

Fri 18 May 2012 Read More

Group sequence into rows and columns for a TABLE

Two template tag filters that can be used to create a table from a sequence. <table> {% for row in object_list|groupby_columns:3 %} <tr> {% for obj in row %} <td>{{ obj }}</td> {% endfor %} </tr> {% endfor %} </table> The example above would create a table where items read from top to bottom, left to right, in 3 columns. "Empty" cells are added to the sequence by the filter so that your rows balance.

• filter
• templatetag
• table
• groupby

Thu 24 Feb 2011 Read More

Group results by a range of dates in admin sidebar with calendar

Adds filtering by ranges of dates in the admin filter sidebar. [https://github.com/coolchevy/django-datefilterspec](https://github.com/coolchevy/django-datefilterspec) [http://coolchevy.org.ua](http://coolchevy.org.ua) https://github.com/coolchevy/django-datefilterspec/raw/master/datefilter.png Example: ` from django.db import models import datefilterspec class Person(models.Model): date = models.DateTimeField(default=datetime.datetime.now) date.date_filter = True class Admin: list_filter = ['date']

• filter
• admin
• date
• calendar
• sidebar
• filterspec

Wed 20 Nov 2013 Read More

currency filter with minus symbol replacement and css class adding

uses the system or specified locale to format a number. a css class called 'negative' would be added if the format is negative and the minus symbol would be replaced if it is the last char.

• filter
• css
• currency
• class
• minus
• negative

Mon 17 Jan 2011 Read More

cleat_list

Clear list from unwanted elements, within django template.

• template
• filter
• list
• clear

Thu 23 Dec 2010 Read More

Accordion changelist admin

This is adapted from [rodnsi's version](http://djangosnippets.org/snippets/1818/) to work with Django 1.2 (as django.contrib.admin came with jQuery built in as of 1.2).

• filter
• hide
• collapse
• changelist
• list_filter
• accordion
• collapsible

Fri 22 Apr 2011 Read More