Save Geolocation for an Address based model on save()

This code will work on any model using correct address data in its fields that also require latitude and longitude data to be updated on saving. It uses pythons own default urllib and json, so no need to install 3rd party stuff to make it work. This method is preferred to getting it on the fly, due to the OVER_QUERY_LIMIT that you will get when parsing many address, this way means it stays up to day in the model and will update when any part of the address changes.

• Geolocation
• Geolocation on save
• Google Geolocation

Fri 08 Nov 2019 Read More

Action export django admin to excel exactly as it appears in list-display

I separate this in two files, like this: export_excel.py and actions.py I tried to treat all possible forms of information that may appear in admin, such as properties, functions and normal fields, always getting the column name verbose_name or short_description depending on the case.

• django
• python
• django-admin
• export-excel

Thu 24 Oct 2019 Read More

FieldField Auto delete file on change or delete

FileField delete file on delete or update

• field
• File

Sat 21 Sep 2019 Read More

Django numberize templatetags

Templatetags function to convert the number into numberize method. It usefull to numberize the visitors, users, or other cases.

• django
• templatetags

Wed 11 Sep 2019 Read More

parse json string

function to parse the string text into json format

• django
• json
• templatetags
• utils
• parser

Wed 04 Sep 2019 Read More

Check If a Field Has Changed

Used to check if a field of an object has changed. This is probably most useful in the save method.

• save
• field
• change
• check

Tue 20 Aug 2019 Read More

update primary key (cascade to child tables and inherited models) - Django 1.11

An upgrade to the excellent snippet by variant at https://djangosnippets.org/snippets/2915/ Upgraded to work with Django 1.11.

• primary_key

Mon 19 Aug 2019 Read More

URLMan serializer field for Django Rest Framework (DRF)

This snippet shows how to add a `url` field to your API objects, which will then show up as an object in your JSON output. As parameters, you can specify: - `urls`: A list of strings that exist on your URLMan class - `attribute`: The name of the URLMan class on your model, defaults to `"urls"` - `full`: If the full URLs including schema and hostname should be supplied, defaults to `True`

• django-rest-framework
• urlman

Tue 13 Aug 2019 Read More

Strict Boolean Form Field

A form field for a Boolean that forces the user to make a choice from a list of choices. **Use Case** You have a Yes/No question the user must answer, but they may answer it yes or no. You don't want to supply a default because your need to force the user to actively select their answer. If they do not select an answer, the field should raise a validation error, like "This field is required". Normal BooleanField logic is based on a "checkbox", which, when "required" is required to be checked. This logic assumes that an empty value is the same as False -- in fact, there is no way for validators to distinguish between the empty value and False. Based on excellent suggestion from Peter DeGlopper: https://stackoverflow.com/a/56677670/1993525

• form_field

Wed 17 Jul 2019 Read More

Yet another query string template tag

This one works works with or without query string dicts defined in the context. And it handles replacement, addition and removal of values for parameters with multiple values. Usage: {% url view %}{% query_string qs tag+tags month=m %} where `view`, `qs` (dict), `tags` (list of strings) and `m` (number) are defined in the context. Full detail in the doc string.

• url
• template-tag
• query-string

Thu 04 Jul 2019 Read More

Geoip middleware to restrict users to a set of allowed countries

This middleware uses Django's Geoip support (https://docs.djangoproject.com/fr/2.2/ref/contrib/gis/geoip2/), as well as axes's package helper to retrieve IP address (since Django's REMOTE_ADDR might be wrong when behind a reverse proxy). Ensure your geolite DB files are up to date (eg. with https://djangosnippets.org/snippets/10674/). The checker is optional, but ensures that security is not broken due to a misspelled/missing GEOIP_COUNTRY_WHITELIST.

• middleware
• ip
• country
• geoip
• restriction
• blocker

Wed 26 Jun 2019 Read More

Django management command to update local Maxmind Geoip databases

This management command updates country and city Geolite databases from Maxmind (binary databases, not CSV ones), for use with Django's builtin Geoip utilities.

• maxmind
• management
• databases
• geoip
• python3

Wed 26 Jun 2019 Read More

spaceless_json

Now you can format and compress json-data in django template

• django
• templatetag
• json
• spaceless
• formatting
• application/id+json

Sat 22 Jun 2019 Read More

Choice Field and Select Widget With Optional Optgroups

Renders an select field with some optgroups. Some options can be outside the optgroup(s). The options and labels should be in a tuple with ((label, choices),) where choices is a tuple ((key, value), (key2, value2)). If a label is null or blank, the options will not belong to an opt group.

• newforms
• widgets
• select
• optgroup
• option

Fri 14 Jun 2019 Read More

Active link

I needed a way to find if a menu items should be active. After searching the internet i found a few options*, but none of them did fit my needs, so i wrote my own: Usage: <a href="{% url 'view-name' %}" class="{% current request 'view-name' %}"></a> * http://gnuvince.wordpress.com/2008/03/19/the-new-and-improved-active-tag/ * http://stackoverflow.com/questions/340888/navigation-in-django

• template
• path
• active
• link
• current

Fri 14 Jun 2019 Read More