Django forms add placeholder from help text template tag
This snippet will change the field to include the placeholder in the field using the help_text attribute from the model or the form
- template
- tag
- forms
- help_text
- Django
- placeholder
Snippet List
Highlight matched search term
sterm is the search term. text is the result search text. it will highlight every matched search term in search result. please define your own .yellow css class. use: {{search_result_var|highlight:search_term}}
- highlighting
- custom-template-tag
Conditional INSTALLED_APPS entry
Some INSTALLED_APPLICATIONS applications may not be critical for your website to work - for example you may only need them for development - like 'django_extensions' or 'debug_toolbar'. They needn't be installed actually for the site to work. This way you can avoid discussions with other developers if some application should be included, or is it just spam, because if they don't like it, they don't have to install it. On a production server you can leave this not installed, to avoid security concerns like a possibility to IP-spoof and see the debug toolbar.
- configuration
- settings
- conditional
- installed_apps
Multiple emails field
Model Field allowing to store multiple emails in one textual field. Emails separated by comma. All emails are validated. Works with Django admin.
- multiple
- validation
- multifield
ExcelResponse2
A function extends of Tarken's django-excel-response django-excel-response 1、djangosnippets - http://djangosnippets.org/snippets/1151/ 2、pypi - https://pypi.python.org/pypi/django-excel-response/1.0 When using Tarken's django-excel-response. We find that Chinese is messed code when we open .xls in Mac OS. As discussed in http://segmentfault.com/q/1010000000095546. We realize django-excel-response2 Based on Tarken's django-excel-response to solve this problem By adding a Param named font to set font.
- output
- httpresponse
- excel
- cvs
vary_on_user
@vary_on_user doesn't work properly if your site uses third-party cookies, since the cache key is created from *all* of the cookies in the request header. This decorator caches pages based on the user ID, so it works reliably.
- decorator
- vary_on_cookie
Email Auth
Yet another authentication by email address. This one is quick and dirty as we are saving email address in both Username and Email fields. For proper way how to deal with it see https://docs.djangoproject.com/en/1.6/topics/auth/customizing/#auth-custom-user
- auth
A complete Usercake compatible password hasher
Use this class to authenticate against Usercake (http://usercake.com/) password strings. When importing passwords from Usercake, the database values should be prefixed with "usercake$".
- password hasher
- usercake
Dynamic SITE_ID thread-safe
Store in SiteID a local var store for save SITE_ID thread-safe and set it with middleware. It's base on https://djangosnippets.org/snippets/1099/ but with call to local() in SiteID and using custom models for web site and domains.
- dynamic
- site_id
- thread-locals
Read-only Model Form Base Class
The simplest way of displaying a "details" table about any model, is to show a ModelFrom with all fields readonly or (selects) disabled. Also, the labels are preferably translatable, not just capitalized names of the column tables in your models. So the constructor translates the field labels as well.
- form
- readonly
File Mimetype Validator (Using python-magic)
This validator works well with FileField form fields and can validate that an uploaded file has an acceptable mimetype. Place this snippet in your app's `validators.py`. Requirements: This snippet uses [python-magic](https://github.com/ahupp/python-magic). To install: pip install python-magic Usage (in forms.py): from validators import MimetypeValidator class MyForm(forms.Form): file = forms.FileField( allow_empty_file=False, validators=[MimetypeValidator('application/pdf')], help_text="Upload a PDF file" )
- validation
- upload
- magic
- mimetype
- FileField
JSON serializer supporting natural primary keys
Copy this file into `your_app/serializer.py`, and add this to your settings: SERIALIZATION_MODULES = { 'json': 'your_app.serializer', } Now you can dump your models with the classical `dumpdata -n` command and load it with `loaddata` and get support for natural primary keys and not only with foreign keys and many to many fields.
- serializer
Template tag and filter for displaying number of years since
Because {% now "Y"|add:"-2005" %} - etc. doesn't work, you can use the above in your template like: We have {{ 2000|since }} years of experience. or: Serving our customers with passion for more than {% years_since 2005 %} years.
- template
- now
- since
- years
Display values from a bound (submitted) form
Function that takes a bound form (submitted form) and returns a list of pairs of field label and user chosen value. It takes care of: 1. fields that are not filled out 2. if you want to exclude some fields from the final list 3. ChoiceField (select or radio button) 4. MultipleChoiceField (multi-select or checkboxes) Usage: if form.is_valid(): form_data = get_form_display_data(form, exclude=['captcha']) It's trivial to display the list of pairs in a template: {% for key, value in form_data %} {{ key }}: {{ value }}{% endfor %}
- template
- form
Fixed-point Decimal model field with integer storage
Fixed-point model field based on `IntegerField` and `DecimalField`. Represented as `Decimal` in Python for accurate calculations, stored as integer in the database. Configurable decimal places, defaults to 2.
- money
- decimal
- fixed-point
3110 snippets posted so far.