django-smart-save
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Adds the method save_if_valid to Model, which calls both full_clean and save.
==================== django-smart-save
|License|
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Adds the method save_if_valid
to Model
, which calls both
full_clean
and save
.
Motivation
Do you think Django models save
method will validate all fields
(i.e. call full_clean
) before saving or any time at all? Wrong!
I discovered this awful truth when I couldn't understand why
a model object with an email field (without blank=True
) could be
saved with an empty string as email address.
More info:
- "Why doesn't django's model.save() call full clean?" http://stackoverflow.com/questions/4441539/
- "Model docs imply that ModelForm will call Model.full_clean(), but it won't." https://code.djangoproject.com/ticket/13100
Installing
First add the application to your Python path. The easiest way is to use
pip
::
pip install django-smart-save
You should install by downloading the source and running::
$ python setup.py install
Configuring
Make sure you have django.contrib.auth
installed, and add the smart_save
application to your INSTALLED_APPS
list::
INSTALLED_APPS = (
...
'django.contrib.auth',
'smart_save',
)
You can specify a different method name in your project settings (default: save_if_valid):
SMART_SAVE_METHOD = 'my_save'
Usage Overview
It is simple::
>>> user = User(username="chris")
>>> user.save_if_valid()
True
>>> user = User(username="")
>>> user.save_if_valid()
False
>>> user._errors
{'username': ['This field cannot be blank.']}
License
Anyone is free to use or modify this software under the terms of the BSD license.
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