معرفی شرکت ها
django-select-multiple-field-0.4.2
تبلیغات ما
مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.
مشاهده بیشتر
تبلیغات ما
مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.
مشاهده بیشتر
تبلیغات ما
مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.
مشاهده بیشتر
تبلیغات ما
مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.
مشاهده بیشتر
تبلیغات ما
مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.
مشاهده بیشترتوضیحات
Select multiple choices in a single Django model field
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-select-multiple-field-0.4.2 |
| نام | django-select-multiple-field |
| نسخه کتابخانه | 0.4.2 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Kelvin Wong |
| ایمیل نویسنده | code@kelvinwong.ca |
| آدرس صفحه اصلی | https://github.com/kelvinwong-ca/django-select-multiple-field |
| آدرس اینترنتی | https://pypi.org/project/django-select-multiple-field/ |
| مجوز | BSD |
****************************
django-select-multiple-field
****************************
Select multiple choices in a single Django model field. Use whenever you want
to store multiple choices in a field without using a many-to-many relation.
.. figure:: https://github.com/kelvinwong-ca/django-select-multiple-field/raw/master/docs/images/select_multiple_cropped.jpg
Rendered using the multiselect.js plugin for jQuery [#]_
.. [#] jquery.multi-select.js https://github.com/lou/multi-select
Quick Start
===========
.. important::
Field attribute ``max_length`` must be set to a value longer than your
longest expected encoded string
.. important::
Choices must be strings, not integers.
In your models add the select field choices normally::
# models.py
class Pizza(models.Model):
ANCHOVIES = 'a'
BLACK_OLIVES = 'b'
PEPPERONI = 'p'
MOZZARELLA = 'm'
TOPPING_CHOICES = (
(ANCHOVIES, 'Anchovies'),
(BLACK_OLIVES, 'Black olives'),
(PEPPERONI, 'Pepperoni'),
(MOZZARELLA, 'Mozzarella'),
)
toppings = SelectMultipleField(
max_length=10,
choices=TOPPING_CHOICES
)
Use a generic view or a modelform as usual. In your template you can use a regular form tag::
# template_form.html
<form action="" method="post">
{{ form.as_p }}
<input type="submit" value="Submit">
</form>
This renders the following HTML::
# create.html
<form action="" method="post">
<p>
<label for="id_toppings">Toppings:</label>
<select multiple="multiple" id="id_toppings" name="toppings"
class="select-multiple-field">
<option value="a">Anchovies</option>
<option value="b">Black olives</option>
<option value="p">Pepperoni</option>
<option value="m">Mozzarella</option>
</select>
</p>
<input type="submit" value="Submit">
</form>
Displaying stored choices
-------------------------
To display your choices, you will need to decode the field contents. This can
be accomplished with a template tag::
# templatetags/pizza_tags.py
def decode_pie(ingredients):
"""
Decode pizza pie toppings
"""
decoder = dict(Pizza.TOPPING_CHOICES)
decoded = [decoder[t] for t in ingredients]
decoded.sort()
return ', '.join(decoded)
register.filter('decode_pie', decode_pie)
In your template you need to import your tags and use them::
# details.html
{% load pizza_tags %}
{{ pizza.toppings|decode_pie }}
Encoding the choices
====================
The choices that are selected are stored as comma-delimited text. Consider a
pizza with the following toppings.
* Pepperoni
* Mozzarella
This would be stored as a character field as::
p,m
This encoded string is decoded to a Python list using functions in the codecs
module::
>>> from select_multiple_field.codecs import *
>>> encoded = 'a,b,c'
>>> decoded = decode_csv_to_list(encoded)
>>> print decoded
[u'a', u'b', u'c']
>>> print type(decoded)
<type 'list'>
The method of encoding may limit your ability to search for choices.
Sample application
==================
There is a sample application included if you downloaded the tarball. You can try it like this::
$ pwd
/home/user/teststuff/django-select-multiple-field
$ cd test_projects/django14
$ python manage.py syncdb
$ python manage.py runserver
Validating models...
0 errors found
Django version 1.4.19, using settings 'django14.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Troubleshooting
===============
Django-select-multiple-field contains two test suites. One is for the field and one is for an implementation of the field in a Django 1.4.19 project.
You can run the field tests by downloading the tarball and running 'test' in setup.py::
$ python setup.py test
You can run the Django 1.4.19 demo test in a similar manner::
$ python setup.py test_demo
Needless to say you will need to have Django 1.4.19 or later installed.
Bugs! Help!!
============
If you find any bugs in this software please report them via the Github
issue tracker [#]_ or send an email to code@kelvinwong.ca. Any serious
security bugs should be reported via email only.
.. [#] Django-select-multiple-field issue tracker https://github.com/kelvinwong-ca/django-select-multiple-field/issues
Links
=====
* https://pypi.python.org/pypi/django-select-multiple-field/
* https://github.com/kelvinwong-ca/django-select-multiple-field
Thank-you
=========
Thank-you for taking the time to evaluate this software. I appreciate
receiving feedback on your experiences using it and I welcome code
contributions and development ideas.
http://www.kelvinwong.ca/coders
نحوه نصب
نصب پکیج whl django-select-multiple-field-0.4.2:
pip install django-select-multiple-field-0.4.2.whl
نصب پکیج tar.gz django-select-multiple-field-0.4.2:
pip install django-select-multiple-field-0.4.2.tar.gz