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django-oak-0.1.2
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مشاهده بیشترتوضیحات
Rapid prototyping for views and models in django.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-oak-0.1.2 |
| نام | django-oak |
| نسخه کتابخانه | 0.1.2 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Thomas A. Weholt |
| ایمیل نویسنده | thomas@weholt.org |
| آدرس صفحه اصلی | https://github.com/weholt/django-oak |
| آدرس اینترنتی | https://pypi.org/project/django-oak/ |
| مجوز | BSD License |
oak
===
Rapid prototyping for views, templates and models in django.
Version : 0.1.1
Status : alpha / proof-of-concept
Code @ : http://github.com/weholt/django-oak/
Contact : thomas@weholt.org
Introduction
------------
Oak is a tool to help you get a prototype of a site up and running very fast. It takes care of configuring urls,
creating views and provide a basic set of templates to enable creation, deletion and removal of objects.
It might not be production-ready and serves more as a proof-of-concept project at the moment. Comments are very welcome.
Why?
----
- *DRY*. I found myself re-creating the same templates, views and urls over and over for models in my apps. My templates for
create, update and delete was almost identical for 9 of 10 models. My urlpatterns followed the same pattern. And my views.
- I wanted to build on-top of class based generic views and easily switch to full CBGV if need be.
Installation
------------
1. `pip install django-oak`
2. Add `oak` to INSTALLED_APPS in settings.py - after all other apps to get correct template resolving.
3. `python manage.py migrate` and `python manage.py runserver`
Requirements
------------
Oak assumes use of a few patterns:
- urls will be created as:
- create: '/app_label/model_name/create/$'
- update: '/app_label/model_name/update/(?P<pk>\d+)/$'
- delete: '/app_label/model_name/delete/(?P<pk>\d+)/$'
- list: '/app_label/model_name/list/$'
- detail: '/app_label/model_name/(?P<pk>\d+)/$'
- names of urls will be:
- create: 'app_label-model_name-create'
- update: 'app_label-model_name-update'
- delete: 'app_label-model_name-delete'
- list: 'app_label-model_name-list'
- detail: 'app_label-model_name'
- models must implement the 'get_absolute_url'-method
A simple example
----------------
*NB! This alpha-release of oak assumes the user is logged in all views related to creation, updates and deletion of objects.*
We want to re-create the polls app from the django tutorial (with minor changes to illustrate some features of oak).
Create a new django project, create an app called polls and the following models to your polls/models.py:
from django.core.urlresolvers import reverse_lazy
from django.contrib.auth.models import User
from django.db import models
from oak.decorators import oakify
@oakify.model()
class Question(models.Model):
creator = models.ForeignKey(User, related_name="questions")
question_text = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')
def __str__(self):
return self.question_text
def get_absolute_url(self):
return reverse_lazy('polls-question', args=[self.id])
@oakify.model()
class Choice(models.Model):
question = models.ForeignKey(Question, related_name="choices")
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)
def __str__(self):
return self.choice_text
def get_absolute_url(self):
return reverse_lazy('polls-choice', args=[self.id])
A few things to notice:
- `from oak.decorators import oakify` : this is the oak decorator registering the model and triggers the creation
of required views and urls.
- `@oakify.model()`: the actual decoration of our models.
- both models implement `the get_absolute_url` method and return a reversed url using the patterns described above.
To get the generated urls into our project, modify your urls.py file to look like this:
from django.conf.urls import patterns, include, url
from django.contrib import admin
import oak
urlpatterns = patterns('',
url(r'^admin/', include(admin.site.urls)),
url(r'^', include('oak.urls')),
)
Notice that this will make every url automatically generated by oak available at root level. Finally add oak and polls
to your installed apps in settings.py, always adding oak *after* everything else:
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'polls',
'oak',
)
Now do the `python manage.py migrate` and `python manage.py runserver` to test it. If you type in any non-existing url,
you'll see the generated urls in the debug page:
^admin/
^polls/choice/(?P<pk>\d+)/ [name='polls-choice']
^polls/choice/create/$ [name='polls-choice-create']
^polls/choice/update/(?P<pk>\d+)/$ [name='polls-choice-update']
^polls/choice/delete/(?P<pk>\d+)/$ [name='polls-choice-delete']
^polls/choice/list/$ [name='polls-choice-list']
^polls/question/(?P<pk>\d+)/ [name='polls-question']
^polls/question/create/$ [name='polls-question-create']
^polls/question/update/(?P<pk>\d+)/$ [name='polls-question-update']
^polls/question/delete/(?P<pk>\d+)/$ [name='polls-question-delete']
^polls/question/list/$ [name='polls-question-list']
If you go to `/polls/question/list/` you'll be greeted with a page telling you that templates are missing - this is by design.
You'll have to implement the templates for list and detail views your self. Now create `polls/templates/polls/question_list.html`
with this content:
{% extends 'base.html' %}
{% block content %}
<a href="{% url 'polls-question-create' %}">Create</a>
<ul>
{% for question in object_list %}
<li><a href="{{ question.get_absolute_url }}" >{{ question }}</a></li>
{% endfor %}
</ul>
<a href="{% url 'polls-choice-create' %}">Create choice</a>
{% endblock %}
Create `polls/templates/polls/question_detail.html` with this content:
{% extends 'base.html' %}
{% block content %}
<h1>Question #{{object.id}}: {{object.question_text}}</h1>
<a href="{% url 'polls-question-update' object.id %}">Update</a>
<a href="{% url 'polls-question-delete' object.id %}">Delete</a>
{% endblock %}
*NB! If you get any errors, try going to `/admin/` and log in before proceeding further.*
Now you should be able to create, update, delete, list and view details of questions.
A more advanced example
-----------------------
On of the changes of our models compared to the standard polls app is the addition of a creator. We want this to be set
to the user creating the questions and should not have to be entered by the user at all. Modify your models.py file and
remove the decorations of the Question model:
@oakify.model() <- Remove this line
class Question(models.Model):
If you enter an invalid url and look at the available urlconfigurations you'll notice everyting related to Question is gone.
In polls/views.py add:
import datetime
from django.http import HttpResponseRedirect
from django.views.generic import ListView, DetailView
import oak
from .models import *
@oak.decorators.oakify.view()
class QuestionView(oak.views.BaseCrudView):
model = Question
fields = ('question_text',)
def form_valid(self, form):
self.object = form.save(commit=False)
# only set the following values at creation, not on updates
if not self.object.pk:
self.object.creator = self.request.user
self.object.pub_date = datetime.date.today()
self.object.save()
return HttpResponseRedirect(self.target_url or self.get_success_url())
def get_success_url(self):
return reverse_lazy('polls-question-list')
@oak.decorators.oakify.view()
class QuestionListView(ListView):
model = Question
queryset = Question.objects.all()
@oak.decorators.oakify.view()
class QuestionDetailView(DetailView):
model = Question
The first view subclasses BaseCrudView and it will handle create, update and delete operations related to your model.
Implementing `form_valid` method handles setting the creator-field of a question to the user object of the logged in user.
It also sets the pub_date-field to today.
The two next views handles the list and detail views.
Adding your own templates
-------------------------
Oak will look for matching templates in your apps template folders before defaulting to its own base templates. So to add
your own templates simply create a folderstructure like `templates/app_label/model_name/<operation name>.html` in your app folder.
Change `<operation name>` to one of the following; create, update, delete, detail or list.
License
-------
Oak is released under a BSD license.
نحوه نصب
نصب پکیج whl django-oak-0.1.2:
pip install django-oak-0.1.2.whl
نصب پکیج tar.gz django-oak-0.1.2:
pip install django-oak-0.1.2.tar.gz