[Django]-Django, how to do CRUD with django-mptt?

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Simple CRUD application with MPTT models and class-based generic views (Django 1.4 The function-based implementation has been deprecated).

Let’s begin

urls.py

from django.conf.urls.defaults import patterns, include, url
from django.views.generic import DetailView, ListView, CreateView, UpdateView
from genre.models import Genre

urlpatterns = patterns('',
    url(r'detail/(?P<pk>\d+)', DetailView.as_view(model=Genre), name="genre_detail",),
    url(r'update/(?P<pk>\d+)', UpdateView.as_view(model=Genre), name="genre_update",),
    url(r'create', CreateView.as_view(model=Genre), name="genre_create",),
    url(r'list', ListView.as_view(model=Genre), name="genre_list",),
)

models.py

from django.core.urlresolvers import reverse
from django.db import models
from mptt.models import MPTTModel


class Genre(MPTTModel):
    name = models.CharField(max_length=50 , unique=True)
    parent = models.ForeignKey('self' , null=True , blank=True , related_name='children')

    def get_absolute_url(self):
        return reverse('genre_detail', kwargs={'pk': self.pk, })

    class MPTTMeta:
        order_insertion_by = ['name']

templates/genre_detail.html

<html>
<body>

<div>Object: {{ object }}</div>
<div>Object's name: {{ object.name }}</div>
<div>Object's parent: {{ object.parent }}</div>

</body>
</html>

templates/genre_form.html

<html>
<body>

<form action="" method="post">
{% csrf_token %}
{{ form.as_ul }}

<button>save</button>
</form>
</body>
</html>

templates/genre_list.html

{% load mptt_tags %}
<html>
<body>
<ul class="root">
    {% recursetree object_list %}
        <li>
            {{ node.name }}
            {% if not node.is_leaf_node %}
                <ul class="children">
                    {{ children }}
                </ul>
            {% endif %}
        </li>
    {% endrecursetree %}
</ul>
</body>
</html>

and that’s it.

I had some spare time today and shared this project on github https://github.com/kaygorodov/simple-crud-mptt.

How can I define my own class-based view?

genre/views.py

from django.view.generic import UpdateView
class MyCustomUpdateView(UpdateView):
    model = Genre

    def get_form_kwargs(self):
        """
        Returns the keyword arguments for instanciating the form.
        """
        kwargs = super(MyCustomUpdateView, self).get_form_kwargs()
        kwargs.update({'my_first_param_to_init_form': 1,
                      'my_second_param_to_init_form': 2,
        })
        return kwargs

genre/urls.py

url(r'update/(?P<pk>\d+)', MyCustomUpdateView.as_view(), name="genre_update",),
👤Andrei Kaigorodov

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