symposion_app/symposion/cms/models.py

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from datetime import datetime
from django.db import models
from django.utils.translation import ugettext_lazy as _
from markitup.fields import MarkupField
from taggit.managers import TaggableManager
from mptt.models import MPTTModel, TreeForeignKey
from mptt.utils import drilldown_tree_for_node
import reversion
class ContentBase(models.Model):
STATUS_CHOICES = (
(1, _("Draft")),
(2, _("Public")),
)
title = models.CharField(max_length=100)
slug = models.CharField(max_length=100, blank=True, null=True)
body = MarkupField()
tags = TaggableManager(blank=True)
status = models.IntegerField(choices=STATUS_CHOICES, default=2)
published = models.DateTimeField(default=datetime.now)
created = models.DateTimeField(editable=False, default=datetime.now)
updated = models.DateTimeField(editable=False, default=datetime.now)
class Meta:
abstract = True
class Page(MPTTModel, ContentBase):
parent = TreeForeignKey("self", null=True, blank=True, related_name="children")
ordering = models.PositiveIntegerField(default=1)
path = models.TextField(blank=True, editable=False)
def __unicode__(self):
return self.title
def save(self, calculate_path=True, *args, **kwargs):
super(Page, self).save(*args, **kwargs)
if calculate_path:
self.calculate_path()
def calculate_path(self):
self.path = ""
for page in drilldown_tree_for_node(self):
if page == self:
self.path += page.slug
break
else:
self.path += "%s/" % page.slug
self.save(calculate_path=False)
class MPTTMeta:
order_insertion_by = ["ordering", "title"]
reversion.register(Page)