dynamicweb/stored_messages/models.py

58 lines
1.9 KiB
Python

from __future__ import unicode_literals
from django.db import models
from django.conf import settings
from django.utils import timezone
from django.utils.translation import gettext_lazy as _
from .settings import stored_messages_settings
class Message(models.Model):
"""
This model represents a message on the database. Fields are the same as in
`contrib.messages`
"""
message = models.TextField()
level = models.IntegerField()
tags = models.TextField()
url = models.URLField(null=True, blank=True)
date = models.DateTimeField(default=timezone.now)
def __str__(self):
return self.message
class MessageArchive(models.Model):
"""
This model holds all the messages users received. Corresponding
database table will grow indefinitely depending on messages traffic.
"""
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
message = models.ForeignKey(Message, on_delete=models.CASCADE)
def __str__(self):
return "[%s] %s" % (self.user, self.message)
class Inbox(models.Model):
"""
Inbox messages are stored in this model until users read them. Once read,
inbox messages are deleted. Inbox messages have an expire time, after
that they could be removed by a proper django command. We do not expect
database table corresponding to this model to grow much.
"""
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
message = models.ForeignKey(Message, on_delete=models.CASCADE)
class Meta:
verbose_name_plural = _('inboxes')
def expired(self):
expiration_date = self.message.date + timezone.timedelta(
days=stored_messages_settings.INBOX_EXPIRE_DAYS)
return expiration_date <= timezone.now()
expired.boolean = True # show a nifty icon in the admin
def __str__(self):
return "[%s] %s" % (self.user, self.message)