society-self-service/sspromotions/models.py

#    Society Self-Service
#    Copyright © 2018-2019  Yingtong Li (RunasSudo)
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <https://www.gnu.org/licenses/>.

from django.contrib.auth.models import User

from django.conf import settings
from django.db import models
from jsonfield import JSONField

class Group(models.Model):
	name = models.CharField(max_length=100)
	subscribable = models.BooleanField()
	order = models.IntegerField(null=True, blank=True)
	
	managers = JSONField(default=[], blank=True)
	
	def __str__(self):
		return self.name
	
	def can_user_access(self, user):
		if user.is_superuser:
			return True
		if user.email in self.managers:
			return True
		for email in self.managers:
			manager = User.objects.get(email=email)
			if user.email in manager.delegates:
				return True
		return False
	
	class Meta:
		ordering = ['order', 'id']

class BulletinItem(models.Model):
	author = models.ForeignKey(User, on_delete=models.CASCADE)
	group = models.ForeignKey(Group, on_delete=models.CASCADE)
	also_limit = JSONField(default=[])
	title = models.CharField(max_length=100)
	link = models.CharField(max_length=100, null=True)
	image = models.ImageField(upload_to='promo_uploads/%Y/%m/%d/', null=True)
	content = models.TextField()
	date = models.DateField()
	
	def can_user_access(self, user):
		if self.group.can_user_access(user):
			return True
		if user == self.author:
			return True
		if user.email in self.author.delegates:
			return True
		return False

class CalendarItem(models.Model):
	group = models.ForeignKey(Group, on_delete=models.CASCADE)
	also_limit = JSONField(default=[])
	title = models.CharField(max_length=100)
	link = models.CharField(max_length=100, null=True)
	date = models.DateField()
	
	class Meta:
		ordering = ['date', 'title', 'id']