moviewyrm/fedireads/models/status.py
2020-03-30 15:30:06 -07:00

146 lines
5 KiB
Python

''' models for storing different kinds of Activities '''
from django.utils import timezone
from django.core.validators import MaxValueValidator, MinValueValidator
from django.db import models
from model_utils.managers import InheritanceManager
import urllib.parse
from fedireads.utils.models import FedireadsModel
class Status(FedireadsModel):
''' any post, like a reply to a review, etc '''
remote_id = models.CharField(max_length=255, unique=True, null=True)
user = models.ForeignKey('User', on_delete=models.PROTECT)
status_type = models.CharField(max_length=255, default='Note')
content = models.TextField(blank=True, null=True)
mention_users = models.ManyToManyField('User', related_name='mention_user')
mention_books = models.ManyToManyField('Edition', related_name='mention_book')
activity_type = models.CharField(max_length=255, default='Note')
local = models.BooleanField(default=True)
privacy = models.CharField(max_length=255, default='public')
sensitive = models.BooleanField(default=False)
# the created date can't be this, because of receiving federated posts
published_date = models.DateTimeField(default=timezone.now)
favorites = models.ManyToManyField(
'User',
symmetrical=False,
through='Favorite',
through_fields=('status', 'user'),
related_name='user_favorites'
)
reply_parent = models.ForeignKey(
'self',
null=True,
on_delete=models.PROTECT
)
objects = InheritanceManager()
@property
def absolute_id(self):
''' constructs the absolute reference to any db object '''
if self.remote_id:
return self.remote_id
base_path = self.user.absolute_id
model_name = type(self).__name__.lower()
return '%s/%s/%d' % (base_path, model_name, self.id)
class Comment(Status):
''' like a review but without a rating and transient '''
name = models.CharField(max_length=255)
book = models.ForeignKey('Edition', on_delete=models.PROTECT)
def save(self, *args, **kwargs):
self.status_type = 'Comment'
self.activity_type = 'Article'
super().save(*args, **kwargs)
class Review(Status):
''' a book review '''
name = models.CharField(max_length=255)
book = models.ForeignKey('Edition', on_delete=models.PROTECT)
rating = models.IntegerField(
default=0,
validators=[MinValueValidator(0), MaxValueValidator(5)]
)
def save(self, *args, **kwargs):
self.status_type = 'Review'
self.activity_type = 'Article'
super().save(*args, **kwargs)
class Favorite(FedireadsModel):
''' fav'ing a post '''
user = models.ForeignKey('User', on_delete=models.PROTECT)
status = models.ForeignKey('Status', on_delete=models.PROTECT)
remote_id = models.CharField(max_length=255, unique=True, null=True)
@property
def absolute_id(self):
''' constructs the absolute reference to any db object '''
if self.remote_id:
return self.remote_id
return super().absolute_id
class Meta:
unique_together = ('user', 'status')
class Boost(Status):
''' boost'ing a post '''
boosted_status = models.ForeignKey(
'Status',
on_delete=models.PROTECT,
related_name="boosters")
def save(self, *args, **kwargs):
self.status_type = 'Boost'
self.activity_type = 'Announce'
super().save(*args, **kwargs)
# This constraint can't work as it would cross tables.
# class Meta:
# unique_together = ('user', 'boosted_status')
class Tag(FedireadsModel):
''' freeform tags for books '''
user = models.ForeignKey('User', on_delete=models.PROTECT)
book = models.ForeignKey('Edition', on_delete=models.PROTECT)
name = models.CharField(max_length=100)
identifier = models.CharField(max_length=100)
def save(self, *args, **kwargs):
if not self.id:
# add identifiers to new tags
self.identifier = urllib.parse.quote_plus(self.name)
super().save(*args, **kwargs)
class Meta:
unique_together = ('user', 'book', 'name')
NotificationType = models.TextChoices(
'NotificationType', 'FAVORITE REPLY TAG FOLLOW FOLLOW_REQUEST BOOST')
class Notification(FedireadsModel):
''' you've been tagged, liked, followed, etc '''
user = models.ForeignKey('User', on_delete=models.PROTECT)
related_book = models.ForeignKey(
'Edition', on_delete=models.PROTECT, null=True)
related_user = models.ForeignKey(
'User',
on_delete=models.PROTECT, null=True, related_name='related_user')
related_status = models.ForeignKey(
'Status', on_delete=models.PROTECT, null=True)
read = models.BooleanField(default=False)
notification_type = models.CharField(
max_length=255, choices=NotificationType.choices)
class Meta:
constraints = [
models.CheckConstraint(
check=models.Q(notification_type__in=NotificationType.values),
name="notification_type_valid",
)
]