NDOJ/judge/models/interface.py

138 lines
4.7 KiB
Python

import re
from django.core.exceptions import ValidationError
from django.db import models
from django.urls import reverse
from django.utils import timezone
from django.utils.translation import gettext_lazy as _
from django.utils.functional import cached_property
from django.contrib.contenttypes.fields import GenericRelation
from mptt.fields import TreeForeignKey
from mptt.models import MPTTModel
from judge.models.profile import Organization, Profile
from judge.models.pagevote import PageVotable
from judge.models.bookmark import Bookmarkable
__all__ = ["MiscConfig", "validate_regex", "NavigationBar", "BlogPost"]
class MiscConfig(models.Model):
key = models.CharField(max_length=30, db_index=True)
value = models.TextField(blank=True)
def __str__(self):
return self.key
class Meta:
verbose_name = _("configuration item")
verbose_name_plural = _("miscellaneous configuration")
def validate_regex(regex):
try:
re.compile(regex, re.VERBOSE)
except re.error as e:
raise ValidationError("Invalid regex: %s" % e.message)
class NavigationBar(MPTTModel):
class Meta:
verbose_name = _("navigation item")
verbose_name_plural = _("navigation bar")
class MPTTMeta:
order_insertion_by = ["order"]
order = models.PositiveIntegerField(db_index=True, verbose_name=_("order"))
key = models.CharField(max_length=10, unique=True, verbose_name=_("identifier"))
label = models.CharField(max_length=20, verbose_name=_("label"))
path = models.CharField(max_length=255, verbose_name=_("link path"))
regex = models.TextField(
verbose_name=_("highlight regex"), validators=[validate_regex]
)
parent = TreeForeignKey(
"self",
verbose_name=_("parent item"),
null=True,
blank=True,
related_name="children",
on_delete=models.CASCADE,
)
def __str__(self):
return self.label
@property
def pattern(self, cache={}):
# A cache with a bad policy is an alias for memory leak
# Thankfully, there will never be too many regexes to cache.
if self.regex in cache:
return cache[self.regex]
else:
pattern = cache[self.regex] = re.compile(self.regex, re.VERBOSE)
return pattern
class BlogPost(models.Model, PageVotable, Bookmarkable):
title = models.CharField(verbose_name=_("post title"), max_length=100)
authors = models.ManyToManyField(Profile, verbose_name=_("authors"), blank=True)
slug = models.SlugField(verbose_name=_("slug"))
visible = models.BooleanField(verbose_name=_("public visibility"), default=False)
sticky = models.BooleanField(verbose_name=_("sticky"), default=False)
publish_on = models.DateTimeField(verbose_name=_("publish after"))
content = models.TextField(verbose_name=_("post content"))
summary = models.TextField(verbose_name=_("post summary"), blank=True)
og_image = models.CharField(
verbose_name=_("openGraph image"), default="", max_length=150, blank=True
)
organizations = models.ManyToManyField(
Organization,
blank=True,
verbose_name=_("organizations"),
help_text=_("If private, only these organizations may see the blog post."),
)
is_organization_private = models.BooleanField(
verbose_name=_("private to organizations"), default=False
)
comments = GenericRelation("Comment")
pagevote = GenericRelation("PageVote")
bookmark = GenericRelation("BookMark")
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse("blog_post", args=(self.id, self.slug))
def can_see(self, user):
if self.visible and self.publish_on <= timezone.now():
if not self.is_organization_private:
return True
if (
user.is_authenticated
and self.organizations.filter(
id__in=user.profile.organizations.all()
).exists()
):
return True
if user.has_perm("judge.edit_all_post"):
return True
return (
user.is_authenticated and self.authors.filter(id=user.profile.id).exists()
)
def is_editable_by(self, user):
if not user.is_authenticated:
return False
if user.has_perm("judge.edit_all_post"):
return True
return (
user.has_perm("judge.change_blogpost")
and self.authors.filter(id=user.profile.id).exists()
)
class Meta:
permissions = (("edit_all_post", _("Edit all posts")),)
verbose_name = _("blog post")
verbose_name_plural = _("blog posts")