NDOJ/judge/models/interface.py
2020-01-21 15:35:58 +09:00

94 lines
3.3 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 mptt.fields import TreeForeignKey
from mptt.models import MPTTModel
from judge.models.profile import Profile
__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):
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)
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():
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()
class Meta:
permissions = (
('edit_all_post', _('Edit all posts')),
)
verbose_name = _('blog post')
verbose_name_plural = _('blog posts')