132 lines
3.9 KiB
Python
132 lines
3.9 KiB
Python
import re
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from functools import cached_property
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import html2text
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import markdown
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from django.contrib.auth.models import AbstractUser
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from django.contrib.contenttypes.models import ContentType
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from django.db import models
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from django.http import HttpRequest
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from django.template.defaultfilters import slugify
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from django.urls import reverse
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from django.utils import timezone
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from markdown.extensions.codehilite import CodeHiliteExtension
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from articles.markdown import LazyLoadingImageExtension
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from articles.utils import build_full_absolute_url
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class User(AbstractUser):
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pass
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class ArticleManager(models.Manager):
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def get_queryset(self):
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return super().get_queryset().filter(page__isnull=True)
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class AdminUrlMixin:
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def get_admin_url(self):
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content_type = ContentType.objects.get_for_model(self.__class__)
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return reverse(
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"admin:%s_%s_change" % (content_type.app_label, content_type.model),
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args=(self.id,),
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)
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class Article(AdminUrlMixin, models.Model):
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DRAFT = "draft"
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PUBLISHED = "published"
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STATUS_CHOICES = [
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(DRAFT, "Draft"),
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(PUBLISHED, "Published"),
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]
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title = models.CharField(max_length=255)
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content = models.TextField()
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status = models.CharField(max_length=15, choices=STATUS_CHOICES, default=DRAFT)
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published_at = models.DateTimeField(null=True, blank=True)
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created_at = models.DateTimeField(auto_now_add=True)
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updated_at = models.DateTimeField(auto_now=True)
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author = models.ForeignKey(User, on_delete=models.PROTECT, default=1)
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views_count = models.IntegerField(default=0)
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slug = models.SlugField(unique=True, max_length=255)
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keywords = models.CharField(max_length=255, blank=True)
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objects = models.Manager()
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without_pages = ArticleManager()
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class Meta:
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ordering = ["-published_at"]
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def __str__(self):
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type_ = "Article"
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if hasattr(self, "page"):
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type_ = "Page"
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return f"{self.title} ({type_})"
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def get_absolute_url(self):
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return reverse("article-detail", kwargs={"slug": self.slug})
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def get_full_absolute_url(self, request: HttpRequest = None):
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url = self.get_absolute_url()
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return build_full_absolute_url(request, url)
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def get_abstract(self):
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html = self.get_formatted_content()
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return html.split("<!--more-->")[0]
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@cached_property
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def get_description(self):
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html = self.get_formatted_content()
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converter = html2text.HTML2Text()
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converter.ignore_images = True
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converter.ignore_links = True
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converter.ignore_tables = True
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converter.ignore_emphasis = True
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text = converter.handle(html)
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total_length = 0
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text_result = []
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for word in text.split():
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if len(word) + 1 + total_length > 160:
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break
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text_result.append(word)
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total_length += len(word) + 1
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return " ".join(text_result) + "..."
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def get_formatted_content(self):
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md = markdown.Markdown(
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extensions=[
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"extra",
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CodeHiliteExtension(linenums=False),
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LazyLoadingImageExtension(),
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]
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)
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content = self.content
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content = re.sub(r"(\s)#(\w+)", r"\1\#\2", content)
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return md.convert(content)
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def publish(self):
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if not self.published_at:
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self.published_at = timezone.now()
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self.status = self.PUBLISHED
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self.save()
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return self
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def unpublish(self):
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self.published_at = None
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self.status = self.DRAFT
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self.save()
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return self
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def save(self, *args, **kwargs):
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if not self.slug:
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self.slug = slugify(self.title)
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return super().save(*args, **kwargs)
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class Page(Article):
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objects = models.Manager()
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position = models.IntegerField(default=0)
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class Meta:
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ordering = ["position", "-published_at"]
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