ArchiveBox/archivebox/core/models.py
2020-10-31 07:57:11 -04:00

150 lines
4.3 KiB
Python

__package__ = 'archivebox.core'
import uuid
from django.db import models, transaction
from django.utils.functional import cached_property
from django.utils.text import slugify
from ..util import parse_date
from ..index.schema import Link
class Tag(models.Model):
"""
Based on django-taggit model
"""
name = models.CharField(verbose_name="name", unique=True, blank=False, max_length=100)
slug = models.SlugField(verbose_name="slug", unique=True, max_length=100)
class Meta:
verbose_name = "Tag"
verbose_name_plural = "Tags"
def __str__(self):
return self.name
def slugify(self, tag, i=None):
slug = slugify(tag)
if i is not None:
slug += "_%d" % i
return slug
def save(self, *args, **kwargs):
if self._state.adding and not self.slug:
self.slug = self.slugify(self.name)
with transaction.atomic():
slugs = set(
type(self)
._default_manager.filter(slug__startswith=self.slug)
.values_list("slug", flat=True)
)
i = None
while True:
slug = self.slugify(self.name, i)
if slug not in slugs:
self.slug = slug
return super().save(*args, **kwargs)
i = 1 if i is None else i+1
else:
return super().save(*args, **kwargs)
class Snapshot(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
url = models.URLField(unique=True)
timestamp = models.CharField(max_length=32, unique=True, db_index=True)
title = models.CharField(max_length=128, null=True, blank=True, db_index=True)
added = models.DateTimeField(auto_now_add=True, db_index=True)
updated = models.DateTimeField(null=True, blank=True, db_index=True)
tags = models.ManyToManyField(Tag)
keys = ('url', 'timestamp', 'title', 'tags', 'updated')
def __repr__(self) -> str:
title = self.title or '-'
return f'[{self.timestamp}] {self.url[:64]} ({title[:64]})'
def __str__(self) -> str:
title = self.title or '-'
return f'[{self.timestamp}] {self.url[:64]} ({title[:64]})'
@classmethod
def from_json(cls, info: dict):
info = {k: v for k, v in info.items() if k in cls.keys}
return cls(**info)
def as_json(self, *args) -> dict:
args = args or self.keys
return {
key: getattr(self, key)
if key != 'tags' else self.tags_str()
for key in args
}
def as_link(self) -> Link:
return Link.from_json(self.as_json())
def as_link_with_details(self) -> Link:
from ..index import load_link_details
return load_link_details(self.as_link())
def tags_str(self) -> str:
return ','.join(self.tags.order_by('name').values_list('name', flat=True))
@cached_property
def bookmarked(self):
return parse_date(self.timestamp)
@cached_property
def is_archived(self):
return self.as_link().is_archived
@cached_property
def num_outputs(self):
return self.as_link().num_outputs
@cached_property
def url_hash(self):
return self.as_link().url_hash
@cached_property
def base_url(self):
return self.as_link().base_url
@cached_property
def link_dir(self):
return self.as_link().link_dir
@cached_property
def archive_path(self):
return self.as_link().archive_path
@cached_property
def archive_size(self):
return self.as_link().archive_size
@cached_property
def history(self):
from ..index import load_link_details
return load_link_details(self.as_link()).history
@cached_property
def latest_title(self):
if ('title' in self.history
and self.history['title']
and (self.history['title'][-1].status == 'succeeded')
and self.history['title'][-1].output.strip()):
return self.history['title'][-1].output.strip()
return None
def save_tags(self, tags=[]):
tags_id = []
for tag in tags:
tags_id.append(Tag.objects.get_or_create(name=tag)[0].id)
self.tags.clear()
self.tags.add(*tags_id)