mirror of
https://github.com/lrnselfreliance/wrolpi.git
synced 2026-10-26 19:01:39 -04:00
112 lines
3.8 KiB
Python
112 lines
3.8 KiB
Python
from typing import Generator
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from sqlalchemy import Column, Integer, String, ForeignKey
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from sqlalchemy.orm import relationship
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from sqlalchemy.orm.collections import InstrumentedList
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from wrolpi.common import ModelHelper, Base
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from wrolpi.dates import TZDateTime
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from wrolpi.media_path import MediaPathType
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class Archive(Base, ModelHelper):
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__tablename__ = 'archive'
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id = Column(Integer, primary_key=True)
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url_id = Column(Integer, ForeignKey('url.id', ondelete='cascade'))
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url = relationship('URL', primaryjoin='Archive.url_id==URL.id')
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domain_id = Column(Integer, ForeignKey('domains.id'))
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domain = relationship('Domain', primaryjoin='Archive.domain_id==Domain.id')
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singlefile_path = Column(MediaPathType)
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readability_path = Column(MediaPathType)
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readability_json_path = Column(MediaPathType)
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readability_txt_path = Column(MediaPathType)
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screenshot_path = Column(MediaPathType)
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title = Column(String)
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archive_datetime = Column(TZDateTime)
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status = Column(String)
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def __repr__(self):
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return f'<Archive id={self.id} url_id={self.url_id} singlefile={self.singlefile_path}>'
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def my_paths(self) -> Generator:
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if self.singlefile_path:
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yield self.singlefile_path.path
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if self.readability_path:
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yield self.readability_path.path
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if self.readability_json_path:
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yield self.readability_json_path.path
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if self.readability_txt_path:
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yield self.readability_txt_path.path
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if self.screenshot_path:
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yield self.screenshot_path.path
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def unlink(self):
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"""
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Remove any files in this archive.
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"""
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# Don't fail if a file is missing, it could have been deleted manually.
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for path in self.my_paths():
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path.unlink(missing_ok=True)
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def __gt__(self, other) -> bool:
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"""
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Compare Archives according to their archive datetime.
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"""
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if not isinstance(other, Archive):
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raise ValueError(f'Cannot compare {type(other)} to Archive!')
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return self.archive_datetime > other.archive_datetime
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class URL(Base, ModelHelper):
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__tablename__ = 'url'
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id = Column(Integer, primary_key=True)
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url = Column(String, unique=True)
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archives: InstrumentedList = relationship('Archive', primaryjoin='URL.id==Archive.url_id')
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latest_id = Column(Integer, ForeignKey('archive.id'))
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latest = relationship('Archive', primaryjoin='URL.latest_id==Archive.id')
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latest_datetime = Column(TZDateTime)
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domain_id = Column(Integer, ForeignKey('domains.id'))
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domain = relationship('Domain', primaryjoin='URL.domain_id==Domain.id')
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def __repr__(self):
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return f'<URL id={self.id} url={self.url}>'
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def dict(self) -> dict:
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d = super().dict()
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d['latest'] = self.latest.dict() if self.latest else None
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d['domain'] = self.domain.dict()
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d['archives'] = [i.dict() for i in self.archives]
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return d
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def update_latest(self):
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"""
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Set `latest` to the most recent Archive of this URL whose `singlefile` exists.
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"""
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self.latest_id = None
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archives = filter(lambda i: i.singlefile_path and i.singlefile_path.path.exists(), self.archives)
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try:
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latest: Archive = max(archives)
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if latest:
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self.latest_id = latest.id
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except ValueError:
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# No archives exist!
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pass
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class Domain(Base, ModelHelper):
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__tablename__ = 'domains' # plural to avoid conflict
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id = Column(Integer, primary_key=True)
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domain = Column(String)
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directory = Column(MediaPathType)
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urls: InstrumentedList = relationship('URL', primaryjoin='Domain.id==URL.domain_id', order_by='URL.latest_datetime')
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def __repr__(self):
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return f'<Domain id={self.id} domain={self.domain} directory={self.directory}>'
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