299 lines
9.1 KiB
Python
299 lines
9.1 KiB
Python
from typing import List
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import sqlalchemy as sa
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from szurubooru.model.base import Base
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from szurubooru.model.comment import Comment
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from sqlalchemy.ext.hybrid import hybrid_property
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class PostFeature(Base):
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__tablename__ = 'post_feature'
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post_feature_id = sa.Column('id', sa.Integer, primary_key=True)
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post_id = sa.Column(
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'post_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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nullable=False,
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index=True)
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user_id = sa.Column(
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'user_id',
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sa.Integer,
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sa.ForeignKey('user.id'),
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nullable=False,
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index=True)
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time = sa.Column('time', sa.DateTime, nullable=False)
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post = sa.orm.relationship('Post') # type: Post
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user = sa.orm.relationship(
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'User',
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backref=sa.orm.backref(
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'post_features', cascade='all, delete-orphan'))
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class PostScore(Base):
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__tablename__ = 'post_score'
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post_id = sa.Column(
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'post_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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primary_key=True,
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nullable=False,
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index=True)
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user_id = sa.Column(
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'user_id',
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sa.Integer,
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sa.ForeignKey('user.id'),
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primary_key=True,
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nullable=False,
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index=True)
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time = sa.Column('time', sa.DateTime, nullable=False)
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score = sa.Column('score', sa.Integer, nullable=False)
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post = sa.orm.relationship('Post')
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user = sa.orm.relationship(
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'User',
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backref=sa.orm.backref('post_scores', cascade='all, delete-orphan'))
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class PostFavorite(Base):
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__tablename__ = 'post_favorite'
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post_id = sa.Column(
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'post_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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primary_key=True,
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nullable=False,
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index=True)
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user_id = sa.Column(
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'user_id',
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sa.Integer,
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sa.ForeignKey('user.id'),
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primary_key=True,
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nullable=False,
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index=True)
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time = sa.Column('time', sa.DateTime, nullable=False)
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post = sa.orm.relationship('Post')
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user = sa.orm.relationship(
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'User',
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backref=sa.orm.backref('post_favorites', cascade='all, delete-orphan'))
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class PostNote(Base):
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__tablename__ = 'post_note'
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post_note_id = sa.Column('id', sa.Integer, primary_key=True)
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post_id = sa.Column(
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'post_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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nullable=False,
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index=True)
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polygon = sa.Column('polygon', sa.PickleType, nullable=False)
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text = sa.Column('text', sa.UnicodeText, nullable=False)
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post = sa.orm.relationship('Post')
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class PostRelation(Base):
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__tablename__ = 'post_relation'
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parent_id = sa.Column(
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'parent_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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primary_key=True,
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nullable=False,
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index=True)
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child_id = sa.Column(
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'child_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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primary_key=True,
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nullable=False,
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index=True)
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def __init__(self, parent_id: int, child_id: int) -> None:
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self.parent_id = parent_id
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self.child_id = child_id
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class PostTag(Base):
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__tablename__ = 'post_tag'
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post_id = sa.Column(
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'post_id',
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sa.Integer,
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sa.ForeignKey('post.id'),
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primary_key=True,
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nullable=False,
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index=True)
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tag_id = sa.Column(
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'tag_id',
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sa.Integer,
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sa.ForeignKey('tag.id'),
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primary_key=True,
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nullable=False,
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index=True)
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def __init__(self, post_id: int, tag_id: int) -> None:
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self.post_id = post_id
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self.tag_id = tag_id
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class Post(Base):
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__tablename__ = 'post'
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SAFETY_SAFE = 'safe'
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SAFETY_SKETCHY = 'sketchy'
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SAFETY_UNSAFE = 'unsafe'
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TYPE_IMAGE = 'image'
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TYPE_ANIMATION = 'animation'
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TYPE_VIDEO = 'video'
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TYPE_FLASH = 'flash'
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FLAG_LOOP = 'loop'
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FLAG_SOUND = 'sound'
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# basic meta
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post_id = sa.Column('id', sa.Integer, primary_key=True)
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user_id = sa.Column(
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'user_id',
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sa.Integer,
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sa.ForeignKey('user.id', ondelete='SET NULL'),
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nullable=True,
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index=True)
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version = sa.Column('version', sa.Integer, default=1, nullable=False)
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creation_time = sa.Column('creation_time', sa.DateTime, nullable=False)
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last_edit_time = sa.Column('last_edit_time', sa.DateTime)
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safety = sa.Column('safety', sa.Unicode(32), nullable=False)
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source = sa.Column('source', sa.Unicode(200))
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flags_string = sa.Column('flags', sa.Unicode(200), default='')
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# content description
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type = sa.Column('type', sa.Unicode(32), nullable=False)
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checksum = sa.Column('checksum', sa.Unicode(64), nullable=False)
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file_size = sa.Column('file_size', sa.Integer)
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canvas_width = sa.Column('image_width', sa.Integer)
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canvas_height = sa.Column('image_height', sa.Integer)
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mime_type = sa.Column('mime-type', sa.Unicode(32), nullable=False)
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# foreign tables
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user = sa.orm.relationship('User')
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tags = sa.orm.relationship('Tag', backref='posts', secondary='post_tag')
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relations = sa.orm.relationship(
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'Post',
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secondary='post_relation',
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primaryjoin=post_id == PostRelation.parent_id,
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secondaryjoin=post_id == PostRelation.child_id, lazy='joined',
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backref='related_by')
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features = sa.orm.relationship(
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'PostFeature', cascade='all, delete-orphan', lazy='joined')
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scores = sa.orm.relationship(
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'PostScore', cascade='all, delete-orphan', lazy='joined')
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favorited_by = sa.orm.relationship(
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'PostFavorite', cascade='all, delete-orphan', lazy='joined')
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notes = sa.orm.relationship(
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'PostNote', cascade='all, delete-orphan', lazy='joined')
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comments = sa.orm.relationship('Comment', cascade='all, delete-orphan')
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# dynamic columns
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tag_count = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.count(PostTag.tag_id)])
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.where(PostTag.post_id == post_id)
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.correlate_except(PostTag))
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canvas_area = sa.orm.column_property(canvas_width * canvas_height)
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canvas_aspect_ratio = sa.orm.column_property(
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sa.sql.expression.func.cast(canvas_width, sa.Float) /
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sa.sql.expression.func.cast(canvas_height, sa.Float))
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@property
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def is_featured(self) -> bool:
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featured_post = (
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sa.orm.object_session(self)
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.query(PostFeature)
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.order_by(PostFeature.time.desc())
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.first())
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return featured_post and featured_post.post_id == self.post_id
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@hybrid_property
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def flags(self) -> List[str]:
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return sorted([x for x in self.flags_string.split(',') if x])
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@flags.setter
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def flags(self, data: List[str]) -> None:
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self.flags_string = ','.join([x for x in data if x])
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score = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.coalesce(
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sa.sql.expression.func.sum(PostScore.score), 0)])
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.where(PostScore.post_id == post_id)
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.correlate_except(PostScore))
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favorite_count = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.count(PostFavorite.post_id)])
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.where(PostFavorite.post_id == post_id)
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.correlate_except(PostFavorite))
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last_favorite_time = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.max(PostFavorite.time)])
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.where(PostFavorite.post_id == post_id)
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.correlate_except(PostFavorite))
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feature_count = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.count(PostFeature.post_id)])
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.where(PostFeature.post_id == post_id)
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.correlate_except(PostFeature))
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last_feature_time = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.max(PostFeature.time)])
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.where(PostFeature.post_id == post_id)
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.correlate_except(PostFeature))
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comment_count = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.count(Comment.post_id)])
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.where(Comment.post_id == post_id)
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.correlate_except(Comment))
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last_comment_creation_time = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.max(Comment.creation_time)])
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.where(Comment.post_id == post_id)
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.correlate_except(Comment))
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last_comment_edit_time = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.max(Comment.last_edit_time)])
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.where(Comment.post_id == post_id)
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.correlate_except(Comment))
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note_count = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.count(PostNote.post_id)])
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.where(PostNote.post_id == post_id)
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.correlate_except(PostNote))
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relation_count = sa.orm.column_property(
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sa.sql.expression.select(
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[sa.sql.expression.func.count(PostRelation.child_id)])
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.where(
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(PostRelation.parent_id == post_id) |
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(PostRelation.child_id == post_id))
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.correlate_except(PostRelation))
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__mapper_args__ = {
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'version_id_col': version,
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'version_id_generator': False,
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}
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