108 lines
3.4 KiB
Python
108 lines
3.4 KiB
Python
import pickle
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from typing import TYPE_CHECKING
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from sqlalchemy import ForeignKey, Table, Column, UniqueConstraint, Index
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from models.base import BaseModel
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if TYPE_CHECKING:
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from models import Project, BaseModel, Card
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project_attribute = Table(
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'project_attribute',
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BaseModel.metadata,
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Column('project_id', ForeignKey('projects.id')),
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Column('attribute_id', ForeignKey('attributes.id')),
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)
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class AttributeType(BaseModel):
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__tablename__ = 'attribute_types'
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id: Mapped[int] = mapped_column(primary_key=True)
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type: Mapped[str] = mapped_column(nullable=False, unique=True)
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name: Mapped[str] = mapped_column(nullable=False, unique=True)
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is_deleted: Mapped[bool] = mapped_column(default=False)
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attributes: Mapped['Attribute'] = relationship(
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'Attribute',
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back_populates='type',
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lazy='noload',
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)
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class Attribute(BaseModel):
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__tablename__ = 'attributes'
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id: Mapped[int] = mapped_column(primary_key=True)
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label: Mapped[str] = mapped_column(nullable=False)
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name: Mapped[str] = mapped_column(nullable=False, index=True)
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is_applicable_to_group: Mapped[bool] = mapped_column(
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default=False,
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comment='Применять ли изменения атрибута карточки ко всем карточкам в группе',
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)
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is_shown_on_dashboard: Mapped[bool] = mapped_column(
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default=False,
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server_default='0',
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comment='Отображается ли атрибут на дашборде',
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)
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is_nullable: Mapped[bool] = mapped_column(default=False, nullable=False)
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default_value: Mapped[bytes] = mapped_column(nullable=True)
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is_deleted: Mapped[bool] = mapped_column(default=False)
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description: Mapped[str] = mapped_column(default="", nullable=False)
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projects: Mapped[list['Project']] = relationship(
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'Project',
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uselist=True,
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secondary='project_attribute',
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back_populates='attributes',
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lazy='noload',
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)
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type_id: Mapped[int] = mapped_column(ForeignKey('attribute_types.id'), nullable=False)
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type: Mapped[AttributeType] = relationship(
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'AttributeType',
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back_populates='attributes',
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lazy='joined',
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)
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card_attributes: Mapped[list['CardAttribute']] = relationship(
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'CardAttribute',
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uselist=True,
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lazy='noload',
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back_populates='attribute',
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)
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class CardAttribute(BaseModel):
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__tablename__ = 'card_attributes'
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id: Mapped[int] = mapped_column(primary_key=True)
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value: Mapped[bytes] = mapped_column(nullable=True)
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card_id: Mapped[int] = mapped_column(ForeignKey('cards.id'), nullable=False)
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card: Mapped['Card'] = relationship(
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'Card',
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back_populates='attributes',
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lazy='noload',
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)
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attribute_id: Mapped[int] = mapped_column(ForeignKey('attributes.id'), nullable=False)
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attribute: Mapped[Attribute] = relationship(
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'Attribute',
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back_populates='card_attributes',
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lazy='joined',
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)
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__table_args__ = (
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UniqueConstraint('card_id', 'attribute_id', name='uq_card_id_attribute_id'),
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Index('idx_card_id_attribute_id', 'card_id', 'attribute_id', unique=True)
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)
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def set_value(self, value):
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self.value = pickle.dumps(value)
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def get_value(self):
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return pickle.loads(self.value)
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