97 lines
3.7 KiB
Python
97 lines
3.7 KiB
Python
from sqlalchemy import (
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Column,
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String,
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Date,
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Boolean,
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ForeignKey,
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Table,
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UniqueConstraint,
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)
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from sqlalchemy.dialects.postgresql import UUID
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from sqlalchemy.orm import relationship
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import uuid
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from backend.database import Base
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# Association table for Item <-> Tag
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item_tag_table = Table(
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"item_tag",
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Base.metadata,
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Column("item_id", UUID(as_uuid=True), ForeignKey("item.id", ondelete="CASCADE"), primary_key=True),
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Column("tag_id", UUID(as_uuid=True), ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True),
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)
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# Association tables for Trip <-> Tag
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trip_selected_tag_table = Table(
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"trip_selected_tag",
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Base.metadata,
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Column("trip_id", UUID(as_uuid=True), ForeignKey("trip.id", ondelete="CASCADE"), primary_key=True),
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Column("tag_id", UUID(as_uuid=True), ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True),
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)
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trip_marked_tag_table = Table(
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"trip_marked_tag",
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Base.metadata,
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Column("trip_id", UUID(as_uuid=True), ForeignKey("trip.id", ondelete="CASCADE"), primary_key=True),
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Column("tag_id", UUID(as_uuid=True), ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True),
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)
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class User(Base):
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__tablename__ = "user"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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name = Column(String, nullable=False)
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class Tag(Base):
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__tablename__ = "tag"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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user_id = Column(UUID(as_uuid=True), ForeignKey("user.id", ondelete="CASCADE"), nullable=False)
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name = Column(String, nullable=False)
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mandatory = Column(Boolean, nullable=False, default=False)
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user = relationship("User", backref="tags")
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__table_args__ = (
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UniqueConstraint("user_id", "name", name="uq_tag_user_name"),
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)
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class Item(Base):
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__tablename__ = "item"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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user_id = Column(UUID(as_uuid=True), ForeignKey("user.id", ondelete="CASCADE"), nullable=False)
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name = Column(String, nullable=False)
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# Optional association to a specific trip
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trip_id = Column(UUID(as_uuid=True), ForeignKey("trip.id"), nullable=True)
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user = relationship("User", backref="items")
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tags = relationship("Tag", secondary=item_tag_table, backref="items")
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trip_items = relationship("TripItem", back_populates="item", cascade="all, delete-orphan")
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trip = relationship("Trip", backref="special_items")
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class Trip(Base):
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__tablename__ = "trip"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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user_id = Column(UUID(as_uuid=True), ForeignKey("user.id", ondelete="CASCADE"), nullable=False)
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name = Column(String, nullable=True)
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start_date = Column(Date, nullable=False)
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end_date = Column(Date, nullable=False)
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selected_tags = relationship("Tag", secondary=trip_selected_tag_table, backref="selected_in_trips", cascade="all, delete")
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marked_tags = relationship("Tag", secondary=trip_marked_tag_table, backref="marked_in_trips", cascade="all, delete")
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class TripItem(Base):
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__tablename__ = "trip_item"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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trip_id = Column(UUID(as_uuid=True), ForeignKey("trip.id", ondelete="CASCADE"), nullable=False)
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item_id = Column(UUID(as_uuid=True), ForeignKey("item.id", ondelete="CASCADE"), nullable=False)
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name_calculated = Column(String, nullable=False)
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checked = Column(Boolean, nullable=False, default=False)
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tag_id = Column(UUID(as_uuid=True), ForeignKey("tag.id"), nullable=True)
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trip = relationship("Trip", backref="trip_items")
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item = relationship("Item", back_populates="trip_items")
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tag = relationship("Tag", backref="trip_items")
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