57 lines
2.2 KiB
Python
57 lines
2.2 KiB
Python
import uuid
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from datetime import datetime
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from sqlalchemy import String, Integer, Float, DateTime, ForeignKey, Index, func, Text
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from sqlalchemy import Uuid, JSON
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from sqlalchemy.orm import Mapped, mapped_column
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from app.database import Base
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class TrendInsight(Base):
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__tablename__ = "trend_insights"
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id: Mapped[uuid.UUID] = mapped_column(
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Uuid(as_uuid=True),
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primary_key=True,
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default=uuid.uuid4,
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)
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brand_id: Mapped[uuid.UUID] = mapped_column(
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Uuid(as_uuid=True),
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ForeignKey("brands.id", ondelete="CASCADE"),
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nullable=False,
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)
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trend_type: Mapped[str] = mapped_column(String(20), nullable=False)
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keyword: Mapped[str | None] = mapped_column(String(200), nullable=True)
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platform: Mapped[str | None] = mapped_column(String(50), nullable=True)
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period_start: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
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period_end: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
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data_points: Mapped[list | None] = mapped_column(JSON, nullable=True)
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change_rate: Mapped[float | None] = mapped_column(Float, nullable=True)
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absolute_change: Mapped[int | None] = mapped_column(Integer, nullable=True)
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sentiment_trend: Mapped[dict | None] = mapped_column(JSON, nullable=True)
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cause_analysis: Mapped[str | None] = mapped_column(Text, nullable=True)
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recommendations: Mapped[list | None] = mapped_column(JSON, nullable=True)
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confidence: Mapped[float] = mapped_column(Float, nullable=False, default=0.5)
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severity: Mapped[str] = mapped_column(
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String(20), nullable=False, server_default="info",
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)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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nullable=False,
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)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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onupdate=func.now(),
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nullable=False,
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)
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__table_args__ = (
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Index("idx_trend_insights_brand_id", "brand_id"),
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Index("idx_trend_insights_trend_type", "trend_type"),
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Index("idx_trend_insights_created_at", "created_at"),
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Index("idx_trend_insights_period_start", "period_start"),
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)
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