gcloud-lab/trade-dashboard/app/models.py

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from sqlalchemy import Column, String, Numeric, Enum, DateTime, JSON, func, Table
from sqlalchemy.dialects.postgresql import UUID
import uuid
from database import metadata
positions = Table(
"positions",
metadata,
Column("id", UUID(as_uuid=True), primary_key=True, default=uuid.uuid4),
Column("symbol", String(32), nullable=False, index=True),
Column("direction", Enum("long", "short", name="position_direction"), nullable=False),
Column("entry_price", Numeric(precision=16, scale=8), nullable=False),
Column("exit_price", Numeric(precision=16, scale=8)),
Column("quantity", Numeric(precision=16, scale=8), nullable=False),
Column("exchange", String(32), nullable=False, index=True),
Column("opened_at", DateTime(timezone=True), server_default=func.now(), nullable=False),
Column("closed_at", DateTime(timezone=True)),
Column("pnl", Numeric(precision=16, scale=2)),
Column("metadata", JSON),
)