Prepare monorepo

backend/app/models/transaction.py

@@ -0,0 +1,19 @@
+from sqlalchemy import String, Uuid, Column, DateTime, Enum, Numeric, ForeignKey
+
+from app.schemas.transaction import TransactionEventTriggerReason, TransactionStatus
+from app.database import Base
+
+class Transaction(Base):
+    __tablename__ = "transactions"
+
+    id = Column(String, primary_key=True)
+    status = Column(Enum(TransactionStatus), index=True)
+    started_at = Column(DateTime, index=True)
+    ended_at = Column(DateTime, nullable=True, index=True)
+    meter_start = Column(Numeric(10,2))
+    meter_end = Column(Numeric(10,2), nullable=True)
+    end_reason = Column(Enum(TransactionEventTriggerReason), nullable=True)
+    price = Column(Numeric(10,2))
+
+    user_id = Column(Uuid, ForeignKey("users.id"), nullable=True, index=True)
+    chargepoint_id = Column(Uuid, ForeignKey("chargepoints.id"), index=True)