Pipelinen parannuksia building blockeilla

zipit/projekti_clean/models.py

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+from sqlalchemy import create_engine, Column, Integer, String, Date, Enum
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+DATABASE_URL = "sqlite:///./todo.db"
+engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()
+
+class Todo(Base):
+    __tablename__ = "todos"
+    id = Column(Integer, primary_key=True, index=True)
+    title = Column(String(100), nullable=False)
+    description = Column(String(500))
+    due_date = Column(Date, nullable=False)
+    status = Column(Enum('pending', 'completed'), default='pending')