31 lines
1.4 KiB
Python
31 lines
1.4 KiB
Python
Here's the `posts.py` file for the `blog_app_svkgt` FastAPI backend, defining a SQLAlchemy model for posts:
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from sqlalchemy import Column, Integer, String, Text, ForeignKey
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from sqlalchemy.orm import relationship
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from sqlalchemy.sql.sqltypes import TIMESTAMP
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from sqlalchemy.sql import func
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from app.db import Base
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class Post(Base):
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__tablename__ = "posts"
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id = Column(Integer, primary_key=True, index=True)
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title = Column(String, nullable=False)
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content = Column(Text, nullable=False)
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created_at = Column(TIMESTAMP, server_default=func.now())
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updated_at = Column(TIMESTAMP, server_default=func.now(), onupdate=func.now())
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user_id = Column(Integer, ForeignKey("users.id"))
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user = relationship("User", back_populates="posts")
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def __repr__(self):
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return f"Post(id={self.id}, title='{self.title}', content='{self.content[:20]}...')"
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Explanation:
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5. The `title` column is a `String` column marked as `nullable=False`, meaning it cannot be null.
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6. The `content` column is a `Text` column marked as `nullable=False`, allowing for longer text content.
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7. The `created_at` column is a `TIMESTAMP` column with a default value set to the current server time using `func.now()`.
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8. The `updated_at` column is a `TIMESTAMP` column with a default value set to the current server time using `func.now()`, and it will be updated with the current time whenever the row is updated using `onupdate=func.now()`. |