セッションを使ㆠ— SQLAlchemy 0.6.5 ドã‚ュメント (和訳)
セッションを使ã†Â¶ SQLAlchemy ã§ã‚ªãƒ–ジェクト・リレーショナルマッパをè¨å®šã™ã‚‹ã¨ãã«ã¯ã€ Mapper ã‚’ API ã®ã‚¨ãƒ³ãƒˆãƒªãƒã‚¤ãƒ³ãƒˆã«ä½¿ã„ã¾ã™ã€‚ã—ã‹ã—〠ORM を使ã†ã¨ãã«ã‚‚㣠ã¨ã‚‚よã扱ã†ã®ã¯ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³ (Session) 㧠ã™ã€‚ セッションã®å½¹å‰²Â¶ 大雑把ã«è¨€ãˆã°ã€ Session ã¯ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ ã¨ã®å¯¾è©±ã‚’å…¨ã¦æ‹…当ã—ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‹ã‚‰èªã¿å‡ºã—ãŸã‚Šç”Ÿæˆã—ãŸãƒžãƒƒãƒ”ングインス タンスを「ä¿å˜ã—ã¦ãŠãå ´æ‰€ã€ã§ã™ã€‚セッション㯠Unit of Work パターンを実装ã—ã¦ã„ã‚‹ã®ã§ã€ã‚ªãƒ–ジェクトã«åŠ ãˆã‚‰ã‚ŒãŸå…¨ã¦ã®å¤‰æ›´ã‚’追跡ã—ã¦ã€ é©æ™‚変更部分をデータベース㫠flush ã—ã¾ã™ã€‚セッションã®ã‚‚ã†ä¸€ã¤é‡è¦ãªãƒ イントã¯ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³ãŒã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã® 一æ„㪠コピーã€ã™ãªã‚ã¡ã€Œã‚るプラ イマリã‚ーã«å¯¾å¿œã™ã‚‹ãŸã 一ã¤ã®ã‚ªãƒ–ジェクトã€ã‚’ä¿æŒã—ã¦ã„ã‚‹ã¨ã„ã†ã“ã¨ã§ã™ã€‚ ã“ã‚Œã¯ã€ã„ã‚ゆる I
method of iterating over sqlalchemy model's defined columns?
I've been trying to figure out how to iterate over the list of columns defined in a SQLAlchemy model. I want it for writing some serialization and copy methods to a couple of models. I can't just iterate over the obj.__dict__ since it contains a lot of SA specific items. Anyone know of a way to just get the id and desc names from the following? class JobStatus(Base): __tablename__ = 'jobstatus' id
<no title> — SQLAlchemy 2.0 Documentation
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Load strategy doesn't work after commit() when lazy='raise' · Issue #5317 · sqlalchemy/sqlalchemy
zzzeek : Asynchronous Python and Databases
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