Sqlite / SQLAlchemy: how to enforce Foreign Keys?
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by Nick Perkins
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Published on 2010-04-10T21:07:15Z
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2010/04/10
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The new version of SQLite has the ability to enforce Foreign Key constraints, but for the sake of backwards-compatibility, you have to turn it on for each database connection separately!
sqlite> PRAGMA foreign_keys = ON;
I am using SQLAlchemy -- how can I make sure this always gets turned on? What I have tried is this:
engine = sqlalchemy.create_engine('sqlite:///:memory:', echo=True)
engine.execute('pragma foreign_keys=on')
...but it is not working!...What am I missing?
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