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pythonsqlalchemyflask-sqlalchemy

Flask-SQLalchemy update a row's information

How can I update a row's information?

For example I'd like to alter the name column of the row that has the id 5.

Solution

  • Retrieve an object using the tutorial shown in the Flask-SQLAlchemy documentation. Once you have the entity that you want to change, change the entity itself. Then, db.session.commit().

    For example:

    admin = User.query.filter_by(username='admin').first()
admin.email = 'my_new_email@example.com'
db.session.commit()

user = User.query.get(5)
user.name = 'New Name'
db.session.commit()

    Flask-SQLAlchemy is based on SQLAlchemy, so be sure to check out the SQLAlchemy Docs as well.