Adding indexes to SQLAlchemy models after table creation

Question

I have a flask-sqlalchemy model:

class MyModel(db.Model):
__tablename__ = \'targets\'
id = db.Column(db.Integer, primary_key=True)
url = db.Column(db.String(2048         


        

Answer 1

Since the question was asked, support has been added for this.

Now you can just add index=True to an existing column, and auto-generate the migration.

Checked on the following package versions:

alembic==1.0.10
SQLAlchemy==1.3.4
SQLAlchemy-Utils==0.34.0
Flask-SQLAlchemy==2.4.0
Flask-Migrate==2.5.2