Fixing ALTER TABLE errors with Flask-Migrate and SQLite

it is still useful after 3 years. Miguel you are my hero.

Many thanks!

ValueError: Constraint must have a name what is this error?

Very good video, it helped me a lot. New subscriber.

Greatest tip

It seems that this option this option render_as_batch=True needs to set a naming convention for constraints (e.g. metadata = MetaData(naming_convention=convention) and db = SQLAlchemy(app, metadata=metadata)) to avoid errors of the type ValueError: Constraint must have a name (for example when columns are defined with unique=True), right?

Amazing! Thank you very much.

Excelent, thanks a lot. I see that you like to use flask, what do you think about to use flask vs django?

Amazing! I had this problem days ago hahahaha

Thanks so much. I was ready to give up on my project because of this and you made the process seem so simple. You've got a new subscriber!

How to create a global counter variable in flask which will be incremented in every request?

many thanks

Thank you Miguel,I run into this during the microblog project and change the dev db to postgresql since this going to the "prod" version.. BTW, the flask mega tutorial is a wonderful course!

Thanks! And just in time to save a local project from having to migrate to MySQL

Very informative video.