issue_comments

@IgnoredAmbience this is now shipped in sqlite-utils 1.2 - documentation here:

• https://sqlite-utils.readthedocs.io/en/latest/python-api.html#python-api-defaults-not-null
• https://sqlite-utils.readthedocs.io/en/latest/cli.html#cli-defaults-not-null

Maybe it's time to create a sqlite-utils create-table command here too, rather than forcing people to create tables only by inserting example data.

But what to do for creating a table?

For the Python function I could do this: python db["cats"].create({ "id": int, "name": str, "score": int, "weight": float, }, pk="id", not_null={"weight"}, defaults={"score": 1})

The CLI tool only every creates tables as a side-effect of a sqlite-utils insert or sqlite-utils upsert. I can have them accept optional arguments, --not-null colname and --default colname value: echo '{"name": "Cleo", "age": 4, "score": 2}' | \ sqlite-utils insert dogs.db dogs - \ --not-null age \ --not-null name \ --default score 1

Since you can't have one without the other, I'm going with --not-null-default= and not_null_default= for the add column versions of this.

Hmm... we need the ability to pass --not-null when we are creating a table as well.

If you attempt to add NOT NULL to a column after a table has first been created you get this error:

sqlite3.OperationalError: Cannot add a NOT NULL column with default value NULL

This seems reasonable. It could look like this:

python db["dogs"].add_column("instagram", str, not_null=True) db["dogs"].add_column("is_good_dog", bool, default=True) And this: bash $ sqlite-utils add-column mydb.db dogs instagram --not-null $ sqlite-utils add-column mydb.db dogs is_good_dog integer --default=1