issues

Right now you use conversions= like this:

python db["example"].insert({ "name": "The Bigfoot Discovery Museum" }, conversions={"name": "upper(?)"}) How about if you could optionally provide a Python function (or a lambda) like this? python db["example"].insert({ "name": "The Bigfoot Discovery Museum" }, conversions={"name": lambda s: s.upper()}) This would work by creating a random name for that function, registering it (similar to #162), executing the SQL and then un-registering the custom function at the end.

I'd like to get new sqlite-utils (and Datasette) releases submitted to Homebrew as painlessly as possible.

I'm getting this when latest is deployed to Cloud Run: Traceback (most recent call last): File "/usr/local/bin/datasette", line 8, in <module> sys.exit(cli()) File "/usr/local/lib/python3.8/site-packages/click/core.py", line 829, in __call__ return self.main(*args, **kwargs) File "/usr/local/lib/python3.8/site-packages/click/core.py", line 782, in main rv = self.invoke(ctx) File "/usr/local/lib/python3.8/site-packages/click/core.py", line 1259, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/local/lib/python3.8/site-packages/click/core.py", line 1066, in invoke return ctx.invoke(self.callback, **ctx.params) File "/usr/local/lib/python3.8/site-packages/click/core.py", line 610, in invoke return callback(*args, **kwargs) File "/usr/local/lib/python3.8/site-packages/datasette/cli.py", line 406, in serve inspect_data = json.load(open(inspect_file)) TypeError: 'bool' object is not callable I think I may have broken things in #970 - a980199e61fe7ccf02c2123849d86172d2ae54ff

And rename the first argument from columns= to types=

The .transform() method in #114 warrants an equivalent CLI tool.

Since these operations could take a long time against large tables, it would be neat if there was a progress bar option for the CLI command.

The operations are full table scans so calculating progress shouldn't be too difficult. Originally posted by @simonw in https://github.com/simonw/sqlite-utils/issues/42#issuecomment-513246831

It is not possible to enable or disable foreign key constraints in the middle of a multi-statement transaction (when SQLite is not in autocommit mode). Attempting to do so does not return an error; it simply has no effect.

https://sqlite.org/foreignkeys.html

Refs #165

Syntactic sugar for db.conn.create_function - it would work something like this:

```python db = sqlite_utils.Database("mydb.db")

@db.register_function def scramble(text): chars = list(text) random.shuffle(chars) return "".join(chars) The decorator would inspect the function to find its name and arity (number of arguments). Having run the above you could then do:python db.execute("select scramble('hello')").fetchall() ```