Track alter-event in all the right places

[simonw]

Refs:

• Track AlterTableEvent once it is in a Datasette release #54

[simonw]

This is actually harder than I thought, because there are a bunch of functions that need to be tracked independently:

datasette-edit-schema/datasette_edit_schema/__init__.py

Lines 373 to 394 in 130faf5

	if formdata.get("action") == "update_foreign_keys":
	return await update_foreign_keys(
	request, datasette, database, table, formdata
	)
	elif formdata.get("action") == "update_primary_key":
	return await update_primary_key(
	request, datasette, database, table, formdata
	)
	elif "drop_table" in formdata:
	return await drop_table(request, datasette, database, table)
	elif "add_column" in formdata:
	return await add_column(request, datasette, database, table, formdata)
	elif "rename_table" in formdata:
	return await rename_table(request, datasette, database, table, formdata)
	elif "add_index" in formdata:
	column = formdata.get("add_index_column") or ""
	unique = formdata.get("add_index_unique")
	return await add_index(request, datasette, database, table, column, unique)
	elif any(key.startswith("drop_index_") for key in formdata.keys()):
	return await drop_index(request, datasette, database, table, formdata)
	else:
	return Response.html("Unknown operation", status=400)

I think this will be easier if I do the trick where I check the schema before and after and record the event if the schema changed, no matter which code path was taken.