Ella CLI provides a way by which commands can be grouped.

For instance, a db command may have sub-commands like makemigrations, migrate, reset-db etc.

To achieve this use-case, let us create a file commands.py in the root level of the project.

from ellar.commands import EllarTyper

db = EllarTyper(name="db")


@db.command(name="make-migrations")
def makemigrations():
    """Create DB Migration """

@db.command()
def migrate():
    """Applies Migrations"""

Lets, make the db visible on the CLI.

In other for Ellar CLI to identify custom command, its has to be registered to a @Module class.

from ellar.common import Module
from ellar.core import ModuleBase
from .commands import db

@Module(commands=[db])
class ApplicationModule(ModuleBase):
    pass

open your terminal and navigate to project directory and run the command below

ellar db --help

command output

Usage: Ellar, Python Web framework db [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  make-migrations  Create DB Migration
  migrate          Applies Migrations