Bump piccolo from 1.17.1 to 1.21.0 in /bot

[dependabot]

Bumps piccolo from 1.17.1 to 1.21.0.

Release notes

Sourced from piccolo's releases.

1.21.0

Postgres 17 is now officially supported.

Fixed a bug with joins, when a ForeignKey column had db_column_name specified. Thanks to @​jessemcl-flwls for reporting this issue.

1.20.0

get_related now works multiple layers deep:

concert = await Concert.objects().first()
manager = await concert.get_related(Concert.band_1._.manager)

1.19.1

Fixed a bug with the get_m2m method, which would raise a ValueError when no objects were found. It now handles this gracefully and returns an empty list instead. Thanks to @​nVitius for this fix.

Improved the ASGI templates (including a fix for the latest Litestar version). Thanks to @​sinisaos for this.

1.19.0

Added support for row locking (i.e. SELECT ... FOR UPDATE).

For example, if we have this table:

class Concert(Table):
    name = Varchar()
    tickets_available = Integer()

And we want to make sure that tickets_available never goes below 0, we can do the following:

async def book_tickets(ticket_count: int):
    async with Concert._meta.db.transaction():
        concert = await Concert.objects().where(
            Concert.name == "Awesome Concert"
        ).first().lock_rows()
    if concert.tickets_available >= ticket_count:
        await concert.update_self({
            Concert.tickets_available: Concert.tickets_available - ticket_count
        })
    else:
        raise ValueError("Not enough tickets are available!")

This means that when multiple transactions are running at the same time, it isn't possible to book more tickets than are available.

Thanks to @​dkopitsa for adding this feature.

... (truncated)

Changelog

Sourced from piccolo's changelog.

1.21.0

Postgres 17 is now officially supported.

Fixed a bug with joins, when a ForeignKey column had db_column_name specified. Thanks to @​jessemcl-flwls for reporting this issue.

---

1.20.0

get_related now works multiple layers deep:

.. code-block:: python

concert = await Concert.objects().first()
manager = await concert.get_related(Concert.band_1._.manager)

---

1.19.1

Fixed a bug with the get_m2m method, which would raise a ValueError when no objects were found. It now handles this gracefully and returns an empty list instead. Thanks to @​nVitius for this fix.

Improved the ASGI templates (including a fix for the latest Litestar version). Thanks to @​sinisaos for this.

---

1.19.0

Added support for row locking (i.e. SELECT ... FOR UPDATE).

For example, if we have this table:

.. code-block:: python

class Concert(Table): name = Varchar() tickets_available = Integer()

And we want to make sure that tickets_available never goes below 0, we can do the following:

... (truncated)

Commits

• 67be2d6 bumped version
• d1b0bb1 add Postgres 17 (#1106)
• db69230 1101 Fix joins with ForeignKey columns with db_column_name specified (#1102)
• f4bf25a bump version
• 57673af more tests (#1095)
• 2cae26b 1091 Make get_related work multiple levels deep (#1092)
• a8d401e fix typo in changelog
• 1b34405 bumped version
• 5173a39 1090 fix(m2m): Return empty list if there are no m2m entries (#1089)
• 36ccc28 integration test update for Esmerald (#1087)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #44.