Agent skill

python-peewee

Patterns for using Peewee ORM with DatabaseProxy and scoped connections/transactions. Use when setting up DatabaseProxy, managing connection_context/atomic blocks, or writing tests with SQLite.

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SKILL.md

Python Peewee

Use Peewee with DatabaseProxy and scoped connection/transaction patterns.

Set up

DatabaseProxy & BaseModel

python
from peewee import DatabaseProxy, Model

db_proxy = DatabaseProxy()

class BaseModel(Model):
    class Meta:
        database = db_proxy

Initialize DB

python
from peewee import SqliteDatabase

db = SqliteDatabase("app.db", pragmas={"foreign_keys": 1})
db_proxy.initialize(db)

Use connections and transactions

Read (no transaction)

python
with db_proxy.obj.connection_context():
    rows = MyModel.select().limit(100)

Write (atomic)

python
with db_proxy.obj.atomic():
    a.save()
    b.save()

Combined

python
db = db_proxy.obj
with db.connection_context():
    with db.atomic():
        ...

Use connection_context() for scoped connections (open/close). Use atomic() for atomic writes (BEGIN/COMMIT/ROLLBACK).

Test with SQLite

python
import pytest
from peewee import SqliteDatabase

@pytest.fixture
def test_db(tmp_path):
    db = SqliteDatabase(str(tmp_path / "test.db"))
    db_proxy.initialize(db)
    with db.connection_context():
        db.create_tables([MyModel])
    yield db
    db.close()

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