Tonbo Python Binding

`@Record`

Tonbo provides ORM-like macro for ease of use, you can use @Record to define schema of column family.

@Record
class User:
   id = Column(DataType.Int64, name="id", primary_key=True)
   age = Column(DataType.Int16, name="age", nullable=True)
   name = Column(DataType.String, name="name", nullable=False)

This is a bad thing that you should pay attention to.

Warning blocks should be used sparingly in documentation, to avoid "warning fatigue," where people are trained to ignore them because they usually don't matter for what they're doing.

Configuration

Example

from tonbo import DbOption, Column, DataType, Record, TonboDB, Bound
from tonbo.fs import from_filesystem_path
import asyncio

@Record
class User:
   id = Column(DataType.Int64, name="id", primary_key=True)
   age = Column(DataType.Int16, name="age", nullable=True)
   name = Column(DataType.String, name="name", nullable=False)

async def main():
    db = TonboDB(DbOption(from_filesystem_path("db_path/user")), User())
    await db.insert(User(id=18, age=175, name="Alice"))
    record = await db.get(18)
    print(record)

    # use transcaction
    txn = await db.transaction()
    result = await txn.get(18)
    scan = await txn.scan(Bound.Included(18), None, limit=10, projection=["id", "name"])

    async for record in scan:
        print(record)

asyncio.run(main())