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Simple SQL ORM with support for several DB providers

Project description


Abstract relational ORM system

WARNING: This is a small project I built mainly to learn how to interface with a few different kinds of SQL database. If you would like to use this in production, no you don't!



python3 -m pip install pythrel

Basic Usage:

from pythrel import SqliteDatabase, Pythrel, Record
import secrets
import random

# Create database adapter
db = SqliteDatabase(path="test.db")
db.create_table("customers", {"id": "INTEGER", "customerName": "TEXT", "favorite_number": "REAL"})

# Generate some data
for c in range(500):
    CUSTOMERS[c] = {
        "id": c,
        "customerName": secrets.token_urlsafe(8),
        "favorite_number": random.randint(0, 10000)

# Insert data
db.query().insert("customers", list(CUSTOMERS.values())).execute()

# Connect DB instance to ORM
orm = Pythrel(db)

# Use database table rows as objects
print(orm.load_columns(Customer, "customers", "*")[0].dict())
orm.create(Customer, "customers", id=-10, customerName="John", favorite_number=-69)
john = orm.load_columns(Customer, "customers", "*", where="id < 0")[0]
john.favorite_number = 1000, key="id")
print(orm.load_query(Customer, orm.query().select("customers", "*").where("id < 0"))[0])

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