post-orm 0.0.4
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Description:
postorm 0.0.4
PostgreSQL Python ORM
A minimal Python ORM for interacting with a PostgreSQL database (using psycopg2)
Installation
pip install post-orm
Example
from post_orm import Database, Column, Table, ForeignKey
db = Database(
database="test_database",
user="postgres",
password="1234",
host="localhost",
port="5432",
)
# Create tables
class School(Table):
country = Column(str)
name = Column(str)
class Student(Table):
name = Column(str)
school = ForeignKey(School)
db.create([School, Student])
# Save school
school = School(name="Hogwarts", country="England")
db.save(school)
# Save students
harry = Student(name="Harry Potter", school=school)
ron = Student(name="Ron Weasley", school=school)
db.save([harry, ron])
# Make queries
all_students = db.all(Student)
harrys_school = db.query(Student, name="Harry Potter", limit=1).school # use limit=1 to return a single object.
hogwarts = db.query(School, country="Eng%", limit=1) # use % for wildcard search.
assert harrys_school.country == hogwarts.country
Run tests in Docker
Prepare a test-database
docker run --rm -P -p 127.0.0.1:5432:5432 -e POSTGRES_PASSWORD="1234" --name pg postgres:alpine
psql postgresql://postgres:1234@localhost:5432/postgres
CREATE DATABASE test_database;
Run tests
python -m pytest .
This project was heavily inspiered by the SQLite ORM in this course on testdriven.io
License:
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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