Mastering Peewee: The Ultimate Lightweight ORM for Python

Overview

Common Use Cases

• Building a simple blogging platform
• Developing a lightweight user management system
• Creating a minimal ORM for educational purposes

Code Examples

import peewee\n\n# Define a simple model\nclass BaseModel(peewee.Model):\n    pass\n\nclass User(BaseModel):\n    username = peewee.CharField()\n    email = peewee.CharField()\n\n# Connecting to a SQLite database\nsqlite_db = peewee.SqliteDatabase('my_app.db')\n\nUser._meta.database = sqlite_db\n\n# Create the table\nsqlite_db.connect()\nsqlite_db.create_tables([User])\n\n# Insert a new user\nnew_user = User.create(username='john_doe', email='john@example.com')\n\n# Querying the database\nuser = User.get(User.username == 'john_doe')\nprint(user.email)

import peewee\n\n# Advanced query with joining\nclass Blog(BaseModel):\n    title = peewee.CharField()\n    content = peewee.TextField()\n    user = peewee.ForeignKeyField(User, backref='blogs')\n\n# Create the table\nsqlite_db.create_tables([Blog])\n\n# Insert a new blog\nnew_blog = Blog.create(title='My First Blog', content='This is a blog post.', user=new_user)\n\n# Querying with join\nblogs = (Blog\n         .select(Blog, User)\n         .join(User)\n         .where(User.username == 'john_doe'))\n\nfor blog in blogs:\n    print(blog.title, blog.user.username)

Alternatives

Common Methods