Peewee 3.14.4 Documentation
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Relationships and Joins
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2021-06-21 21:02:38
Relationships and Joins
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Query Builder
Models and Fields
Fields
Creating model tables
Model options and table metadata
Indexes and Constraints
Primary Keys, Composite Keys and other Tricks
Self-referential foreign keys
Circular foreign key dependencies
Installing and Testing
Query operators
Three valued logic
Adding user-defined operators
Expressions
SQL Functions
SQL Helper
Security and SQL Injection
Example app
Running the example
Diving into the code
More examples
Using Peewee Interactively
Playhouse, extensions to Peewee
Sqlite Extensions
Fields
Hybrid Attributes
Key/Value Store
Shortcuts
Signal support
pwiz, a model generator
Schema Migrations
Reflection
Database URL
Connection pool
SqliteQ
Test Utils
Flask Utils
Sqlite User-Defined Functions
apsw, an advanced sqlite driver
Sqlcipher backend
Postgresql Extensions
Cockroach Database
MySQL Extensions
DataSet
Peewee
SQLite Extensions
Getting started
APIs
Additional Features
Changes in 3.0
Quickstart
Model Definition
Storing data
Retrieving Data
Database
What next?
Query Examples
Model Definitions
Schema Creation
Basic Exercises
Joins and Subqueries
Modifying Data
Aggregation
Recursion
API Documentation
Querying
Creating a new record
Sorting records
Getting random records
Paginating records
Counting records
Aggregating records
Retrieving Scalar Values
Window functions
Retrieving row tuples / dictionaries / namedtuples
Returning Clause
Common Table Expressions
Bulk inserts
Foreign Keys and Joins
Updating existing records
Atomic updates
Deleting records
Selecting a single record
Create or get
Selecting multiple records
Filtering records
Contributing
Database
Initializing a Database
Thread-Safety and Multiple Databases
Connection Management
Connection Pooling
Testing Peewee Applications
Async with Gevent
Framework Integration
Executing Queries
Managing Transactions
Database Errors
Logging queries
Using Postgresql
Adding a new Database Driver
Using CockroachDB
Using SQLite
Using MySQL
Connecting using a Database URL
Run-time database configuration
Dynamically defining a database
Setting the database at run-time
Hacks
Relationships and Joins
Model definitions
Avoiding the N+1 problem
Performing simple joins
Joining multiple tables
Selecting from multiple sources
Subqueries
Multiple foreign-keys to the same Model
Joining on arbitrary fields
Self-joins
Implementing Many to Many
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