How do I implement database routers in Django?

How do I implement database routers in Django?

To implement database routers in Django, you need to create a router class that defines how database operations are directed.

Can you show me a simple example of a database router?

Sure! Here's a basic example:

class MyRouter:
    def db_for_read(self, model, **hints):
        return 'my_database'  # Specify the database for read operations

    def db_for_write(self, model, **hints):
        return 'my_database'  # Specify the database for write operations

    def allow_migrate(self, db, app_label, model_name=None, **hints):
        return db == 'my_database'  # Allow migrations only on the specified database

What if I want to route based on the app?

You can modify the router methods to check the app label and route accordingly. For example:

def db_for_read(self, model, **hints):
    if model._meta.app_label == 'my_app':
        return 'my_database'
    return None