new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re just files on disk. You can read wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re just files on disk. You can read wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: 126 Chapter 3. Using Django Django Documentation, Release 2.1.16 matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re just files on disk. You can read wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min("books__price"), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For in- stance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For in- stance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware

new ones) and that you’d like the changes to be stored as a migration. Migrations are how Django stores changes to your models (and thus your database schema) - they’re files on disk. You can read the wanted to know the lowest and highest price of any book that is available for sale in any of the stores, you could use the aggregate: >>> Store.objects.aggregate(min_price=Min('books__price'), max_pr matters because a middleware can depend on other middleware. For instance, AuthenticationMiddleware stores the authenticated user in the session; therefore, it must run after SessionMiddleware. See Middleware