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refactor or remove old docs (#4748)

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David Lord 2022-08-05 11:28:22 -07:00 • committed by GitHub
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@ -130,9 +130,25 @@ being present. You can easily use your own templating language, but an
extension could still depend on Jinja itself.
Micro with Dependencies
What does "micro" mean?
-----------------------
“Micro” does not mean that your whole web application has to fit into a single
Python file (although it certainly can), nor does it mean that Flask is lacking
in functionality. The "micro" in microframework means Flask aims to keep the
core simple but extensible. Flask won't make many decisions for you, such as
what database to use. Those decisions that it does make, such as what
templating engine to use, are easy to change. Everything else is up to you, so
that Flask can be everything you need and nothing you don't.
By default, Flask does not include a database abstraction layer, form
validation or anything else where different libraries already exist that can
handle that. Instead, Flask supports extensions to add such functionality to
your application as if it was implemented in Flask itself. Numerous extensions
provide database integration, form validation, upload handling, various open
authentication technologies, and more. Flask may be "micro", but it's ready for
production use on a variety of needs.
Why does Flask call itself a microframework and yet it depends on two
libraries (namely Werkzeug and Jinja2). Why shouldn't it? If we look
over to the Ruby side of web development there we have a protocol very
@ -201,5 +217,12 @@ requirements and Flask could not meet those if it would force any of this
into the core. The majority of web applications will need a template
engine in some sort. However not every application needs a SQL database.
As your codebase grows, you are free to make the design decisions appropriate
for your project. Flask will continue to provide a very simple glue layer to
the best that Python has to offer. You can implement advanced patterns in
SQLAlchemy or another database tool, introduce non-relational data persistence
as appropriate, and take advantage of framework-agnostic tools built for WSGI,
the Python web interface.
The idea of Flask is to build a good foundation for all applications.
Everything else is up to you or extensions.