The views documented on this chapter are the building blocks of F.A.B, but the juicy part is on the next chapter

(take a look at Security for more detail). So your methods will have automatic routing points much like Flask, but this time in a class.Īdditionally you can have granular security (method access security) that can be associated with a user’s role You will map your methods to routing points, and each method will be registeredĪs a possible security permission if you want. They work like a class that represent a concept and present the views and methods to implement it.Įach view is a Flask blueprint that will be created for you automatically by the framework. Forms - Override automatic form creation.(Deprecated) Define your Chart Views (views.py).Using JMESPath to map user registration role.reset-password - Resets a user’s password.upgrade-db - Upgrade your database after F.A.B.babel-extract - Babel, Extracts and updates all messages.The decorator syntax is just a little syntactic sugar. When we stack decorators, the topmost decorator will run first, thenĬall the next function in line: either the view function or the nextĭecorator. View function func() with its original arguments. Now that we’ve done what we wanted to do, we run the decorated Message and redirect them to the billing page. This is where weĬheck if the user’s account is expired. Passed to the original view function func(). This makes the behavior of theĭecorated_function will get all of the args and kwargs that were Is called and the decorated function is passed as a is a decorator that does some bookkeeping so thatĭecorated_function() appears as func() for the purposes ofĭocumentation and debugging. When a function is decorated with check_expired() Update your billing info.' ) return redirect ( url_for ( 'account_billing' )) return func ( * args, ** kwargs ) return decorated_function 10 account_expires : flash ( 'Your account has expired. # myapp/util.py from functools import wraps from datetime import datetime from flask import flash, redirect, url_for from import current_user def check_expired ( func ): ( func ) def decorated_function ( * args, ** kwargs ): if datetime.

Flask app builder routes edit view