Flask 学习-66.全局g对象的使用

The application context is created and destroyed as necessary. It never moves between threads and it will not be shared between requests. As such it is the perfect place to store database connection information and other things. The internal stack object is called flask.appctx_stack. Extensions are free to store additional information on the topmost level, assuming they pick a sufficiently unique name and should put their information there, instead of on the flask.g object which is reserved for user code.

from flask import Flask, request, g

app = Flask(__name__)

def is_admin():
    if g.user == 'admin':
        return True
    else:
        return False

@app.route('/login')
def login():
    user = request.args.get('username')
    g.user = user
    if is_admin():
        return {'msg': 'ok', 'admin': 'yes'}
    else:
        return {'msg': 'ok', 'admin': 'no'}

if __name__ == '__main__':
    app.run()

def is_admin(user):
    if user == 'admin':
        return True
    else:
        return False

@app.route('/login')
def login():
    user = request.args.get('username')
    if is_admin(user):
        return {'msg': 'ok', 'admin': 'yes'}
    else:
        return {'msg': 'ok', 'admin': 'no'}