problem description
I have made a Wechat scan login function. After scanning the code successfully, determine whether the user exists in the database, and if not, add a user. Then perform a login_user (user), jump to the home page. It is found that if login_user does not assign True to the remember parameter, it jumps all the way to the code scan login page. In theory, I will execute load_user after login_user (user), but I don"t. Load_user is executed only if remember = True is assigned.
the environmental background of the problems and what methods you have tried
- python 3.7
- Flask==1.0.2
- Flask-Bootstrap==3.3.7.1
- Flask-Login==0.4.1
- Flask-Migrate==2.3.0
- Flask-Moment==0.6.0
- Flask-SQLAlchemy==2.3.2
- Flask-WTF==0.14.2
related codes
/ / Please paste the code text below (do not replace the code with pictures)
- Model models.py
class User(UserMixin, db.Model):
id = db.Column(db.Integer, primary_key = True)
username = db.Column(db.String(64), index = True, unique = True)
email = db.Column(db.String(120), index=True, unique=True)
password_hash = db.Column(db.String(128))
about_me = db.Column(db.String(140))
last_seen = db.Column(db.DateTime, default=datetime.utcnow)
-sharp 20181206
userid = db.Column(db.String(10))
deptid = db.Column(db.Integer, db.ForeignKey("dept.id"))
posts = db.relationship("Post", backref="author",lazy="dynamic")- I never figured out what the id of this load_user is? Where did you pass it the parameters? Is it a database?
@login.user_loader
def load_user(id):
print("=========load_user===========")
return User.query.get(int(id))- routing auth/login
@bp.route("/login", methods = ["GET","POST"])
def login():
if current_user.is_authenticated:
print("authenticated")
return redirect(url_for("main.index"))
return render_template("auth/wxlogin.html")- scan the code to verify the route
@bp.route("/oauth", methods = ["GET","POST"])
def get_from_wechat():
-sharp code
code = request.args.get("code")
print("code:%s" % code)
-sharp APIcodecode
url = current_app.config["WECHAT_SERVER"] + "/getuser/" + code
response = requests.get(url)
user_json = json.loads(response.text)
print(user_json)
if user_json["errcode"] == 0:
-sharp :
user = User.query.filter_by(userid=user_json["userid"]).first()
print("oauth:", user)
if user is None:
print("add user:")
user = User(username=user_json["name"], email=user_json["userid"] + "@qq.com" )
user.set_password("Abc123")
user.userid = user_json["userid"]
user.about_me = user_json["avatar"]
user.deptid = 6
db.session.add(user)
db.session.commit()
login_user(user, remember=False)
print(current_user.is_anonymous)-sharpFalse
return redirect(url_for("main.index"))
else:
return render_template("errors/404.html")
return render_template("auth/wxlogin.html")
-sharpreturn redirect(url_for("main.index"))- index.html
{% extends "base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block app_content %}
<h2>{{ current_user.username }}</h2>
{% endblock %}what result do you expect? What is the error message actually seen?
I hope that after scanning the code successfully, I will jump to the Index.html page