Question

在我的plt.show()路由中，我试图在会话中存储用户ID并自动登录用户，但是当我尝试这样做时，出现此错误：

Signedup

而且，在我的TypeError: object of type 'ResultProxy' does not support indexing路线中，我试图记住哪个用户已登录，但在这里出现错误：

signin

在TypeError: object of type 'ResultProxy' has no len()中的

signedup路线

application.py

在

@app.route("/signedup",methods=["GET","POST"])
def signedup():
    if request.method=="POST":
        password = request.form.get("password")
        hash = pwd_context.encrypt(password)


        name = request.form.get("name")



        if not name:
            return "must provide username"
        elif not password:
            return "must provide password"



        registration = db.execute("INSERT INTO users (username,password) VALUES (:username,:password)",
                    {"username":name,"password":hash})

        if not registration:
            return "pick a different username"


        # Store their ID in session and log them in automatically

     user_id = db.execute("SELECT user_id FROM users where username = :username",{"username":name})        
            # It means something like - "give me the first row in result

            # and retrieve the value of the key "id"
#ERROR
            session["user_id"] = user_id[0]["id"]      
            db.commit()

            return render_template("success.html",name = name)
        else:
            return render_template("signup.html")

中的

signin路线

application.py

Answer 1

您可以简单地遍历resultProxy对象。

for iter in user_id:
   session["user_id"] = iter[0]

Answer 2

我遇到了相同的错误，并通过在db.execute命令末尾添加.fetchone（）来解决：

val splitFlexType = udf((typepath: String) =>  typepath.split("/").last)

您必须使用.fetchone（返回单个结果）或.fetchall（返回所有结果），才能对SQLAlchemy命令返回的resultProxy对象使用索引。

TypeError：“ ResultProxy”对象在尝试将用户ID存储在会话中时不支持索引

2 个答案: