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from app import app
from flask import render_template, session, request, redirect
import db_actions as D
@app.route("/set/nick",methods=["POST"])
def new_nick():
nick = request.form["nick"]
if "id" in session.keys():
msg = "You already have a nick."
elif D.user_exists(nick):
msg = "Nick is already reserved."
elif msg := invalid_nick(nick):
pass
else:
session["id"] = D.user_new(nick)
return redirect("/")
session["alert"]="Nick in not created: "+msg
return redirect("/#nick")
def invalid_nick(nick):
if len(nick)<4:
return "Nick is too short"
if not nick.isalnum():
return "Only letters and numbers are allowed"
return 0
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