old_contents: from flask import Blueprint, render_template, request, redirect, url_for, session, flash
  from app.core.db import db
  from .forms import InputID
  from .models import User, Question, User_answer
  
  vote_views = Blueprint('vote', __name__, template_folder='../templates', static_folder='../static')
  
  #Index route
  @vote_views.route('/', methods=['GET', 'POST'])
  def inputID():
      if 'user_id' in session:
          return redirect(url_for('.question', id=1))
      form = InputID()
      #handle POST method
      if form.validate_on_submit():
          user = User.query.filter_by(email=form.email.data).first()
          if not user:
              user = User(form.full_name.data, form.email.data, form.birthday.data)
              db.session.add(user)
              db.session.commit()
              session['user_id'] = user.id
              return redirect(url_for('.question', id=1))
          form.email.errors.append("Email has been registered")
      #handle GET method
      return render_template('inputID.html', form=form)
  
  
  #vote route
  @vote_views.route('/question/', defaults={'id':1}, methods=['POST', 'GET'])
  @vote_views.route('/question/<id>', methods=['POST', 'GET'])
  def question(id):
      #check session
      if "user_id" not in session:
          flash("You're not registered, Enter your date if you wanto register")
          return redirect(url_for('.inputID'))
  
      ####Handle question view####
      question = Question.query.get(id)
      for x in Question.query.all():
          if not User_answer.query.filter_by(user_id=session['user_id'], question_id=x.id).first():
              question = Question.query.get(x.id)
              break
      else:
          return redirect(url_for('.thanks'))
  
      #handle post method
      if request.method == "POST":
          if request.form["answer"] == "YES": answer = 1
          else: answer = 0
          db.session.add(User_answer(session["user_id"], question.id, answer))
          db.session.commit()
          return redirect(url_for('.question', id=1))
  
      ### HANDLE GET METHOD ###
      return render_template('question.html', question=question)
  
  @vote_views.route('/thanks/')
  def thanks():
      #check session
      if 'user_id' in session:
          #check count the number of questions answered
          if Question.query.count() is not User_answer.query.filter_by(user_id=session['user_id']).count():
              flash("You must answer all question!")
              return redirect(url_for('.question', id=1))
          #remove all session
          session.clear()
      else:
          flash("You must register to Answer question")
          return redirect(url_for('.inputID'))
      return render_template('thanks.html')
  
new_contents: from flask import Blueprint, render_template, request, redirect, url_for, session, flash
  from app.core.db import db
  from .forms import InputID
  from .models import User, Question, User_answer
  
  vote_views = Blueprint('vote', __name__, template_folder='../templates', static_folder='../static')
  
  #Index route
  @vote_views.route('/', methods=['GET', 'POST'])
  def inputID():
      if 'user_id' in session:
          return redirect(url_for('.question'))
      form = InputID()
      #handle POST method
      if form.validate_on_submit():
          user = User.query.filter_by(email=form.email.data).first()
          if not user:
              user = User(form.full_name.data, form.email.data, form.birthday.data)
              db.session.add(user)
              db.session.commit()
              session['user_id'] = user.id
              return redirect(url_for('.question'))
          form.email.errors.append("Email has been registered")
      #handle GET method
      return render_template('inputID.html', form=form)
  
  
  #vote route
  @vote_views.route('/question/', methods=['POST', 'GET'])
  def question():
      #check session
      if "user_id" not in session:
          flash("You're not registered, Enter your date if you wanto register")
          return redirect(url_for('.inputID'))
  
      ####Handle question view####
      for x in Question.query.all():
          if not User_answer.query.filter_by(user_id=session['user_id'], question_id=x.id).first():
              question = Question.query.get(x.id)
              break
      else:
          return redirect(url_for('.thanks'))
  
      #handle post method
      if request.method == "POST":
          if request.form["answer"] == "YES": answer = 1
          else: answer = 0
          db.session.add(User_answer(session["user_id"], question.id, answer))
          db.session.commit()
          return redirect(url_for('.question'))
  
      ### HANDLE GET METHOD ###
      return render_template('question.html', question=question)
  
  @vote_views.route('/thanks/')
  def thanks():
      #check session
      if 'user_id' in session:
          #check count the number of questions answered
          if Question.query.count() is not User_answer.query.filter_by(user_id=session['user_id']).count():
              flash("You must answer all question!")
              return redirect(url_for('.question'))
          #remove all session
          session.clear()
      else:
          flash("You must register to Answer question")
          return redirect(url_for('.inputID'))
      return render_template('thanks.html')
  
subject: change route method in question view