app/auth/routes.py

routes.py

from flask import render_template, redirect, url_for, flash, render_template_string
from sqlalchemy import select

from flask_login import current_user

from app import db
from app.models import User
from app.auth import bp
from app.auth.forms import ResetPasswordRequestForm

@bp.route("/reset_password", methods=["GET", "POST"])
def reset_password_request():
    if current_user.is_authenticated:
        return redirect(url_for("main.index"))

    form = ResetPasswordRequestForm()
    if form.validate_on_submit():
        user_select = select(User).where(User.email == form.email.data)
        user = db.session.scalar(user_select)

        if user:
            send_reset_password_email(user)

	    flash(
		"Instructions to reset your password were sent to your email address,"
		" if it exists in our system."
	    )

        return redirect(url_for("auth.reset_password_request"))

    return render_template(
        "auth/reset_password_request.html", title="Reset Password", form=form
    )