To create a sign up page, I ask to the user his informations (name, surname, email, password), then I put this info on my database, but it always save as NULL. (I use DB browser). I search a lot to solve this, I tried all I found, but nothing solved this. This is my HTML script:
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg bg-light">
<div class="container-fluid">
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="/login">Login</a>
</li>
</ul>
</div>
</div>
</nav>
<div class="container">
<div class="row">
<div class="col-sm-9 col-md-7 col-lg-5 mx-auto">
<div class="card border-0 shadow rounded-3 my-5">
<div class="card-body p-4 p-sm-5">
<h5 class="card-title text-center mb-5 fw-light fs-5">Sign up</h5>
<form method="post" class="m-5">
<div class="form-floating mb-3">
<input type="text" class="form-control" id="floatingInput1" placeholder="Name"
required="required" value="{{ request.form['name'] }}">
<label for="floatingInput1">Name</label>
</div>
<div class="form-floating mb-3">
<input type="text" class="form-control" id="floatingInput2" placeholder="Surname"
required="required" value="{{ request.form['surname'] }}">
<label for="floatingInput2">Surname</label>
</div>
<div class="form-floating mb-3">
<input type="email" class="form-control" id="floatingInput3" placeholder="name@example.com"
required="required" value="{{ request.form['email'] }}">
<label for="floatingInput3">Email</label>
</div>
<div class="form-floating mb-3">
<input type="password" class="form-control" id="floatingPassword" placeholder="Password"
required="required" value="{{ request.form['password'] }}">
<label for="floatingPassword">Password</label>
</div>
<div class="form-check mb-3">
<input class="form-check-input" type="checkbox" value="" id="rememberPasswordCheck">
<label class="form-check-label" for="rememberPasswordCheck">
Remember password
</label>
</div>
<div class="d-grid">
<button class="btn btn-primary btn-login text-uppercase fw-bold" type="submit">Registrati</button>
</div>
<div class="text-center">
</div>
</form>
</div>
</div>
</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-u1OknCvxWvY5kfmNBILK2hRnQC3Pr17a+RTT6rIHI7NnikvbZlHgTPOOmMi466C8" crossorigin="anonymous"></script>
</body>
</html>
And this is the python script:
import sqlite3
from flask import Flask, render_template, request, redirect
app = Flask(__name__)
def connect_db():
connection = sqlite3.connect('users.db')
connection.row_factory = sqlite3.Row
return connection
@app.route('/')
def index():
connection = connect_db()
posts = connection.execute('SELECT * FROM posts').fetchall()
connection.close()
return render_template('index.html', posts=posts)
@app.route('/login')
def login():
return render_template('login.html')
@app.route('/signup', methods=('GET','POST'))
def signup():
if request.method == 'POST':
name = request.form['name']
surname = request.form['surname']
email = request.form['email']
password = request.form['password']
connection = connect_db()
connection.execute(
'INSERT INTO posts (name, surname, email, password) VALUES (?,?,?,?)',
(name, surname, email, password)
)
connection.commit()
connection.close()
return redirect('/')
return render_template('signup.html')
if __name__ == "__main__":
from waitress import serve
serve(app, host="0.0.0.0", port=8080)
This is the screenshot of the error: flask error and this is the screenshot of the database: database result
