What is Flask-WTF and how do I use it?
An example of an AI chatbot conversation about Flask-WTF, a Flask extension for forms.
What is Flask-WTF and how do I use it?
Flask-WTF is an extension for Flask that simplifies form handling. It integrates WTForms with Flask, making it easier to create and validate forms.
Can you show me a simple example of a form using Flask-WTF?
Sure! Here's a basic example:
from flask import Flask, render_template, redirect, url_for
from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField
from wtforms.validators import DataRequired
app = Flask(__name__)
app.config['SECRET_KEY'] = 'your_secret_key'
class MyForm(FlaskForm):
name = StringField('Name', validators=[DataRequired()])
submit = SubmitField('Submit')
@app.route('/', methods=['GET', 'POST'])
def home():
form = MyForm()
if form.validate_on_submit():
return redirect(url_for('success'))
return render_template('form.html', form=form)
@app.route('/success')
def success():
return 'Form submitted successfully!'
if __name__ == '__main__':
app.run(debug=True)
What templates do I need to create for this example?
You need a template named form.html that includes the form rendering. Here's a simple example:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flask-WTF Form</title>
</head>
<body>
<form method="POST">
{{ form.hidden_tag() }}
{{ form.name.label }}
{{ form.name(size=32) }}
{{ form.submit() }}
</form>
</body>
</html>
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