Я делаю простое приложение формы фляги от wtforms. после отправки сообщения для InputRequired() и длины PasswordField сообщения не отображались на временном веб-сайте.
это app.py
from flask import Flask, render_template, request
from modules.forms import Login
app = Flask(__name__)
app.config['SECRET_KEY'] = 'this is my SEC_KEY'
@app.route('/', methods = ['POST', 'GET'])
def home():
form = Login()
return render_template('index.html', form = form)
@app.route('/show')
def show():
return render_template('show.html')
if __name__ == "__main__":
app.run()
это forms.py в каталоге Module
from wtforms import StringField, PasswordField, SubmitField
from wtforms.validators import InputRequired, Length
from flask_wtf import FlaskForm
class Login(FlaskForm):
email = StringField(validators=[InputRequired(message='please input Email')])
password = PasswordField(validators=[InputRequired(message='please input password'), Length(min=4, max=10, message='this is not Password')])
submit = SubmitField('Enter')
и, наконец, мой шаблон файла index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<form action="#">
{{form.email(placeholder="Email Address")}}
{% for err in form.email.errors %}
<p style="color: red;">{{err}}</p>
{% endfor %}
<br>
{{form.password(placeholder="Password")}}
{% for err in form.email.errors %}
<p style="color: red;">{{err}}</p>
{% endfor %}
<br>
{{form.submit}}
</form>
</body>
</html>
