wtforms will not return form.validate() as true [duplicate]Form is never valid with WTFormsReturn JSON response from Flask viewwtforms, CSRF, flask, FieldListMultiple forms in a single page using flask and WTFormsWTForms BooleanField treats JSON false value as truechained selectfield in wtforms FlaskFlask-WTForms form.validate() fails on dynamic choicesWtforms custom validation message ignoredHow to enter a list in WTForms?Active character count of wtforms TextAreaField
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wtforms will not return form.validate() as true [duplicate]
Form is never valid with WTFormsReturn JSON response from Flask viewwtforms, CSRF, flask, FieldListMultiple forms in a single page using flask and WTFormsWTForms BooleanField treats JSON false value as truechained selectfield in wtforms FlaskFlask-WTForms form.validate() fails on dynamic choicesWtforms custom validation message ignoredHow to enter a list in WTForms?Active character count of wtforms TextAreaField
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
This question already has an answer here:
Form is never valid with WTForms
1 answer
I'm trying to validate inputs for a contact form loosely following Lalith Polepeddi's tutorial. I have used this tutorial before with slight adjustments, but this time the inputs will not validate no matter what I try.
if form.validate() in my routes.py always returns false. I uploaded the (entire venv to github with only the offending code)https://github.com/1988mazdab2000/wtfwtf.git
forms.py file:
class ContactForm(Form):
name = TextField("Name", [validators.Required("Please enter your name.")])
email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")])
subject = TextField("Subject", [validators.Required("Please enter a subject.")])
message = TextAreaField("Message", [validators.Required("Please enter a message.")])
submit = SubmitField("Send")
my routes.py file:
from flask import render_template, request, flash
from forms import ContactForm
from flask_mail import Message, Mail
mail = Mail()
@app.route('/')
def home():
return render_template('home.html')
@app.route('/about')
def about():
return render_template('about.html')
@app.route('/contact', methods=['GET', 'POST'])
def contact():
form = ContactForm()
if request.method == 'POST':
if form.validate() == False:
flash('All fields are required.')
return render_template('contact.html', form=form)
else:
msg = Message(form.subject.data, sender='contact@example.com', recipients=['your_email@example.com'])
msg.body = """
From: %s <%s>
%s
""" % (form.name.data, form.email.data, form.message.data)
mail.send(msg)
return render_template('contact.html', success=True)
elif request.method == 'GET':
return render_template('contact.html', form=form)
any help with this would be greatly appreciated. I have used identical code to do this in the last three months and I'm stuck.
I've tried using different validators and started with a fresh install of raspbian on two different Pis.
I'd like for the form validators to work properly.
flask flask-wtforms
asked Mar 25 at 4:56
dayot538dayot538
11
marked as duplicate by davidism flask
Users with the flask badge can single-handedly close flask questions as duplicates and reopen them as needed.
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Mar 25 at 14:04
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
This question already has an answer here:
Form is never valid with WTForms
1 answer
I'm trying to validate inputs for a contact form loosely following Lalith Polepeddi's tutorial. I have used this tutorial before with slight adjustments, but this time the inputs will not validate no matter what I try.
if form.validate() in my routes.py always returns false. I uploaded the (entire venv to github with only the offending code)https://github.com/1988mazdab2000/wtfwtf.git
forms.py file:
class ContactForm(Form):
name = TextField("Name", [validators.Required("Please enter your name.")])
email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")])
subject = TextField("Subject", [validators.Required("Please enter a subject.")])
message = TextAreaField("Message", [validators.Required("Please enter a message.")])
submit = SubmitField("Send")
my routes.py file:
from flask import render_template, request, flash
from forms import ContactForm
from flask_mail import Message, Mail
mail = Mail()
@app.route('/')
def home():
return render_template('home.html')
@app.route('/about')
def about():
return render_template('about.html')
@app.route('/contact', methods=['GET', 'POST'])
def contact():
form = ContactForm()
if request.method == 'POST':
if form.validate() == False:
flash('All fields are required.')
return render_template('contact.html', form=form)
else:
msg = Message(form.subject.data, sender='contact@example.com', recipients=['your_email@example.com'])
msg.body = """
From: %s <%s>
%s
""" % (form.name.data, form.email.data, form.message.data)
mail.send(msg)
return render_template('contact.html', success=True)
elif request.method == 'GET':
return render_template('contact.html', form=form)
any help with this would be greatly appreciated. I have used identical code to do this in the last three months and I'm stuck.
I've tried using different validators and started with a fresh install of raspbian on two different Pis.
I'd like for the form validators to work properly.
flask flask-wtforms
asked Mar 25 at 4:56
dayot538dayot538
11
marked as duplicate by davidism flask
Users with the flask badge can single-handedly close flask questions as duplicates and reopen them as needed.
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Mar 25 at 14:04
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
your GitHub link is not working
– Harun-Ur-Rashid
Mar 25 at 5:19
Fixed, sorry about that
– dayot538
Mar 25 at 5:31
did you check validate_on_submit ?
– VillageMonkey
Mar 25 at 5:50
add a comment |
This question already has an answer here:
Form is never valid with WTForms
1 answer
I'm trying to validate inputs for a contact form loosely following Lalith Polepeddi's tutorial. I have used this tutorial before with slight adjustments, but this time the inputs will not validate no matter what I try.
if form.validate() in my routes.py always returns false. I uploaded the (entire venv to github with only the offending code)https://github.com/1988mazdab2000/wtfwtf.git
forms.py file:
class ContactForm(Form):
name = TextField("Name", [validators.Required("Please enter your name.")])
email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")])
subject = TextField("Subject", [validators.Required("Please enter a subject.")])
message = TextAreaField("Message", [validators.Required("Please enter a message.")])
submit = SubmitField("Send")
my routes.py file:
from flask import render_template, request, flash
from forms import ContactForm
from flask_mail import Message, Mail
mail = Mail()
@app.route('/')
def home():
return render_template('home.html')
@app.route('/about')
def about():
return render_template('about.html')
@app.route('/contact', methods=['GET', 'POST'])
def contact():
form = ContactForm()
if request.method == 'POST':
if form.validate() == False:
flash('All fields are required.')
return render_template('contact.html', form=form)
else:
msg = Message(form.subject.data, sender='contact@example.com', recipients=['your_email@example.com'])
msg.body = """
From: %s <%s>
%s
""" % (form.name.data, form.email.data, form.message.data)
mail.send(msg)
return render_template('contact.html', success=True)
elif request.method == 'GET':
return render_template('contact.html', form=form)
any help with this would be greatly appreciated. I have used identical code to do this in the last three months and I'm stuck.
I've tried using different validators and started with a fresh install of raspbian on two different Pis.
I'd like for the form validators to work properly.
flask flask-wtforms
asked Mar 25 at 4:56
dayot538dayot538
11
This question already has an answer here:
Form is never valid with WTForms
1 answer
I'm trying to validate inputs for a contact form loosely following Lalith Polepeddi's tutorial. I have used this tutorial before with slight adjustments, but this time the inputs will not validate no matter what I try.
if form.validate() in my routes.py always returns false. I uploaded the (entire venv to github with only the offending code)https://github.com/1988mazdab2000/wtfwtf.git
forms.py file:
class ContactForm(Form):
name = TextField("Name", [validators.Required("Please enter your name.")])
email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")])
subject = TextField("Subject", [validators.Required("Please enter a subject.")])
message = TextAreaField("Message", [validators.Required("Please enter a message.")])
submit = SubmitField("Send")
my routes.py file:
from flask import render_template, request, flash
from forms import ContactForm
from flask_mail import Message, Mail
mail = Mail()
@app.route('/')
def home():
return render_template('home.html')
@app.route('/about')
def about():
return render_template('about.html')
@app.route('/contact', methods=['GET', 'POST'])
def contact():
form = ContactForm()
if request.method == 'POST':
if form.validate() == False:
flash('All fields are required.')
return render_template('contact.html', form=form)
else:
msg = Message(form.subject.data, sender='contact@example.com', recipients=['your_email@example.com'])
msg.body = """
From: %s <%s>
%s
""" % (form.name.data, form.email.data, form.message.data)
mail.send(msg)
return render_template('contact.html', success=True)
elif request.method == 'GET':
return render_template('contact.html', form=form)
any help with this would be greatly appreciated. I have used identical code to do this in the last three months and I'm stuck.
I've tried using different validators and started with a fresh install of raspbian on two different Pis.
I'd like for the form validators to work properly.
This question already has an answer here:
Form is never valid with WTForms
1 answer
flask flask-wtforms
flask flask-wtforms
asked Mar 25 at 4:56
dayot538dayot538
11
asked Mar 25 at 4:56
dayot538dayot538
11
edited Mar 25 at 5:29
dayot538
asked Mar 25 at 4:56
dayot538dayot538
11
asked Mar 25 at 4:56
dayot538dayot538
11
asked Mar 25 at 4:56
dayot538dayot538
11
11
marked as duplicate by davidism flask
Users with the flask badge can single-handedly close flask questions as duplicates and reopen them as needed.
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Mar 25 at 14:04
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by davidism flask
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Mar 25 at 14:04
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
your GitHub link is not working
– Harun-Ur-Rashid
Mar 25 at 5:19
Fixed, sorry about that
– dayot538
Mar 25 at 5:31
did you check validate_on_submit ?
– VillageMonkey
Mar 25 at 5:50
add a comment |
your GitHub link is not working
– Harun-Ur-Rashid
Mar 25 at 5:19
Fixed, sorry about that
– dayot538
Mar 25 at 5:31
did you check validate_on_submit ?
– VillageMonkey
Mar 25 at 5:50
your GitHub link is not working
– Harun-Ur-Rashid
Mar 25 at 5:19
your GitHub link is not working
– Harun-Ur-Rashid
Mar 25 at 5:19
Fixed, sorry about that
– dayot538
Mar 25 at 5:31
Fixed, sorry about that
– dayot538
Mar 25 at 5:31
did you check validate_on_submit ?
– VillageMonkey
Mar 25 at 5:50
did you check validate_on_submit ?
– VillageMonkey
Mar 25 at 5:50
add a comment |
2 Answers
2
active
oldest
votes
As @VillageMonkey said, use validate_on_submit. More can be found in official documentation.
Here is an example of using form validation using Flask-WTF. In this example, the login form requires a valid email address and a password with at least 6 and at most 35 characters long.
app.py:
from flask import render_template, url_for, request, redirect, flash, Flask
from forms import LoginForm
app = Flask(__name__)
app.secret_key = 'secret key'
@app.route("/login", methods=['GET', 'POST'])
def login():
form = LoginForm()
if request.method == 'POST':
if form.validate_on_submit() == False:
flash('Form validation failed')
return render_template('login.html', form=form)
user_email = form.email.data
user_password = form.password.data
if user_email and user_password:
return " - ".format(user_email, user_password)
return render_template('login.html', form=form)
if __name__ == '__main__':
app.run(debug=True)
forms.py:
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo
class LoginForm(FlaskForm):
email = StringField('Email', validators=[DataRequired(), Email()])
password = PasswordField('Password', validators=[DataRequired(), Length(min=6, max=35)])
submit = SubmitField('Login')
login.html:
<!DOCTYPE html>
<html>
<head>
<title>Login</title>
</head>
<body>
% with messages = get_flashed_messages() %
% if messages %
<ul class=flashes>
% for message in messages %
<li> message </li>
% endfor %
</ul>
% endif %
% endwith %
<form method="POST" action="">
form.csrf_token
<div>
form.email.label form.email
% if form.email.errors %
<ul style="color: red;">
% for error in form.email.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.password.label form.password
% if form.password.errors %
<ul style="color: red;">
% for error in form.password.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.submit
</div>
</form>
</body>
</html>
Directory structure:
.
├── app.py
├── forms.py
└── templates
└── login.html
requirements.txt:
Click==7.0
Flask==1.0.2
Flask-WTF==0.14.2
itsdangerous==1.1.0
Jinja2==2.10
MarkupSafe==1.1.1
Werkzeug==0.15.0
WTForms==2.2.1
Output:
Get request of login route:
Post request of login route (failed validation):
Post request of login route (after successful validation):
answered Mar 25 at 6:41
arshoarsho
4,63821838
add a comment |
In the template use form.hidden_tag() for csrf protection.
<form action=" url_for('contact') " method="post">
form.hidden_tag()
</form>
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
As @VillageMonkey said, use validate_on_submit. More can be found in official documentation.
Here is an example of using form validation using Flask-WTF. In this example, the login form requires a valid email address and a password with at least 6 and at most 35 characters long.
app.py:
from flask import render_template, url_for, request, redirect, flash, Flask
from forms import LoginForm
app = Flask(__name__)
app.secret_key = 'secret key'
@app.route("/login", methods=['GET', 'POST'])
def login():
form = LoginForm()
if request.method == 'POST':
if form.validate_on_submit() == False:
flash('Form validation failed')
return render_template('login.html', form=form)
user_email = form.email.data
user_password = form.password.data
if user_email and user_password:
return " - ".format(user_email, user_password)
return render_template('login.html', form=form)
if __name__ == '__main__':
app.run(debug=True)
forms.py:
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo
class LoginForm(FlaskForm):
email = StringField('Email', validators=[DataRequired(), Email()])
password = PasswordField('Password', validators=[DataRequired(), Length(min=6, max=35)])
submit = SubmitField('Login')
login.html:
<!DOCTYPE html>
<html>
<head>
<title>Login</title>
</head>
<body>
% with messages = get_flashed_messages() %
% if messages %
<ul class=flashes>
% for message in messages %
<li> message </li>
% endfor %
</ul>
% endif %
% endwith %
<form method="POST" action="">
form.csrf_token
<div>
form.email.label form.email
% if form.email.errors %
<ul style="color: red;">
% for error in form.email.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.password.label form.password
% if form.password.errors %
<ul style="color: red;">
% for error in form.password.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.submit
</div>
</form>
</body>
</html>
Directory structure:
.
├── app.py
├── forms.py
└── templates
└── login.html
requirements.txt:
Click==7.0
Flask==1.0.2
Flask-WTF==0.14.2
itsdangerous==1.1.0
Jinja2==2.10
MarkupSafe==1.1.1
Werkzeug==0.15.0
WTForms==2.2.1
Output:
Get request of login route:
Post request of login route (failed validation):
Post request of login route (after successful validation):
answered Mar 25 at 6:41
arshoarsho
4,63821838
add a comment |
As @VillageMonkey said, use validate_on_submit. More can be found in official documentation.
Here is an example of using form validation using Flask-WTF. In this example, the login form requires a valid email address and a password with at least 6 and at most 35 characters long.
app.py:
from flask import render_template, url_for, request, redirect, flash, Flask
from forms import LoginForm
app = Flask(__name__)
app.secret_key = 'secret key'
@app.route("/login", methods=['GET', 'POST'])
def login():
form = LoginForm()
if request.method == 'POST':
if form.validate_on_submit() == False:
flash('Form validation failed')
return render_template('login.html', form=form)
user_email = form.email.data
user_password = form.password.data
if user_email and user_password:
return " - ".format(user_email, user_password)
return render_template('login.html', form=form)
if __name__ == '__main__':
app.run(debug=True)
forms.py:
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo
class LoginForm(FlaskForm):
email = StringField('Email', validators=[DataRequired(), Email()])
password = PasswordField('Password', validators=[DataRequired(), Length(min=6, max=35)])
submit = SubmitField('Login')
login.html:
<!DOCTYPE html>
<html>
<head>
<title>Login</title>
</head>
<body>
% with messages = get_flashed_messages() %
% if messages %
<ul class=flashes>
% for message in messages %
<li> message </li>
% endfor %
</ul>
% endif %
% endwith %
<form method="POST" action="">
form.csrf_token
<div>
form.email.label form.email
% if form.email.errors %
<ul style="color: red;">
% for error in form.email.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.password.label form.password
% if form.password.errors %
<ul style="color: red;">
% for error in form.password.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.submit
</div>
</form>
</body>
</html>
Directory structure:
.
├── app.py
├── forms.py
└── templates
└── login.html
requirements.txt:
Click==7.0
Flask==1.0.2
Flask-WTF==0.14.2
itsdangerous==1.1.0
Jinja2==2.10
MarkupSafe==1.1.1
Werkzeug==0.15.0
WTForms==2.2.1
Output:
Get request of login route:
Post request of login route (failed validation):
Post request of login route (after successful validation):
answered Mar 25 at 6:41
arshoarsho
4,63821838
add a comment |
As @VillageMonkey said, use validate_on_submit. More can be found in official documentation.
Here is an example of using form validation using Flask-WTF. In this example, the login form requires a valid email address and a password with at least 6 and at most 35 characters long.
app.py:
from flask import render_template, url_for, request, redirect, flash, Flask
from forms import LoginForm
app = Flask(__name__)
app.secret_key = 'secret key'
@app.route("/login", methods=['GET', 'POST'])
def login():
form = LoginForm()
if request.method == 'POST':
if form.validate_on_submit() == False:
flash('Form validation failed')
return render_template('login.html', form=form)
user_email = form.email.data
user_password = form.password.data
if user_email and user_password:
return " - ".format(user_email, user_password)
return render_template('login.html', form=form)
if __name__ == '__main__':
app.run(debug=True)
forms.py:
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo
class LoginForm(FlaskForm):
email = StringField('Email', validators=[DataRequired(), Email()])
password = PasswordField('Password', validators=[DataRequired(), Length(min=6, max=35)])
submit = SubmitField('Login')
login.html:
<!DOCTYPE html>
<html>
<head>
<title>Login</title>
</head>
<body>
% with messages = get_flashed_messages() %
% if messages %
<ul class=flashes>
% for message in messages %
<li> message </li>
% endfor %
</ul>
% endif %
% endwith %
<form method="POST" action="">
form.csrf_token
<div>
form.email.label form.email
% if form.email.errors %
<ul style="color: red;">
% for error in form.email.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.password.label form.password
% if form.password.errors %
<ul style="color: red;">
% for error in form.password.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.submit
</div>
</form>
</body>
</html>
Directory structure:
.
├── app.py
├── forms.py
└── templates
└── login.html
requirements.txt:
Click==7.0
Flask==1.0.2
Flask-WTF==0.14.2
itsdangerous==1.1.0
Jinja2==2.10
MarkupSafe==1.1.1
Werkzeug==0.15.0
WTForms==2.2.1
Output:
Get request of login route:
Post request of login route (failed validation):
Post request of login route (after successful validation):
answered Mar 25 at 6:41
arshoarsho
4,63821838
As @VillageMonkey said, use validate_on_submit. More can be found in official documentation.
Here is an example of using form validation using Flask-WTF. In this example, the login form requires a valid email address and a password with at least 6 and at most 35 characters long.
app.py:
from flask import render_template, url_for, request, redirect, flash, Flask
from forms import LoginForm
app = Flask(__name__)
app.secret_key = 'secret key'
@app.route("/login", methods=['GET', 'POST'])
def login():
form = LoginForm()
if request.method == 'POST':
if form.validate_on_submit() == False:
flash('Form validation failed')
return render_template('login.html', form=form)
user_email = form.email.data
user_password = form.password.data
if user_email and user_password:
return " - ".format(user_email, user_password)
return render_template('login.html', form=form)
if __name__ == '__main__':
app.run(debug=True)
forms.py:
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo
class LoginForm(FlaskForm):
email = StringField('Email', validators=[DataRequired(), Email()])
password = PasswordField('Password', validators=[DataRequired(), Length(min=6, max=35)])
submit = SubmitField('Login')
login.html:
<!DOCTYPE html>
<html>
<head>
<title>Login</title>
</head>
<body>
% with messages = get_flashed_messages() %
% if messages %
<ul class=flashes>
% for message in messages %
<li> message </li>
% endfor %
</ul>
% endif %
% endwith %
<form method="POST" action="">
form.csrf_token
<div>
form.email.label form.email
% if form.email.errors %
<ul style="color: red;">
% for error in form.email.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.password.label form.password
% if form.password.errors %
<ul style="color: red;">
% for error in form.password.errors %
<li> error </li>
% endfor %
</ul>
% endif %
</div>
<div>
form.submit
</div>
</form>
</body>
</html>
Directory structure:
.
├── app.py
├── forms.py
└── templates
└── login.html
requirements.txt:
Click==7.0
Flask==1.0.2
Flask-WTF==0.14.2
itsdangerous==1.1.0
Jinja2==2.10
MarkupSafe==1.1.1
Werkzeug==0.15.0
WTForms==2.2.1
Output:
Get request of login route:
Post request of login route (failed validation):
Post request of login route (after successful validation):
answered Mar 25 at 6:41
arshoarsho
4,63821838
answered Mar 25 at 6:41
arshoarsho
4,63821838
answered Mar 25 at 6:41
arshoarsho
4,63821838
answered Mar 25 at 6:41
arshoarsho
4,63821838
4,63821838
add a comment |
add a comment |
In the template use form.hidden_tag() for csrf protection.
<form action=" url_for('contact') " method="post">
form.hidden_tag()
</form>
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
add a comment |
In the template use form.hidden_tag() for csrf protection.
<form action=" url_for('contact') " method="post">
form.hidden_tag()
</form>
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
add a comment |
In the template use form.hidden_tag() for csrf protection.
<form action=" url_for('contact') " method="post">
form.hidden_tag()
</form>
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
In the template use form.hidden_tag() for csrf protection.
<form action=" url_for('contact') " method="post">
form.hidden_tag()
</form>
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
edited Mar 26 at 5:06
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
answered Mar 25 at 6:21
VillageMonkeyVillageMonkey
968
968
add a comment |
add a comment |
your GitHub link is not working
– Harun-Ur-Rashid
Mar 25 at 5:19
Fixed, sorry about that
– dayot538
Mar 25 at 5:31
did you check validate_on_submit ?
– VillageMonkey
Mar 25 at 5:50