flask-wtforms

Flask WTForms always give false on validate_on_submit()

独自空忆成欢 提交于 2019-12-02 01:15:33
I have created a signup form using wtforms. I am using FormField in it so that I don't have to repeat some of the elements of the form again. But whenever I click on the Submit button it always give me false on validate_on_submit method invocation. Not getting why is this happening. My form.py is as follows: class ProfileInfoForm(Form): firstname = TextField('firstname', validators= [validators.Required("Please enter First name.")]) lastname = TextField('lastname', validators= [validators.Required("Please enter Last name.")]) email = EmailField('email', validators= [validators.Required("Please

Custom validators in WTForms using Flask

这一生的挚爱 提交于 2019-12-01 16:24:20
I need to make a custom validator in WTForms where the input is to be: number : number - e.g. 2:1 match1 = StringField('Russia-Saudi Arabia', validators=[DataRequired()]) So, my question is - how to create such validator? I've looked upon the documentation at http://wtforms.readthedocs.io/en/latest/validators.html , but was not very helpful (for me) in this case. Thanks in advance Joost You can write a custom validator within a form by writing a validate_{field_name} method. If it raises a ValidationError , the form will not be valid and will display the error. For your specific case, here's a

Custom validators in WTForms using Flask

谁说我不能喝 提交于 2019-12-01 15:23:30
问题 I need to make a custom validator in WTForms where the input is to be: number : number - e.g. 2:1 match1 = StringField('Russia-Saudi Arabia', validators=[DataRequired()]) So, my question is - how to create such validator? I've looked upon the documentation at http://wtforms.readthedocs.io/en/latest/validators.html, but was not very helpful (for me) in this case. Thanks in advance 回答1: You can write a custom validator within a form by writing a validate_{field_name} method. If it raises a

Flask file not detecting on upload

五迷三道 提交于 2019-12-01 11:36:42
I made a flask_wtf Form with this field: logo_image = FileField('logo_image', validators=[FileRequired(), FileAllowed(['jpg', 'png'], 'Images only!')]) My form looks like this: <form action="" method="POST" name="app_branding" enctype="multipart/form-data"> {{ form.csrf_token }} {{ form.brand.label }} {{ form.brand }} {{ form.logo_image.label }} {{ form.logo_image }} {{ form.title_text.label }} {{ form.title_text }} {{ form.first_paragraph.label }} {{ form.first_paragraph }} {{ form.faq.label }} {{ form.faq }} {{ form.privacy_policy.label }} {{ form.privacy_policy }} {{ form.success_message

Flask file not detecting on upload

痞子三分冷 提交于 2019-12-01 07:37:58
问题 I made a flask_wtf Form with this field: logo_image = FileField('logo_image', validators=[FileRequired(), FileAllowed(['jpg', 'png'], 'Images only!')]) My form looks like this: <form action="" method="POST" name="app_branding" enctype="multipart/form-data"> {{ form.csrf_token }} {{ form.brand.label }} {{ form.brand }} {{ form.logo_image.label }} {{ form.logo_image }} {{ form.title_text.label }} {{ form.title_text }} {{ form.first_paragraph.label }} {{ form.first_paragraph }} {{ form.faq.label

Flask: conditional validation on multiple form fields

冷暖自知 提交于 2019-12-01 06:06:01
Let me start with usual - I'm new to both Python & Flask. Before posting this question (my first ever here) I have spent number of hours searching and experimenting, unfortunately with no luck so far. I am building web form where user can define firewall rules, which subsequently get recorded in the database. I am at the validation stage and I came up to a wall here... hopefully someone will be able to help me out. My (simplified here) form has 2 fields - src_ip and dst_ip: class FirewallRule(Form) src_ip = StringField('Source IP') dst_ip = StringField('Destination IP') and my validation

Flask WTForms: Why is my POST request to upload a file not sending the file data?

 ̄綄美尐妖づ 提交于 2019-12-01 05:36:00
I am trying to make a form to upload a file, but the file data is not being sent with the request. I'm manually navigating to my file and hitting submit. My FileRequired validator fails. (And if I don't include it the data field on form.scan_file is empty.) Here's my form: from flask_wtf import FlaskForm from flask_wtf.file import FileField, FileAllowed, FileRequired class ScanForm(FlaskForm): scan_file = FileField(validators=[FileAllowed(['nii', 'nii.gz', 'zip']), FileRequired()]) Here's my views.py : from flask import Blueprint, render_template, request, flash, redirect, url_for, session

Flask: conditional validation on multiple form fields

可紊 提交于 2019-12-01 04:40:50
问题 Let me start with usual - I'm new to both Python & Flask. Before posting this question (my first ever here) I have spent number of hours searching and experimenting, unfortunately with no luck so far. I am building web form where user can define firewall rules, which subsequently get recorded in the database. I am at the validation stage and I came up to a wall here... hopefully someone will be able to help me out. My (simplified here) form has 2 fields - src_ip and dst_ip: class FirewallRule

WTForms creating a custom widget

*爱你&永不变心* 提交于 2019-12-01 04:07:11
The WTForms documentation is woefully inadequate, they don't even show you one single example of a custom widget that isn't derived from another widget already. I am trying to make a button type, that isn't an <input> in html: submit = InlineButton(name='submit', type='submit', title='Save this page', textWithinSpan='Save') This is what I'm trying: from flask.ext.wtf import Required, Length, EqualTo, Field, TextInput, html_params from flask import Markup class InlineButtonWidget(object): text = '' html_params = staticmethod(html_params) def __init__(self, input_type='submit', **kwargs): self

Type error on calling validate in wtforms

廉价感情. 提交于 2019-12-01 02:27:28
问题 I have TypeError in line where I call 'validate()' on my form. The error is: Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1836, in __call__ return self.wsgi_app(environ, start_response) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1820, in wsgi_app response = self.make_response(self.handle_exception(e)) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1403, in handle_exception reraise(exc_type, exc