flask-wtforms | 易学教程

Add a CSS class to an option in a WTForms SelectField

阅读更多关于 Add a CSS class to an option in a WTForms SelectField

问题 Can anyone please tell me how to assign css class to choices values. I would like to change the background of each choices with small image, so how can I do it with wtforms and css? class RegisterForm(Form): username = TextField('username', [validators.Length(min=3, max=50), validators.Required()]) img_url = SelectField('avatar', choices=[('static/images/avatars/1.jpg', '1'), ('static/images/avatars/2.jpg', '2'), ('static/images/avatars/3.jpg', '3'), ('static/images/avatars/4.jpg', '4'), (

WTForms: two forms on the same page?

阅读更多关于 WTForms: two forms on the same page?

I have a dynamic web-page that should process two forms: a login form and a register form . I am using WTForms to process the two forms but I am having some trouble making it work, since both forms are being rendered to the same page. The following is the code for the login form of my webpage: PYTHON: class Login(Form): login_user = TextField('Username', [validators.Required()]) login_pass = PasswordField('Password', [validators.Required()]) @application.route('/index', methods=('GET', 'POST')) def index(): l_form = Login(request.form, prefix="login-form") if request.method == 'POST' and l

populate WTForms select field using value selected from previous field

阅读更多关于 populate WTForms select field using value selected from previous field

New to this, trying to build an app following a well known Flask tutorial, using Flask-bootstrap, Flask-wtforms, Jinja etc I have a form with 2 select fields and a button. class Form(FlaskForm): school_year = SelectField('School year', choices=some_tuples_list) category = SelectField('Category', choices=[]) submit = SubmitField('submit') I want only the first field to be pre-populated, and the other to get populated (on the client side?) based on the previous field's selected value. In the template I try something like {{ form.school_year(**{"onchange":"getCategories()"}) }} which works ok

Pre-Populate a WTforms in flask, with data from a SQLAlchemy object

阅读更多关于 Pre-Populate a WTforms in flask, with data from a SQLAlchemy object

I am fairly new to flask framework and was creating an edit profile page for a webportal. I am stuck at a point and am unable to autofill a form. Here is my form class : class EditProfile(Form): username = TextField('Username', [Required()]) email = TextField('Email', [Required()]) about = TextAreaField('About', [Required()]) website = TextField('Website', [Required()]) This is my function that evaluates the form. def editprofile(nickname = None): if g.fas_user['username'] == nickname or request.method == 'POST': form = EditProfile() form_action = url_for('profile.editprofile') if request

Validate WTForm form based on clicked button

阅读更多关于 Validate WTForm form based on clicked button

问题 On my form, I have two buttons that I use for submitting the form. One button deletes selected files (presented in a table, one checkbox to an object) and the other selects them for processing. When the files are selected on deletion, no validation is necessary (beyond checking that at least one file has been selected). However, for processing I need to make sure that there is exactly one file of a certain extension. Basically, I need different validation processes based on which button the

how to use QuerySelectField in flask?

阅读更多关于 how to use QuerySelectField in flask?

I am trying to have a select field filled with the results of a sqlalchemy request in a flask form. Here are the code : def possible_book(): return Book.query.with_entities(Book.id).all() class AuthorForm(Form): familyname = TextField('familyname', [validators.Required()]) firstname = TextField('firstname', [validators.Required()]) book_list = QuerySelectField('book_list',query_factory=possible_book,get_label='title',allow_blank=True) This is the template : <form action="" method="post" name="edit_author" enctype="multipart/form-data"> {{form.hidden_tag()}} <p>Veuillez donner son prénom

AJax does not work with bootstrap-select

阅读更多关于 AJax does not work with bootstrap-select

I found flask-jquery-ajax example where the user selects an item from the vehicle "Make" drop down menu, the vehicle "Model" drop down menu is populated by making an AJAX request for a list of models for the make selected. I tried to replace the drop-down menus by bootstrap-select and as soon as I include class="selectpicker form-control" in the second drop-down menu it does not get any more populated after the first drop-down has been chosen. This is the HTML template: <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Flask Jquery AJAX Drop Down Menu Example</title> <link

Dynamic choices WTForms Flask SelectField

阅读更多关于 Dynamic choices WTForms Flask SelectField

I'm trying to pass userID variable to WTForms with FlaskForms. First I'll show code that works fine and then what I need to modify(that the part I don't know how). I'm adding new Name associated with some group. FlaskForm model: class AddName(FlaskForm): name =StringField('Device name', validators=[InputRequired(),Length(min=4, max=30)]) groupID = SelectField('Payload Type', choices=[(1,"Group1"),(2,"Group2")], validators=[InputRequired]) View model: @app.route('/dashboard/addname', methods=['GET', 'POST']) def addname(): form=AddName() if form.validate_on_submit(): name=Name(form.name.data

Dynamic select field using WTForms not updating

阅读更多关于 Dynamic select field using WTForms not updating

问题 I'm trying to make a dynamic select field using wtforms and sqlalchemy, but it doesn't update when an item is inserted or deleted from the database. Here's my code: class UserForm(Form): username = StringField('Username', validators=[DataRequired()]) password = PasswordField('Password', validators=[DataRequired()]) job = SelectField( 'Job', validators=[DataRequired()], choices=[(a.id, a.name) for a in Job.query.order_by(Job.name)] ) And the database model: class Job(db.Model): id = db.Column

Python Flask SQLAlchemy Pagination

阅读更多关于 Python Flask SQLAlchemy Pagination

问题 I am having trouble implementing pagination with Flask-SQLAlchemy or Flask-Pagination, either or. I am unsure how to initialize the pagination, setting pages, determining pages, offest, etc. I am coming from PHP, quite new to Python. I am querying all the posts in my database posts = Posts.query.order_by(Posts.time.desc()).all() I have been looking at the following examples: http://www.ergo.io/tutorials/better-pagination-in-flask/better-pagination-in-flask/ https://pythonhosted.org/Flask