Multiple Instances Of The Same Form Field

I have invite form with two fields defined as person and email as follows: class InviteForm(Form): person = TextField('person', validators=[validators.Required('Please enter pe

Solution 1:

What you're looking for is FormField which lets you build a list of the WTF Fields (or groups even).

Here's a simple example-- it'll render three string fields as a html list because that's the minimum required. If you want to add extras via javascript, then just adhere to the same naming scheme, in the case below, a fourth would have a name of person-3.

from flask import Flask, render_template_string
from flask.ext.wtf import Form
from wtforms import FieldList, StringField

app = Flask(__name__)
app.secret_key = 'TEST'classTestForm(Form):
    person = FieldList(StringField('Person'), min_entries=3, max_entries=10)
    foo = StringField('Test')


@app.route('/', methods=['POST', 'GET'])defexample():
    form = TestForm()
    if form.validate_on_submit():
        print form.person.data
        ## [u'One', u'Two', u'Three']return render_template_string(
        """
            <form method="post" action="#">
            {{ form.hidden_tag() }}
            {{ form.person }}
            <input type="submit"/>
            </form>
        """, form=form)


if __name__ == '__main__':
    app.run(debug=True)