from flask import Flask
from flask import json, make_response, render_template_string, request
from flask_wtf import Form
from wtforms import IntegerField, SelectField
from wtforms.validators import DataRequired
template = """
"""
app = Flask(__name__)
app.config['WTF_CSRF_ENABLED'] = True
app.config['SECRET_KEY'] = 'you-will-never-guess'
class SelectDevice(Form):
deviceAddress = SelectField('device number')
selectAmount = IntegerField('amount devices',
[DataRequired()],
default = 3)
def __init__(self, *args, **kwargs):
super(SelectDevice, self).__init__(*args, **kwargs)
defaultAmount = self.selectAmount.data
self.deviceAddress.choices = [('device{}'.format(i), i) for i in range(defaultAmount)]
@app.route('/')
@app.route('/selectform', methods=['GET'])
def select():
form = SelectDevice()
return render_template_string(template, form=form)
@app.route('/selectform', methods=['POST'])
def updateselect():
deviceAmount = int(request.form.get('selectAmount'))
choices = [('device{}'.format(i), i) for i in range(deviceAmount)]
response = make_response(json.dumps(choices))
response.content_type = 'application/jsons'
return response
if __name__ == '__main__':
app.run()