Pycloud/app/forms.py

from flask_login import current_user
from app import words
from flask_wtf import FlaskForm
from flask_wtf.file import FileField, FileRequired
from wtforms import SubmitField, PasswordField, StringField, BooleanField, SelectField
from wtforms.validators import DataRequired, EqualTo, ValidationError
from app.models import User
users_list=[]
for users in User.query.all():
	users_list.append(users.username)

class UploadForm(FlaskForm):
	uploadfile = FileField(words['termUploadFile'], validators=[FileRequired()])
	submit = SubmitField(words['termSubmit'])
	filename_choose = StringField(words['termFilename'])
	folder = SelectField(words['termUsers'], choices=users_list, validate_choice=False)

class LoginForm(FlaskForm):
	username = StringField(words['termUsername'], validators=[DataRequired()])
	password = PasswordField(words['termPassword'], validators=[DataRequired()])
	remember_me = BooleanField(words['termRememberMe'])
	submit = SubmitField(words['termSubmit'])

class RegisterForm(FlaskForm):
	username = StringField(words['termUsername'], validators=[DataRequired()])
	password = PasswordField(words['termPassword'], validators=[DataRequired()])
	repeatpassword = PasswordField(words['termRepeatPassword'], validators=[DataRequired(), EqualTo('password')])
	isAdmin = BooleanField(words['termIsAdmin'])
	submit = SubmitField(words['termSubmit'])

	def validate_username(self, username):
		user = User.query.filter_by(username=username.data).first()
		if user is not None:
			raise ValidationError(words['ErrorUsername'])