views: make password optional in user/edit

Add the option to leave the password fields empty in the form.
When the passwords are not set the user keeps the old password
configuration.
Define a EditUserForm based on UserForm in forms/auth.py to remove
the InputRequired validator in the password fields.
Update the html template to make the password fields optional.

1 files changed, 8 insertions, 1 deletions

diff --git a/ogcp/forms/auth.py b/ogcp/forms/auth.py
index 72afe23..d85931b 100644
--- a/ogcp/forms/auth.py
+++ b/ogcp/forms/auth.py
@@ -9,7 +9,7 @@ from wtforms import (
     Form, SubmitField, HiddenField, SelectField, BooleanField, IntegerField,
     StringField, RadioField, PasswordField, SelectMultipleField, widgets
 )
-from wtforms.validators import InputRequired
+from wtforms.validators import InputRequired, Optional
 from flask_wtf import FlaskForm
 from flask_babel import lazy_gettext as _l
 from flask_babel import _
@@ -55,6 +55,13 @@ class UserForm(FlaskForm):
     )
 
 
+class EditUserForm(UserForm):
+    def __init__(self, *args, **kwargs):
+        super(EditUserForm, self).__init__(*args, **kwargs)
+        self.pwd.validators = [Optional()]
+        self.pwd_confirm.validators = [Optional()]
+
+
 class DeleteUserForm(FlaskForm):
     username = HiddenField(
         validators=[InputRequired()]