create initial user

models/Union.py

@@ -1,4 +1,7 @@
 from mongoengine import *
+from werkzeug.security import generate_password_hash
+from string import printable
+from random import choices
 
 
 class Union(Document):
@@ -7,12 +10,22 @@ class Union(Document):
     description = StringField()
     legal_registration_number = StringField()
     headquarter = StringField()
+    email = StringField()
 
     def save(self, *args, **kwargs):
         super(Union, self).save(*args, **kwargs)
         from .Group import Group
+        from .User import User
         group = Group()
         group.union = self
         group.name = 'Root'
         group.rights = ["*::*::{}}/*".format(self.id)]
         group.save()
+        user = User()
+        user.username = "{}@root".format(self.legal_registration_number)
+        user.user_group = group
+        user.union = self
+        password = choices(printable, k=10)
+        user.password = generate_password_hash(password)
+        # TODO: send mail or etc
+        user.save()