Adding cancel_token generation to user on creation

taiga/users/admin.py

@@ -48,7 +48,7 @@ class UserAdmin(DjangoUserAdmin):
     fieldsets = (
         (None, {'fields': ('username', 'password')}),
         (_('Personal info'), {'fields': ('full_name', 'email', 'bio', 'photo')}),
-        (_('Extra info'), {'fields': ('color', 'default_language', 'default_timezone', 'token', 'colorize_tags', 'email_token', 'new_email')}),
+        (_('Extra info'), {'fields': ('color', 'default_language', 'default_timezone', 'token', 'colorize_tags', 'email_token', 'new_email', 'cancel_token')}),
         (_('Permissions'), {'fields': ('is_active', 'is_superuser',)}),
         (_('Important dates'), {'fields': ('last_login', 'date_joined')}),
     )

taiga/users/migrations/0006_user_cancel_token.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0005_alter_user_photo'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='cancel_token',
+            field=models.CharField(default=None, max_length=200, blank=True, null=True, verbose_name='email token'),
+            preserve_default=True,
+        ),
+    ]

taiga/users/models.py

@@ -19,6 +19,7 @@
 import os.path as path
 import random
 import re
+import uuid
 
 from django.db import models
 from django.dispatch import receiver
@@ -123,6 +124,9 @@ class User(AbstractBaseUser, PermissionsMixin):
 
     github_id = models.IntegerField(null=True, blank=True, verbose_name=_("github ID"))
 
+    cancel_token = models.CharField(max_length=200, null=True, blank=True, default=None,
+                     verbose_name=_("cancel account token"))
+
     USERNAME_FIELD = 'username'
     REQUIRED_FIELDS = ['email']
 
@@ -146,6 +150,11 @@ def get_short_name(self):
     def get_full_name(self):
         return self.full_name or self.username or self.email
 
+    def save(self, *args, **kwargs):
+        if not self.cancel_token:
+            self.cancel_token = str(uuid.uuid1())
+
+        super().save(*args, **kwargs)
 
 class Role(models.Model):
     name = models.CharField(max_length=200, null=False, blank=False,