Fix deprecation warnings for Django 1.11 and Django 2.0.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/common/classes.py

@@ -1,8 +1,8 @@
 from __future__ import unicode_literals
 
 from django.apps import apps
-from django.core.urlresolvers import reverse
 from django.db import models
+from django.urls import reverse
 from django.utils.encoding import force_text, python_2_unicode_compatible
 from django.utils.translation import ugettext
 

mayan/apps/common/mixins.py

@@ -3,9 +3,9 @@ from __future__ import unicode_literals
 from django.conf import settings
 from django.contrib import messages
 from django.core.exceptions import PermissionDenied
-from django.core.urlresolvers import reverse
 from django.db.models.query import QuerySet
 from django.http import HttpResponseRedirect
+from django.urls import reverse
 from django.utils.translation import ungettext, ugettext_lazy as _
 
 from permissions import Permission

mayan/apps/common/models.py

@@ -49,8 +49,8 @@ class SharedUploadedFile(models.Model):
 @python_2_unicode_compatible
 class UserLocaleProfile(models.Model):
     user = models.OneToOneField(
-        settings.AUTH_USER_MODEL, related_name='locale_profile',
-        verbose_name=_('User')
+        settings.AUTH_USER_MODEL, on_delete=models.CASCADE,
+        related_name='locale_profile', verbose_name=_('User')
     )
     timezone = models.CharField(
         choices=zip(common_timezones, common_timezones), max_length=48,

mayan/apps/common/templatetags/common_tags.py

@@ -24,12 +24,12 @@ except sh.CommandNotFound:
     DATE = None
 
 
-@register.assignment_tag
+@register.simple_tag
 def get_collections():
     return Collection.get_all()
 
 
-@register.assignment_tag
+@register.simple_tag
 def get_dashboard_widgets():
     return DashboardWidget.get_all()
 
@@ -52,7 +52,7 @@ def project_copyright():
     return settings.PROJECT_COPYRIGHT
 
 
-@register.assignment_tag
+@register.simple_tag
 def project_description():
     return getattr(settings, 'PROJECT_DESCRIPTION', mayan.__description__)
 
@@ -77,7 +77,7 @@ def project_version():
     return mayan.__version__
 
 
-@register.assignment_tag(takes_context=True)
+@register.simple_tag(takes_context=True)
 def render_subtemplate(context, template_name, template_context):
     """
     Renders the specified template with the mixed parent and
@@ -89,7 +89,7 @@ def render_subtemplate(context, template_name, template_context):
     return get_template(template_name).render(new_context)
 
 
-@register.assignment_tag
+@register.simple_tag
 def build():
     if BUILD:
         try:

mayan/apps/common/tests/test_api.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 
 from rest_api.tests import BaseAPITestCase
 

mayan/apps/common/tests/test_views.py

@@ -3,9 +3,9 @@ from __future__ import absolute_import, unicode_literals
 from django.conf.urls import url
 from django.contrib.auth import get_user_model
 from django.contrib.auth.models import Group
-from django.core.urlresolvers import clear_url_caches, reverse
 from django.http import HttpResponse
 from django.template import Context, Template
+from django.urls import clear_url_caches, reverse
 
 from acls.models import AccessControlList
 from permissions.models import Role
@@ -91,7 +91,7 @@ class GenericViewTestCase(BaseTestCase):
         user = get_user_model().objects.get(username=username)
 
         self.assertTrue(logged_in)
-        self.assertTrue(user.is_authenticated())
+        self.assertTrue(user.is_authenticated)
 
     def login_user(self):
         self.login(username=TEST_USER_USERNAME, password=TEST_USER_PASSWORD)

mayan/apps/common/utils.py

@@ -8,7 +8,7 @@ import types
 import xmlrpclib
 
 from django.conf import settings
-from django.core.urlresolvers import resolve as django_resolve
+from django.urls import resolve as django_resolve
 from django.urls.base import get_script_prefix
 from django.utils.datastructures import MultiValueDict
 from django.utils.encoding import force_text

mayan/apps/common/views.py

@@ -4,9 +4,9 @@ from json import dumps
 
 from django.conf import settings
 from django.contrib import messages
-from django.core.urlresolvers import reverse, reverse_lazy
 from django.http import Http404, HttpResponseRedirect
 from django.template import RequestContext
+from django.urls import reverse, reverse_lazy
 from django.utils import timezone, translation
 from django.utils.http import urlencode
 from django.utils.translation import ugettext_lazy as _, ugettext