Merge pull request #92 from openwisp/django2.2

[deps] Added support for django 2.2

.travis.yml

@@ -9,13 +9,16 @@ env:
   - DJANGO="django>=1.11,<1.12"
   - DJANGO="django>=2.0,<2.1"
   - DJANGO="django>=2.1,<2.2"
+  - DJANGO="django>=2.2,<2.3"
 
 matrix:
   exclude:
    - python: "2.7"
      env: DJANGO="django>=2.0,<2.1"
    - python: "2.7"
      env: DJANGO="django>=2.1,<2.2"
+   - python: "2.7"
+     env: DJANGO="django>=2.2,<2.3"
 
 branches:
   only:
@@ -24,8 +27,6 @@ branches:
 before_install:
   - pip install --no-cache-dir -U -r requirements-test.txt
   - flake8
-  - # TODO: remove after openwisp-utils > 0.2 is released
-  - pip install https://github.com/openwisp/openwisp-utils/tarball/master#egg=openwisp_utils --upgrade
   - ./runcheckmigration
   - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then ./runisort; fi
   - npm install -g jshint

openwisp_users/admin.py

@@ -119,7 +119,8 @@ class Meta(BaseUserCreationForm.Meta):
         )
 
     class Media:
-        js = ('openwisp-users/js/addform.js',)
+        js = ('admin/js/jquery.init.js',
+              'openwisp-users/js/addform.js',)
 
 
 class UserChangeForm(EmailRequiredMixin, BaseUserChangeForm):
@@ -289,7 +290,8 @@ def has_change_permission(self, request, obj=None):
 
     class Media:
         css = {'all': ('openwisp-users/css/admin.css',)}
-        js = ('openwisp-users/js/uuid.js',)
+        js = ('admin/js/jquery.init.js',
+              'openwisp-users/js/uuid.js',)
 
 
 class OrganizationUserAdmin(MultitenantAdminMixin, BaseOrganizationUserAdmin, BaseAdmin,):