Initial updates required to run under django 2.2

- Change to middleware.py
- Change some URLs formatting
- Fix django version at 2.2

InvenTree/InvenTree/middleware.py

@@ -14,7 +14,7 @@ class AuthRequiredMiddleware(object):
 
         response = self.get_response(request)
 
-        if not request.user.is_authenticated():
+        if not request.user.is_authenticated:
             print(request.path_info)
 
             if not request.path_info == reverse_lazy('login'):

InvenTree/InvenTree/urls.py

@@ -48,8 +48,8 @@ urlpatterns = [
 
     url(r'^auth/', include('rest_framework.urls', namespace='rest_framework')),
 
-    url(r'^login/', auth_views.login, name='login'),
-    url(r'^logout/', auth_views.logout, {'template_name': 'registration/logout.html'}, name='logout'),
+    url(r'^login/', auth_views.LoginView.as_view(), name='login'),
+    url(r'^logout/', auth_views.LogoutView.as_view(template_name='registration/logout.html'), name='logout'),
     url(r'^admin/', admin.site.urls, name='inventree-admin'),
 
     url(r'^index/', IndexView.as_view(), name='index'),

InvenTree/build/migrations/0002_auto_20190412_2030.py

@@ -0,0 +1,25 @@
+# Generated by Django 2.2 on 2019-04-12 10:30
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('build', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='build',
+            name='part',
+            field=models.ForeignKey(limit_choices_to={'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part'),
+        ),
+        migrations.AlterField(
+            model_name='build',
+            name='status',
+            field=models.PositiveIntegerField(choices=[(10, 'Pending'), (20, 'Holding'), (30, 'Cancelled'), (40, 'Complete')], default=10, validators=[django.core.validators.MinValueValidator(0)]),
+        ),
+    ]

InvenTree/part/migrations/0003_auto_20190412_2030.py

@@ -0,0 +1,19 @@
+# Generated by Django 2.2 on 2019-04-12 10:30
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0002_part_default_location'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='bomitem',
+            name='part',
+            field=models.ForeignKey(limit_choices_to={'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='bom_items', to='part.Part'),
+        ),
+    ]

InvenTree/stock/migrations/0004_auto_20190412_2030.py

@@ -0,0 +1,19 @@
+# Generated by Django 2.2 on 2019-04-12 10:30
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0003_auto_20180510_1042'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stockitem',
+            name='status',
+            field=models.PositiveIntegerField(choices=[(10, 'OK'), (50, 'Attention needed'), (55, 'Damaged'), (60, 'Destroyed')], default=10, validators=[django.core.validators.MinValueValidator(0)]),
+        ),
+    ]

requirements/base.txt

@@ -1,4 +1,4 @@
-Django>=1.11
+Django==2.2
 pillow>=5.0.0
 djangorestframework>=3.6.2
 django_filter>=1.0.2