Add django-debug-toolbar plugin

- Must be running in DEBUG mode
- Must set debug_toolbar to True in config file

InvenTree/InvenTree/settings.py

@@ -172,9 +172,16 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
-    'InvenTree.middleware.AuthRequiredMiddleware',
+
+    'InvenTree.middleware.AuthRequiredMiddleware'
 ]
 
+# If the debug toolbar is enabled, add the modules
+if DEBUG and CONFIG.get('debug_toolbar', False):
+    print("Running with DEBUG_TOOLBAR enabled")
+    INSTALLED_APPS.append('debug_toolbar')
+    MIDDLEWARE.append('debug_toolbar.middleware.DebugToolbarMiddleware')
+
 if CONFIG.get('log_queries', False):
     MIDDLEWARE.append('InvenTree.middleware.QueryCountMiddleware')
 
@@ -377,3 +384,8 @@ DBBACKUP_STORAGE = 'django.core.files.storage.FileSystemStorage'
 DBBACKUP_STORAGE_OPTIONS = {
     'location': CONFIG.get('backup_dir', tempfile.gettempdir()),
 }
+
+# Internal IP addresses allowed to see the debug toolbar
+INTERNAL_IPS = [
+    '127.0.0.1',
+]

InvenTree/InvenTree/urls.py

@@ -6,6 +6,7 @@ Passes URL lookup downstream to each app as required.
 
 
 from django.conf.urls import url, include
+from django.urls import path
 from django.contrib import admin
 from django.contrib.auth import views as auth_views
 from qr_code import urls as qr_code_urls
@@ -135,5 +136,12 @@ urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
 # Media file access
 urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
 
+# Debug toolbar access (if in DEBUG mode)
+if settings.DEBUG and 'debug_toolbar' in settings.INSTALLED_APPS:
+    import debug_toolbar
+    urlpatterns = [
+        path('__debug/', include(debug_toolbar.urls)),
+    ] + urlpatterns
+
 # Send any unknown URLs to the parts page
 urlpatterns += [url(r'^.*$', RedirectView.as_view(url='/index/', permanent=False), name='index')]

InvenTree/config_template.yaml

@@ -58,8 +58,14 @@ static_root: '../inventree_static'
 #  - git
 #  - ssh
 
+# Set debug_toolbar to True to enable a debugging toolbar for InvenTree
+# Note: This will only be displayed if DEBUG mode is enabled, 
+#       and only if InvenTree is accessed from a local IP (127.0.0.1)
+debug_toolbar: False
+
 # Logging options
 # If debug mode is enabled, set log_queries to True to show aggregate database queries in the debug console
+# TODO - Remove me!
 log_queries: False
 
 # Backup options

requirements.txt

@@ -21,4 +21,5 @@ python-coveralls==2.9.1         # Coveralls linking (for Travis)
 rapidfuzz==0.7.6                # Fuzzy string matching
 django-stdimage==5.1.1          # Advanced ImageField management
 django-tex==1.1.7               # LaTeX PDF export
-django-weasyprint==1.0.1        # HTML PDF export
+django-weasyprint==1.0.1        # HTML PDF export
+django-debug-toolbar==2.2       # Debug / profiling toolbar