Try moving the debug toolbar further up the list of the middlewares.

Have tried moving it to the very top. No change.
Im startignt o think its to do with the dc connection. Its a postgresql database using psycopg2 as a db engine.

Everything else seems to work perfectly fine.

Any way to debug this further?

Do you have any applications or libraries that alter the database connection?

As a side note, it looks like you are half setup for the Explicit Setup. You should set DEBUG_TOOLBAR_PATCH_SETTINGS = False if you are going to use the Explicit Setup. The other note is that ENABLE_STACKTRACES is a key within the dictionary for the setting DEBUG_TOOLBAR_CONFIG

And to debug this further, I would say to disable any non-standard django middleware then try the page again.

Setting the debug_toolbar_patch_settings to false seems to have worked.

Thanks. Playing around with a few more of the settings....

Closing as it's working now.

Just found that if you have 'debug_toolbar.middleware.DebugToolbarMiddleware', twice in MIDDLEWARE_CLASSES for whatever reason, the same thing happens (always No SQL queries were recorded during this request.)

Having the middleware twice exactly the problem for me.

None of what was mentioned here worked for me. I'm still getting the 0 SQL queries in the panel.

I have this in my INSTALLED_APPS

INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'debug_toolbar', 'debug_panel', 'rest_framework', 'yahshua_intelex', 'corsheaders', 'apis.apps.ApisConfig', 'rest_framework.authtoken', 'my_app' ]

And this in my middleware

MIDDLEWARE_CLASSES = [ 'django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'corsheaders.middleware.CorsMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'debug_panel.middleware.DebugPanelMiddleware', 'my_app.middleware.middleware.RequestProcessor', ]

@Mikebarson The debug_toolbar middleware is missing from your MIDDLEWARE_CLASSES, resp. you only have debug_panel there which is a different thing, and I'm not sure whether it works the same way.

you should select 'history' of panel, then select your endpoint (e.g. /persons/) with clicking on 'switch' button
and finally select 'SQL' of panel and see generated sql.