stacktrace: include number of hidden frames

debug_toolbar/panels/cache.py

@@ -32,7 +32,7 @@ def wrapped(self, *args, **kwargs):
         if dt_settings.get_config()['ENABLE_STACKTRACES']:
             stacktrace = tidy_stacktrace(reversed(get_stack()))
         else:
-            stacktrace = []
+            stacktrace = ([], 0)
 
         template_info = get_template_info()
         cache_called.send(sender=self.__class__, time_taken=t,

debug_toolbar/panels/sql/tracking.py

@@ -113,7 +113,7 @@ def _record(self, method, sql, params):
             if dt_settings.get_config()['ENABLE_STACKTRACES']:
                 stacktrace = tidy_stacktrace(reversed(get_stack()))
             else:
-                stacktrace = []
+                stacktrace = ([], 0)
             _params = ''
             try:
                 _params = json.dumps([self._decode(p) for p in params])

debug_toolbar/static/debug_toolbar/css/toolbar.css

@@ -626,6 +626,9 @@
 #djDebug .djdt-stack span.djdt-code {
     font-weight: normal;
 }
+#djDebug .djdt-stack span.djdt-hidden_count {
+    font-weight: normal;
+}
 
 #djDebug .djdt-width-20 {
     width: 20%;

debug_toolbar/utils.py

@@ -52,24 +52,24 @@ def omit_path(path):
 
 def tidy_stacktrace(stack):
     """
-    Clean up stacktrace and remove all entries that:
-    1. Are part of Django (except contrib apps)
-    2. Are part of socketserver (used by Django's dev server)
-    3. Are the last entry (which is part of our stacktracing code)
+    Clean up stacktrace and remove entries according to HIDE_IN_STACKTRACES.
 
     ``stack`` should be a list of frame tuples from ``inspect.stack()``
     """
     trace = []
+    hidden_count = 0
     for frame, path, line_no, func_name, text in (f[:5] for f in stack):
         if omit_path(os.path.realpath(path)):
+            hidden_count += 1
             continue
         text = (''.join(force_text(t) for t in text)).strip() if text else ''
         trace.append((path, line_no, func_name, text))
-    return trace
+    return trace, hidden_count
 
 
 def render_stacktrace(trace):
     stacktrace = []
+    trace, hidden_count = trace
     for frame in trace:
         params = (escape(v) for v in chain(frame[0].rsplit(os.path.sep, 1), frame[1:]))
         params_dict = {six.text_type(idx): v for idx, v in enumerate(params)}
@@ -83,6 +83,9 @@ def render_stacktrace(trace):
         except KeyError:
             # This frame doesn't have the expected format, so skip it and move on to the next one
             continue
+    if hidden_count:
+        stacktrace.append('<span class="djdt-hidden_count">'
+                          '%d hidden frames.</span>' % hidden_count)
     return mark_safe('\n'.join(stacktrace))
 
 

tests/panels/test_sql.py

@@ -162,7 +162,7 @@ def test_disable_stacktraces(self):
         self.assertTrue('stacktrace' in query[1])
 
         # ensure the stacktrace is empty
-        self.assertEqual([], query[1]['stacktrace'])
+        self.assertEqual(([], 0), query[1]['stacktrace'])
 
     @override_settings(DEBUG=True, TEMPLATES=[{
         'BACKEND': 'django.template.backends.django.DjangoTemplates',