Improvements for panel mixin sample

InvenTree/InvenTree/views.py

@@ -75,7 +75,6 @@ class InvenTreePluginMixin:
         panels = []
 
         for plug in registry.with_mixin('panel'):
-
             panels += plug.render_panels(self, self.request)
 
         return panels

InvenTree/plugin/builtin/integration/mixins.py

@@ -606,18 +606,18 @@ class PanelMixin:
         for panel in self.get_custom_panels(view, request):
 
             if 'content_template' in panel:
-                # TODO: Render the actual content
+                # TODO: Render the actual HTML content from a template file
                 ...
 
             if 'javascript_template' in panel:
-                # TODO: Render the actual content
+                # TODO: Render the actual javascript content from a template file
                 ...
             
             # Check for required keys
             required_keys = ['title', 'content']
 
             if any([key not in panel for key in required_keys]):
-                logger.warning(f"Custom panel for plugin '{__class__}' is missing a required key")
+                logger.warning(f"Custom panel for plugin {__class__} is missing a required parameter")
                 continue
 
             # Add some information on this plugin

InvenTree/plugin/samples/integration/custom_panel_sample.py

@@ -18,6 +18,19 @@ class CustomPanelSample(PanelMixin, IntegrationPluginBase):
     PLUGIN_SLUG = "panel"
     PLUGIN_TITLE = "Custom Panel Example"
 
+    def render_location_info(self, loc):
+        """
+        Demonstrate that we can render information particular to a page
+        """
+        return f"""
+        <h5>Location Information</h5>
+        <em>This location has no sublocations!</em>
+        <ul>
+        <li><b>Name</b>: {loc.name}</li>
+        <li><b>Path</b>: {loc.pathstring}</li>
+        </ul>
+        """
+
     def get_custom_panels(self, view, request):
 
         panels = [
@@ -46,14 +59,15 @@ class CustomPanelSample(PanelMixin, IntegrationPluginBase):
         # This panel will *only* display on the StockLocation view,
         # and *only* if the StockLocation has *no* child locations
         if isinstance(view, StockLocationDetail):
+
             try:
                 loc = view.get_object()
 
                 if not loc.get_descendants(include_self=False).exists():
                     panels.append({
-                        'title': 'Childless',
+                        'title': 'Childless Location',
                         'icon': 'fa-user',
-                        'content': '<h4>I have no children!</h4>'
+                        'content': self.render_location_info(loc),
                     })
             except:
                 pass