Plugin template extensions missing on VRF and other declarative-layout views

[aa659]

NetBox Edition

NetBox Community

NetBox Version

v4.5.7

Python Version

3.12

Steps to Reproduce

1. Install any plugin that registers a PluginTemplateExtension with a left_page() method for ipam.vrf.
2. Upgrade NetBox from v4.5.5 to v4.5.6 or later.
3. Open any VRF detail page in the web UI.

Expected Behavior

The plugin card renders in the left column of the VRF detail page, as it did in v4.5.5.

Observed Behavior

The card does not appear. The plugin's registration is otherwise working; the same extension still renders for models whose views use SimpleLayout.

PR #21695 (tracking NB-2115) ported VRFView and RouteTargetView from {% plugin_left_page object %} to explicit netbox.ui.layout.Layout(...) instances. SimpleLayout auto-injects PluginContentPanel('left_page'/'right_page'/'full_width_page'), but views built with Layout directly have to add those panels themselves, and not all of them do.

Broken in v4.5.7:

• ipam.views.VRFView (netbox/ipam/views.py:51)
• ipam.views.RouteTargetView (netbox/ipam/views.py:165)
• core.views.DataFileView (netbox/core/views.py:186)
• core.views.ConfigRevisionView (netbox/core/views.py:389)
• core.views.JobLogView (netbox/core/views.py:250, sub-tab, possibly intentional)

Reference for correct usage: vpn.views.L2VPNView (netbox/vpn/views.py:650) and core.views.ObjectChangeView (netbox/core/views.py:298).

Ref.: #21911

[jeremystretch]

I think these have all been addressed in the v4.6 beta but not in the latest v4.5 release.