1I'm working on improving the Django CMS toolbar middleware to better support plugin management functionality. Currently, the toolbar is only enabled for specific views defined in the `TOOLBAR_URL_PREFIXES` within toolbar.py, but I've noticed we're missing support for two critical plugin-related operations: adding and editing plugins through the `cms_placeholder_add_plugin` and `cms_placeholder_edit_plugin` views. These views should have access to the toolbar object just like our other administrative actions, as they're fundamental to the content editing experience.
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3To implement this enhancement, we'll need to make two key changes. First, we should add both 'cms_placeholder_add_plugin' and 'cms_placeholder_edit_plugin' to the allowed URL prefixes list in cms/middleware/toolbar.py. Second, we should expand our test coverage in cms/tests/test_toolbar.py to verify that the toolbar object is properly attached to requests hitting these endpoints, maintaining consistency with how we test other toolbar-enabled views. This change will ensure a more complete and reliable toolbar experience throughout the entire plugin management workflow.