Make Plugin Confirm Template configurable (#7267)

* Make plugin confirm template configurable

* add feature to changelog

Co-authored-by: Jacob Rief <jacob.rief@uibk.ac.at>

CHANGELOG.rst

@@ -8,6 +8,7 @@ unreleased
 
 * Added dark mode support to css
 * Fix publishing of static placeholders outside of CMS pages
+* Allow to override the template rendered after a plugin has been saved.
 
 3.9.0 (2021-06-30)
 ==================
@@ -55,7 +56,7 @@ Bug Fixes:
 * Fix styles issues, caused by switching to the ``display: flex`` on the page tree renderer.
 * Fixed missing builtin arguments on main ``cms`` management command causing it to crash
 * Fixed template label nested translation
-* Fixed a bug where the fallback page title whould be returned instead of the one from the current language
+* Fixed a bug where the fallback page title would be returned instead of the one from the current language
 * Fixed an issue when running migrations on a multi database project
 * Fixes #7033: also check for Django 3.2, now that 3.9 supports it. (#7054) (02083f2dc) -- Marco Bonetti
 

cms/plugin_base.py

@@ -98,7 +98,8 @@ class CMSPluginBase(admin.ModelAdmin, metaclass=CMSPluginBaseMetaclass):
     module = _("Generic")  # To be overridden in child classes
 
     form = None
-    change_form_template = "admin/cms/page/plugin/change_form.html"
+    change_form_template = 'admin/cms/page/plugin/change_form.html'
+    plugin_confirm_template = 'admin/cms/page/plugin/confirm_form.html'
     # Should the plugin be rendered in the admin?
     admin_preview = False
 
@@ -295,7 +296,7 @@ def render_close_frame(self, request, obj, extra_context=None):
         if extra_context:
             context.update(extra_context)
         return render_to_response(
-            request, 'admin/cms/page/plugin/confirm_form.html', context
+            request, self.plugin_confirm_template, context
         )
 
     def save_model(self, request, obj, form, change):