Fixed #24941 -- Added ModelAdmin.get_exclude().

Thanks Ola Sitarska for the initial patch.

1 files changed, 12 insertions, 10 deletions

diff --git a/django/contrib/admin/options.py b/django/contrib/admin/options.py
index 0804697594..499d27d02e 100644
--- a/django/contrib/admin/options.py
+++ b/django/contrib/admin/options.py
@@ -282,6 +282,12 @@ class BaseModelAdmin(six.with_metaclass(forms.MediaDefiningClass)):
         except AttributeError:
             return mark_safe(self.admin_site.empty_value_display)
 
+    def get_exclude(self, request, obj=None):
+        """
+        Hook for specifying exclude.
+        """
+        return self.exclude
+
     def get_fields(self, request, obj=None):
         """
         Hook for specifying fields.
@@ -605,13 +611,11 @@ class ModelAdmin(BaseModelAdmin):
             fields = kwargs.pop('fields')
         else:
             fields = flatten_fieldsets(self.get_fieldsets(request, obj))
-        if self.exclude is None:
-            exclude = []
-        else:
-            exclude = list(self.exclude)
+        excluded = self.get_exclude(request, obj)
+        exclude = [] if excluded is None else list(excluded)
         readonly_fields = self.get_readonly_fields(request, obj)
         exclude.extend(readonly_fields)
-        if self.exclude is None and hasattr(self.form, '_meta') and self.form._meta.exclude:
+        if excluded is None and hasattr(self.form, '_meta') and self.form._meta.exclude:
             # Take the custom ModelForm's Meta.exclude into account only if the
             # ModelAdmin doesn't define its own.
             exclude.extend(self.form._meta.exclude)
@@ -1851,12 +1855,10 @@ class InlineModelAdmin(BaseModelAdmin):
             fields = kwargs.pop('fields')
         else:
             fields = flatten_fieldsets(self.get_fieldsets(request, obj))
-        if self.exclude is None:
-            exclude = []
-        else:
-            exclude = list(self.exclude)
+        excluded = self.get_exclude(request, obj)
+        exclude = [] if excluded is None else list(excluded)
         exclude.extend(self.get_readonly_fields(request, obj))
-        if self.exclude is None and hasattr(self.form, '_meta') and self.form._meta.exclude:
+        if excluded is None and hasattr(self.form, '_meta') and self.form._meta.exclude:
             # Take the custom ModelForm's Meta.exclude into account only if the
             # InlineModelAdmin doesn't define its own.
             exclude.extend(self.form._meta.exclude)