The idea here is to wrap the original delete_selected
functionality in a way that I shouldn't have to reimplement the templates (confirmation/error response) serving, just extend the original.
What this code does, it wraps the queryset's delete function with a closure, so when it really gets called (after the confirmation), it executes the extra functionality you wish to.
After looking at the original code, this seemed to be the most efficient way of doing it.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | from django.contrib.admin.actions import delete_selected
class YourModelAdmin(admin.ModelAdmin):
def my_delete_selected(self, modeladmin, request, queryset):
delete_orig = queryset.delete
def _delete_closure():
"""
The idea here is to wrap the original delete (gets called by
delete_selected() when it does the actual deletion.
"""
result = delete_orig()
your_extra_functionality(request)
return result
queryset.delete = _delete_closure
return delete_selected(modeladmin, request, queryset)
def get_actions(self, request):
'Patch delete_selected to have our version running'
actions = super(YourModelAdmin, self).get_actions(request)
actions['delete_selected'] = (
self.my_delete_selected, 'delete_selected',
delete_selected.short_description)
return actions
|
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