intro/admin.py

@@ -31,6 +31,9 @@ class IntroCatalogInfoAdmin(admin.ModelAdmin):

                         obj.save()
              

                 
              

                         if 'pdf' in form.changed_data or 'content' in form.changed_data:
              

                +            if not obj.pdf:
              

                +                return
              

                +
              

                             IntroContentInfo.objects.filter(catalog=obj).delete()
              

                 
              

                             inpdf = PdfFileReader(obj.pdf)