ticket model verbose name and admin pannel display list

backend/ticket/admin.py

@@ -25,6 +25,7 @@ class TicketAdmin(ModelAdmin, ImportExportModelAdmin):
             "widget": ArrayWidget,
         }
     }
+    list_display = ['subject', 'customer', 'admin', 'status', 'admin', 'status', 'created_at']
     inlines = [MessageInline]
     radio_fields = {'status': admin.VERTICAL}
 
@@ -32,7 +33,7 @@ class TicketAdmin(ModelAdmin, ImportExportModelAdmin):
 class MessageAdmin(ModelAdmin, ImportExportModelAdmin):
     import_form_class = ImportForm
     export_form_class = ExportForm
-    
+    list_display = ['ticket', 'sender', 'content_display','created_at']
 
     compressed_fields = True
     warn_unsaved_form = True
@@ -44,4 +45,7 @@ class MessageAdmin(ModelAdmin, ImportExportModelAdmin):
         ArrayField: {
             "widget": ArrayWidget,
         }
-    }
+    }
+    def content_display(self, obj):
+        return obj.content[0:20] + '...'
+    content_display.short_description = 'محتوای پیام'