This is very bad news when the repeat no longer has any rows, possibly because the user has triggered delete actions on all of them.
如果repeat没有行，就会非常糟糕，之所以没有行可能是因为用户为所有行都触发了删除操作。
The create, update, delete, and toggle status actions all change information in the database, and that change must be reflected in the to Do items list on the Web page.
创建、更新、删除和切换状态活动均更改数据库中的信息，这样的更改必须反映在web页面的ToDo项目中。
The create, update, delete, and toggle status actions all change information in the database, and that change must be reflected in the to Do items list on the Web page.
创建、更新、删除和切换状态活动均更改数据库中的信息，这样的更改必须反映在web页面的ToDo项目中。
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