grails - Grails分页标记错误

Question

单击分页按钮时出现此错误:
处理GroovyPageView时出错:/home/user1/workspace/adm-appserver-manager/grails-app/views/emailNotification/status.gsp:59中，标记[paginate]缺少必需的属性[total]

我的代码是:
在gsp中:

<div class="paginateButtons">  
           <g:paginate total="${emailNotificationInstanceTotal}" />  

</div>

在 Controller 中:

def status = {
    [
        emailNotificationInstanceList:EmailNotification.findAllByStatus(EmailNotification.Status.Sent, params ),
        emailNotificationInstanceTotal:EmailNotification.countByStatus(EmailNotification.Status.Sent)  
    ]
}

我提到了总属性，但我不知道为什么会出现此错误

Answer 1

确保 Controller 在返回或渲染中返回此参数。如果源调用失败，还应该在 Controller 或 View 中添加默认值。

<g:paginate total="${emailNotificationInstanceTotal?:0}" />

要么

emailNotificationInstanceTotal: EmailNotification.countByStatus(EmailNotification.Status.Sent)?:0