grails - 克 :if inside g:link does not work

Question

问题标题足以解释除了我尝试的尝试:

尝试1:

<g:link controller="staff" action="all" <g:if test="${actionName=='all' }">class="active"</g:if> >Overview</g:link>

错误消息

Error 500

Class :org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException Message Grails tag [g:link] was not closed

---

尝试2:

<g:link controller="staff" action="all" class="<g:if test="${actionName=='all' }">active</g:if>" >Overview</g:link>

错误消息

Error 500 Class org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException Message Attribute value must be quoted (controller="staff" action="all" class="

如何进行分支来确定元素是否具有 css class X？

X(在此示例中)= 事件

Answer 1

我认为如果您使用三元运算符就足够了，例如:

<g:link controller="staff" action="all"  class="${actionName == 'all' ? 'active' : ''}">
    Overview
</g:link>