Question

<head>
<g:javascript library='jquery' />
<r:layoutResources />
<script type="text/javascript">
    function getGroupsDetails(){
        var selectedGroup = jQuery("#group").val();
        if(selectedGroup != "")
            ${remoteFunction (controller: 'groups', action: 'details', params: '\'groupId=\' + selectedGroup', update: 'details')}
    }
</script>
</head>
<body>
    <div class="col-xs-12 col-sm-4">
        <strong>By Group Name :</strong>
        <g:select id="groups" name="groupName" from="${Groups.list()}" value="${groupsInstance?.id}" noSelection="['':'-Select-']" optionKey="id" onChange="getGroupsDetails();" />
        <div id="details"></div>
    </div>
</body>
</html>

详情行动如下

def details(){
    println "in details"
    def groupIns = Groups.get(params.id)
    println groupIns.id
    render(template: "details", model: [groupIns: groupIns])
 }

现在它进入javascript以及细节控制器。在控制器中我也打印了id。但在gsp中它没有显示任何内容......

Answer 1

在您的课程中加入toString。当对象打印我们的tostring返回gname

    class Groups {

           String gowner

           String gname

           int devicenum

        static constraints = {

        }


        String toString() {
            "$gname"
        }

    }

first.gsp：

在select中不需要list.gname（），因为我们包含toString（）。在下面，当我们选择group时，它会调用javascript函数来调用更新特定div的动作。我正在做AJAX。

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<g:javascript library='jquery' />
<r:layoutResources />

    <script type="text/javascript">
        function getGroupDetails(){
                    alert("Function calling");
            var selectedGroup = jQuery("#group").val();
                    alert(selectedGroup);
            if(selectedGroup != "")
                ${remoteFunction (controller: 'group', action: 'details', params: '\'groupId=\' + selectedGroup', update: 'details')}
        }

    </script>
</head>


<g:select id="group" name="groupName" from="${Groups.list()}"
value="${groupInstance?.id}" noSelection="['':'-Select-']" optionKey="id" 
onChange="getGroupDetails();" />

<div id="details"></div>

控制器动作：

def details(){
   println params.groupId
   def groupIns = Group.get(params.groupId)
   render(template: "details", model: [groupIns: groupIns])
}

_details.gsp：

 Name:${groupIns.gname}
 Owner:${groupIns.gowner}
 Devicenum:${groupIns.devicenum}

根据grails中的选定选项显示其他详细信息

1 个答案: