我正在为仪表板创建8个visualforce页面(VFP),并且由于每个VFP所需的数据相似,我希望利用单个自定义控制器(而不是8个控制器)。
每个VFP之间的唯一区别是控制器中找到的SOQL语句的WHERE子句。我的想法是让每个VFP将一个静态(非更改/硬编码)字符串传递给控制器,以便在控制器的SOQL WHERE子句中使用。以下是我正在寻找的一个例子:
public class SalesRev_UpFrontFees {
public String StageVal {get;set;}
public Integer salesVal = 0;
public Integer intTCV;
public SalesRev_UpFrontFees(){
getData();
}
public void getData() {
//Insert code to pull the hardcoded 'StageVal' from visualforce pages
String SoqlString = 'SELECT SUM(Total_Subscription_Fees__c) RevSum\n' +
'FROM Opportunity\n' +
'WHERE CloseDate >= 2018-01-01 AND CloseDate <= 2018-12-31\n' +
'AND Opportunity.RecordType.Name = \'Enterprise Opportunity\'\n' +
'AND StageName = \':StageVal\'';
AggregateResult[] groupedResults = Database.query(SoqlString);
objTCV = groupedResults[0].get('RevSum');
intTCV = Integer.valueOf(objTCV);
salesVal = (intTCV == null) ? 0 : intTCV ;
}
/*public void setStageVal(String sStageVal) {
StageVal = sStageVal;
} */
public Integer getsalesVal() {
return intTCV;
}
}
<apex:page controller="SalesRev_UpFrontFees">
<head>
<apex:includeScript value="{!URLFOR($Resource.VFGauge, 'VFGauge/jQuery/jquery-1.10.2.min.js')}" />
<apex:includeScript value="{!URLFOR($Resource.VFGauge, 'VFGauge/jQuery/jquery-ui-1.10.2.custom.min.js')}" />
<apex:includeScript value="{!URLFOR($Resource.Raphael, 'Raphael/resources/js/raphael.2.1.0.min.js')}" />
<apex:includeScript value="{!URLFOR($Resource.Raphael, 'Raphael/resources/js/justgage.1.0.1.js')}" />
<apex:stylesheet value="{!URLFOR($Resource.Raphael, 'Raphael/styles/style.css')}"/>
</head>
<apex:form id="myForm">
<!--- Insert way to feed the controller a string value, e.g. String StageVal = 'Closed Won'--->
<body>
<apex:pageBlock id="xxx">
<div id="gauge1" style="width:320px; height:256px"></div>
<script type="text/javascript">
var g1 = new JustGage({
id: "gauge1",
value: {!salesVal},
min: 0,
max: 1000000000,
title: "WW Sales Revenue",
levelColorsGradient: false,
gaugeWidthScale: 0.4,
valueFontSize: "5px"
});
</script>
<a id="linear-gauge" href=""></a>
</apex:pageBlock>
</body>
</apex:form>
</apex:page>
我已经查看过几十篇与此类似的帖子,但所有现有帖子都是1)处理从VFP传递动态值(通常通过JS脚本定义)到控件VIA按钮/ selectList /等。或者2)他们处理从控制器传递变量到VFP;这些都不是我需要的。我最接近解决方案是使用此来源:https://salesforce.stackexchange.com/questions/24666/how-to-pass-javascript-value-to-controller ...但此示例需要在VFP上使用按钮。
不言而喻,我是visualforce的新手,但在Python中拥有约4年的编码经验(这并没有像我希望的那样有帮助)。任何如何实现这一点的例子都将非常感激!!
答案 0 :(得分:2)
尝试查看&lt; apex:actionFunction&gt;标签与&lt; apex:param&gt;标签应该让你到达你想去的地方。 Action函数允许您调用控制器方法,还允许您传递分配给属性的params,其值可以设置。
<apex:actionFunction action="{!someMethod}" name="someMethodName" rerender="ifNeeded">
<apex:param name="stageParam" assignTo="{!StageVal}" value="Closed Won" />
</apex:actionFunction>
来自javascript后加载调用
someMethodName('Closed Won')// you may be able to call without params since the value in the param is hard coded but not sure that would be something to test
<强>更新强>
因此,我创建了一个完整的示例页面,以便您可以更好地查看它的实际效果。
VF页面
<apex:page controller="TestController" >
<h1>Congratulations</h1>
This is your new Page: Test
<apex:form >
<apex:actionFunction action="{!someMethod}" name="someMethodName" rerender="ifNeeded">
<apex:param name="stageParam" assignTo="{!StageVal}" value="Closed Won" />
</apex:actionFunction>
<apex:outputPanel id="ifNeeded">{!StageVal} {!opps.size}
</apex:outputPanel>
<script>
window.onload = function() {
someMethodName();//or someMethodName('Closed Lost'); to replace default of param variable
}
</script>
</apex:form>
</apex:page>
控制器
public class TestController {
public String StageVal {get;set;}
public List<Opportunity> opps {get;set;}
public PageReference someMethod() {
opps = [Select Name from Opportunity WHERE StageName = :StageVal];
return null;
}
}
发生了什么...... actionfunction标签声明了一个js函数,该函数将对控制器进行异步调用,其中params按照它们出现的顺序列在param标记中。这会导致部分postpack到serverside控制器调用action函数标记的action属性指定的方法,actionfunction标记的name属性中的js方法的名称。由于回发属性的一部分已更新,因此您的参数可用于控制器。