更新单个Visualforce页面上多个opportunity行项目的数量

Question

我有一个visualforce页面，它在线显示在Opportunity页面布局上。目标是显示与opportunity关联的每个opportunity line item（OLI），以及quantity inputfield。我需要能够从VF页面更改奥利的数量。我有一个扩展到标准opportunity controller之外的控制器，所有内容都能正确显示，但当我尝试使用自定义保存方法保存时，页面会刷新，对字段的更改不会更新。感谢您的帮助！

VF页面：

<apex:page standardController="Opportunity" extensions="OLIController">
<apex:form >
<apex:pageBlock title="Opportunity Products">



    <apex:pageBlockTable var="OLI" value="{!OLIs}" id="newProduct">
        <apex:column value="{!OLI.name}"/>
        <apex:column headerValue="Quantity">

            <apex:inputfield id="Quantity" value="{!OLI.Quantity}"/>

        </apex:column>

    </apex:pageBlockTable>

    <apex:pageBlockButtons >
        <apex:commandButton value="Save" action="{!saveIt}" immediate="false"/>
    </apex:pageBlockButtons>

</apex:pageBlock>
</apex:form>

控制器：具有共享类OLIController的公共{

public ApexPages.StandardController sc;
public Opportunity Opp {get;set;}
private Map<Id, OpportunityLineItem> oliItems;
public List<OpportunityLineItem> OLIlist2 {get ;set;}

public OLIController(ApexPages.StandardController sc) { 
this.Opp = (Opportunity)sc.getRecord();

}


public List<OpportunityLineItem> getOLIs() {

    List<OpportunityLineItem> OLIlist2 = [Select Name, ID, Quantity, OpportunityId FROM OpportunityLineItem WHERE OpportunityId =:Opp.Id];

    return OLIlist2;

}
public PageReference saveIt() {
    List<OpportunityLineItem> listOLI = getOLIs();

    update listOLI;

    return null;

}

}

Answer 1

问题已解决；

只需将OLIlist2的“get”部分的数据从控制器添加到OLIController sc。请参阅下面的修改代码。

public with sharing class OLIController {

public ApexPages.StandardController sc;
public Opportunity Opp {get;set;}
public List<OpportunityLineItem> OLIlist2 {get ;set;}

public OLIController(ApexPages.StandardController sc) { 
this.Opp = (Opportunity)sc.getRecord();
OLIlist2 = [Select Name, ID, Quantity, OpportunityId FROM OpportunityLineItem WHERE OpportunityId =:Opp.Id];
}


public List<OpportunityLineItem> getOLIs() {

    List<OpportunityLineItem> OLIlist2 = [Select Name, ID, Quantity, OpportunityId FROM OpportunityLineItem WHERE OpportunityId =:Opp.Id];

    return OLIlist2;

}
public PageReference saveIt() {
   // List<OpportunityLineItem> listOLI = getOLIs();

    update OLIlist2;

    return null;

}

}