Question

我正在对象（Object1__c）上写一个触发器，它将分割插入Object1__c的单个行分成多行并插入另一个对象，即Object2__c

基本上，对应于12个月（一年）数据的单行必须分成另一个对象的12个月数据行。

目前，我正在使用粗俗的分割方式，如下所示。

有没有有效的方法来实现这个目标？

Trigger trgSplit on Object1__c (After Insert){


List<Object2__c> object2List = new List<Object2__c>;


For(Object1__c nc : [select Account_Number__c, Account_Name__c,  Y1M01__c,Y1M03__c,Y1M04__c,Y1M05__c,Y1M06__c,Y1M07__c,Y1M08__c,Y1M09__c,Y1M10__c,Y1M11,Y1M12__c])    {

Object2__c pc = new Object2__c();


pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M01__c;
pc.Record_Date__c = date.parse('01/01/2014');
object2List.add(pc);

pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M02__c;
pc.Record_Date__c = date.parse('02/01/2014');
object2List.add(pc);


pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M03__c;
pc.Record_Date__c = date.parse('03/01/2014');
object2List.add(pc);


pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M04__c;
pc.Record_Date__c = date.parse('04/01/2014');
object2List.add(pc);

pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M05__c;
pc.Record_Date__c = date.parse('05/01/2014');
object2List.add(pc);


pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M06__c;
pc.Record_Date__c = date.parse('06/01/2014');
object2List.add(pc);


.............................................


//and so on

//upto 


pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M11__c;
pc.Record_Date__c = date.parse('11/01/2014');
object2List.add(pc);


pc = new Object2__c();
pc.Account_Number__c = nc.Account_Number__c;
pc.Account_Name__c = nc.Account_Name__c;
pc.Total__c = nc.Y1M12__c;
pc.Record_Date__c = date.parse('12/01/2014');
object2List.add(pc);

}

     insert object2List;    
}

Answer 1

您可以通过属性名称nc.Y1M01__c直接获取sObject字段，或者通过底层sobject的get方法nc.get('Y1M01__c')获取。由于您可以动态传递字符串，因此现在可以使用循环来摆脱重用代码：

List<Object2__c> object2List = new List<Object2__c>;

For(Object1__c nc : [select Account_Number__c, Account_Name__c,  Y1M01__c,Y1M03__c,Y1M04__c,Y1M05__c,Y1M06__c,Y1M07__c,Y1M08__c,Y1M09__c,Y1M10__c,Y1M11,Y1M12__c]) {
    //loop thru each month, 1...12
    for(Integer i = 1; i < 13; i++) {
        //get the month and prefix a zero if necessary
        String month = String.valueOf(i);
        month = (month.length() == 1 ? '0' : '') + month;

        //build the date
        Date recDate = Date.parse(String.format('{0}/01/2014', new List<String> { month }));

        //get the field api name
        String y1mXX = String.format('Y1M{0}__c', new List<String> { month }));
        //get the field value, you will need to cast it to the appropriate data type
        Decimal y1mXXval = Decimal.valueOf( String.valueOf( nc.get(y01mXX) ) );

        //since you are not using the new Object2__c anymore just pass it directly into the list
        object2List.add(new Object2__c(
            Account_Number__c = nc.Account_Number__c,
            Account_Name__c = nc.Account_Name__c,
            Total__c = y1mXXval,
            Record_Date__c = recDate
        ));
    }

}

insert object2List;

更有效地编写Apex触发器

1 个答案: