单据操作插件

1. 插件基类： public class PurOrderDemo02OpSavePlugIn extends AbstractOperationServicePlugIn

2. beforeExecuteOperationTransaction 点击按钮，执行之前，校验，取消操作

@Override
public void beforeExecuteOperationTransaction(BeforeOperationArgs e) {
// TODO Auto-generated method stub
super.beforeExecuteOperationTransaction(e);
BigDecimal amount = new BigDecimal(0);
//获取当前对象
DynamicObject[] ojbs = e.getDataEntities();
//当前总金额
BigDecimal currentamount = (BigDecimal) ojbs[0].get("totalamount");
//对象id
//BigDecimal id = (BigDecimal) ojbs[0].get("id");
QFilter fid = new QFilter("id",QCP.equals,ojbs[0].get("id").toString());
DynamicObject order = QueryUtil.loadSingle("nyn1_purorder_demo02", new QFilter[] {fid});
if(order==null)
{
}else
{
BigDecimal oldamount = order.getBigDecimal("totalamount");
amount = oldamount.multiply(new BigDecimal(-1));
}
if(rg!=null && rg.equals("3")) 
{
//
e.setCancel(true);
e.setCancelMessage("采购订单累计金额不允许超过采购合同金额");
}
}
}
}

3. beginOperationTransaction 事务开启，同步更新自定义表表单数据

//事务已开启
@Override
public void beginOperationTransaction(BeginOperationTransactionArgs e) {
// TODO Auto-generated method stub
super.beginOperationTransaction(e);
BigDecimal amount = new BigDecimal(0);
//获取当前对象
DynamicObject[] ojbs = e.getDataEntities();
//当前总金额
BigDecimal currentamount = (BigDecimal) ojbs[0].get("totalamount");
//对象id
//BigDecimal id = (BigDecimal) ojbs[0].get("id");
QFilter fid = new QFilter("id",QCP.equals,ojbs[0].get("id").toString());
DynamicObject order = QueryUtil.loadSingle("nyn1_purorder_demo02", new QFilter[] {fid});
if(order==null)
{
}else
{
BigDecimal oldamount = order.getBigDecimal("totalamount");
amount = oldamount.multiply(new BigDecimal(-1));
}
//计算变化的金额
amount = amount.add(currentamount);
//采购合同
DynamicObject contract = (DynamicObject) ojbs[0].get("contract");
//获取采购合同信息
QFilter fht = new QFilter("id",QCP.equals,contract.get("id").toString());
DynamicObject oldObj = QueryUtil.loadSingle("nyn1_purcontract", new QFilter[] {fht});
if(oldObj==null)
{
}else
{
//合同已占用金额
BigDecimal occupied = oldObj.getBigDecimal("occupied");
occupied = occupied.add(amount);
oldObj.set("occupied", occupied);
Object[] oRet = SaveServiceHelper.save((new DynamicObject[] {oldObj}));
}

}