我只需要将一个“从父子嵌套查询中有记录的地图”中的值存储到另一张地图中。
Please see the below code that i am trying:
Map<id,BR_OrderItem__c> FinalorderitemMap = new Map<id,BR_OrderItem__c>();
Map<id,order> ordermap = new Map<id,order>([select Id,Name,Account.Name
(select Id, name from Itens_do_pedido__r ),BR_TotalConvertedQuantity__c from Order where id in :TargetIDList ]);
for(order ordd : ordermap.values()){
FinalorderitemMap.put(ordd.id,ordd.Itens_do_pedido__r);
}
Error that i am getting here:
|System.QueryException: List has more than 1 row for assignment to SObject
Please suggest Exactly what i am doing wrong here.
All i want is to store realted child(order-item) record with corresponding order as key.
Please suggest, Thanks in Advance.
这是因为ordd.Itens_do_pedido__r是List<BR_OrderItem__c>。有两种方法可以解决此问题。
1.将地图定义为List<BR_OrderItem__c>：
Map<Id, List<BR_OrderItem__c>> FinalorderitemMap = new Map<Id, List<BR_OrderItem__c>>();
2.如果您知道每个父母只有一个孩子项，那么可以使用以下选项：
for (order ordd : ordermap.values()) {
if (ordd.Itens_do_pedido__r.isEmpty()) {
continue;
}
FinalorderitemMap.put(ordd.id, ordd.Itens_do_pedido__r[0]);
}
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我来说两句