Mapping between two different Angular models - json

Question

I'm trying to map Order.ts to OrderAction.ts, but getting the error Cannot ready property '0' of undefined. This error is coming up when I try to map the Order properties to OrderAction properties.
Here is Order.ts:
export class Order {
OrderId: number;
FunctionStatusList?: OrderFunctionStatus[];
}
export class OrderFunctionStatus {
FunctionTypeCode: number;
AvailableActions: OrderAvailableAction[];
}
export class OrderAvailableAction {
ActionLabel: string;
ActionValue: string;
}
Here is OrderAction.ts:
export class OrderAction {
FunctionTypeCode: number;
SelectedAction: string;
OrderList: AvailableAction[];
}
export class AvailableAction {
OrderId: number;
IsAvailableAction: boolean;
AvailableActions?: OrderAvailableAction[];
}
Here is the code that I wrote:
orders: any[] = [];
orderActionList: any[] = [];
ngOnInit() {
this.orders = this.orderService.getCheckedOrders();
this.orders.forEach((order: Order, i) => {
let orderAction: OrderAction = new OrderAction();
orderAction.OrderList[i].OrderId = order.OrderId;
orderAction.FunctionTypeCode = order.FunctionStatusList[i].FunctionTypeCode;
orderAction.AvailableActions = order.FunctionStatusList[i].AvailableActions;
orderAction.IsAvailableAction = order.FunctionStatusList[i].AvailableActions.length > 0 == true || false;
this.orderActionList.push(orderAction);
});
}
Here is a sample of the Order.ts json:
{
"OrderId": "1",
"FunctionStatusList": [{
"FunctionTypeCode": "1",
"AvailableActions": [{
"ActionLabel": "1",
"ActionValue": "1"
}]
}]
}
Here is a sample of the OrderAction.ts json:
{
"FunctionTypeCode": "1",
"SelectedAction: "1",
"OrderList": [{
"OrderId": "1",
"IsAvailableActionsLoaded": "1",
"AvailableActions": [{
"ActionLabel": "1",
"ActionValue": "1"
}]
}]
}

Answer 1

I'm not sure where exactly you're getting the error, but I did the following and it converts Order to OrderAction: https://plnkr.co/edit/VEHAdk3qPRIFkEAU?preview
The meat of the code is this:
this.orders.forEach((order: Order, i) => {
this.orderActions.push({
FunctionTypeCode: order.FunctionStatusList[i].FunctionTypeCode,
SelectedAction: null,
OrderList: [
{
OrderId: order.OrderId,
IsAvailableActionsLoaded:
order.FunctionStatusList[i].AvailableActions.length > 0,
AvailableActions: order.FunctionStatusList[i].AvailableActions,
},
],
});
});
I left SelectedAction as null because it was unclear how this value would be set.