我有一个从REST API
中获取的对象...
我想遍历数组并从中创建对象/数组
这是数组;
orderItem
包含包含menu_modifier_items
的menu_modifier_groups
orderItem
-> menu_modifier_groups
-> menu_modifier_items
orderItem: {
id: 159
name: Empanadas (Choice of 2)
description: Choice of Diced Beef; Spinach, Stilton and Onion; or Smoked Ham and Mozzarella
price: 700
available: 1
created_at: 2016-01-31 16:50:31
updated_at: 2016-01-31 16:50:31
menu_category_id: 41
restaurant_id: 11
menu_modifier_groups:
[ {
id: 9
name: Choose 2 Empanadas
instruction: null
min_selection_points: 2
max_selection_points: 2
force_selection: 1
created_at: 2016-02-01 01:03:35
updated_at: 2016-02-01 01:12:23
menu_item_id: 159
restaurant_id: 11
menu_modifier_items:
[ {
id: 34
name: Diced Beef
price: 0
created_at: 2016-02-01 01:04:08
updated_at: 2016-02-01 01:04:08
menu_modifier_group_id: 9
restaurant_id: 11
menu_item_id: 159
selected: true
} , {
id: 35
name: Smoked Salmon & Mozzarella
price: 0
created_at: 2016-02-01 01:04:37
updated_at: 2016-02-01 01:04:37
menu_modifier_group_id: 9
restaurant_id: 11
menu_item_id: 159
selected: true
} , {
id: 36
name: Stilton, Spinach and Onion
price: 0
created_at: 2016-02-01 01:05:05
updated_at: 2016-02-01 01:05:05
menu_modifier_group_id: 9
restaurant_id: 11
menu_item_id: 159
selected: false
} ]
} ]
}
从我从REST API
那里得到的东西中,我想做的是将这个orderItem
变成;
// the main item + menu_modifier_items(where selected = true) without menu_modifier_groups
$scope.mainItem =
{
id: 159
name: Empanadas (Choice of 2)
description: Choice of Diced Beef; Spinach, Stilton and Onion; or Smoked Ham and Mozzarella
price: 700
available: 1
created_at: 2016-01-31 16:50:31
updated_at: 2016-01-31 16:50:31
menu_category_id: 41
restaurant_id: 11
menu_modifier_items:
[ {
id: 34
name: Diced Beef
price: 0
created_at: 2016-02-01 01:04:08
updated_at: 2016-02-01 01:04:08
menu_modifier_group_id: 9
restaurant_id: 11
menu_item_id: 159
selected: true
} , {
id: 35
name: Smoked Salmon & Mozzarella
price: 0
created_at: 2016-02-01 01:04:37
updated_at: 2016-02-01 01:04:37
menu_modifier_group_id: 9
restaurant_id: 11
menu_item_id: 159
selected: true
} ]
}
所以我可以像下面这样使用它$http
;
$scope.addItem = function(orderItem) {
//transform orderItem here into mainItem
$http({
method: 'post',
url: "http://api.example.com/web/cart/item/add",
data: $.param({
'cartItem': $scope.mainItem
}),
headers: {'Content-Type': 'application/x-www-form-urlencoded'}
}).success(function (data, status, headers, config) {
});
}
任何建议/指导表示赞赏。
像 Lodash 这样的 JavaScript 实用程序库可能会让你的生活更轻松一些。但是这是使用基本JavaScript的方法
。// Build your array of modifierItems by looping through the menu_modifier_group entries and taking only the ones that have selected: true
var modifierItems = [];
for (var i = 0; i < orderItem.menu_modifier_groups.length; i++)
{
if (orderItem.menu_modifier_groups[i].selected.menu_modifier_items)
{
for (var j = 0; j < orderItem.menu_modifier_groups[i].menu_modifier_items.length; j++)
{
if(orderItem.menu_modifier_groups[i].menu_modifier_items[j].selected === true)
{
modifierItems.push(orderItem.menu_modifier_groups[i].menu_modifier_items[j]);
}
}
}
}
// Now get rid of menu_modifier_groups, and use the remaining orderItem object as your $scope.mainItem,
// and add the array of modifier items you built above as menu_modifier_items
delete orderItem.menu_modifier_groups;
$scope.mainItem = orderItem;
$scope.mainItem.menu_modifier_items = modifierItems;
// Now do your $http stuff