Javascript 在express js中更新(放置)数组
我正在使用expressjs(nodejs)。我试图在更新现有数据时存储数组数据(Javascript 在express js中更新(放置)数组,javascript,arrays,node.js,express,Javascript,Arrays,Node.js,Express,我正在使用expressjs(nodejs)。我试图在更新现有数据时存储数组数据(dealtype&dealprice),但无法执行此操作 我的现有数据集 { "_id": "56a59a2923e047bc2128cd99", "foodImageUrl": "modules/foods/client/img/food.jpg", "deal": [ { "_id": "56a59a2923e047bc2128cd9a", "dealprice": "asd", "
dealtype
&dealprice
),但无法执行此操作
我的现有数据集
{
"_id": "56a59a2923e047bc2128cd99",
"foodImageUrl": "modules/foods/client/img/food.jpg",
"deal": [
{
"_id": "56a59a2923e047bc2128cd9a",
"dealprice": "asd",
"dealtype": "asd"
}
],
"name": "ads",
"created": "2016-01-25T03:44:41.346Z"
}
我的expressjs控制器
exports.update = function (req, res) {
var food = req.food;
food.name = req.body.name;
food.deal.dealtype = req.body.deal.dealtype;
food.deal.dealprice = req.body.deal.dealprice;
food.foodImageUrl = req.body.foodImageUrl;
food.save(function (err) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.json(food);
}
});
};
更新现有文档的一种方法。首先,通过
\u id
或其他关键字查找需要更改的文档。下面是一个由\u id
编写的示例
Food.findOne({_id: req.food._id}, function(err, food) {
food.name = req.body.name;
food.deal.dealtype = req.body.deal.dealtype;
food.deal.dealprice = req.body.deal.dealprice;
food.foodImageUrl = req.body.foodImageUrl;
food.save(function (err) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.json(food);
}
});
});
或者只使用更新现有文档。您的代码中是否使用了
mongoose
?是的,mongoose用于更新现有文档上的dealtype和dealprice?或者创建一个新文档?我想更新现有文档。它显示错误:[$resource:badcfg]操作的资源配置错误
更新。预期响应包含一个数组,但在控制台中获得了一个对象。我正在前端使用angularjsfood.deal.dealtype=req.body.deal.dealtype代码>是否提取ng重复数据?