【发布时间】：2018-03-15 11:39:57
【问题描述】：
我有一个带有一些属性和子属性的猫鼬模式。在版本属性上，我想要一个 Mixed 类型的子属性，因为我将向该属性发送不同的键/值对。但是将数据发送到node后，子属性为空，没有保存在MongoDB中。
这是我的架构
var Product = new mongoose.Schema({
name: {
type: String
},
nameSlug: {
type: String
},
uploader: {
_id: mongoose.Schema.Types.ObjectId,
name: {
type: String,
required: true
}
},
uploadDate: {
type: Date,
default: Date.now,
required: true
},
dateLastModified: {
type: Date,
default: Date.now,
},
isBestseller: {
type: Boolean,
default: false,
required: true
},
isVerified: {
type: Boolean,
default: false
},
suggestedRetailPrice: {
type: Number
},
brand: {
_id: mongoose.Schema.Types.ObjectId,
name: {
type: String,
required: true
},
nameSlug: {
type: String,
required: true
},
images: [Image]
},
productCollection: {
type: String
},
category: {
type: String,
required: true
},
versions: [{
author: [{
name: String,
_id: false
}],
date: {
type: Date,
required: true
},
concept: {
type: Boolean,
required: true
},
modifiedProperties: [mongoose.Schema.Types.Mixed],
history: [{
status: String,
author: [{
name: String,
_id: false
}],
date: Date
}]
}]
}, {strict: false});
module.exports = mongoose.model('Product', Product);
图像一个现在不相关的子模式。在 versions 属性上，我有一个 modifiedProperties 属性，我想在我的 Angular 应用程序的更新中填充更改后的产品（名称、nameslug 等）属性。我按如下方式创建该对象
角度代码
var modifiedProperties = [];
angular.forEach($scope.addProductForm, function(value, key) {
if(key[0] == '$') return;
if(value.$dirty){
modifiedProperties[key] = value.$$lastCommittedViewValue;
}
});
var version = {
author: {
name: $rootScope.user.firstName + ($rootScope.user.lastNamePrefix ? " " + $rootScope.user.lastNamePrefix + " " : " ") + $rootScope.user.lastName,
_id: $rootScope.user._id
},
date: new Date(),
concept: true,
modifiedProperties: modifiedProperties,
history: {
author: {
name: $rootScope.user.firstName + ($rootScope.user.lastNamePrefix ? " " + $rootScope.user.lastNamePrefix + " " : " ") + $rootScope.user.lastName,
_id: $rootScope.user._id
},
status: "Versie aangemaakt",
date: new Date()
}
}
console.log("VERSION", version);
var product = $scope.product;
product.versions.push(version);
$api.update('products/' + nameSlug, product)
.then(function(response) {
console.log("response", response);
})
.catch(function(reason) {
console.log(reason);
})
在控制台中，我看到属性已正确填写，但在保存操作后，除了modifiedProperties 之外的所有内容都已保存。我在更新函数中放了一些日志，我看到的是modifiedProperties在控制器中是空的。我不知道他在哪里丢失了数据。
$api 服务是我们对 $http 函数的包装。数据没有松散，我们将使用data 字段发送。
控制器
module.exports.updateProduct = function(req, res) {
console.log('[updateProduct controller]');
/* This helper function can be called from elsewhere in the updateProduct controller and processes the HTTP response (and possibly errors) */
function sendResponse(status, response, err) {
/* Log HTTP response to the console server side before actually sending it to the client. */
console.log(status + ' ' + response.message);
/* Also log stack trace on error */
if(err) {
console.log('\nError message: ' + err);
console.log(err.stack);
}
/* Send HTTP response */
res.status(status).json(response);
}
if(req.params && req.params.nameSlug && req.body) {
//Empty modifiedProperties (Array(0))
console.log("REQ", req.body");
let verifyProduct;
if(req.body.verifyProduct && req.body.verifyProduct == true) {
verifyProduct = true;
delete req.body.verifyProduct;
}
console.log("PRODUCT", req.body);
req.body.dateLastModified = Date.now();
Product.findOneAndUpdate({nameSlug:req.params.nameSlug}, req.body, function (err, product) {
/* Some error occurred while trying to update the product. */
if(err) {
sendResponse(400, {message: 'Product could not be added. '}, err);
/* The product doesn't exist */
} else if(!product) {
sendResponse(404, {message: 'Product not found. '});
/* The product exists and has been updated successfully. */
} else {
/* Check if this product is being verified by an admin or not. If so, check if the admin is the same person who initially uploaded the product. */
if(verifyProduct == true && product.uploader._id != req.user._id) {
/* If so, find that user to get their email adress. */
User.findById(product.uploader._id, function(err, user) {
/* An error occurred, so mailing the original uploader is not possible. */
if(err) {
sendResponse(200, {message: 'Product updated with errors. ', product}, err);
/* The original uploader does not exist (anymore), so sending mail is not possible. */
} else if(!user) {
sendResponse(200, {message: 'Product updated, but the uploader doesn`t seem to exist. ', product});
/* Send an email to the original uploader to notify them. */
} else {
var data = {
product: product,
user: user
};
var options = {
to: user.email,
subject: product.en.name + ' is toegevoegd aan PrismaNote!',
template: 'retailer-product-verified'
};
mailService.mail(options, data, null);
sendResponse(200, {message: 'Product updated. ', product});
}
});
} else {
sendResponse(200, {message: 'Product updated. ', product});
}
}
});
}
};
有人知道这会出什么问题吗？或者为什么会这样？
编辑：
我看到数组modifiedProperties 的长度为“0”，因为键。这可能是nodejs不会处理它的原因吗？
【问题讨论】：