猫鼬嵌入式文档不保存

Question

对于玩激战 2 的人来说，这个模式可能看起来很熟悉。我正在尝试通过他们的 API 下载所有项目，但无法让嵌入式 'details' 属性编组 and/or 持续存在。这是我第一次尝试使用猫鼬，所以我希望这里有一个明显的问题：

这是我的架构定义：

var ItemSchema = new Schema({
    _id: Number,
    name: String,
    icon: String,
    description: String,
    type: String,
    rarity: String,
    level: Number,
    vendor_value: Number,
    default_skin: Number,
    flags: [String],
    game_types: [String],
    restrictions: [String],
    details: {                // This is the problem property
        type: String,
        weight_class: String,
        defense: Number,
        infusion_slots: {
            flags: [String],
            item_id: Number
        },
        infix_upgrade: {
            attributes: [{
                attribute: String,
                modifier: Number
            }],
            buff: {
                skill_id: String,
                description: String
            }
        },
        suffix_item_id: Number,
        size: Number,
        no_sell_or_sort: Boolean,
        description: String,
        duration_ms: Number,
        unlock_type: String,
        color_id: Number,
        recipe_id: Number,
        charges: Number,
        flags: [String],
        infusion_upgrade_flags: [String],
        suffix: String,
        bonuses: [String],
        damage_type: String,
        min_power: Number,
        max_power: Number
    }
});

我试图通过 insert 和 findOneAndUpdate (upsert) 来保存传入的对象。

var gwItem = // grab from API.
Item.remove({_id: gwItem.id}).exec();
// At this point, details looks like an object property.
gwItem['_id'] = gwItem.id;
var item = new Item(gwItem);
// At this point, calling item.toObject() shows no 'details' property set...
item.save().exec();  // 'details' not saved here
// Do below in replacement of item.save();
gwItem['$setOnInsert'] = {_id: gwItem.id};
// This saves 'details' property with a value of '[object Object]'...
Item.findOneAndUpdate({_id: gwItem.id}, gwItem, {upsert:true}, function(){});

上面代码中 API 发送并填充到 'gwItem' 的示例：https://api.guildwars2.com/v2/items/68743

我做错了什么？

Answer 1

这是因为 Mongoose 定义模式的方式。由于您使用关键字 type 作为 details 的路径名，它将 details 定义为 String 字段，其余路径是 details 的选项。只需将 type: String 更改为 type: {type: String} 即可。更多信息 here.

猫鼬嵌入式文档不保存

Mongoose Embeded Document Not Saving

mongoose

mongodb

node.js