Question

我有一个数组形式的嵌套子模式，在此子模式数组中，我引用了Image类型的对象ID（请参见图像模式）。我想要的是用图像本身的数据填充此对象ID。恢复要填充子模式文档中的字段的需求。我尝试了许多解决方案，但没有成功，不知道该如何实现？谢谢

我有以下3种模式：

const deviceSchema = mongoose.Schema({
    _id: mongoose.Schema.Types.ObjectId,
    name: {
        type: String,
        required: true,
    },
    os: {
        type: String,
        required: true,
    },
   },
    images:[assignedImagesSchema]
});

const  assignedImagesSchema = new mongoose.Schema({ 
    id: {type: mongoose.Schema.Types.ObjectId, ref:"Image"},
    isVisible: {
        type: Boolean,
        default: true
    },
    visibleFor: {
        type: Number,
        default: 0
    },
    orderIndex: {
        type: Number,
    }
  });
const imageSchema = mongoose.Schema({
    _id: mongoose.Schema.Types.ObjectId,
    url:{
        type: String,
        required: true,

    },
    orientation: {
        type: String,
        required: true,
    },
    devices: [{type: mongoose.Schema.Types.ObjectId, ref:'Device' }]

Answer 1

您只需在 assignedImageSchema 中添加一个将imageSchema作为对象的新字段。例如：

const assignedImagesSchema = 
new mongoose.Schema({ 
image: { type: imageSchema } , 
isVisible: { type: Boolean, default: true },
visibleFor: { type: Number, default: 0 },
orderIndex: { type: Number, } });

在子模式文档中填充字段

1 个答案: