Question

我正在使用mongoose在NodeJS和MongoDB中编写一个网站，我有一个模型 Photo ，另一个模型摄影师如下：

var photographerSchema = new Schema({
    photographerId: Schema.Types.ObjectId,
    emailAddress: { type: String, required: true, unique: true },
    password: { type: String, required: true },
    firstName: { type: String, default: '' },
    lastName: { type: String, default: '' },
    phoneNumber: { type: String, default: '' },
    address: { type: String, default: '' },
    profilePhoto: { type: String, default: 'media/UserPhotos' },
    photos: { type: [photoSchema], default: [] }
});

var photoSchema = new Schema({
    photoId: Schema.Types.ObjectId,
    title: { type: String, default: '' },
    path: { type: String, default: 'media/images' },
    photographer: { type: photographerSchema, default: null },
    isAppoved: { type: Boolean, default: false }
    },
    { timestamps: true }
);

现在有问题了！当我想通过摄影师帐户添加多张照片时，给我错误 E11000重复密钥错误集合：test.photodatas索引：photographer.emailAddress_1 dup key：{：“photographeremail@email.com”}

任何帮助都让我感激不尽！谢谢！

Answer 1

我假设您要为每张照片添加相同的对象，但是Mongoose正在尝试创建新的摄影师文档。在photoSchema中，你应该使用ref作为摄影师。

var photoSchema = new Schema({
    photoId: Schema.Types.ObjectId,
    title: { type: String, default: '' },
    path: { type: String, default: 'media/images' },
    photographer: { type: Schema.Types.ObjectId, ref: 'Photographer' },
    isAppoved: { type: Boolean, default: false }
    },
    { timestamps: true }
);

然后当您保存新照片时，只需在摄影师资产中使用photographer.photographerId。

var photo = new Photo({
    somedata: "data",
    ...
    photographer: photographer.photographerId
});

然后当你想要拍摄所有照片时，你可以像这样填充摄影师：

Photo
.find()
.populate('photographer')
.exec(function (err, photos) {
  // yey!
});

嵌套设计模式中mongoose中的重复键错误

1 个答案: