node.js - MongoDB - 使用 Mongoose 模式 - 如何告诉 Mongoose 不要保存特定字段

Question

假设我有一个如下所示的 Mongoose 架构:

userSchema = mongoose.Schema({
        username: {
            type: String,
            isUnique: true,
            required: true
        },
        teamSnap: {
            username: String,
            password: String
        },
        password: {
            type: String,
            required: true
        },
        linkedin_id: Number,
        email: {
            type: String,
            required: true
        },
        numberOfLineupsCreated: Number,
        hasPaidAlready: Boolean,
        longitude: Number,
        registered_at: {
            type: Date,
            default: Date.now
        },
        created_at: {
            type: Date,
            default: Date.now
        },
        updated_at: {
            type: Date,
            default: Date.now
        }
    });

如何告诉 Mongoose 不要在数据库中保存/存储 teamSnap 字段？

Answer 1

您可以重新定义 toJSON() 方法并删除其中的字段:

UserSchema.methods.toJSON = function() {
    var obj = this.toObject()
    delete obj.teamSnap

    return obj
}