Question

我尝试做的是通过执行简单的http get请求在我的某个网页上显示用户显示名称列表。

在我的users.server.controller.js文件中，我有这个功能：

exports.list = function(req, res) { 
    User.find().populate('displayName').exec(function(err, users) {
        console.log(users);
        if (err) {
            return res.status(400).send({
                message: errorHandler.getErrorMessage(err)
            });
        } else {
            res.jsonp(users);
        }
    });
};

当我使用AngularJS控制器的$http.get()请求调用此函数时，我得到400错误。

这是我的Mongoose用户架构

/**
 * User Schema
 */
var UserSchema = new Schema({
    firstName: {
        type: String,
        trim: true,
        default: '',
        validate: [validateLocalStrategyProperty, 'Please fill in your first name']
    },
    lastName: {
        type: String,
        trim: true,
        default: '',
        validate: [validateLocalStrategyProperty, 'Please fill in your last name']
    },
    organization: {
        type: String,
        trim: true,
        default: '',
        required: 'Please fill in an organization name'
    },
    position: {
        type: String,
        trim: true,
        default: '',
        required: 'Please fill in the title of your position'
    },
    displayName: {
        type: String,
        trim: true
    },
    email: {
        type: String,
        trim: true,
        default: '',
        validate: [validateLocalStrategyProperty, 'Please fill in your email'],
        match: [/.+\@.+\..+/, 'Please fill a valid email address']
    },
    username: {
        type: String,
        unique: 'testing error message',
        required: 'Please fill in a username',
        trim: true
    },
    password: {
        type: String,
        default: '',
        validate: [validateLocalStrategyPassword, 'Password should be longer']
    },
    salt: {
        type: String
    },
    provider: {
        type: String,
        required: 'Provider is required'
    },
    providerData: {},
    additionalProvidersData: {},
    roles: {
        type: [{
            type: String,
            enum: ['user', 'admin']
        }],
        default: ['user']
    },
    updated: {
        type: Date
    },
    created: {
        type: Date,
        default: Date.now
    },
    /* For reset password */
    resetPasswordToken: {
        type: String
    },
    resetPasswordExpires: {
        type: Date
    }
});

Answer 1

似乎你在populate和select之间混淆了。当您引用外部架构（如owner : { type: Schema.ObjectId, ref: 'User' }）时，将使用populate。如果要显示所有者字段，则需要调用populate('owner')来加载用户。您需要的是调用.select("displayName")以便仅检索结果中的displayName。

使用Mongoose填充获取用户列表/数组

1 个答案: