Question

我的文章模型定义为：

var ArticleSchema = new Schema({

    type: String
    ,title: String
    ,content: String

    ,comments: [{
        type: Schema.ObjectId
        ,ref: 'Comment'
    }]

    ,replies: [{
        type: Schema.ObjectId
        ,ref: 'Reply'
    }]


    ,feedbacks: [{
        type: Schema.ObjectId
        ,ref: 'Feedback'
    }]

    ,meta: {
        tags: [String] //anything
        ,apps: [{
            store: String //app store, google play, amazon app store
            ,storeId: String
        }]
        ,category: String
    }


    //normal, deleted, banned
    , status: String
    ,statusMeta: {
        createdBy: {
            type: Schema.ObjectId
            ,ref: 'User'
        }
        ,createdDate: Date
        , updatedBy: {
            type: Schema.ObjectId
            ,ref: 'User'
        }
        ,updatedDate: Date

        ,deletedBy: {
            type: Schema.ObjectId,
            ref: 'User'
        }
        ,deletedDate: Date

        ,undeletedBy: {
            type: Schema.ObjectId,
            ref: 'User'
        }
        ,undeletedDate: Date

        ,bannedBy: {
            type: Schema.ObjectId,
            ref: 'User'
        }
        ,bannedDate: Date
        ,unbannedBy: {
            type: Schema.ObjectId,
            ref: 'User'
        }

        ,unbannedDate: Date
    }
})

我有以下代码来创建新文章并保存。

var newArticle = new Article()
newArticle.status = helper.constant.articleTypes.other
newArticle.type = req.body.type
newArticle.category = req.body.category
newArticle.title = req.body.title
newArticle.content = req.body.content
newArticle.meta = req.body.meta
newArticle.statusMeta.createdBy = req.user
newArticle.statusMeta.createdDate = new Date
newArticle.save(function(err) {
    if (err)
        return next(err)
}

我的预保存挂钩（辅助功能）

exports.batchValidationWrapper = function(schema, module, fieldPaths) {
    for (var i = 0; i < fieldPaths.length; i++) {
        var fieldPath = fieldPaths[i]
        ;(function(fieldPath) {
            schema.pre('save', true, function(next, done) {
                var self = this

                var validationFunction = exports.validation[module][fieldPath]
                var msg = validationFunction(self[fieldPath])
                if (msg) {
                    self.invalidate(fieldPath, msg)
                    done(msg)
                }
                else {
                    done()
                }

            })
        })(fieldPath)
    }
}

在我的模型中我称呼帮助

helper.batchValidationWrapper(ArticleSchema, 'article', [
    'type'
    ,'title'
    ,'content'
    ,'comments'
    ,'replies'
    ,'feedbacks'
    ,'meta.tags'
    ,'meta.apps'
    ,'meta.category'
    ,'status'
    ,'statusMeta.createdBy'
    ,'statusMeta.createdDate'
    ,'statusMeta.deletedBy'
    ,'statusMeta.deletedDate'
    ,'statusMeta.undeletedBy'
    ,'statusMeta.undeletedDate'
    ,'statusMeta.bannedBy'
    ,'statusMeta.bannedDate'
    ,'statusMeta.unbannedBy'
    ,'statusMeta.unbannedDate'


])

helper.validation定义如下。它基本上是一串接收输入和返回错误消息的函数（如果有的话）。如果没有错误，只需返回''

exports.article = {

    type: function(input) {
        if (!input)
            return 'type is requried'
        return passIfAmongTypes('Article', input, constant.articleTypes)
    }

    ,'statusMeta.createdDate': function(input) {
        if (!input)
            return 'created date is required'
        return ''
    }
}

当我尝试创建新文章时，我收到错误created date is required。

我尝试了newArticle.markModified('statusMeta')和newArticle.markModified（statusMeta.createdDate），两者都无效。我不认为有必要对其进行修改，因为它是nested object类型，而不是mixed类型（来自mongoose doc）

我也尝试设置newArticle.statusMeta = {}，但也没有工作。

当我设置断点时，newArticle.statusMeta.createdDate未定义

我不想使用createdDate的默认值的原因是，设置默认值似乎在运行pre（＆＃39; save＆＃39;）钩子之前发生，这使我的验证码始终失败

Answer 1

这是我自己的错误。在helper.js内，我使用了helper.funcName()而不是exports.funcName()。即使使用webstorm IDE，也很难在javascript中调试。

Mongoose无法创建新文档

1 个答案: