Mongoose 虚拟财产中的访问请求

Question

考虑这个示例

var ArticleSchema = new Schema({
    content: {
        type: String,
        default: '',
        trim: true
    },
    user: {
        type: Schema.ObjectId,
        ref: 'User'
    }
}, {
    toObject: { virtuals: true },
    toJSON: { virtuals: true }
});
ArticleSchema.virtual('is_owner').get(function () {
    //how to access app request here?
    //i would like to get req.user variable here
    return false;
});
mongoose.model('Article', ArticleSchema);

正如评论中所写，我想访问虚拟财产中的路由请求，但不知道这是否合法？

第一个想法是要求在虚拟内表达

ArticleSchema.virtual('is_owner').get(function () {
        var express = require('express');
        var app = express();
        //then what?
    });

但应用没有请求

Answer 1

假设这是你的路线：

app.post('/articles', function newArticle(req, res, next) {

  var article = new Article(req.body);
  article.set('is_owner', req);
  article.save(function onSaved(err, savedArticle) {
    if (err) {
      return next(err);
    }
    res.json(savedArticle);
  });

});

这是你的虚拟：

ArticleSchema.virtual('is_owner').set(function (req) {
  // => do what ever you want here.
});