Mongoose model Schema with reference array: CastError: Cast to ObjectId failed for value “[object Object]”

Question

I build a blog website with express.js and mongoosejs. A article may have one or more category. When I create a new article, I get error:

{ [CastError: Cast to O         


        

Answer 1

Please use mongoose.Schema.Types.Mixed as data type of categories. I had the same issue with saving data array. It works for me.

var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

var ArticleSchema = new Schema({
    created: { type: Date, default: Date.now },
    title: String,
    content: String,
    summary: String,
    categories: [{type: Schema.Types.Mixed }]
});

mongoose.model('Article', ArticleSchema);