JAVASCRIPT

mongoose virtual populate not working

// virtual pupulate
AuthorSchema.virtual('posts', {
  ref: 'BlogPost',
  localField: '_id',
  foreignField: 'author'
})

// add this in your schema if vritual is not work, this method working for me
AuthorSchema.set('toObject', { virtuals: true })
AuthorSchema.set('toJSON', { virtuals: true })

mongoose virtual populate

// Specifying a virtual with a `ref` property is how you enable virtual
// population
AuthorSchema.virtual('posts', {
  ref: 'BlogPost',
  localField: '_id',
  foreignField: 'author'
});

const Author = mongoose.model('Author', AuthorSchema, 'Author');
const BlogPost = mongoose.model('BlogPost', BlogPostSchema, 'BlogPost');