Story.
find(...).
populate({
path: 'fans',
// filtering field, you can use mongoDB syntax
match: { age: { $gte: 21 } },
// Explicitly exclude `_id`, see http://bit.ly/2aEfTdB
select: 'name -_id'
}).
exec();const Live = new Schema(
{
user_id:{ // this one populate
type: Schema.Types.ObjectId,
ref: 'User', // User Schema
required: true
},
title: {
type: String,
},
category:{ // this one populate
type: Schema.Types.ObjectId,
ref: 'Category' // Category Schema
},
}
)
let vid = await Live.find({})
.populate({path:'user_id',select:'name image -_id'})
.populate({path:'category',select:'category -_id',model:Category})
const storySchema = Schema({
authors: [{ type: Schema.Types.ObjectId, ref: 'Person' }],
title: String
});
// Later
const story = await Story.findOne({ title: 'Casino Royale' }).populate('authors');
story.authors; // `[]`const mongoose = require('mongoose');
const { Schema } = mongoose;
const personSchema = Schema({
_id: Schema.Types.ObjectId,
name: String,
age: Number,
stories: [{ type: Schema.Types.ObjectId, ref: 'Story' }]
});
const storySchema = Schema({
author: { type: Schema.Types.ObjectId, ref: 'Person' },
title: String,
fans: [{ type: Schema.Types.ObjectId, ref: 'Person' }]
});
const Story = mongoose.model('Story', storySchema);
const Person = mongoose.model('Person', personSchema);app.get('/movies', passport.authenticate('jwt', { session: false }), (req, res) => {
Movies.find()
.populate('Genre')
.populate('Actor')
.populate('Director')
.then((movies) => {
res.status(201).json(movies);
})
.catch((err) => {
console.error(err);
res.status(500).send(`Error: ${err}`);
});
});