Incorporating an array of JSON into a Mongoose schema in JavaScript

Question

Incorporating an array of JSON into a Mongoose schema in JavaScript

I am currently developing an Android App focused on baseball, and I have decided to use MongoDB to store my data. The format in which I would like my JSON data stored in the database is as follows:

{"<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f59098949c99b5919a98994b8fb3939597">[email protected]</a>":{
      "coachName": "Smith",
       players:[
            player1:{
                "throws_":"n\/a",
                "position":"position not set",
                "number":"1",
                "playerNum":"H8E83NxRo6",
                "bats":"n\/a",
                "team_name":"Team",
                "name":"Name"
             },
             player2:{
                "throws_":"n\/a",
                "position":"position not set",
                "number":"1",
                "playerNum":"H8E83NxRo6",
                "bats":"n\/a",
                "team_name":"Team",
                "name":"Name"
             }
      ]  
}

If there are any syntax errors, please forgive me, but that's the structure I aim for in my JSON. In this layout, the person's email serves as the Mongo page ID, and "players" represents an array of players under a specific coach. I have several questions regarding implementing this:

How can I properly configure the Mongoose schema to match this structure?
Once the app sends the JSON data, how can I parse it to effectively store the information?
If multiple players are added simultaneously, how can I add them to the existing array of players?

All these aspects pertain to backend/server-side operations. My android application is functioning well, I just require assistance with storing the data as specified using JavaScript.

javascript arrays json mongodb mongoose

Answer 1

Answer №1

Avoid using dynamic variables as field names, especially for important data like email addresses. This can make it difficult to locate specific objects in your database. It is recommended to have separate models for players and coaches. The coach model should reference the player model in its Players array field.
Ensure that your JSON data is properly formatted to avoid the need for parsing.
Take a closer look at the addPlayer function.

Controller file (Answer for questions 2 and 3)

create = function(req, res) {
    var coach = new Coach(req.body);
    coach.user = req.user;

    coach.save(function(err) {
        if (err) {
            return res.status(400).send({
                // Include your error message here
            });
        } else {
            res.json(coach);
        }
    });
};

read = function(req, res) {
    res.json(req.coach);
};

addPlayer = function(req, res) {
    var coach = req.coach;
    console.log('updating coach', req.coach);
    var player = new Player(req.newPlayer);
    coach.players.push(newPlayer);

    coach.save(function(err) {
        if (err) {
            return res.status(400).send({
                // Include your error message here
            });
        } else {
            res.json(coach);
        }
    });
};

Player

'use strict';

/**
 * Module dependencies.
 */
var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

/**
 * Player Schema
 */
var PlayerSchema = new Schema({
    created: {
        type: Date,
        default: Date.now
    },
    throws: {
        type: Number,
    },
    name: {
        type: String,
        default: '',
        trim: true
    },
    position: {
        type: String,
        default: '',
        trim: true
    },
    playerNum: {
        type: String,
        default: '',
        trim: true
    },
    position: {
        type: Number,
        default: 0,
        trim: true
    },
    teamName: {
        type: String,
        default: '',
        trim: true
    }
});

mongoose.model('Player', PlayerSchema);

Coach Schema

'use strict';

/**
 * Module dependencies.
 */
var mongoose = require('mongoose'),
  Schema = mongoose.Schema;

/**
 * Coach Schema
 */
var CoachSchema = new Schema({
  created: {
    type: Date,
    default: Date.now
  },
  email: {
    type: String,
    unique: true,
    lowercase: true,
    trim: true,
    default: ''
  },
  name: {
    type: String,
    default: '',
    trim: true
  },
  players: [{
    type: Schema.ObjectId,
    ref: 'Player'
  }]
});

mongoose.model('Coach', CoachSchema);

Answer 2

Avoid using dynamic variables as field names, especially for important data like email addresses. This can make it difficult to locate specific objects in your database. It is recommended to have separate models for players and coaches. The coach model should reference the player model in its Players array field.
Ensure that your JSON data is properly formatted to avoid the need for parsing.
Take a closer look at the addPlayer function.

Controller file (Answer for questions 2 and 3)

create = function(req, res) {
    var coach = new Coach(req.body);
    coach.user = req.user;

    coach.save(function(err) {
        if (err) {
            return res.status(400).send({
                // Include your error message here
            });
        } else {
            res.json(coach);
        }
    });
};

read = function(req, res) {
    res.json(req.coach);
};

addPlayer = function(req, res) {
    var coach = req.coach;
    console.log('updating coach', req.coach);
    var player = new Player(req.newPlayer);
    coach.players.push(newPlayer);

    coach.save(function(err) {
        if (err) {
            return res.status(400).send({
                // Include your error message here
            });
        } else {
            res.json(coach);
        }
    });
};

Player

'use strict';

/**
 * Module dependencies.
 */
var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

/**
 * Player Schema
 */
var PlayerSchema = new Schema({
    created: {
        type: Date,
        default: Date.now
    },
    throws: {
        type: Number,
    },
    name: {
        type: String,
        default: '',
        trim: true
    },
    position: {
        type: String,
        default: '',
        trim: true
    },
    playerNum: {
        type: String,
        default: '',
        trim: true
    },
    position: {
        type: Number,
        default: 0,
        trim: true
    },
    teamName: {
        type: String,
        default: '',
        trim: true
    }
});

mongoose.model('Player', PlayerSchema);

Coach Schema

'use strict';

/**
 * Module dependencies.
 */
var mongoose = require('mongoose'),
  Schema = mongoose.Schema;

/**
 * Coach Schema
 */
var CoachSchema = new Schema({
  created: {
    type: Date,
    default: Date.now
  },
  email: {
    type: String,
    unique: true,
    lowercase: true,
    trim: true,
    default: ''
  },
  name: {
    type: String,
    default: '',
    trim: true
  },
  players: [{
    type: Schema.ObjectId,
    ref: 'Player'
  }]
});

mongoose.model('Coach', CoachSchema);

Incorporating an array of JSON into a Mongoose schema in JavaScript

Answer №1

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