Questions about Mongoose Schema design - node.js

Question

I'm completely new to the NoSQL world and it's been difficult to wrap my mind around it. This week I was learning MongoDB (Mongoose) with Node.js and here is my current schema:
var eventDataSchema = new Schema({
_id : Number,
notes : {type: String, required: true},
start_date : {type: Date, required: true},
end_date : {type: Date, required: true},
}, {
id : false,
collection : 'event-data'
});
eventDataSchema.plugin(AutoIncrement);
var EventData = mongoose.model('EventData', eventDataSchema);
Now that this is working, I would like to add a user and password and have access to have personal access to EventData.
Also... later if I want to send a JSON of only the eventData, but not the user to my javascript, how would I do that?
The way I am currently sending my eventData to my js in this format:
router.get('/data', function(req, res){
EventData.find({}, function(err, data){
if (err) {
console.error('Error occured');
}
res.send(data);
});
});
Thanks again

Answer 1

As i can understand you want to add events key in your schema. Then your schema will be like that:
var userSchema = new Schema({
user: { type: String, required: true, trim: true },
password: { type: String, required: true, trim: true },
events: [{
notes: { type: String,required: true, trim: true },
start_date: { type: Date,required: true },
end_date: { type: Date,required: true }
}]
}
userSchema.plugin(AutoIncrement);
var userSchema = mongoose.model('userSchema', userSchema);
});
If the above code is not working then you can create two schema,one for user and other for eventData, and can populate your eventData in userSchema.
so your code will be like that:
userSchema.js:
var userSchema = new Schema({
user: { type: String, required: true, trim: true },
password: { type: String, required: true, trim: true },
events: {type: mongoose.Schema.Types.ObjectId, ref: 'EventData' }
userSchema.plugin(AutoIncrement);
module.exports = mongoose.model('userSchema', userSchema);
});
And your eventDataSchema will be:
eventSchema.js:
var eventDataSchema = new Schema({
notes: { type: 'string',required: true, trim: true },
start_date: { type: Date,required: true },
end_date: { type: Date,required: true }
}
eventDataSchema.plugin(AutoIncrement);
module.exports = mongoose.model('EventData', eventDataSchema);
});
and then you can get the result like that:
index.js:
var eventSchema = require('./eventSchema');
var userSchema = require('./userSchema');
var populate = [{
path: 'events',
model: 'EventData',
select: '_id notes start_dat end_date'
}];
var find = function (query) {
return userSchema.find(query).populate(populate).exec();
}
console.log(find());
Result:
{
_id:cfgvhbjnkmkdcfxghgjklxnmbxhdhjxjhjhgx,
user: John Doe,
password: 123,
events: [ { _id: 1gfye56785g3ycgevhxeftx568765egcd,
notes: Event A,
start_date: 1/1/01,
end_date: 1/1/01
} ]
}