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nodee-model
Advanced tools
Sometimes your application is not a simple to-do list and you need to write complex business logic. Rather than strictly predefined CRUD methods and hooks, nodee-model is a set of tools which you can use to write your own logic, data sources and reusable behaviours.
npm install nodee-model
var Model = require('nodee-model');
/*
* create employee model, which:
* 1. is stored in mongo database
* 2. is in tree structure
* 3. is orderable
* 4. can handle process of changing job - it is not just a simple update,
* it has to be confirmed by HR department
*/
var Employee = Model.define('Employee', [ 'MongoDataSource', 'Orderable', 'Tree' ], {
name:{ isString:true },
surname:{ isString:true },
salary:{ isNumber:true, round:2 },
job:{ isIn:[ 'project_manager', 'sales', 'support'] },
jobConfirmed:{ isBool:true },
// address as submodel
address: { model: Model('Address') },
// or array of submodels
addresses: { arrayOf: Model('Address') }
});
// define connection details by extending inherited defaults
Employee.extendDefaults({
connection:{
host: 'localhost',
port: 27017,
database:'myapp',
collection:'employees'
}
});
// now, add hookable method
Employee.prototype.changeJob = Employee.wrapHooks('changeJob', function(newJob, cb){
var employee = this;
employee.job = newJob;
employee.jobConfirmed = false;
employee.update(cb);
});
// register "beforeChangeJob" listener
Employee.on('beforeChangeJob', function(next){
// notify HR department
next();
});
// init model, this will ensure indexes or do some work to init datastore
Employee.init();
// now we can get employee and change his job
Employee.collection().find({ name:'Chuck', surname:'Norris' }).one(function(err, employee){
employee.changeJob('super_agent', function(err){
// job changed, and HR department was notified
// (but I am sure they can't change Chuck's job - nobody can :)
});
});
// if you need to define a new type of employee, just inherit it from Employee.
// It will inherit all methods including registered events like "beforeJobChange".
var SuperEmployee = Model.define('SuperEmployee', ['Employee']);
FAQs
Advanced, database agnostic ODM
The npm package nodee-model receives a total of 15 weekly downloads. As such, nodee-model popularity was classified as not popular.
We found that nodee-model demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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