LazyBoy: A Couchdb ODM For Node.js

Create

Create a new model after it has be defined.

var User = Model('User');
var my_user = User.create({name: "Jimi", surname: "Hendrix"});

This creates an instance but does not save it to the database.

Before create callback

LazyBoy supports a before create callback. It is defined on the model and will be called once when the model is created.

var User = Model(‘User’);

User.beforeCreate(function (user) { // do something before create model });

Save

To save a model to the database.

	myuser.save(function (err, saved_user) {
		// do something with the model
	});

If the model has been saved before it will update the model otherwise it will create a new model. Once the save is complete it will return the model in the callback with an id property and revision. Two date stamps are added to all models, DateCreated is the date the model was first saved to Couchdb and the DateUpdated which is the timestamp for when the model was last saved to Couchdb.

Save Callbacks

Before and after save callbacks are supported. They are defined on the model and will be called when each model is saved.

var User = Model(‘User’);

User.beforeSave(function (user) { // do something before save model });

User.afterSave(function (user) { // do something after save model });

Remove

Remove a model from the database as follows:

	myuser.remove(function (err) {
		// model removed
	});

This will remove the model from the database, no getting it back after this!

Remove Callbacks

Two callbacks for the remove method are supported.

var User = Model(‘User’);

User.beforeRemove(function (user) { // do something before removing model });

User.afterRemove(function (user) { // do something after removing model });