Angular-property-binder NPM

angular-property-binder

Tiny library which help you to create reference variables and keep them intact.

Don't use you're controller as a MODEL - Best Practice.
Controllers should bind references to Models only (and call methods returned from promises)

Installation

bower install angular-property-binder
npm install angular-property-binder

Simply add:

<script type="text/javascript" src="dist/js/angular-property-binder.min.js">
</script>

to your HTML, load module ['PropertyBinder'] and then inject the binder service to your controller|service|factory|provider

angular.module('MyApp', ['PropertyBinder'])
    .controller('MyController', [
    'PropertyBinder.services.binder', 
    function(bind) { 
        ... 
    }])

API Reference

Angular Property Binder service provides easy to use and minimalistic chaining methods.
Here is the full list of accessible methods:

Service PropertyBinder.services.binder

###binder( value )

Params:

value: String or Array. property name to bind.

Returns:

Object; the binder

Methods

###from( scope, path )

Sets the source of the property to bind Mandatory

Params:

scope: Object. The source object containing the property to bind.
path: String or Array. The path to the targeted source.(optional)
Useful when you wan't to create a reference on a nested property

Returns:

Object; the binder

###to( scope )

Sets the target of the property to bind Mandatory

Params:

scope: Object. The targeted object.

Returns:

Object; the binder

###apply( )

Applies the configured binding Mandatory

Returns:

Object; the binder

###as( alias )

Sets the alias to use for the binding Optional

Params:

scope: Object or Array or String. The alias(es) to use.

Returns:

Object; the binder

###onchange( callback )

Sets a onchange event Optional

Params:

callback: Function. The function called each time the property is updated from the created reference.

Returns:

Object; the binder

###seal( )

Seals the binding. The next assignations will not work after this.

Returns:

Object; the binder

###unseal( )

Unseals the binding. The next assignations will now work.

Returns:

Object; the binder

###destroy( )

Delete the created reference

=======================

Basic usage: See the full documented example in example/modules/app/...

//cf example/modules/app/controllers/appTest.es6

angular.module('App')
	//you can use $scope or controllerAs methods
	.controller('App.controllers.appTest', [
	'PropertyBinder.services.binder', 
	'App.factories.users', 
	function(bind, userFactory){
		
		// old method - just create a reference with the factory property
		// this.users = userFactory.users;	
		// issue : the reference can be broken by many things

		bind('users'/*can take an array of properties*/)
			.from(userFactory)
			.to(this /*or $scope*/)
			.apply();

		console.log(this.users); //same as console.log(userFactory.users)

		bind('eyeColor')
			//avoid reference deleting
			//sample : get the eye color of the first user in the userFactory array
			.from(userFactory, 'users.0'/*path toward the nested property*/)
			.to(this)
			.apply();

		// the service can be used to create a reference on a primitive data type like integer or float
		bind('nbToLoad')
			.from(userFactory)
			.to(this)
			.apply()
			//bind an event triggered when the property is updated from this reference
			.onchange((newVal, oldVal) => {
				console.log('property updated', newVal, oldVal);
				userFactory.load();
			});

		// bind(['users','fu', 'bar']).from(userFactory).to(this /*or $scope*/).apply();

		// you can also give an alias to your property
		// in this case the property will be accessible by this.userAlias
		var binding = bind('users').as('usersAlias').from(userFactory).to(this /*or $scope*/).apply();
		// var binding = bind(['users','fu', 'bar']).as({ 'users':'usersAlias','fu':'fub', 'bar':'bars'}).from(userFactory).to(this /*or $scope*/).apply();
		// or
		// var binding = bind(['users','fu', 'bar']).as(['usersAlias','fub','bars']).from(userFactory).to(this /*or $scope*/).apply();

		// if you want to keep secure the factory data you can also seal the reference
		binding.seal();
		binding.unseal();

		// binding.destroy()

		// you can even bind a function in order to keep the scope
		bind('load').to(this).from(userFactory).apply();
		// this.load = userFactory.load; 

		userFactory.load();
	}]);

Other:

var app = angular.module('app', ['PropertyBinder']);
app.factory('app.factories.user', function() {
	return {
		authenticate: function() {/**/},
		update: function() {/**/},
		register: function() {/**/},
		user: {
			name: 'Jack',
			firstname: 'Bar',
			location: {
				city: 'Fu',
				country: 'FuBar'
			}
		}
	};
});
	
app.controller('app.controllers.sample', [
	'$scope',
	'app.factories.user', 
	'PropertyBinder.services.binder', 
function($scope, userFactory, bind) {

	bind('user').from(userFactory).to($scope).apply();
	console.log($scope.user.firstname); // "Bar"

	var binding = bind('firstname').as('userName').to($scope).from(userFactory, ['user']).apply();
	console.log($scope.userName); // "Bar"
	$scope.userName = 'FuFuBarBar';
	console.log($scope.userName, userFactory.user.firstname, $scope.user.firstname); // "FuFuBarBar", "FuFuBarBar", "FuFuBarBar"

	binding.seal();
	$scope.userName = 'Bar'; //it will not work
	console.log($scope.userName, userFactory.user.firstname, $scope.user.firstname); // "FuFuBarBar", "FuFuBarBar", "FuFuBarBar"
	$scope.user.firstname = 'Bar';
	console.log($scope.userName, userFactory.user.firstname, $scope.user.firstname); // "Bar", "Bar", "Bar"

	binding.unseal();

	bind(['city', 'country']).to($scope).from(userFactory, 'user.location').apply();

	bind('register').from(userFactory).to($scope).apply(); //similar to $scope.register = userFactory.bind(userFactory);

	binding.destroy();

}]);