Vote for Yii2

Next steps will guide you through the process of installing yii2-vote using composer. Installation is a quick and easy three-step process.

Step 1: Install component via composer

Run command

php composer.phar require --prefer-dist chiliec/yii2-vote "~2.0"

or add

"chiliec/yii2-vote": "~2.0"

to the require section of your composer.json file.

Step 2: Configuring your application

Add following lines to your main configuration file:

'modules' => [
	'vote' => [
		'class' => 'chiliec\vote\Module',
		'allow_guests' => true, // if true will check IP, otherwise - UserID
		'allow_change_vote' => true, // if true vote can be changed
		'matchingModels' => [ // matching model names with whatever unique integer ID
			'article' => 0, // may be just integer value
			'audio' => ['id'=>1], // or array with 'id' key
			'video' => ['id'=>2, 'allow_guests'=>false], // own value 'allow_guests'
			'photo' => ['id'=>3, 'allow_guests'=>false, 'allow_change_vote'=>false],
		],		
	],
],

And add widget in view:

<?php echo \chiliec\vote\Display::widget([
	'model_name' => 'article', // name of current model
	'target_id' => $model->id, // id of current element
	// optional fields
	'view_aggregate_rating' => true, // set true to show aggregate_rating
	'mainDivOptions' => ['class' => 'text-center'], // div options
	'classLike' => 'glyphicon glyphicon-thumbs-up', // class for like button
	'classDislike' => 'glyphicon glyphicon-thumbs-down', // class for dislike button
	'separator' => '&nbsp;', // separator between like and dislike button
]); ?>

Step 3: Updating database schema

After you downloaded and configured Yii2-vote, the last thing you need to do is updating your database schema by applying the migrations:

$ php yii migrate/up --migrationPath=@vendor/chiliec/yii2-vote/migrations

That's all!

---

How to store rating in database

Sometimes you need to store rating in the same table (for example, for sorting). At first, create new fields rating and aggregate_rating inside target table:

ALTER TABLE `YOUR_TARGET_TABLE_NAME` ADD (
  `rating` smallint(6) NOT NULL,
  `aggregate_rating` float(3,2) unsigned NOT NULL
)

After that, add new behavior in target model:

    public function behaviors() {
        return [
            [
                'class' => \chiliec\vote\behaviors\RatingBehavior::className(),
                'model_name' => 'story', // name of this model
            ],
        ];
    }

Customizing JS-events

If you want to customize JS-events, you can rewrite widget properties:

• js_before_vote by default is not defined. Called before vote.
• js_change_counters responsible for change counters. Available data property (may contains content, success and changed properties).
• js_show_message responsible for show message. Available data property too.
• js_after_vote by default is not defined. Called after vote.
• js_error_vote called if the request fails. Available errorThrown, contains error message.

For example, if you want to use noty jQuery plugin for show notifications, you may rewrite js_show_message:

<?php echo \chiliec\vote\Display::widget([
	'model_name' => 'article',
	'target_id' => $model->id,
	'js_show_message' => "
		message = data.content;
		type = 'error';
		if(typeof(data.success)!=='undefined') { type = 'success'; }
		if(typeof(data.changed)!=='undefined') { type = 'information'; }
		noty({
			text: message,
			type: type,
			layout: 'topRight',
			timeout: 1500,
			force: true
		});
	",
]);

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Enjoy and don't forget to send me your Issues and Pull Requests :)