Laravel Favorites Plugin

Trait for Laravel Eloquent models to allow easy implementation of a "like" or "favorite" or "remember" feature.
Based heavily on rtconner/laravel-likeable.

Composer Install

composer require sugar/laravel-favorites

Install and then run the migrations

'providers' => [
	\Sugar\Favorites\FavoritesServiceProvider::class,
],

php artisan vendor:publish --provider="Sugar\Favorites\FavoritesServiceProvider"
php artisan migrate

Setup your models

class Article extends \Illuminate\Database\Eloquent\Model {
	use \Sugar\Favorites\Likeable;
}

Configuration file

After installation, the config file is located at config/favorites.php
You can :

• enable session fallback for likes
• define the lifetime (in minutes) for the command favorites:clean
• define if the command favorites:clean should delete only session likes

Likeable Trait

Like model

$article->like(); // like the article for current user / session
$article->like($myUserId, $false); // like the article for specific user

Unlike model

$article->unlike(); // like the article for current user / session
$article->unlike($myUserId, $false); // unlike the article for specific user

Like count

$article->likeCount; // get count of likes
$article->getLikeCountByDate('2012-01-30'); // Count likes for a specific date
$article->getLikeCountByDate('2012-01-30', '2016-01-30'); // Count likes for a date range

Check if Model is currently liked

$article->liked(); // check if currently logged in user or session user liked the article
$article->liked($myUserId, $false);

Get collection of existing likes

$article->likes; // Iterable Illuminate\Database\Eloquent\Collection of existing likes 

Find only articles where user liked them

Article::whereLikedBy()->get(); // for the current user / session
Article::whereLikedBy($myUserId, false)->get(); // for a specific user

Command

Delete likes after a certain amount of time

Because someone's favorite could be 'outdated' and not representative anymore.
There is a command for that. The time after which a like is outdated can be set in the config, also you can define if it should only delete session likes

php artisan favorites:clean

Helper class

In order to convert session likes to user likes (for example after a visitor registers on you site) you need to use the Helper class.
This workaround is nescessary because session id's are regenerated after login/logout.

class AuthController extends Controller {
    use AuthenticatesAndRegistersUsers {
        login as traitlogin;
        register as traitregister;
    }
    use ThrottlesLogins;

    public function login(Request $request, \Sugar\Favorites\Helper $helper) {
        $session_id = $helper->sessionId();
        $return = $this->traitlogin($request);
        if(Auth::check()){
            $helper->convertSessionToUserLikes($session_id, Auth::user()->id);
        }
        return $return;
    }
    public function register(Request $request, \Sugar\Favorites\Helper $helper){
        $session_id = $helper->sessionId();
        $return = $this->traitregister($request);
        if(Auth::check()){
            $helper->convertSessionToUserLikes($session_id, Auth::user()->id);
        }
        return $return;
    }
    ...
}

Credits

• Gregory Claeyssens - http://sugar.gent
• Robert Conner - http://smartersoftware.net