Introduction

Laravel Likeable simplify management of Eloquent model's likes & dislikes. Make any model likeable & dislikeable in a minutes!

Contents

• Features
• Installation
• Usage
  • Prepare likeable model
  • Available methods
  • Scopes
  • Events
  • Console commands
• Extending
• Change log
• Contributing
• Testing
• Security
• Credits
• Alternatives
• License
• About CyberCog

Features

• Designed to work with Laravel Eloquent models.
• Using contracts to keep high customization capabilities.
• Using traits to get functionality out of the box.
• Most part of the the logic is handled by the LikeableService.
• Has Artisan command likeable:recount {model?} {type?} to re-fetch likes counters.
• Likeable model can has Likes and Dislikes.
• Likes and Dislikes for one model are mutually exclusive.
• Get Likeable models ordered by likes count.
• Events for like, unlike, dislike, undislike methods.
• Covered with unit tests.

Installation

First, pull in the package through Composer.

composer require cybercog/laravel-likeable

And then include the service provider within app/config/app.php.

'providers' => [
    Cog\Likeable\Providers\LikeableServiceProvider::class,
],

At last you need to publish and run database migrations.

php artisan vendor:publish --provider="Cog\Likeable\Providers\LikeableServiceProvider" --tag=migrations
php artisan migrate

Usage

Prepare likeable model

Use HasLikes contract in model which will get likes behavior and implement it or just use HasLikes trait.

use Cog\Likeable\Contracts\HasLikes as HasLikesContract;
use Cog\Likeable\Traits\HasLikes;
use Illuminate\Database\Eloquent\Model;

class Article extends Model implements HasLikesContract {
    use HasLikes;
}

Available methods

Likes

Like model

$article->like(); // current user
$article->like($user->id);

Remove like mark from model

$article->unlike(); // current user
$article->unlike($user->id);

Toggle like mark of model

$article->likeToggle(); // current user
$article->likeToggle($user->id);

Get model likes count

$article->likesCount;

Get model likes counter

$article->likesCounter;

Get likes relation

$article->likes();

Get iterable Illuminate\Database\Eloquent\Collection of existing model likes

$article->likes;

Boolean check if user liked model

$article->liked; // current user
$article->liked(); // current user
$article->liked($user->id);

Delete all likes for model

$article->removeLikes();

Dislikes

Dislike model

$article->dislike(); // current user
$article->dislike($user->id);

Remove dislike mark from model

$article->undislike(); // current user
$article->undislike($user->id);

Toggle dislike mark of model

$article->dislikeToggle(); // current user
$article->dislikeToggle($user->id);

Get model dislikes count

$article->dislikesCount;

Get model dislikes counter

$article->dislikesCounter;

Get dislikes relation

$article->dislikes();

Get iterable Illuminate\Database\Eloquent\Collection of existing model dislikes

$article->dislikes;

Boolean check if user disliked model

$article->disliked; // current user
$article->disliked(); // current user
$article->disliked($user->id);

Delete all dislikes for model

$article->removeDislikes();

Likes and Dislikes

Get difference between likes and dislikes

$article->likesDiffDislikesCount;

Get likes and dislikes relation

$article->likesAndDislikes();

Get iterable Illuminate\Database\Eloquent\Collection of existing model likes and dislikes

$article->likesAndDislikes;

Scopes

Find all articles liked by user

Article::whereLikedBy($user->id)
    ->with('likesCounter') // Allow eager load (optional)
    ->get();

Find all articles disliked by user

Article::whereDislikedBy($user->id)
    ->with('dislikesCounter') // Allow eager load (optional)
    ->get();

Fetch Likeable models by likes count

$sortedArticles = Article::orderByLikesCount()->get();
$sortedArticles = Article::orderByLikesCount('asc')->get();

Uses desc as default order direction.

Fetch Likeable models by dislikes count

$sortedArticles = Article::orderByDislikesCount()->get();
$sortedArticles = Article::orderByDislikesCount('asc')->get();

Uses desc as default order direction.

Events

On each like added \Cog\Likeable\Events\ModelWasLiked event is fired.

On each like removed \Cog\Likeable\Events\ModelWasUnliked event is fired.

On each dislike added \Cog\Likeable\Events\ModelWasDisliked event is fired.

On each dislike removed \Cog\Likeable\Events\ModelWasUndisliked event is fired.

Console commands

Recount likes and dislikes of all model types

likeable:recount

Recount likes and dislikes of concrete model type (using morph map alias)

likeable:recount --model="article"

Recount likes and dislikes of concrete model type (using fully qualified class name)

likeable:recount --model="App\Models\Article"

Recount only likes of all model types

likeable:recount --type="like"

Recount only likes of concrete model type (using morph map alias)

likeable:recount --model="article" --type="like"

Recount only likes of concrete model type (using fully qualified class name)

likeable:recount --model="App\Models\Article" --type="like"

Recount only dislikes of all model types

likeable:recount --type="dislike"

Recount only dislikes of concrete model type (using morph map alias)

likeable:recount --model="article" --type="dislike"

Recount only dislikes of concrete model type (using fully qualified class name)

likeable:recount --model="App\Models\Article" --type="dislike"

Extending

You can override core classes of package with your own implementations:

• Models\Like
• Models\LikeCounter
• Services\LikeableService

Note: Don't forget that all custom models must implement original models interfaces.

To make it you should use container binding interfaces to implementations in your application service providers.

Use model class own implementation

$this->app->bind(
    \Cog\Likeable\Contracts\Like::class,
    \App\Models\CustomLike::class
);

Use service class own implementation

$this->app->singleton(
    \Cog\Likeable\Contracts\LikeableService::class,
    \App\Services\CustomService::class
);

After that your CustomLike and CustomService classes will be instantiable with helper method app().

$model = app(\Cog\Likeable\Contracts\Like::class);
$service = app(\Cog\Likeable\Contracts\LikeableService::class);

Change log

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Testing

You can run the tests with:

vendor/bin/phpunit

Security

If you discover any security related issues, please email oss@cybercog.su instead of using the issue tracker.

Credits

• Anton Komarev
• All Contributors

Alternatives

• rtconner/laravel-likeable
• faustbrian/laravel-likeable
• sukohi/evaluation
• zvermafia/lavoter

Feel free to add more alternatives as Pull Request.

License

• Laravel Likeable package is open-sourced software licensed under the MIT license.

About CyberCog

CyberCog is a Social Unity of enthusiasts. Research best solutions in product & software development is our passion.