README

❤️ This package helps you to add user based follow system to your model.

Features

• Support actions:
  • Follow
  • Like
  • Bookmark
  • Subscribe
  • Favorite
  • Vote (Upvote & Downvote)

Installation

Required

• PHP 7.0 +
• Laravel 5.5 +

You can install the package using composer

$ composer require overtrue/laravel-follow -vvv

Then add the service provider to config/app.php

Overtrue\LaravelFollow\FollowServiceProvider::class

Publish the migrations file:

$ php artisan vendor:publish --provider="Overtrue\LaravelFollow\FollowServiceProvider" --tag="migrations"

As optional if you want to modify the default configuration, you can publish the configuration file:

$ php artisan vendor:publish --provider="Overtrue\LaravelFollow\FollowServiceProvider" --tag="config"

And create tables:

$ php artisan migrate

Finally, add feature trait into User model:

use Overtrue\LaravelFollow\Traits\CanFollow;
use Overtrue\LaravelFollow\Traits\CanBeFollowed;

class User extends Model
{
    use CanFollow, CanBeFollowed;
}

Usage

Add CanXXX Traits to User model.

use Overtrue\LaravelFollow\Traits\CanFollow;
use Overtrue\LaravelFollow\Traits\CanLike;
use Overtrue\LaravelFollow\Traits\CanFavorite;
use Overtrue\LaravelFollow\Traits\CanSubscribe;
use Overtrue\LaravelFollow\Traits\CanVote;
use Overtrue\LaravelFollow\Traits\CanBookmark;

class User extends Model
{
    use CanFollow, CanBookmark, CanLike, CanFavorite, CanSubscribe, CanVote;
}

Add CanBeXXX Trait to target model, such as 'Post' or 'Music' ...:

use Overtrue\LaravelFollow\Traits\CanBeLiked;
use Overtrue\LaravelFollow\Traits\CanBeFavorited;
use Overtrue\LaravelFollow\Traits\CanBeVoted;
use Overtrue\LaravelFollow\Traits\CanBeBookmarked;

class Post extends Model
{
    use CanBeLiked, CanBeFavorited, CanBeVoted, CanBeBookmarked;
}

All available APIs are listed below.

Follow

\Overtrue\LaravelFollow\Traits\CanFollow

$user->follow($targets)
$user->unfollow($targets)
$user->toggleFollow($targets)
$user->followings()->get() // App\User:class
$user->followings(App\Post::class)->get()
$user->areFollowingEachOther($anotherUser);
$user->isFollowing($target)

\Overtrue\LaravelFollow\Traits\CanBeFollowed

$object->followers()->get()
$object->isFollowedBy($user)

Bookmark

\Overtrue\LaravelFollow\Traits\CanBookmark

$user->bookmark($targets)
$user->unbookmark($targets)
$user->toggleBookmark($targets)
$user->hasBookmarked($target)
$user->bookmarks()->get() // App\User:class
$user->bookmarks(App\Post::class)->get()

\Overtrue\LaravelFollow\Traits\CanBeBookmarked

$object->bookmarkers()->get() // or $object->bookmarkers 
$object->isBookmarkedBy($user)

Like

\Overtrue\LaravelFollow\Traits\CanLike

$user->like($targets)
$user->unlike($targets)
$user->toggleLike($targets)
$user->hasLiked($target)
$user->likes()->get() // default object: App\User:class
$user->likes(App\Post::class)->get()

\Overtrue\LaravelFollow\Traits\CanBeLiked

$object->likers()->get() // or $object->likers
$object->fans()->get() // or $object->fans
$object->isLikedBy($user)

Favorite

\Overtrue\LaravelFollow\Traits\CanFavorite

$user->favorite($targets)
$user->unfavorite($targets)
$user->toggleFavorite($targets)
$user->hasFavorited($target)
$user->favorites()->get() // App\User:class
$user->favorites(App\Post::class)->get()

\Overtrue\LaravelFollow\Traits\CanBeFavorited

$object->favoriters()->get() // or $object->favoriters 
$object->isFavoritedBy($user)

Subscribe

\Overtrue\LaravelFollow\Traits\CanSubscribe

$user->subscribe($targets)
$user->unsubscribe($targets)
$user->toggleSubscribe($targets)
$user->hasSubscribed($target)
$user->subscriptions()->get() // default object: App\User:class
$user->subscriptions(App\Post::class)->get()

Overtrue\LaravelFollow\Traits\CanBeSubscribed

$object->subscribers() // or $object->subscribers 
$object->isSubscribedBy($user)

Vote

\Overtrue\LaravelFollow\Traits\CanVote

$user->vote($target) // Vote with 'upvote' for default
$user->upvote($target)
$user->downvote($target)
$user->cancelVote($target)
$user->hasUpvoted($target)
$user->hasDownvoted($target)
$user->votes(App\Post::class)->get()
$user->upvotes(App\Post::class)->get()
$user->downvotes(App\Post::class)->get()

\Overtrue\LaravelFollow\Traits\CanBeVoted

$object->voters()->get()
$object->upvoters()->get()
$object->downvoters()->get()
$object->isVotedBy($user)
$object->isUpvotedBy($user)
$object->isDownvotedBy($user)

Parameters

All of the above mentioned methods of creating relationships, such as 'follow', 'like', 'unfollow', 'unlike', their syntax is as follows:

follow(array|int|\Illuminate\Database\Eloquent\Model $targets, $class = __CLASS__)

So you can call them like this:

// Id / Id array
$user->follow(1); // targets: 1, $class = App\User
$user->follow(1, App\Post::class); // targets: 1, $class = App\Post
$user->follow([1, 2, 3]); // targets: [1, 2, 3], $class = App\User

// Model
$post = App\Post::find(7);
$user->follow($post); // targets: $post->id, $class = App\Post

// Model array
$posts = App\Post::popular()->get();
$user->follow($posts); // targets: [1, 2, ...], $class = App\Post

Query relations

$followers = $user->followers
$followers = $user->followers()->where('id', '>', 10)->get()
$followers = $user->followers()->orderByDesc('id')->get()

The other is the same usage.

Working with model.

use Overtrue\LaravelFollow\FollowRelation;

// get most popular object

// all types
$relations = FollowRelation::popular()->get();

// followable_type = App\Post
$relations = FollowRelation::popular(App\Post::class)->get(); 

// followable_type = App\User
$relations = FollowRelation::popular('user')->get();
 
// followable_type = App\Post
$relations = FollowRelation::popular('post')->get();

// Pagination
$relations = FollowRelation::popular(App\Post::class)->paginate(15); 

Events

• Overtrue\LaravelFollow\RelationAttaching
• Overtrue\LaravelFollow\RelationAttached
• Overtrue\LaravelFollow\RelationDetaching
• Overtrue\LaravelFollow\RelationDetached
• Overtrue\LaravelFollow\RelationToggling
• Overtrue\LaravelFollow\RelationToggled

Event::listen(\Overtrue\LaravelFollow\RelationAttached::class, function($event) {
    // $event->causer; 
    // $event->getTargetsCollection(); 
    // $event->getRelationType();
});

About toggled event.

There has a extra properties for Overtrue\LaravelFollow\RelationToggled event.

$event->results; // ['attached' => [1, 2, 3], 'detached' => [5, 6]]
$event->attached; // [1, 2, 3]
$event->detached; // [5, 6]

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License

MIT