Laravel Reacts

Laravel Reacts lets any Eloquent model react to any other. A reaction is either a registered type you define in the configuration, such as like or love, or, in groups that allow it, one free-form emoji such as 🚀. Add CanReact to the model that reacts, such as a user, and HasReactions to the model that receives reactions, such as a post or a chat message. Every reaction is one row in a single reactions table; everything else, the types, their labels and emoji, and which kind of content offers which types, lives in config/pharaonic/reacts.php.

#Installation

Install the package with Composer and create its table.

#Requirements

• PHP 8.3, 8.4 or 8.5
• Laravel 13
• MySQL, MariaDB, PostgreSQL or SQLite
• PCRE2 10.40 or later for free-form emoji (PHP's bundled PCRE on most current builds)

#Composer Installation

composer require pharaonic/laravel-reacts

The service provider is registered automatically.

#Run Migrations

The package loads its migration automatically, so the reactions table is created with your other migrations:

php artisan migrate

To change the migration before it runs, publish it into database/migrations:

php artisan vendor:publish --tag=reacts-migrations

The published file keeps the package's file name, 2026_11_13_000001_create_pharaonic_reactions_table.php, so Laravel runs your copy instead of the package's, never both.

#Publish Configuration

Publish the configuration to define your own reaction types and groups:

php artisan vendor:publish --tag=reacts-config

The file is published to config/pharaonic/reacts.php.

#Configuration

Every setting lives in config/pharaonic/reacts.php and is read as pharaonic.reacts.*. The file holds only arrays, strings and booleans, so php artisan config:cache works.

 1return [
 2    'model' => \Pharaonic\Laravel\Reacts\Models\Reaction::class,
 3    'table' => 'reactions',
 4    'connection' => null,
 5 
 6    'definitions' => [
 7        'like' => ['label' => 'Like', 'emoji' => '👍'],
 8        'love' => ['label' => 'Love', 'emoji' => '❤️'],
 9        'laugh' => ['label' => 'Laugh', 'emoji' => '😂'],
10        'wow' => ['label' => 'Wow', 'emoji' => '😮'],
11        'sad' => ['label' => 'Sad', 'emoji' => '😢'],
12        'angry' => ['label' => 'Angry', 'emoji' => '😡'],
13        'fire' => ['label' => 'Fire', 'emoji' => '🔥'],
14    ],
15 
16    'default_group' => 'default',
17 
18    'groups' => [
19        'default' => ['types' => ['like', 'love']],
20        'posts' => ['extends' => 'default', 'types' => ['laugh', 'wow', 'sad', 'angry']],
21        'chat' => ['types' => ['love', 'laugh', 'fire'], 'free_form' => true],
22    ],
23 
24    'mode' => 'multiple',
25    'cleanup_on_delete' => true,
26    'preserve_on_soft_delete' => true,
27    'policy' => \Pharaonic\Laravel\Reacts\Support\DefaultReactionPolicy::class,
28];

#Settings

#Validation

The package validates the configuration the first time it needs it and throws InvalidReactionConfiguration with the setting's name for an unknown group, an inheritance cycle, a type a group lists but no definition defines, a key that is not a valid type key, a definition without a label, an unsafe icon, an unknown field, a mode other than single or multiple, a model class that is not a Reaction, or a connection that does not exist.

#Basic Usage

#Add the traits

Add CanReact to the model that reacts. It does not have to be a user: a team, a bot or any other model works.

1namespace App\Models;
2 
3use Illuminate\Foundation\Auth\User as Authenticatable;
4use Pharaonic\Laravel\Reacts\Concerns\CanReact;
5 
6class User extends Authenticatable
7{
8    use CanReact;
9}

Add HasReactions to the model that receives reactions. It gives the model its reactions() relation, its counts and its query scope.

1namespace App\Models;
2 
3use Illuminate\Database\Eloquent\Model;
4use Pharaonic\Laravel\Reacts\Concerns\HasReactions;
5 
6class Post extends Model
7{
8    use HasReactions;
9}

A model can use both traits, for example users who react to each other.

#React

react() returns whether the stored state changed:

1$user->react($post, 'like');      // true: added
2$user->react($post, 'love');      // true: a second type, in multiple mode
3$user->react($post, 'love');      // false: already there, nothing written
4$user->react($post, 'LOVE');      // false: keys are lowercased first

The type must be offered by the reactable's group, or react() throws InvalidReactionType. A free-form emoji works only in groups with free_form on:

1$user->react($chatMessage, '🚀');  // true
2$user->react($post, '🚀');         // InvalidReactionType: the group does not allow free-form emoji

#Check and list

1$user->hasReacted($post);           // true: any type
2$user->hasReacted($post, 'love');   // true: this type
3$post->reactedBy($user, 'like');    // the same check, from the reactable
4 
5$user->reactionsOn($post);          // Collection of Reaction models, oldest first
6$user->reactionsOn($post)->pluck('type_key'); // ['like', 'love']

Checks with an unsaved model return false and an empty collection.

#Remove and toggle

1$user->unreact($post, 'love');        // true: removed
2$user->unreact($post, 'love');        // false: nothing to remove
3 
4$user->toggleReaction($post, 'wow');  // true: added
5$user->toggleReaction($post, 'wow');  // false: removed
6 
7$user->clearReactions($post);         // 2: the number of reactions removed

toggleReaction() returns the new state of that type. unreact() and toggleReaction() also remove a type the group no longer offers, so old reactions never get stuck.

#From the reactable

HasReactions has the same writes from the other side:

1$post->reactBy($user, 'like');     // the same as $user->react($post, 'like')
2$post->unreactBy($user, 'like');   // the same as $user->unreact($post, 'like')

#Counts

1$post->reactionCounts();   // ['like' => 10, 'love' => 5, '🚀' => 2]: most first, then by key
2$post->topReaction();      // 'like', or null when there are none

Counts come from one grouped query, or from the loaded reactions relation when it is loaded. They include every stored row, also types a group no longer offers.

#Reaction Types and Groups

A reaction is stored as its key: a registered key such as love, or one free-form emoji such as 🚀. Labels, emoji and icons only describe how a type looks, so you can change them at any time without touching stored reactions.

#Definitions

definitions lists every registered type. A key is a lowercase letter followed by up to 63 lowercase letters, digits, _ or -.

1'definitions' => [
2    'like' => ['label' => 'Like', 'emoji' => '👍'],
3    'insightful' => ['label' => 'Insightful', 'emoji' => '💡', 'meta' => ['color' => 'amber']],
4    'party_cat' => ['label' => 'Party Cat', 'icon' => '/images/reactions/party-cat.webp'],
5],

#Groups

A group is the list of types one kind of content offers. A group may extend another: it offers the parent's types first, then its own.

1'groups' => [
2    'default' => ['types' => ['like', 'love']],
3    'posts' => ['extends' => 'default', 'types' => ['laugh', 'wow', 'sad', 'angry']],
4    'chat' => ['types' => ['love', 'laugh', 'fire'], 'free_form' => true],
5],

Here posts offer like, love, laugh, wow, sad and angry, in that order.

A reactable uses default_group unless it implements ResolvesReactionGroup:

 1namespace App\Models;
 2 
 3use Illuminate\Database\Eloquent\Model;
 4use Pharaonic\Laravel\Reacts\Concerns\HasReactions;
 5use Pharaonic\Laravel\Reacts\Contracts\ResolvesReactionGroup;
 6 
 7class ChatMessage extends Model implements ResolvesReactionGroup
 8{
 9    use HasReactions;
10 
11    public function reactionGroup(): string
12    {
13        return 'chat';
14    }
15}

reactionGroup() may depend on the model, for example return $this->is_announcement ? 'posts' : 'chat';.

#Free-form emoji

In a group with 'free_form' => true, a reactor may also react with one emoji of their choice. A group without the setting takes it from the group it extends; a group that sets nothing accepts no free-form emoji.

1$user->react($chatMessage, '🚀');           // true
2$user->react($chatMessage, '👍🏽');          // true: skin tones, flags, keycaps and ZWJ sequences count as one emoji
3$user->react($chatMessage, '🚀🔥');          // InvalidReactionType: two emoji
4$user->react($chatMessage, 'nice');         // InvalidReactionType: text is never an emoji reaction

Free-form reactions do not need a definition: they are stored in the reactions table like any other reaction, with the emoji as the key.

Every spelling of an emoji is stored the same way: an emoji that shows as an emoji by default never keeps U+FE0F, and one that shows as text by default always gets it. So ❤ and ❤️ are one reaction, and so are 🚀 and 🚀 followed by U+FE0F.

#Removing a type

Take a type out of a group, or out of definitions, and new reactions with it are refused. Existing ones stay: they are still counted, hasReacted() still sees them, and unreact() and toggleReaction() still remove them. Listing Reactions shows them under used_other.

#Single and Multiple Mode

The mode decides how many reactions one reactor keeps on one reactable.

Repeating the same type is a no-op in both modes and returns false.

#Set the mode

Set the default for the whole application:

1'mode' => 'single',

Or let a reactable decide with ResolvesReactionMode. The mode belongs to the reactable, never to the reactor:

 1namespace App\Models;
 2 
 3use Illuminate\Database\Eloquent\Model;
 4use Pharaonic\Laravel\Reacts\Concerns\HasReactions;
 5use Pharaonic\Laravel\Reacts\Contracts\ResolvesReactionMode;
 6 
 7class Post extends Model implements ResolvesReactionMode
 8{
 9    use HasReactions;
10 
11    public function reactionMode(): string
12    {
13        return 'single';
14    }
15}

reactionMode() must return single or multiple, and the same answer for the same stored model on every server. Never take it from the request.

#Single mode

1$user->react($post, 'like');           // true: created
2$user->react($post, 'love');           // true: like replaced by love, one row
3$user->react($post, 'love');           // false: unchanged
4$user->hasReacted($post, 'like');      // false
5$user->toggleReaction($post, 'wow');   // true: love replaced by wow
6$user->toggleReaction($post, 'wow');   // false: removed
7$user->unreact($post, 'like');         // false: unreact never removes another type

A replacement is one change: the stored row takes the new type, and one ReactionReplaced event is dispatched, not a removal and a creation.

#Changing the mode later

Changing the mode does not rewrite stored rows, and reads never change them: counts and reactionsOn() show what is stored. The next write on a pair brings it in line:

• after a switch to single, the next react() keeps one reaction and removes the others in the same transaction, with one ReactionReplaced;
• after a switch to multiple, the next write simply allows a second type.

To clean up every pair at once, see Integrity and Concurrency.

#Listing Reactions

ReactionView turns the reactions of a reactable into an array you can pass to Blade or return as JSON. It never writes, and holds only strings, numbers and booleans.

1use Pharaonic\Laravel\Reacts\Support\ReactionView;
2 
3$view = ReactionView::for($post, auth()->user())->toArray();

The viewer may be null: then nothing is selected.

#The array

 1{
 2  "mode": "single",
 3  "free_form_enabled": false,
 4  "total": 15,
 5  "choices": [
 6    {"kind": "registered", "key": "like", "label": "Like", "emoji": "👍", "icon": null, "count": 10, "selected": false, "selectable": true},
 7    {"kind": "registered", "key": "love", "label": "Love", "emoji": "❤️", "icon": null, "count": 5, "selected": true, "selectable": true},
 8    {"kind": "registered", "key": "wow", "label": "Wow", "emoji": "😮", "icon": null, "count": 0, "selected": false, "selectable": true}
 9  ],
10  "used_other": []
11}

Each item has kind (registered or emoji), key, label, emoji, icon, count, selected (the viewer has this reaction) and selectable. selectable means the group offers the type, or, for an emoji, that the group accepts free-form emoji; it is not an authorization decision. A type with no definition left gets a label made from its key (party_cat becomes "Party cat") and no emoji or icon.

#In Blade

The package has no routes; these are your application's.

1use App\Http\Controllers\PostReactionsController;
2 
3Route::get('posts/{post}', [PostReactionsController::class, 'show'])->name('posts.show');
4Route::post('posts/{post}/reactions/toggle', [PostReactionsController::class, 'toggle'])
5    ->middleware('auth')->name('posts.reactions.toggle');

 1namespace App\Http\Controllers;
 2 
 3use App\Models\Post;
 4use Illuminate\Http\Request;
 5use Illuminate\Support\Facades\Gate;
 6use Pharaonic\Laravel\Reacts\Support\ReactionView;
 7 
 8class PostReactionsController extends Controller
 9{
10    public function show(Post $post, Request $request)
11    {
12        return view('posts.show', [
13            'post' => $post,
14            'reactionView' => ReactionView::for($post, $request->user())->toArray(),
15        ]);
16    }
17 
18    public function toggle(Post $post, Request $request)
19    {
20        Gate::authorize('react', $post); // your Gate or Policy
21        $input = $request->validate(['type' => ['required', 'string', 'max:128']]);
22        $request->user()->toggleReaction($post, $input['type']);
23 
24        return back();
25    }
26}

 1<p>Total reactions: {{ $reactionView['total'] }}</p>
 2 
 3@foreach ($reactionView['choices'] as $reaction)
 4    <form action="{{ route('posts.reactions.toggle', $post) }}" method="POST">
 5        @csrf
 6        <input type="hidden" name="type" value="{{ $reaction['key'] }}">
 7        <button type="submit"
 8                aria-pressed="{{ $reaction['selected'] ? 'true' : 'false' }}"
 9                {{ ! auth()->check() || ! $reaction['selectable'] ? 'disabled' : '' }}>
10            @if ($reaction['icon'])
11                <img src="{{ $reaction['icon'] }}" alt="" width="20" height="20">
12            @elseif ($reaction['emoji'])
13                <span aria-hidden="true">{{ $reaction['emoji'] }}</span>
14            @endif
15            {{ $reaction['label'] }} ({{ $reaction['count'] }})
16        </button>
17    </form>
18@endforeach
19 
20@foreach ($reactionView['used_other'] as $reaction)
21    <span>{{ $reaction['emoji'] ?: $reaction['label'] }} ({{ $reaction['count'] }})</span>
22@endforeach
23 
24@if ($reactionView['free_form_enabled'] && auth()->check())
25    <form method="POST" action="{{ route('posts.reactions.toggle', $post) }}">
26        @csrf
27        <input name="type" placeholder="🚀" required>
28        <button type="submit">React</button>
29    </form>
30@endif

Clicking a selected reaction removes it; clicking another adds it, or replaces the previous one in single mode. Disabled buttons are presentation only: the controller still authorizes every request.

#As JSON

 1use App\Models\Post;
 2use Illuminate\Http\Request;
 3use Illuminate\Support\Facades\Gate;
 4use Pharaonic\Laravel\Reacts\Support\ReactionView;
 5 
 6Route::get('posts/{post}/reactions', function (Post $post, Request $request) {
 7    return response()->json(['data' => ReactionView::for($post, $request->user())->toArray()]);
 8});
 9 
10Route::post('posts/{post}/reactions', function (Post $post, Request $request) {
11    Gate::authorize('react', $post);
12    $request->user()->toggleReaction($post, $request->validate(['type' => 'required|string|max:128'])['type']);
13 
14    return response()->json(['data' => ReactionView::for($post, $request->user())->toArray()]);
15})->middleware('auth:api');

The array holds counts and the viewer's own selection only, never other reactors' ids. Icons are strings, never files or HTML.

#A paginated feed

ReactionView::forMany() builds the views of many reactables in two queries, whatever the page size: one for every count, one for the viewer's reactions. Pass the paginator's items, not the paginator; models of different classes can be mixed.

1$posts = Post::query()->latest()->paginate(15);
2$reactionViews = ReactionView::forMany($posts->items(), $request->user());
3 
4return view('posts.index', compact('posts', 'reactionViews'));

1@foreach ($posts as $post)
2    @php($reactions = $reactionViews->get($post))
3    <article>
4        <h3>{{ $post->title }}</h3>
5        @foreach ($reactions['choices'] as $reaction)
6            <span>{{ $reaction['emoji'] ?: $reaction['label'] }}: {{ $reaction['count'] }}</span>
7        @endforeach
8    </article>
9@endforeach

get() finds a model by its morph type and key, and throws InvalidArgumentException for a model that was not in the batch; has() checks first.

#Relationships and Queries

#Relations

reactions() (from HasReactions) and givenReactions() (from CanReact) are plain MorphMany relations, so eager loading and counting work as usual:

1$posts = Post::query()->withCount('reactions')->with('reactions.reactor')->latest()->get();
2 
3$posts[0]->reactions_count;          // 15
4$posts[0]->reactions[0]->reactor;    // the User who reacted
5 
6$user->givenReactions()->with('reactable')->latest()->get();

Each Reaction has reactor() and reactable() MorphTo relations, and the type_key attribute: the registered key or the emoji.

#Filtering reactables

whereReactedBy() keeps the reactables a reactor reacted to, with any type or with one:

1Post::whereReactedBy($user)->latest()->paginate();
2Post::whereReactedBy($user, 'love')->count();

#Filtering reactions

The Reaction model has three scopes:

1use Pharaonic\Laravel\Reacts\Models\Reaction;
2 
3Reaction::query()->whereReactor($user)->count();
4Reaction::query()->whereReactable($post)->whereType('love')->count();
5Reaction::query()->whereType('🚀')->with('reactable')->get();

An unsaved model matches nothing.

#Counts on many reactables

For one reactable, reactionCounts() runs one grouped query. For a list, use ReactionView::forMany(), or a grouped query of your own:

1Reaction::query()
2    ->whereReactable($post)
3    ->groupBy('type_key')
4    ->selectRaw('type_key, count(*) as total')
5    ->pluck('total', 'type_key');

#Morph maps and ids

The table stores the morph type from getMorphClass(), so aliases from Relation::morphMap() are used, and keys as strings of up to 64 characters, so integer, UUID and ULID models share the table.

#Authorization and Policies

The package does not know who is signed in or who may react to what. Authorize the request in your application first, with a Gate or Policy, before calling react() or toggleReaction():

1Gate::define('react', function (User $user, Post $post) {
2    return ! $user->is_banned && $post->is_published;
3});

1Gate::authorize('react', $post);
2$request->user()->toggleReaction($post, $request->input('type'));

#Reaction policy

For rules that belong to every reaction, whatever the controller, bind a ReactionPolicy. It is asked after the type passed the catalog check, inside the write's transaction, and only when the call would add a reaction: removing one never asks it.

 1namespace App\Reactions;
 2 
 3use Illuminate\Database\Eloquent\Model;
 4use Pharaonic\Laravel\Reacts\Contracts\ReactionPolicy;
 5use Pharaonic\Laravel\Reacts\ValueObjects\ReactionContext;
 6use Pharaonic\Laravel\Reacts\ValueObjects\ReactionDefinition;
 7 
 8class NoSelfReactions implements ReactionPolicy
 9{
10    public function allows(Model $reactor, Model $reactable, ReactionDefinition $definition, ReactionContext $context): bool
11    {
12        return ! $reactor->is($reactable->author);
13    }
14}

1'policy' => \App\Reactions\NoSelfReactions::class,

The policy is resolved from the container, so its constructor can take dependencies. It receives:

When it returns false, the call throws ReactionNotAllowed and writes nothing; in single mode the previous reaction stays. The default policy, DefaultReactionPolicy, allows everything, including reacting to yourself.

#Events

The package dispatches an event for every change it makes, and none when nothing changed. Each one is dispatched right after the write's own transaction commits.

All three live in Pharaonic\Laravel\Reacts\Events.

 1namespace App\Listeners;
 2 
 3use Pharaonic\Laravel\Reacts\Events\ReactionCreated;
 4 
 5class NotifyAuthor
 6{
 7    public function handle(ReactionCreated $event): void
 8    {
 9        $event->reactable->author->notify(new \App\Notifications\NewReaction($event->reactor, $event->reaction->type_key));
10    }
11}

$previous usually holds one reaction: the row before the change, with exists false. The replacement updates that row in place, so $current has the same id. $previous holds several reactions when single mode replaces rows left from multiple mode; the others were deleted.

No event is dispatched when react() finds the reaction already there, when unreact() has nothing to remove, or when a model's deletion removes its reactions.

#Custom Reaction Model

Use your own model, for example to add relations or accessors. It must extend the package's Reaction:

 1namespace App\Models;
 2 
 3use Pharaonic\Laravel\Reacts\Models\Reaction as BaseReaction;
 4 
 5class Reaction extends BaseReaction
 6{
 7    public function isEmoji(): bool
 8    {
 9        return \Pharaonic\Laravel\Reacts\ValueObjects\ReactionDefinition::kindOf($this->type_key) === 'emoji';
10    }
11}

1'model' => \App\Models\Reaction::class,
2'table' => 'social_reactions',
3'connection' => 'mysql',

Every query, relation and returned reaction uses your class: reactionsOn(), reactions(), givenReactions(), events and the scopes.

#Table and connection

The base model takes its table from table and its connection from connection. A subclass that sets $table or $connection itself wins over both, and the migration creates the table with that name, on that connection.

#Deletes and Soft Deletes

When a model with CanReact is deleted, the reactions it gave are deleted. When a model with HasReactions is deleted, the reactions it received are deleted. A model with both traits loses both.

A force delete always removes them while cleanup_on_delete is on. Cleanup runs without the reaction policy and dispatches no ReactionRemoved.

#Mass deletes

Query deletes such as Post::where('draft', true)->delete() do not fire model events, so they leave the reactions behind. Delete them with the same query on the reactions table:

 1use Pharaonic\Laravel\Reacts\Models\Reaction;
 2 
 3$ids = Post::where('draft', true)->pluck('id');
 4 
 5Reaction::query()
 6    ->where('reactable_type', (new Post)->getMorphClass())
 7    ->whereIn('reactable_id', $ids->map(function ($id) {
 8        return (string) $id;
 9    }))
10    ->delete();
11 
12Post::whereKey($ids)->delete();

#Integrity and Concurrency

The rules live in the reactions table, not only in PHP, so two requests at the same moment cannot break them.

The hashes are SHA-256 of the morph types, keys and type, so the indexes stay small on every database. A collision is theoretically possible but practically never happens.

#How a write runs

react() and toggleReaction() run in one transaction and lock the pair's existing rows first, so writes on the same pair wait for each other. In single mode a replacement updates the locked row in place rather than deleting and inserting, so the pair is never empty in between. Only on a pair with no reaction yet can two requests insert at once: the unique index refuses the second insert, and that write reads the pair again and decides anew, so a duplicate becomes a no-op and a different type in single mode becomes a replacement. Outside your own transaction, Laravel retries a deadlock or a busy SQLite database up to five times.

#Reconciling after a mode change

Switching a reactable to single mode leaves pairs with several rows until their next write. To reconcile everything at once, keep the newest row of each pair and mark it as the single-mode row, for example for posts:

 1use Illuminate\Support\Facades\DB;
 2use Pharaonic\Laravel\Reacts\Models\Reaction;
 3 
 4$type = (new Post)->getMorphClass();
 5 
 6DB::transaction(function () use ($type) {
 7    $newest = Reaction::query()->where('reactable_type', $type)
 8        ->groupBy('pair_hash')->selectRaw('max(id) as id')->pluck('id');
 9 
10    Reaction::query()->where('reactable_type', $type)->whereNotIn('id', $newest)->delete();
11    Reaction::query()->whereIn('id', $newest)->update(['single_slot_hash' => DB::raw('pair_hash')]);
12});

After a switch back to multiple mode nothing needs to change; to tidy up, set single_slot_hash to NULL for that reactable type.

#API Reference

#CanReact

For the model that reacts.

#HasReactions

For the model that receives reactions.

#Reaction model

Pharaonic\Laravel\Reacts\Models\Reaction

#ReactionView

Pharaonic\Laravel\Reacts\Support\ReactionView and ReactionViewBatch

#Contracts

#Exceptions

All package exceptions live in Pharaonic\Laravel\Reacts\Exceptions.

#Examples

#1. Post reactions, one per user

Posts keep one reaction per user, while chat messages keep the default multiple mode and accept any emoji.

 1namespace App\Models;
 2 
 3use Illuminate\Database\Eloquent\Model;
 4use Pharaonic\Laravel\Reacts\Concerns\HasReactions;
 5use Pharaonic\Laravel\Reacts\Contracts\ResolvesReactionGroup;
 6use Pharaonic\Laravel\Reacts\Contracts\ResolvesReactionMode;
 7 
 8class Post extends Model implements ResolvesReactionGroup, ResolvesReactionMode
 9{
10    use HasReactions;
11 
12    public function reactionGroup(): string
13    {
14        return 'posts';
15    }
16 
17    public function reactionMode(): string
18    {
19        return 'single';
20    }
21}

 1namespace App\Models;
 2 
 3use Illuminate\Database\Eloquent\Model;
 4use Pharaonic\Laravel\Reacts\Concerns\HasReactions;
 5use Pharaonic\Laravel\Reacts\Contracts\ResolvesReactionGroup;
 6 
 7class ChatMessage extends Model implements ResolvesReactionGroup
 8{
 9    use HasReactions;
10 
11    public function reactionGroup(): string
12    {
13        return 'chat';
14    }
15}

1$user->react($post, 'like');          // true
2$user->react($post, 'love');          // true: like replaced
3$user->react($message, 'fire');       // true
4$user->react($message, '🚀');         // true: free-form emoji, alongside fire

#2. A custom reaction with an icon

1'definitions' => [
2    // ...
3    'party_cat' => ['label' => 'Party Cat', 'icon' => '/images/reactions/party-cat.webp'],
4],
5 
6'groups' => [
7    // ...
8    'chat' => ['types' => ['love', 'laugh', 'fire', 'party_cat'], 'free_form' => true],
9],

1$user->react($message, 'party_cat');
2ReactionView::for($message)->toArray()['choices'][3]['icon']; // "/images/reactions/party-cat.webp"

#3. "Who reacted with what"

1$reactions = $post->reactions()->with('reactor')->latest()->limit(20)->get();
2 
3foreach ($reactions as $reaction) {
4    echo $reaction->reactor->name.' '.$reaction->type_key;
5}

#4. The posts a user loved

1$loved = Post::whereReactedBy($user, 'love')->latest()->paginate(15);

#5. Notify the author of a new reaction

1protected $listen = [
2    \Pharaonic\Laravel\Reacts\Events\ReactionCreated::class => [\App\Listeners\NotifyAuthor::class],
3    \Pharaonic\Laravel\Reacts\Events\ReactionReplaced::class => [\App\Listeners\NotifyAuthor::class],
4];

#Troubleshooting

#"The reaction type [x] is not selectable in the [default] group"

The reactable's group does not offer that type. Add the key to the group's types in config/pharaonic/reacts.php, or return the right group from reactionGroup(). A model without ResolvesReactionGroup uses default_group.

#"does not allow free-form emoji"

The group has no 'free_form' => true, and none of the groups it extends sets it. Turn it on for the group that should accept any emoji.

#An emoji is refused although it looks like one

A free-form reaction must be exactly one emoji: no text, spaces or second emoji. Check for a trailing space from a form field. If every emoji is refused with InvalidReactionConfiguration, PHP's PCRE is older than 10.40; check PCRE_VERSION and update PHP.

#Two rows for the same post in single mode

The post was in multiple mode when they were stored. Reads never rewrite rows; the next react() keeps one, or reconcile all of them as Integrity and Concurrency shows.

#Reactions stay after deleting models

The models were deleted with a query (Post::where(...)->delete()), which fires no model events, or cleanup_on_delete is off, or the model was only soft deleted. See Deletes and Soft Deletes.

#Counts merge different emoji on MySQL

The migration gives type_key a binary collation (utf8mb4_bin) on MySQL and MariaDB, because the default collations treat many emoji as equal. A table created another way needs that collation too.

#"The [reactions] table already exists"

Another package or migration already created a reactions table. Set pharaonic.reacts.table to another name before migrating.