WithEdits Trait

WithEdits.php

<?php

namespace App\Http\Livewire\Traits;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Str;

trait WithEdits
{
    use WithAuthMessage;

    public $showModal = false;
    public Model $editing;

    public abstract function getModelName(): string;

    public abstract function emptyModel(): array;

    public function bootWithEdits(): void
    {
        $this->editing = $this->getModelName()::make($this->emptyModel());

        $this->listeners[] = 'showCreateModal';
        $this->listeners[] = 'showEditModal';
        $this->listeners[] = 'cancelEdit';
    }

    public function showCreateModal(array $params = []): bool
    {
        if (Gate::denies('create', $this->getModelName())) {
            return $this->denied();
        }

        $this->editing = $this->getModelName()::make([...$this->emptyModel(), ...$params]);

        if (method_exists($this, 'beforeCreate')) {
            $this->beforeCreate();
        }

        $this->showModal = true;

        return true;
    }

    public function showEditModal($modelId): bool
    {
        $model = $this->getModelName()::find($modelId);

        if (Gate::denies('update', $model)) {
            return $this->denied();
        }

        $this->editing = $model;

        if (method_exists($this, 'beforeEdit')) {
            $this->beforeEdit();
        }

        $this->showModal = true;
        return true;
    }

    public function cancelEdit(): void
    {
        $this->editing = $this->getModelName()::make($this->emptyModel());

        $this->showModal = false;
    }

    public function save(): bool
    {
        $isEditing = !!$this->editing->getKey();

        if ($isEditing && Gate::denies('update', $this->editing)) return $this->denied();
        if (!$isEditing && Gate::denies('create', $this->getModelName())) return $this->denied();

        $this->validate();
        $this->editing->save();
        $this->cancelEdit();
        $this->emit('refresh');
        $strModel = Str::of($this->getModelName())->afterLast("\\");

        $this->notify("$strModel saved successfully!");
        return true;
    }


}