construprogress/app/Livewire/PhaseList.php

<?php

namespace App\Livewire;

use Livewire\Component;
use App\Models\Project;
use App\Models\Phase;

class PhaseList extends Component
{
    public Project $project;
    public $phases;

    public function mount(Project $project)
    {
        $this->project = $project;
        $this->phases = $project->phases;
    }

    public function addPhase()
    {
        $this->project->phases()->create([
            'name' => 'Nueva fase',
            'order' => $this->phases->count() + 1,
            'color' => '#'.substr(md5(rand()), 0, 6)
        ]);
        $this->phases = $this->project->phases()->get();
        session()->flash('message', 'Fase agregada');
    }

    public function deletePhase($phaseId)
    {
        Phase::find($phaseId)->delete();
        $this->phases = $this->project->phases()->get();
    }

    public function render()
    {
        return view('livewire.phase-list');
    }
}