easia/app/Models/ProjectBudget.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class ProjectBudget extends Model
{
    use HasFactory;
    use SoftDeletes;

    protected $fillable = [
        'resource_id',
        'hours',
        'company_activity_id',
        'company_rate_id',
        'cost',
        'revenue',
        'margin'
    ];

    public function resource()
    {
        return $this->belongsTo(\App\Models\Resource::class);
    }

    public function company_activity()
    {
        return $this->belongsTo(\App\Models\CompanyActivity::class);
    }

    public function company_rate()
    {
        return $this->belongsTo(\App\Models\CompanyRate::class);
    }

}