erpsaas/app/Models/Accounting/BudgetItem.php

<?php

namespace App\Models\Accounting;

use App\Concerns\Blamable;
use App\Concerns\CompanyOwned;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class BudgetItem extends Model
{
    use Blamable;
    use CompanyOwned;
    use HasFactory;

    protected $fillable = [
        'company_id',
        'budget_id',
        'account_id',
        'created_by',
        'updated_by',
    ];

    protected $appends = ['allocations_by_period'];

    public function getAllocationsByPeriodAttribute(): array
    {
        return $this->allocations->pluck('amount', 'period')->toArray();
    }

    public function budget(): BelongsTo
    {
        return $this->belongsTo(Budget::class);
    }

    public function account(): BelongsTo
    {
        return $this->belongsTo(Account::class);
    }

    public function allocations(): HasMany
    {
        return $this->hasMany(BudgetAllocation::class);
    }
}