alrahma_sunday_school_api/app/Models/InventoryMovement.php

<?php

namespace App\Models;

class InventoryMovement extends BaseModel
{
    protected $table = 'inventory_movements';

    // ✅ legacy: useTimestamps = true (created_at/updated_at)
    public $timestamps = true;

    protected $fillable = ['item_id', 'qty_change', 'movement_type', 'reason', 'note', 'semester', 'school_year', 'performed_by', 'teacher_id', 'student_id', 'class_section_id', 'created_at', 'updated_at'];

    protected $casts = [
        'item_id' => 'integer',
        'qty_change' => 'integer',
        'performed_by' => 'integer',
        'teacher_id' => 'integer',
        'student_id' => 'integer',
        'class_section_id' => 'integer',
        'voided_by' => 'integer',
        'corrects_movement_id' => 'integer',
        'source_id' => 'integer',
        'voided_at' => 'datetime',
    ];

    /* Scopes */
    public function scopeNotVoided($query)
    {
        return $query->whereNull('voided_at');
    }

    public function scopeVoided($query)
    {
        return $query->whereNotNull('voided_at');
    }

    /* Optional relationships */
    public function item()
    {
        return $this->belongsTo(InventoryItem::class, 'item_id');
    }

    public function performer()
    {
        return $this->belongsTo(User::class, 'performed_by');
    }

    public function teacher()
    {
        return $this->belongsTo(User::class, 'teacher_id');
    }

    public function student()
    {
        return $this->belongsTo(Student::class, 'student_id');
    }

    public function classSection()
    {
        return $this->belongsTo(ClassSection::class, 'class_section_id');
    }

    public function voidedBy()
    {
        return $this->belongsTo(User::class, 'voided_by');
    }

    public function correctsMovement()
    {
        return $this->belongsTo(self::class, 'corrects_movement_id');
    }

    public function corrections()
    {
        return $this->hasMany(self::class, 'corrects_movement_id');
    }
}