FieldAccessImplementation.php

<?php
 
namespace Bitrix\Im\V2\Common;
 
trait FieldAccessImplementation
{
    public function offsetExists($offset): bool
    {
        return isset(static::mirrorDataEntityFields()[$offset]);
    }
 
    public function offsetGet($offset)
    {
        if ($field = static::mirrorDataEntityFields()[$offset])
        {
            if (isset($field['alias']))
            {
                $field = static::mirrorDataEntityFields()[$field['alias']];
            }
            if (
                ($getter = $field['get'])
                && is_string($getter)
                && is_callable([$this, $getter])
            )
            {
                return $this->$getter();
            }
 
            return $this->{$field['field']};
        }
 
        return null;
    }
 
    public function offsetSet($offset, $value): void
    {
        if ($field = static::mirrorDataEntityFields()[$offset])
        {
            if (isset($field['alias']))
            {
                $field = static::mirrorDataEntityFields()[$field['alias']];
            }
            if (!isset($field['primary']))
            {
                if (
                    ($setter = $field['set'])
                    && is_string($setter)
                    && is_callable([$this, $setter])
                )
                {
                    $this->$setter($value);
                }
                else
                {
                    $this->{$field['field']} = $value;
                }
            }
        }
    }
 
    public function offsetUnset($offset): void
    {
        if ($field = static::mirrorDataEntityFields()[$offset])
        {
            if (isset($field['alias']))
            {
                $field = static::mirrorDataEntityFields()[$field['alias']];
            }
            if (!isset($field['primary']))
            {
                $this->{$field['field']} = null;
            }
        }
    }
}