Lock columns/attributes from updates in Laravel

LockColumns.php

<?php

namespace App\Traits;

trait LockColumns
{
    /**
     * Cast locked_columns as a JSON column
     *
     * @return void
     */
    public function initializeLockColumns()
    {
        $this->casts['locked_columns'] = 'json';
    }

    /**
     * Set a given attribute on the model if column is not locked
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return mixed
     */
    public function setAttribute($key, $value)
    {
        if ($this->isLocked($key)) {
            return false;
        }

        return parent::setAttribute($key, $value);
    }

    /**
     * Check if column is locked
     *
     * @param string $column
     * @return boolean
     */
    public function isLocked(string $column)
    {
        return in_array($column, (array) $this->locked_columns);
    }

    /**
     * Lock a specific column
     *
     * @param string $column
     * @return boolean
     */
    public function lockColumn(string $column)
    {
        if ($this->isLocked($column)) {
            return false;
        }
        
        return $this->update([
            'locked_columns' => array_merge((array) $this->locked_columns, [$column])
        ]);
    }
    
    /**
     * Unlock a specific column
     *
     * @param string $column
     * @return boolean
     */
    public function unlockColumn(string $column)
    {
        if (! $this->isLocked($column)) {
            return false;
        }

        return $this->update([
            'locked_columns' => array_diff($this->locked_columns, [$column]),
        ]);
    }

    /**
     * Force update a value on a locked column
     *
     * @param string $column
     * @param mixed $value
     * @return boolean
     */
    public function overrideLock(string $column, $value)
    {
        $this->unlockColumn($column);
        $update = $this->update([$column => $value]);
        $this->lockColumn($column);

        return $update;
    }
}