hedronium\Jables\Checker::uniqueError PHP Method

    public function uniqueError()
    {
        foreach ($this->datas as $name => $table) {
            $name = $this->getName($name);
            if (isset($table->unique)) {
                foreach ($table->unique as $compound) {
                    foreach ($compound as $field) {
                        if (!isset($table->fields->{$field})) {
                            return "The {$field} field is missing in table {$name}. (unique constraints)";
                        }
                    }
                }
            }
        }
    }