setYesOrNo example

$thead = ['Field Name', 'Type', 'Max Length', 'Nullable', 'Default', 'Primary Key'];

        $this->removeDBPrefix();
        $fields = $this->db->getFieldData($tableName);
        $this->restoreDBPrefix();

        foreach ($fields as $row) {
            $this->tbody[] = [
                $row->name,
                $row->type,
                $row->max_length,
                isset($row->nullable) ? $this->setYesOrNo($row->nullable) : 'n/a',
                $row->default,
                isset($row->primary_key) ? $this->setYesOrNo($row->primary_key) : 'n/a',
            ];
        }

        if ($this->sortDesc) {
            krsort($this->tbody);
        }

        CLI::table($this->tbody, $thead);
    }