<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Migration_Add_pr_applicant extends CI_Migration
{
    public function up()
    {
        if (!$this->db->field_exists('applicant_is_creator', 'purchase_requests')) {
            $this->db->query("ALTER TABLE purchase_requests ADD applicant_is_creator TINYINT(1) NOT NULL DEFAULT 1 AFTER requested_by");
        }
        if (!$this->db->field_exists('applicant_name', 'purchase_requests')) {
            $this->db->query("ALTER TABLE purchase_requests ADD applicant_name VARCHAR(150) NULL AFTER applicant_is_creator");
        }
    }

    public function down()
    {
        if ($this->db->field_exists('applicant_name', 'purchase_requests')) {
            $this->db->query('ALTER TABLE purchase_requests DROP COLUMN applicant_name');
        }
        if ($this->db->field_exists('applicant_is_creator', 'purchase_requests')) {
            $this->db->query('ALTER TABLE purchase_requests DROP COLUMN applicant_is_creator');
        }
    }
}