Question

我已经在CodeIgniter本地工作了一个应用程序，现在我想尝试托管：hostinger。如果你想看到，check这个。现在问题是当我执行库的安装时，我从下面的代码底部得到错误：

public function get_admin_role_id()
{
    $result = intval($this->db->get_where('ea_roles', array('slug' => DB_SLUG_ADMIN))->row()->id);
    print_r($result);
    return $result;
}

遇到PHP错误

严重性：注意

消息：尝试获取非对象的属性

文件名：models / admins_model.php

行号：372

现在，此代码应返回admin的id角色，该角色设置为默认为1。现在安装也参与创建表的结构并登录phpMyAdmin似乎数据库仍然是空的，也许这可能是导致问题的原因？有人可以帮我理解发生了什么吗？

Complete admin model

Answer 1

这样使用不是一个好习惯。我们无法确保查询总是会产生依赖于数据库表的结果。如果$this->db->get_where未返回任何结果，则无法调用row()方法并访问字段id，因此会引发错误。

总是喜欢这个

public function get_admin_role_id()
{
   $result = $this->db->get_where('ea_roles', array('slug' => DB_SLUG_ADMIN));
   if($result->num_rows()==0){
     echo "Result not found!";
   } 
   else{
    $row = $result->row();
    $id = intval($row->id);
  }
}

请确保此查询有一些结果。

select * from ea_roles where slug='your_slug';

Answer 2

尝试以下方法：

public function get_admin_role_id() {
    return intval($this->db->get_where('ea_roles', array('slug' => DB_SLUG_ADMIN))->row()->id);
}

如果这没有返回任何内容，那么您在数据库中没有这样的记录

确保正确设置了所有数据库。在phpmyadmin

中执行以下SQL查询

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";


/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;

--
-- Database: `easyappointments`
--

--
-- Dumping data for table `ea_settings`
--

INSERT INTO `ea_settings` (`id`, `name`, `value`) VALUES
(1, 'company_working_plan', '{"monday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"tuesday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"wednesday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"thursday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"friday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"saturday":null,"sunday":null}'),
(2, 'book_advance_timeout', '30'),
(3, 'company_name', 'ABC Company'),
(4, 'company_email', 'info@abc-company.ea'),
(5, 'company_link', 'http://www.abc-company.ea'),
(6, 'google_analytics_code', '');

--
-- Dumping data for table `ea_roles`
--

INSERT INTO `ea_roles` (`id`, `name`, `slug`, `is_admin`, `appointments`, `customers`, `services`, `users`, `system_settings`, `user_settings`) VALUES
(1, 'Administrator', 'admin', 1, 15, 15, 15, 15, 15, 15),
(2, 'Provider', 'provider', 0, 15, 15, 0, 0, 0, 15),
(3, 'Customer', 'customer', 0, 0, 0, 0, 0, 0, 0),
(4, 'Secretary', 'secretary', 0, 15, 15, 0, 0, 0, 15);

--
-- Dumping data for table `ea_users`
--

INSERT INTO `ea_users` (`id`, `first_name`, `last_name`, `email`, `mobile_number`, `phone_number`, `address`, `city`, `state`, `zip_code`, `notes`, `id_roles`) VALUES
(1, 'John', 'Smith', 'info@abc-company.ea', '0123 4567890', '0123 4567891', 'Tst-Address 12', 'Tst-City', 'Tst-State', '012345', 'Test administrator record for this installation. ', 1),
(2, 'George ', 'Clayton', 'g.clayton@abc-company.ea', '0123 456 7890', '0123 456 7891', 'Tst-Address 12', 'Tst-City', 'Tst-State', '012345', 'This is one of the test providers. He will handle the quick services.', 2),
(3, 'Christina', 'Nickolson', 'c.nickolson@abc-company.ea', '0123 4567890', '0123 4567891', 'Tst-Address 12', 'Tst-City', 'Tst-State', '012345', 'This provider will handle the long services.', 2),
(4, 'Nicky', 'Rowland', 'n.rowland@abc-company.ea', '0123 4567890', '0123 4567891', 'Tst-Address 12', 'Tst-City', 'Tst-State', '012345', 'This is the only secretary of the app. She will handle the data of Christina.', 4),
(5, 'John', 'Doe', 'john.doe@abc-company.ea', NULL, '0123 4567890', 'Tst-Address 12', 'Tst-City', NULL, '012345', 'This is a test customer record.', 3);

--
-- Dumping data for table `ea_user_settings`
--

INSERT INTO `ea_user_settings` (`id_users`, `username`, `password`, `salt`, `working_plan`, `notifications`, `google_sync`, `google_token`, `google_calendar`, `sync_past_days`, `sync_future_days`) VALUES
(1, 'administrator', 'fa7fc34500cbed7c3546f8b223f10797f24ecc9ccbf0c2251c21ab965ebf19bf', 'e0a9e47fbf57babcf536e98bed783a9404b95b671cdcf9e391f68989fa3ac14f', NULL, 1, 0, NULL, NULL, 5, 5),
(2, 'g.clayton', 'a86f0c41be938c36eaedb3c4869c445fe8b7192188110f57bf86b55ac2252f05', '9b56eaa06cb0cc1c3bdce616291da4f53c2cc5d3449591bacb28099346333f05', '{"monday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"tuesday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"wednesday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"thursday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"friday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"saturday":null,"sunday":null}', 1, 0, NULL, NULL, 5, 5),
(3, 'c.nickolson', '7dcd5ed6a1cc42de678227aa8d528069761b218d181ff7ef446a49622c384782', '807349d6bacc35650205c66d664d4d414d150dec7f17dbba360752224bab73f4', '{"monday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"tuesday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"wednesday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"thursday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"friday":{"start":"09:00","end":"18:00","breaks":[{"start":"14:30","end":"15:00"}]},"saturday":null,"sunday":null}', 1, 0, NULL, NULL, 5, 5),
(4, 'n.rowland', '8cd1cc276a72f88e6d27372aecde8d87903a91fa33a6d2aceafbf2d110e4c9c2', '55b3a83cea1e3a5c4945fcb12a7621519705b3d09c4fa3408d912a832c8410a1', NULL, 1, 0, NULL, NULL, 5, 5);

--
-- Dumping data for table `ea_secretaries_providers`
--

INSERT INTO `ea_secretaries_providers` (`id_users_secretary`, `id_users_provider`) VALUES
(4, 3);


--
-- Dumping data for table `ea_service_categories`
--

INSERT INTO `ea_service_categories` (`id`, `name`, `description`) VALUES
(1, 'Quick Services', 'A collection of services that have small duration. '),
(2, 'Long Services', 'A collection of services that require more time. ');

--
-- Dumping data for table `ea_services`
--

INSERT INTO `ea_services` (`id`, `name`, `duration`, `price`, `currency`, `description`, `id_service_categories`) VALUES
(1, 'Best Quick Service ', 30, 50.00, '€', 'This is the best service and it requires only 30 minutes of your time!', 1),
(2, 'Another Q. Service', 45, 60.00, '€', 'This will be the best choice for someone that wants a balance between time and money.', 1),
(3, 'Best Long Service', 180, 100.00, '€', 'This long service will examine all the aspects of your problem. Definitely the best solution!', 2),
(4, 'Ungrouped Srv.', 45, 0.00, '', 'This category is not like the rest. It can''t be grouped. ', NULL);

--
-- Dumping data for table `ea_services_providers`
--

INSERT INTO `ea_services_providers` (`id_users`, `id_services`) VALUES
(2, 1),
(2, 2),
(3, 3),
(2, 4),
(3, 4);

/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

Answer 3

希望您尝试从 ea_roles 表中访问 id 列。如果您只想访问ID，则无需使用所有（*）值，而是使用 id 。然后像这样更新函数：

public function get_admin_role_id()
{
    $id = 0;
    $result = $this->db->select('id')->get_where('ea_roles', array('slug' => DB_SLUG_ADMIN));
    if ($result->num_rows() > 0) {
        $id = intval($result->row()->id);
    }
    return $id;
}

CodeIgniter return尝试获取非对象的属性

3 个答案: