使用Codeigniter从sqlite数据库中获取数据时出错

Question

I connected to sqlite db and tried to fetch data from a table .

but its showing some error ,

Fatal error: Call to a member function lastErrorCode() on a non-object in D:\\xampp\\htdocs\\e-hadith\\system\\database\\drivers\\sqlite3\\sqlite3_driver.php on line 300 A PHP Error was encountered

Severity: Error

Message: Call to a member function lastErrorCode() on a non-object

Filename: sqlite3/sqlite3_driver.php

Line Number: 300

Backtrace:

below is my code

{
         $this->db->select("*");
         $q=$this->db->get("chapter");
         $r=$q->result();
         echo "<pre>";print_r($r);exit;


        $this->load->view('welcome_message');
    }

$db['default'] = array(
    'dsn'   => '',
    'hostname' => '',
    'username' => '',
    'password' => '',
    'database' => 'sqlite:'.APPPATH.'/Database/data.db',
    'dbdriver' => 'sqlite3',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => FALSE,
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
);

Can any one suggest me ?

Answer 1

It looks there is some error in database configuration.

Possible issues

1. Database Configuration Issue.

'database' => 'sqlite:'.APPPATH.'/Database/data.db' , this is wrong.

In CodeIgniter APPPATH refers to the application directory.

As per your screenshot your sqlite database is outside of the application directory.

1. Move the data.db file inside application/database .
2. Update the config 'database' => APPPATH.'/database/data.db'
3. Edit application/config/autoload.php and load database library.

Hope this will resolve your issue.

Answer 2

First thing try to check your php.ini and uncomment this

extension=php_pdo_sqlite.dll
extension=php_sqlite3.dll

and try this

// in the dsn put sqlite:your/path/to/Database
$db['default'] = array(
    'dsn'   => 'sqlite:application/Database/data.db',
    'hostname' => 'localhost',
    'username' => '',
    'password' => '',
    'database' => '',
    'dbdriver' => 'pdo',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => (ENVIRONMENT !== 'production'),
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
);