How can I create a CRUD with Codeigniter using SQLite?

问题

I'm starting a new project where I want to use Codeigniter with SQLite. I searched information about this and I managed to conect and get data from my SQLite database but I have no idea of how can I create a CRUD for a table with this, I'm trying to do it the same way I did in the past with MySQL buy it is not working.

Here is what I did:

config/database.php

$db['default'] = array(
    'dsn'   => '',
    'hostname' => '',
    'username' => '',
    'password' => '',
    'database' => APPPATH.'/database/Pasapalabra.sqlite',
    'dbdriver' => 'sqlite3',
    '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
);

config/autoload.php

$autoload['libraries'] = array('database');

models/modelo_prueba.php

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

class modelo_prueba extends CI_Model  {

    public function getTestData() {
        return $this->db->get('preguntas')->result();
    }
}

?>

controllers/Welcome.php

public function __construct() {
    parent::__construct();
    $this->load->library("grocery_CRUD");
}

public function prueba() {

        $this->load->model('modelo_prueba');
        $dataSet = $this->modelo_prueba->getTestData();
        $this->load->view('data_view', [
            'dataSet' => $dataSet
        ]);

    }

views/data_view.php

<h4>Lets test the data</h4>
<?php
    if($dataSet) {
        foreach($dataSet as $dataItem) {
            echo $dataItem->definicion . "<hr>";
        }
    }
?>
<h5>done!</h5>

This worked for me, it shows correctly all data in 'preguntas' database, but now I'm trying to create a CRUD just like I usually do with MySQL and it's working, it shows a database error.

The only thing that I have changed from the code of above is Welcome.php

public function prueba() {

    $crud = new Grocery_CRUD();
    $crud->set_table('preguntas');

    $output = $crud->render();
    $this->load->view("example.php", $output);

}

The error that is shown in the screen is the following:

A PHP Error was encountered

Severity: Warning

Message: SQLite3::query(): Unable to prepare statement: 1, near "SHOW": syntax error

Filename: sqlite3/sqlite3_driver.php

Line Number: 129

Backtrace:

File: C:\xampp\htdocs\Pasapalabra_Isidro\application\models\Grocery_crud_model.php
Line: 436
Function: query

File: C:\xampp\htdocs\Pasapalabra_Isidro\application\libraries\Grocery_CRUD.php
Line: 48
Function: get_field_types_basic_table

File: C:\xampp\htdocs\Pasapalabra_Isidro\application\libraries\Grocery_CRUD.php
Line: 1567
Function: get_field_types

File: C:\xampp\htdocs\Pasapalabra_Isidro\application\libraries\Grocery_CRUD.php
Line: 4507
Function: showList

File: C:\xampp\htdocs\Pasapalabra_Isidro\application\controllers\Welcome.php
Line: 38
Function: render

File: C:\xampp\htdocs\Pasapalabra_Isidro\index.php
Line: 315
Function: require_once


A Database Error Occurred

Error Number: 0

not an error

SHOW COLUMNS FROM `preguntas`

Filename: C:/xampp/htdocs/Pasapalabra_Isidro/system/database/DB_driver.php

Line Number: 691

Anyone knows what is happening? There isn't any error with the database connection because the previous code worked, but it's like Grocery CRUD can't create a CRUD of an SQLite.

I'm working with Codeigniter 3.1.4 and I created the SQLite database with SQLite Manager (Firefox) 0.8.3.1

Thank you for your answers.

回答1:

Hi I have found solution from grocery crud form post with works with sqlite3 you have to modify Grocery curd library first copy sqlite3 model from this link

http://www.grocerycrud.com/forums/topic/651-suport-for-sqlite3/
this model extending grocery_crud_model, just include grocery_crud_model in your sqlite model.
in grocery crud library find grocery_crud_model, where it is loading this model just replace with grocery_crud_sqlite3, and you are done. it will work perfect.

just remember you have to modify these lines manually on each update in future.

来源：https://stackoverflow.com/questions/43415896/how-can-i-create-a-crud-with-codeigniter-using-sqlite

标签

php

database

sqlite

codeigniter

grocery-crud