Add data to the database using codeigniter - php

Question

I am currently trying to add data to the database using codeigniter. I have already set up a registration page using the active method and attempted to use the same method for the add news form but was unsuccessful.
When I click submit it is saying page cannot be found and the url shows the controller function name. This is the same when i purposely leave any fields blank. I have checked my database and no records have been added and no php log errors.
Here is my snippets of code:
View:
<?php echo form_open('add/add_article'); ?>
<?php echo form_input('title', set_value('title', 'Title')); ?><br />
<?php echo form_textarea('content', set_value('content', 'Content')); ?><br />
<?php echo form_input('author', set_value('author', 'Author')); ?>
<?php echo form_submit('submit', 'Add Article'); ?>
<?php echo validation_errors('<p class="error">' );?>
<?php echo form_close(); ?>
Controller:
class Add extends CI_Controller {
public function __construct() {
parent::__construct();
}
public function index() {
$this->load->view('admin/add');
}
public function add_article() {
$this->load->library('form_validation');
$this->form_validation->set_rules('title', 'Title', 'trim|required');
$this->form_validation->set_rules('content', 'Content', 'trim|required');
$this->form_validation->set_rules('author', 'Author', 'trim|required');
if($this->form_validation->run() == FALSE) {
$this->index();
}else{
$this->load->model('news_model');
if($query = $this->news_model->addArticle()) {
$this->load->view('news');
}else {
$this->load->view('news');
}
}
}
}
Model:
public function __construct() {
parent::__construct();
}
function addArticle() {
$data =array(
'title' => $this->input->post('title'),
'content' => $this->input->post('content'),
'author' => $this->input->post('author'),
'username' => $this->input->post('username'));
$insert = $this->db->insert('news', $data);
return $insert;
}
}

Answer 1

If it's the server that's throwing the page not found it's almost certainly a URL issue as opposed to a CI/PHP issue.
Is your base url defined properly in the config file? Is your .htaccess configured properly (an old configuration could be routing /add requests away from CI)?
Try adding the following action to the Add controller, and navigating to it directly at http://[base]/add/thetest
public function thetest() {
echo 'Controller accessed';
die;
}
If it still says page not found it's not your code, it's your config (either server config or CI).

Answer 2

Instead of insert use update in your model like:
$insert = $this->db->update('news', $data);
return $insert;
And I think that this part of your code in controller is wrong too (wrong if statement and no data send to model):
if($query = $this->news_model->addArticle()) {
$this->load->view('news');
}else {
$this->load->view('news');
}
try this:
$data =array(
'title' => $this->input->post('title'),
'content' => $this->input->post('content'),
'author' => $this->input->post('author'),
'username' => $this->input->post('username')
);
$query = $this->news_model->addArticle($data);
if($query)
{
// query ok
$this->load->view('news');
}
else {
// no query
$this->load->view('news');
}