How to insert form value in ci? - php

Question

controller: Test.php
<?php
class Test extends CI_Controller {
public function index()
{
$this->load->helper(array('form', 'url'));
$this->load->model('Users_model');
$this->Users_model->insert_user();
$this->load->view('home');
}
}
?>
Model: User_model.php
<?php
class Users_model extends CI_Model
{
public function insert_user()
{
$data = array(
'name' => $this->input->post('name'),
'email' => $this->input->post('email'),
'message' => $this->input->post('message')
);
return $this->db->insert('user', $data);
}
}
?>
view: home.php
<form method="post">
<label for="name">your Name</label>
<input class="form-control" id="name" type="text" placeholder="Name" name="name" />
<label for="email">Your email</label>
<input class="form-control" id="email" type="text" placeholder="Email" name="email" />
<label for="message">Your Message</label>
<textarea class="form-control" id="message" placeholder="Message" name="message"></textarea>
<button type="submit">send</button>
</form>
I am new in codeigniter here I want to insert form value into database but it showing some error i.e.
how can I fix this error ? please help.
Thank You

Answer 1

You got the errors because you call User_model->insert_user() before any data submitted in the form. You should check if there is any posted data then save to the database. Here is the example of your controller should be:
<?php
class Test extends CI_Controller {
public function index()
{
$this->load->helper(array('form', 'url'));
$this->load->model('Users_model');
// do checking right here
if (!empty($this->input->post('name'))) {
$this->Users_model->insert_user();
}
$this->load->view('home');
}
}

Answer 2

You forget to pass POST data in insert method of model in controller .
Contoller
<?php
class Test extends CI_Controller {
public function index()
{
$data = array(
'name' => $this->input->post('name'),
'email' => $this->input->post('email'),
'message' => $this->input->post('message')
);
$this->load->helper(array('form', 'url'));
$this->load->model('Users_model');
$this->Users_model->insert_user($data );
$this->load->view('home');
}
}
Model
<?php
class Users_model extends CI_Model
{
public function insert_user($data = [])
{
return $this->db->insert('user', $data);
}
}
?>

Answer 3

You extend CI_Model But did not call parent construct. Use this:
function __construct() {
// Call the Model constructor
parent :: __construct();
}
Hope this will work. Thanks.

Answer 4

In your "home.php" you haven't specify an action attribute. Due to this form value is not posting.
for example:- <form action="<?php echo base_url();?>YourfileName/DeclaredFunctionName" method="post">
and then try to fetch the value of your form in your controller.
In controller please execute this function insert_user() { print_r($_POST); exit(); }
If you are getting values in your browser, then remove exit() and execute your code. Otherwise, please share your error here.
Thanks