Data not insert into codeigniter - php

Question

I will try to insert & also update data using session in Codeigniter, but data not inserted into the database even its print save successfully.
Here is my controller:
public function save($user_id)
{
$this->load->model('Users');
$code=$this->input->post('code');
$name=$this->input->post('name');
$address=$this->input->post('address');
$user_data= array(
'code' =>$code,
'name'=>$name,
'address'=>$address,
'active'=>1
);
if($this->Users->save($user_data,$user_id))
{
$this->session->set_flashdata('msg',"save sucesss");
}else {
$this->session->set_flashdata('msg',"not save");
}
redirect('home');
}
& this is my model:
public function save($data,$id)
{
if (id=='') {
// code...
$this->db->insert('user',$data);
return true;
}else
{
$this->db->where('id',$id)
->update('user',$data);
return true;
}
return false;
}
Data insert if I removed if in model!

Answer 1

You have the model always returning true no matter the outcome of the database operation. You should use the return value from insert() or update() so the "message" reports what actually happens.
Note that the argument to save has a default value. Now you can call the save URL without an argument and it will automatically do an insert.
public function save($user_id = NULL)
{
$this->load->model('users');
$user_data = array(
'code' => $this->input->post('code'),
'name' => $this->input->post('name'),
'address' => $this->input->post('address'),
'active' => 1
);
if($this->Users->save($user_data, $user_id))
{
$msg = "save sucesss";
}
else
{
$msg = "not save";
}
$this->session->set_flashdata('msg', $msg);
redirect('home');
}
public function save($data, $id)
{
if(empty($id))
{
// code...
// insert returns TRUE on success, FALSE on failure
return $this->db->insert('user', $data);
}
// update() accepts a third argument, a "where" array
// and returns TRUE on success, FALSE on failure
return $this->db->update('user', $data, array('id' => $id));
}
Now have an accurate report on the database operations.

Answer 2

the first check is data is coming in save controller or not if it's not getting the data then fix it. If coming then pass it in a model in the correct format and it will definitely be inserted in the database.
use following printing data
echo $data;
var_dump($data);
print($data);
print_r($data);

Answer 3

First thing is to rename your model calling eg:
$this->load->model('users');
and use this to call your method:
$this->users->save($user_data,$user_id)
your model should look like this then:
public function save($data, $id) {
if ($id) {
$this->db->where('id', $id)
->update('user', $data);
return true;
}
$this->db->insert('user', $data);
return true;
}
if you want to use your flashdata on the next request, use this:
$this->session->keep_flashdata('item');
$this->session->keep_flashdata(array('item1', 'item2', 'item3'));
because flashdata is only for the next request:
CodeIgniter supports “flashdata”, or session data that will only be available for the next request, and is then automatically cleared.