Codeigniter Select JSON, Insert JSON - json

Question

I have very simple users database: user_id, user_name, user_email
My model this:
class Users extends CI_Model {
private $table;
private $table_fields;
private $table_fields_join;
function __construct() {
parent::__construct();
$this->table = 'users';
$this->table_fields = array(
$this->table.'.user_id',
$this->table.'.user_name',
$this->table.'.user_email'
);
$this->table_fields_join = array();
}
function select(){
$this->db->select(implode(', ', array_merge($this->table_fields, $this->table_fields_join)));
$this->db->from($this->table);
$query = $this->db->get();
if($query->num_rows() > 0){
return $query->result();
} else {
return false;
}
}
function insert($data) {
$data = array(
'user_name' => $data['user_name'],
'user_email' => $data['user_email']
);
$this->db->insert($this->table, $data);
}
My controller this:
class Users extends CI_Controller {
function __construct(){
parent::__construct();
$this->load->model('users');
}
public function select(){
$data['query'] = $this->users->select();
$data = json_encode($data['query']);
echo $data;
}
public function insert($json){
$data = json_decode($json);
$this->users->insert($data);
}
}
And this is my routing.php:
$route['default_controller'] = 'Welcome';
$route['users'] = 'users/select';
$route['users/insert/:(any)'] = 'users/insert';
I would like that 127.0.0.1/users/select give json.
Example: [{"user_name":"user1","user_email":"user#user.de"}]
This JSON insert my table: 127.0.0.1/users/insert/[{"user_name":"user1","user_email":"user#user.de"}]
But my code is not working. :-(

Answer 1

You want to return json object in response, so it's required to set json type in response header. As given here
public function select(){
$data['query'] = $this->users->select();
$this->output
->set_content_type('application/json')
->set_output(json_encode($data['query']));
}
It is required to encode part as below for insert part. so you can use this generated url to call your insert.
site_url('usres/insert/'.urlencode('[{"user_name":"user1","user_email":"user#user.de"}]'));
your insert route should be as
$route['users/insert/:(any)'] = 'users/insert/$1';
your insert method should be updated as
public function insert($json){
$json = urldecode($json);
$data = json_decode($json);
$this->users->insert($data);
}
}