[eluser]mandril[/eluser]
Hi there!
Im porting an application, its the old style php embedded in HTML untidy programming u.u
What i need to do is check if a user exists on the database with his ID typed on the textbox, using the onblur javascript event.
THE OLD CODE I WANT TO PORT...
The input: cedula or ci = ID , sry for spanish names
Code:
< input type="text" id="txtCedula" name="txtCedula" class="jsrequired" o n b l u r = " g e t R e a f i l i a c i o n ( '../modulos/scriptReAfiliacion.php?ci= ' +this.value ) " / >
Ok it calls a javascript function with the URL of the *logic* that gets the ci value and check in DB if the user exists or not.. and then it shows the result on a div.
Javascript file
Code:
function getXMLHTTP() {
var xmlhttp=false;
try{
xmlhttp=new XMLHttpRequest();
}
catch(e) {
try{
xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e){
try{
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e1){
xmlhttp=false;
}
}
}
return xmlhttp;
}
function getReafiliacion(strURL)
{
var req = getXMLHTTP();
if (req)
{
req.onreadystatechange = function()
{
if (req.readyState == 4)
{
if (req.status == 200)
{
// the div where the info is shown
document.getElementById('lblAdvertencia')[removed] = req.responseText;
}
else
{
alert("Hubo un problema con ajax y el objeto XMLHTTP:\n" + req.statusText);
}
}
}
req.open("GET", strURL, true);
req.send(null);
}
}
And this is the PHP file with the Logic
Code:
<?php
require_once("Programa.php");
$bd = new Mysql5();
$bd->Conectarse();
$ci = $_GET['ci']; //here it gets the ID value from the javascript
//it query for user existence
$resultado = $bd->ConsultaSQL("SELECT id FROM socio WHERE cedula = '".$ci."' AND estadoBaja = -1");
$row = mysql_fetch_array ($resultado);
//if it doesnt exists i show an error message... that javascript puts in the div lblAdvertencia
if($row[0] != NULL){
echo "<b><font color='red'>El socio de la cooperativa esta dado de baja!</font>[ Reafiliar ]</a></b>";
}
?>
Ok so in CodeIgniter what I've done is a model to handle the bd operations and a controller to connect the view and the model.
My controller:
note that socio is like : user in english
Code:
class socio extends Controller
{
function __construct ()
{
parent::Controller();
$this->load->model('socio_model');
}
function index(){}
//nuevo is link new.. this method shows the form of user registration were i have to check if the ID is already taken or not
function nuevo()
{
$config['title'] = 'CAOMA 2.0 \ Socio Nuevo';
$config['header'] = '[removed][removed]';
$this->load->view('socio_ingreso_form',$config);
}
//this is the method that connects me with the model that gets the data from DB
//this medoth recievs the ID($ci) and a optional parameter because im going to use it for non-ajax also :P
function reafiliar($ci,$ajax = FALSE)
{
if ($ajax == TRUE)
{
//ok if its called from ajax go to model and get the info
$config['reafiliar'] = $this->socio_model->getReafiliacion($ci);
}else{
$this->load->view('socio_reafiliar_form');
}
}
The model
Code:
class socio_model extends Model
{
function __construct()
{
parent::Model();
}
//this method does the logic of checking in db if the user exists..
//if it does it returns " " if not it returns the message to show.
function getReafiliacion($ci)
{
$this->db->where('cedula',$ci);
$this->db->where('estadoBaja',-1);
$this->db->select('id');
$query = $this->db->get('socio');
if(!$query->num_rows() == 0)
{
return "<b><font color='red'>El socio de la cooperativa esta dado de baja!</font> [ Reafiliar ]</b>";
}
return "";
}
}
Ok this is my code but i dont know how to relate with javascript in the user registration form (socio_ingreso_form) . In the old one i send data using Post.
I cannot call my : function reafiliar($ci,$ajax = FALSE) and send the variable from the input onblur event , or can I ? :S
Im newbie using javascript and stuck here with this.. need a solution please help me
Thnx a lot =)
