Hi list:
I'm a young developer that need a little help with scriptaculous
"Autocompleter". I work with PRADO framework (http://www.xisc.com) and PHP as a
script language. Now this is a little function in JavaScript for make a AJAX
call and show the results without reload the entire page. See below:
1 function makeRequest(url,element) {
2 var http_request = false;
3 if (window.XMLHttpRequest) { // Mozilla, Safari,...
4 http_request = new XMLHttpRequest();
5 if (http_request.overrideMimeType) {
6 http_request.overrideMimeType('text/xml');
7 }
8 } else if (window.ActiveXObject) { // IE
9 try {
10 http_request = new
ActiveXObject("Msxml2.XMLHTTP");
11 } catch (e) {
12 try {
13 http_request = new
ActiveXObject("Microsoft.XMLHTTP");
14 } catch (e) {}
15 }
16 }
17
18 if (!http_request) {
19 alert('Información: No se ha podido crear la instancia
del objeto XMLHTTP');
20 return false;
21 }
22 http_request.onreadystatechange = function() { searchResult();
};
23 http_request.open('GET',"search_ajax.php?q="+element, true);
24 http_request.send(null);
25 }
26
27 function searchResult() {
28 if (http_request.readyState == 4) {
29 if (http_request.status == 200) {
30 alert(http_request.responseText);
31 } else {
32 alert('Han ocurrido problemas con la
petición.');
33 }
34 }
35 }
In search_ajax.php file I find the element in the database:
<?php
$query = isset ( $_POST['qword'] ) ? trim ( rtrim ( $_POST['qword'] ) )
: null;
if ( $query != null ){
$db->Execute(" SELECT * FROM table WHERE field LIKE '%". $query
."%' ") or die($db->ErrorMsg());
$elements = array();
while ( $record = $db->fetchRow() ){
$elements[] = $record;
}
return $elements;
} else {
return 0;
}
?>
Now in line 30 is suppose that the result must be return to original page and
assign this to DIV element. See the Autocompleter doc's I found this:
<input type="text" id="autocomplete"/>
<div id="autocomplete_choices" class="autocomplete">
</div>
</div>
So ... in "autocomplete_choices" element I need to show the result of the
query, mean I need write the $elements content in this DIV. How can I do this?
Any idea?
Regards,
--
ReynierPM
4to. Ing. Informática
Linux User: #310201
El programador superhéroe aprende de compartir sus conocimientos. Es el
referente de sus compañeros. Todo el mundo va a preguntarle y él, secretamente,
lo fomenta porque es así como adquiere su legendaria sabiduría: escuchando
ayudando a los demás...
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