Php 在joomla中只重新加载一个模块?
我有一个模块,允许用户对图像进行评级。问题在于,当用户点击submit按钮进行评分时,它会重新加载整个页面,而不仅仅是模块。是否可以使其仅重新加载模块,或者至少在必须重新加载整个页面时,使其自动将用户带回模块所在页面的底部Php 在joomla中只重新加载一个模块?,php,ajax,joomla,Php,Ajax,Joomla,我有一个模块,允许用户对图像进行评级。问题在于,当用户点击submit按钮进行评分时,它会重新加载整个页面,而不仅仅是模块。是否可以使其仅重新加载模块,或者至少在必须重新加载整个页面时,使其自动将用户带回模块所在页面的底部 <?php // no direct access defined('_JEXEC') or die('Restricted access'); ?> <script type="text/javascript"> function getC
<?php // no direct access
defined('_JEXEC') or die('Restricted access'); ?>
<script type="text/javascript">
function getCheckedRadio(radio_group)
{
for (var i = 0; i < radio_group.length; i++)
{
var button = radio_group[i];
if (button.checked)
{
return button;
}
}
return undefined;
}
function trim(s){
var i;
var returnString = "";
for (i = 0; i < s.length; i++){
// Check that current character isn't whitespace.
var c = s.charAt(i);
if (c != " ") returnString += c;
}
return returnString;
}
//check is integer
function isInteger(s){
var i;
if(trim(s)==''){return false;}
for (i = 0; i < s.length; i++){
var c = s.charAt(i);
if (((c < "0") || (c > "9"))) return false;
}
return true;
}
function xmlhttpPost(strURL) {
var xmlHttpReqs = false;
if (window.XMLHttpRequest) {
xmlHttpReqs = new XMLHttpRequest();
}else if (window.ActiveXObject) {
xmlHttpReqs = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlHttpReqs.open('POST', strURL, true);
xmlHttpReqs.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xmlHttpReqs.onreadystatechange = function() {
if (xmlHttpReqs.readyState == 4) {
updatepage(xmlHttpReqs.responseText);
setTimeout("window.location = 'index.php'",2000);
}
}
document.getElementById("load").innerHTML ="Loadding...";
xmlHttpReqs.send(getquerystring());
}
function getquerystring() {
var form = document.forms['rateForm'];
var numbervote = form.numbervote.value ;
var name = form.name.value ;
var folder = form.folder.value ;
qstr = 'w='+escape(numbervote)+'&w1='+escape(name)+'&w2='+escape(folder);
return qstr;
}
function chck(){
xmlhttpPost("<?php echo JURI::root(); ?>modules/mod_image_ratting/saverate.php");
}
function updatepage(str){
document.getElementById("load").innerHTML = str;
document.getElementById("load").style.visibility = "visible";
}
function submitVote()
{
var form = document.rateForm;
var checkedButton = getCheckedRadio(document.rateForm.elements.numbervote);
if (checkedButton)
{
selectedvalue = checkedButton.value;
}
if(selectedvalue=='')
{
document.getElementById('numbervoteErr').style.display='block';
return false;
}else if(!isInteger(selectedvalue)){
document.getElementById('numbervoteErr').style.display='block';
return false;
}else if(selectedvalue > 10){
document.getElementById('numbervoteErr').style.display='block';
return false;
}
else
{
chck();
}
}
</script>
<form action="<?php echo JRoute::_( 'index.php' );?>" method="get" name="rateForm" id="rateForm" class="form-validate" >
<table style="width:100%;border:0px;">
<tr>
<td>
<?php if ($link) : ?>
<a href="<?php echo $link; ?>" target="_self">
<?php endif; ?>
<?php echo JHTML::_('image', $image->folder.'/resize/'.$image->name, $image->name); ?>
<?php if ($link) : ?>
</a>
<?php endif; ?>
</td>
</tr>
<?php
//if($image->rates > 0){
?>
<tr>
<td>
<?php JHTML::_( 'behavior.modal' ); ?>
<?php echo $image->rates;?> people liked this photo <a class="modal" href="index2.php?option=com_imageratting&task=viewrates&file=<?php echo $image->name;?>&f=<?php echo htmlentities(urlencode($image->folder));?>" style="text-decoration:underline;">View Full Size Image</a>
</td>
</tr>
<?php
//}
?>
<tr>
<td>
<span>
<input type="radio" name="numbervote" value="1" checked /> 1<br />
<input type="radio" name="numbervote" value="2" /> 2<br />
<input type="radio" name="numbervote" value="3" /> 3<br />
<input type="radio" name="numbervote" value="4" /> 4<br />
<input type="radio" name="numbervote" value="5" /> 5<br />
</span>
<span>
<input type="button" value="Rate the image!" onclick="submitVote();"/>
</span>
</td>
</tr>
<tr>
<td>
<div id="load" style="color:red;font-size:11px;font-style:italic;"></div>
</td>
</tr>
<tr>
<td>
<span style="display:none;color:red;font-size:11px;font-style:italic;" id="numbervoteErr"><?php echo 'Rating must be a number between 0 and 5';?></span>
</td>
</tr>
</table>
<input type="hidden" name="isSaveRate" value="1" />
<input type="hidden" name="option" value="com_imageratting" />
<input type="hidden" name="name" value="<?php echo $image->name; ?>" />
<input type="hidden" name="folder" value="<?php echo $image->folder; ?>" />
<input type="hidden" name="task" value="rate" />
</form>
功能getCheckedRadio(无线电组)
{
对于(变量i=0;i“9”))返回false;
}
返回true;
}
函数xmlhttpPost(strURL){
var xmlHttpReqs=false;
if(window.XMLHttpRequest){
XMLHttpRequest=新的XMLHttpRequest();
}else if(window.ActiveXObject){
xmlHttpReqs=新的ActiveXObject(“Microsoft.XMLHTTP”);
}
xmlHttpReqs.open('POST',strURL,true);
setRequestHeader('Content-Type','application/x-www-form-urlencoded');
xmlHttpReqs.onreadystatechange=函数(){
if(xmlHttpReqs.readyState==4){
updatepage(xmlHttpReqs.responseText);
setTimeout(“window.location='index.php',2000);
}
}
document.getElementById(“加载”).innerHTML=“加载…”;
send(getquerystring());
}
函数getquerystring(){
var form=document.forms['rateForm'];
var numbervote=form.numbervote.value;
var name=form.name.value;
var folder=form.folder.value;
qstr='w='+escape(numbernote)+'&w1='+escape(name)+'&w2='+escape(文件夹);
返回qstr;
}
函数chck(){
xmlhttpPost(“modules/mod_image_ratting/saverate.php”);
}
函数更新页(str){
document.getElementById(“load”).innerHTML=str;
document.getElementById(“加载”).style.visibility=“可见”;
}
函数submitVote()
{
var form=document.rateForm;
var checkedButton=getcheckedbradio(document.rateForm.elements.numbernote);
如果(选中按钮)
{
selectedvalue=checkedButton.value;
}
如果(selectedvalue=='')
{
document.getElementById('numbervoterr').style.display='block';
返回false;
}如果(!isInteger(selectedvalue)){
document.getElementById('numbervoterr').style.display='block';
返回false;
}否则如果(selectedvalue>10){
document.getElementById('numbervoterr').style.display='block';
返回false;
}
其他的
{
chck();
}
}
您可以使用ajax实现这一点。我将使用我编写的代码作为示例,向您展示它是如何完成的。见下文:
首先,您需要显示表单的模块,例如
<form action="#" method="post" name="signup">
<input type="text" name="address" id="address" value="Enter email address" size="30" />
<input type="submit" name="submit" value="Signup" />
<div id="msg"></div>
</form>
现在您需要接受这个ajax请求。要做到这一点,您需要创建一个组件(从上面的ajax url可以看到)
在该组件的控制器中,您需要一个函数:
function adduser() {
$app = JFactory::getApplication();
$model = $this->getModel('signup');
$data = $model->addUser();
echo $data;
$app->close();
}
最后,在组件的模型中,处理post请求(在您的案例中存储投票),然后返回您想要的任何数据
function signup() {
$address = JRequest::getVar('address', '');
$msg = 'Thank you for registering!';
if ($address != '') {
$db = &JFactory::getDBO();
$address = $db->getEscaped($address); // escape the email string to prevent sql injection
$db->setQuery("SELECT * FROM `#__users` WHERE `email`='$address'");
$db->Query();
if ($db->getNumRows() != 0) $msg = 'You are already registered, thank you.';
else {
$db->setQuery("INSERT INTO `#__users` (`name`, `username`, `email`, `usertype`, `block`, `gid`, `registerDate`) VALUES ('default', '$address', '$address', 'Registered', 0, 18, '".date('Y-m-d H:i:s')."')");
$db->query();
$user_id = $db->insertid();
$db->setQuery("INSERT INTO `#__core_acl_aro` (`section_value`, `value`, `name`) VALUES ('users', $user_id, '$address')");
$db->query();
$aro_id = $db->insertid();
$db->setQuery("INSERT INTO `#__core_acl_groups_aro_map` (`group_id`, `aro_id`) VALUES (18, $aro_id)");
$db->query();
}
} else {
$msg = 'Please enter an email address.';
}
return $msg;
}
function signup() {
$address = JRequest::getVar('address', '');
$msg = 'Thank you for registering!';
if ($address != '') {
$db = &JFactory::getDBO();
$address = $db->getEscaped($address); // escape the email string to prevent sql injection
$db->setQuery("SELECT * FROM `#__users` WHERE `email`='$address'");
$db->Query();
if ($db->getNumRows() != 0) $msg = 'You are already registered, thank you.';
else {
$db->setQuery("INSERT INTO `#__users` (`name`, `username`, `email`, `usertype`, `block`, `gid`, `registerDate`) VALUES ('default', '$address', '$address', 'Registered', 0, 18, '".date('Y-m-d H:i:s')."')");
$db->query();
$user_id = $db->insertid();
$db->setQuery("INSERT INTO `#__core_acl_aro` (`section_value`, `value`, `name`) VALUES ('users', $user_id, '$address')");
$db->query();
$aro_id = $db->insertid();
$db->setQuery("INSERT INTO `#__core_acl_groups_aro_map` (`group_id`, `aro_id`) VALUES (18, $aro_id)");
$db->query();
}
} else {
$msg = 'Please enter an email address.';
}
return $msg;
}