Javascript 根据第一个下拉列表的选择，将初始值加载到第二个下拉列表中
您好，我正在尝试从我的下拉列表中从Javascript 根据第一个下拉列表的选择，将初始值加载到第二个下拉列表中,javascript,jquery,html,joomla,joomla-extensions,Javascript,Jquery,Html,Joomla,Joomla Extensions,您好，我正在尝试从我的下拉列表中从hikashop\u product\u characteristic\u 1中的默认值加载信息。根据第一个下拉列表中的默认值，我想在hikashop\u product\u option\u 1下拉列表下隐藏所有其他选项s <select id="hikashop_product_characteristic_1" name="hikashop_product_characteristic[1]" class="inputbox" size="1" on
hikashop\u product\u characteristic\u 1hikashop\u product\u option\u 1选项<select id="hikashop_product_characteristic_1" name="hikashop_product_characteristic[1]" class="inputbox" size="1" onchange="return hikashopUpdateVariant(this);">
<option value="2" selected="selected">Twin</option>
<option value="6">Full</option>
<option value="7">Queen</option>
<option value="8">King</option>
<option value="9">Cal King</option>
</select>
<select id="hikashop_product_option_1" name="hikashop_product_option[1]" class="inputbox" size="1" onchange="hikashopChangeOption();">
<option value="0" selected="selected">No</option>
<option value="775"> Twin ( +
$39.99
)</option>
<option value="774"> Twin Heavy Duty ( +
$49.99
)</option>
<option value="769"> Twin Heavy Duty Glideamatic ( +
$59.99
)</option>
<option value="772"> Twin XL ( +
$39.99
)</option>
<option value="771"> Twin XL Heavy Duty ( +
$49.99
)</option>
<option value="770"> Twin XL Heavy Duty Glideamatic ( +
$59.99
)</option>
<option value="776"> Full ( +
$39.99
)</option>
<option value="777"> Full Heavy Duty ( +
$49.99
)</option>
<option value="778"> Full Heavy Duty Glideamatic ( +
$59.99
)</option>
<option value="773"> Queen ( +
$49.99
)</option>
<option value="779"> Queen Heavy Duty ( +
$59.99
)</option>
<option value="780"> Queen Heavy Duty Glideamatic ( +
$99.99
)</option>
<option value="781"> King ( +
$59.99
)</option>
<option value="782"> King Heavy Duty ( +
$69.99
)</option>
<option value="783"> King Heavy Duty Glideamatic ( +
$99.99
)</option>
<option value="784"> Cal King ( +
$59.99
)</option>
<option value="785"> Cal King Heavy Duty ( +
$69.99
)</option>
<option value="786"> Cal King Heavy Duty Glideamatic ( +
$99.99
)</option>
</select>
<?php
/**
* @package HikaShop for Joomla!
* @version 2.3.0
* @author hikashop.com
* @copyright (C) 2010-2014 HIKARI SOFTWARE. All rights reserved.
* @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
*/
defined('_JEXEC') or die('Restricted access');
?><table class="hikashop_product_options_table">
<?php
$this->setLayout('listing_price');
$old_show_discount = $this->params->get('show_discount');
$old_per_unit = $this->params->get('per_unit',1);
$this->params->set('show_discount',0);
$this->params->set('per_unit',0);
$this->params->set('from_module','1');
$i=0;
$js="var hikashop_options=Array();";
foreach($this->element->options as $optionElement){
?>
<tr>
<?php $this->values = array();
$value = 0;
$currency = hikashop_get('class.currency');
$map = 'hikashop_product_option['.$i.']';
$id = 'hikashop_product_option_'.$i;
if(empty($optionElement->variants)){
if(!$optionElement->product_published || (!$this->config->get('show_out_of_stock',1) && $optionElement->product_quantity==0)) continue;
$this->values[] = JHTML::_('select.option', 0,JText::_('HIKASHOP_NO'));
$text = JText::_('HIKASHOP_YES');
$this->row =& $optionElement;
if(!empty($optionElement->prices) && $this->params->get('show_price')){
$ok = null;
$positive=1;
foreach($optionElement->prices as $k => $price){
if(empty($price->price_min_quantity)){
$ok = $price;
if($price->price_value<0) $positive=false;
break;
}
}
$this->row->prices = array($ok);
$text.=' ( '.($positive?'+ ':'').strip_tags($this->loadTemplate()).' )';
if($this->params->get('price_with_tax')){
$price = $ok->price_value_with_tax;
}else{
$price = $ok->price_value;
}
$js.="
hikashop_options[".(int)$optionElement->product_id."]=".(float)$price.";";
}
$this->values[] = JHTML::_('select.option', $optionElement->product_id,$text);
}else{
$defaultValue=array();
if(isset($optionElement->characteristics) && is_array($optionElement->characteristics) && count($optionElement->characteristics)){
foreach($optionElement->characteristics as $char){
$defaultValue[]=$char->characteristic_id;
}
}
foreach($optionElement->variants as $variant){
if(!$variant->product_published || (!$this->config->get('show_out_of_stock',1) && empty($variant->product_quantity))) continue;
if($variant->product_sale_start>time()) continue;
if($variant->product_sale_end!='' && $variant->product_sale_end!='0' && $variant->product_sale_end<time()) continue;
if(empty($variant->variant_name)){
if(empty($variant->characteristics_text)){
$text = $variant->product_name;
}else{
$text = $variant->characteristics_text;
}
}else{
$text = $variant->variant_name;
}
$this->row =& $variant;
if(!empty($variant->prices) && $this->params->get('show_price')){
$ok = null;
$positive=1;
foreach($variant->prices as $k => $price){
if(empty($price->price_min_quantity)){
$ok = $price;
if($price->price_value<0) $positive=false;
break;
}
}
$this->row->prices = array($ok);
$text.=' ( '.($positive?'+ ':'').strip_tags($this->loadTemplate()).' )';
if($this->params->get('price_with_tax')){
$price = $ok->price_value_with_tax;
}else{
$price = $ok->price_value;
}
$js.="
hikashop_options[".(int)$variant->product_id."]=".(float)$price.";";
}
if($defaultValue && isset($variant->characteristics) && is_array($variant->characteristics) && count($variant->characteristics)){
$default = true;
foreach($variant->characteristics as $char){
if(!in_array($char->characteristic_id,$defaultValue)){
$default = false;
}
}
if($default){
$value = $variant->product_id;
}
}
$this->values[] = JHTML::_('select.option', $variant->product_id,$text);
}
}
if(!count($this->values)) continue;
$html = JHTML::_('select.genericlist', $this->values, $map, 'class="inputbox" size="1" onchange="hikashopChangeOption();"', 'value', 'text', (int)$value,$id );
if(!empty($optionElement->variants)){
$optionInfo =& $optionElement->main;
}else{
$optionInfo =& $optionElement;
}
$options='';
if(!empty($optionInfo->product_description) || !empty($optionInfo->product_url)){
$options='<img src="'.HIKASHOP_IMAGES.'info.png" alt="Information"/>';
$description = '';
if(!empty($optionInfo->product_description)){
$description = $this->escape(strip_tags(JHTML::_('content.prepare',$optionInfo->product_description)));
$options='<span class="hikashop_option_info" title="'.$description.'">'.$options.'</span>';
}
if(!empty($optionInfo->product_url)){
JHTML::_('behavior.modal');
if(empty($description)){
$description = $optionInfo->product_name;
}
$options='<a class="hikashop_option_info_link modal" rel="{handler: \'iframe\', size: {x: 450, y: 480}}" title="'.$description.'" href="'.$optionInfo->product_url.'">'.$options.'</a>';
}
}
$html='<span class="hikashop_option_name" >'.$optionInfo->product_name.$options.'</span></td><td>'.$html;
?>
<td>
<?php echo $html; ?>
</td>
</tr>
<?php $i++;
}
global $Itemid;
$url_itemid='';
if(!empty($Itemid)){
$url_itemid='&Itemid='.$Itemid;
}
$baseUrl = hikashop_completeLink('product&task=price',true,true);
if(strpos($baseUrl,'?')!==false){
$baseUrl.='&';
}else{
$baseUrl.='?';
}
$js = $js. "
function hikashopChangeOption(){
var j = 0;
total_option_price = 0;
while(true){
var option = document.getElementById('hikashop_product_option_'+j);
if(!option){
break;
}
j++;
var option_price = hikashop_options[option.value];
if(option_price){
total_option_price+=option_price;
}
}
var arr = new Array();
arr = document.getElementsByName('hikashop_price_product');
for(var i = 0; i < arr.length; i++){
var obj = document.getElementsByName('hikashop_price_product').item(i);
var id_price = 'hikashop_price_product_' + obj.value;
var id_price_with_options = 'hikashop_price_product_with_options_' + obj.value;
var price = document.getElementById(id_price);
var price_with_options = document.getElementById(id_price_with_options);
if(price && price_with_options){
price_with_options.value = parseFloat(price.value) + total_option_price;
}
}
hikashopRefreshOptionPrice();
}
function hikashopRefreshOptionPrice(){
var price_div = document.getElementById('hikashop_product_id_main');
var inputs = price_div.getElementsByTagName('input');
if(inputs[0]){
var id_price_with_options = 'hikashop_price_product_with_options_' + inputs[0].value;
var price_with_options = document.getElementById(id_price_with_options);
if(price_with_options){
try{
new Ajax('".$baseUrl."price='+price_with_options.value+'".$url_itemid."', { method: 'get', onComplete: function(result) { var totalPrice = window.document.getElementById('hikashop_product_price_with_options_main'); if(totalPrice) totalPrice.innerHTML = result;}}).request();
}catch(err){
new Request({url:'".$baseUrl."price='+price_with_options.value+'".$url_itemid."', method: 'get', onComplete: function(result) { var totalPrice = window.document.getElementById('hikashop_product_price_with_options_main'); if(totalPrice) totalPrice.innerHTML = result;}}).send();
}
}
}
}
window.addEvent('domready', function() { hikashopChangeOption(); });
";
if (!HIKASHOP_PHP5) {
$doc =& JFactory::getDocument();
}else{
$doc = JFactory::getDocument();
}
$doc->addScriptDeclaration("\n<!--\n".$js."\n//-->\n");
$this->params->set('show_discount',$old_show_discount);
$this->params->set('per_unit',$old_per_unit);
$this->params->set('from_module','');
?>
</table>
function hikashopUpdateVariant(obj){
var options = ['1'];
var len = options.length;
var selection = '';
var found=false;
try { obj.blur(); } catch(e){}
if(obj.type=='radio'){
var form = document['hikashop_product_form'];
if(form){
for (var i = 0; i < len; i++){
var checkFields = form.elements['hikashop_product_characteristic['+options[i]+']'];
if(checkFields){
if(!checkFields.length && checkFields.value){
selection = selection + '_' + checkFields.value;
continue;
}
var len2 = checkFields.length;
for (var j = 0; j < len2; j++){
if(checkFields[j].checked){
selection = selection + '_' + checkFields[j].value;
found=true;
}
}
}
if(!found){
return true;
}
}
}
}else{
for (var i = 0; i < len; i++){
selection = selection + '_' + document.getElementById('hikashop_product_characteristic_'+options[i]).value;
}
}
hikashopUpdateVariantData(selection);
return true;
}
function hikashopUpdateVariantData(selection){
if(selection){
var names = ['id','name','code','image','price','quantity','description','weight','url','width','length','height','contact','custom_info','files'];
var len = names.length;
for (var i = 0; i < len; i++){
var el = document.getElementById('hikashop_product_'+names[i]+'_main');
var el2 = document.getElementById('hikashop_product_'+names[i]+selection);
if(el && el2) el.innerHTML = el2.innerHTML.replace(/_VARIANT_NAME/g, selection);
}
if(typeof this.window['hikashopRefreshOptionPrice'] == 'function') hikashopRefreshOptionPrice();
if(window.Oby && window.Oby.fireAjax) window.Oby.fireAjax("hkContentChanged");
}
return true;
}
函数hikashopUpdateVariant（obj）{
var选项=['1']；
var len=options.length；
var选择=“”；
var=false；
试试{obj.blur（）；}catch（e）{}
如果（对象类型=='radio'）{
风险值形式=文件[‘hikashop_产品形式’]；
如有需要（表格）{
对于（变量i=0；ifunction hikashopChangeOption(){
var j = 0;
total_option_price = 0;
while(true){
var option = document.getElementById('hikashop_product_option_'+j);
if(!option){
break;
}
j++;
var option_price = hikashop_options[option.value];
if(option_price){
total_option_price+=option_price;
}
}
var arr = new Array();
arr = document.getElementsByName('hikashop_price_product');
for(var i = 0; i < arr.length; i++){
var obj = document.getElementsByName('hikashop_price_product').item(i);
var id_price = 'hikashop_price_product_' + obj.value;
var id_price_with_options = 'hikashop_price_product_with_options_' + obj.value;
var price = document.getElementById(id_price);
var price_with_options = document.getElementById(id_price_with_options);
if(price && price_with_options){
price_with_options.value = parseFloat(price.value) + total_option_price;
}
}
hikashopRefreshOptionPrice();
}
function hikashopRefreshOptionPrice(){
var price_div = document.getElementById('hikashop_product_id_main');
var inputs = price_div.getElementsByTagName('input');
if(inputs[0]){
var id_price_with_options = 'hikashop_price_product_with_options_' + inputs[0].value;
var price_with_options = document.getElementById(id_price_with_options);
if(price_with_options){
try{
new Ajax('/mattresses/product/price/tmpl-component.html?price='+price_with_options.value+'&Itemid=231', { method: 'get', onComplete: function(result) { var totalPrice = window.document.getElementById('hikashop_product_price_with_options_main'); if(totalPrice) totalPrice.innerHTML = result;}}).request();
}catch(err){
new Request({url:'/mattresses/product/price/tmpl-component.html?price='+price_with_options.value+'&Itemid=231', method: 'get', onComplete: function(result) { var totalPrice = window.document.getElementById('hikashop_product_price_with_options_main'); if(totalPrice) totalPrice.innerHTML = result;}}).send();
}
}
}
}
window.addEvent('domready', function() { hikashopChangeOption(); });
//-->
函数hikashopChangeOption（）{
var j=0；
总期权价格=0；
while（true）{
var option=document.getElementById（'hikashop\u product\u option\uj'）；
如果（！选项）{
打破
}
j++；
var期权价格=hikashop期权[期权价值]；
如果（选项价格）{
总期权价格+=期权价格；
}
}
var arr=新数组（）；
arr=document.getElementsByName（'hikashop_price_product'）；
对于（变量i=0；i
选择的选项的值放入逗号分隔的字符串中：
<select id="hikashop_product_characteristic_1" name="hikashop_product_characteristic[1]" class="inputbox" size="1">
<option value="0,775,774,769" selected="selected">Twin</option>
<option value="0,772,771,770">Twin XL</option>
<option value="0,776,777,778">Full</option>
<option value="0,773,779,780">Queen</option>
<option value="0,781,782,783">King</option>
<option value="0,784,785,786">Cal King</option>
</select>
function refreshProducts() {
//get the selected value and parse it to array
var parsedValues = $("#hikashop_product_characteristic_1").val().split(",");
//find products select
var selectProduct = $("#hikashop_product_option_1");
//reset selection
selectProduct.val(0);
//hide all it's options
selectProduct.find("option").css({
display: 'none'
});
//go over each parsed value
$.each(parsedValues, function (index, value) {
//find and show an option which has it's value equals to needed value
selectProduct.find("option[value='" + parseFloat(value) + "']").css({
display: 'block'
});
});
}
$(document).ready(function(){
refreshProducts();
//handle selection of characteristic
$(document).on("change", "#hikashop_product_characteristic_1", function(evt){
refreshProducts();
});
});
最后，您应该在$（document.ready（）
中调用此函数，并在每次更改特征时选择
$(document).ready(function(){
refreshProducts();
//handle selection of characteristic
$(document).on("change", "#hikashop_product_characteristic_1", function(evt){
refreshProducts();
});
});