我有一个带有2个下拉框的Wordpress网站。当我在第一个下拉框中选择一个选项时,我希望用PHP函数中的数据刷新第二个选项。为此,我需要ajax。但我正在努力将ajax绑定到Wordpress中。
HTML看起来像这样:
<form method="get" action="http://siradjov.anex.at/playground/">
<div class="form-inner">
<div class="listing-search-main">
<input type="text" class="listing-search-text text" name="s" title="Coach House, Golf Course, Water View, etc" value="unique">
<input type="submit" class="listing-search-submit btn btn-large btn-primary" name="search-submit" value="Search">
</div><!-- .listing-search-main -->
<div class="listing-search-details">
<div class="listing-search-field listing-search-field-select listing-search-field-status">
<select class="listing-search-status select" name="status">
<option value="">Status</option>
<option value="sale">Sales</option>
<option value="rent">Rentals</option>
<option value="foreclosure">Foreclosure</option>
</select>
<div class="listing-search-advanced " style="display: block;">
<div class="listing-search-field listing-search-field-select listing-search-field-min">
<select class="listing-search-min select" name="min">
<option value="">Price (min)</option>
<option value="100000">100.000</option>
<option value="200000">200.000</option>
<option value="300000">300.000</option>
<option value="400000">400.000</option>
</select>
现在,例如,当用户选择“Sales”时,我希望使用PHP数组中匹配的价格重新加载第二个选择标记。
PHP函数如下所示:
<?php
$selectedStatus = $_POST['status'];
if($selectedStatus == "sale")
{
// Set price (min) to select
$fields['min']['type'] = 'select';
// Set price (min) select options
$fields['min']['data'] = array(
'100000' => '120,000',
'120000' => '200.000',
'130000' => '300.000',
);
// Set price (max) to select
$fields['max']['type'] = 'select';
// Set price (max) select options
$fields['max']['data'] = array(
'100000' => '120,000',
'120000' => '200.000',
'130000' => '300.000',
);
}
else if($selectedStatus == "rent")
{
// Set price (min) to select
$fields['min']['type'] = 'select';
// Set price (min) select options
$fields['min']['data'] = array(
'200' => '200',
);
// Set price (max) to select
$fields['max']['type'] = 'select';
// Set price (max) select options
$fields['max']['data'] = array(
'200' => '200',
);
}
echo $fields;
我将jQuery Ajax调用保存在单独的.js文件中。代码如下:
jQuery(document).ready(function() {
jQuery(".listing-search-status.select[name='status']").change(function() {
if (this.value == "sale")
{
jQuery.ajax({
type: "POST",
url: "http://siradjov.anex.at/playground/wp-content/plugins/wpcasa-extended-search-status-price-chain-select/wpcasa_custom_prices.php",
data: { status : "sale" },
success: function(data)
{
alert('Sale' + data['min']['data'][0]);
}
});
}
else
{
if (this.value == "rent")
{
jQuery.ajax({
type: "POST",
url: "http://siradjov.anex.at/playground/wp-content/plugins/wpcasa-extended-search-status-price-chain-select/wpcasa_custom_prices.php",
data: { status : "rent" },
success: function(data)
{
alert('Rent' + data['min']['data'][0]);
}
});
}
}
});
});
但警报框没有显示出来。我也没有在Google Chrome控制台上收到任何错误消息。任何人都可以帮助我吗?
答案 0 :(得分:2)
使用Wordpress为您提供的本机方法来利用Ajax请求。
在您的插件文件中,我们需要添加一些操作,以便我们可以发送ajax请求并通过admin-ajax.php
文件对其进行解析。
add_action('wp_ajax_nopriv_ajax_request', 'ajax_controller');
add_action('wp_ajax_ajax_request', 'ajax_controller');
现在我们在插件文件中构建一个ajax控制器。这样做的目的是充当一个控制器,根据FN
请求提供的ajax
参数切换它的输出(稍后会详细介绍)
function ajax_controller(){
$ret = ''; //our return variable
switch($_REQUEST['fn']):
case 'status' :
$ret = update_status($_REQUEST['status']);
break;
endswitch;
echo $ret;
die(); //this makes sure you don't get a "1" or "0" appended to the end of your request.
}
请注意,update_status()
函数是为了封装上面的php代码而创建的。
现在我们已经绑定了动作,并且我们可以无限地使用一个控制器来检索数据。我们只需要对ajax调用进行一些修改。首先,我们可以使用三元分配来进行“租赁/销售”交换,而不是2个ajax调用,这样可以清理。其次,我们需要将URL地址更改为/wp-admin/admin-ajax.php
文件。
var $status = (this.value == "sale") ? this.value : 'rent';
jQuery.ajax({
type: "POST",
url: "/wp-admin/admin-ajax.php",
data: {
action: 'ajax_request',
fn : 'status', //this is the $_REQUEST['fn'] from above
status : $status },
success: function(data){
alert('Sale' + data['min']['data'][0]);
}
});
action
参数是必需的,fn
是我编码原则的结果。 action
属性必须与add_action('wp_ajax_nopriv_
和add_action('wp_ajax_
之后的内容直接匹配。
这应解决它。