[英]vanilla JS AJAX call function in PHP ? WP_query
我无法在我的 Function.php 中调用我的 function
function my_enqueue() {
wp_enqueue_script( 'wc_shop', get_template_directory_uri() . '/wc_shop.js', array('') );
wp_localize_script( 'wc_shop', 'a_product_filter',
array( 'ajax_url' => admin_url( 'admin-ajax.php' ) ) );
}
add_action( 'wp_enqueue_scripts', 'my_enqueue' );
add_action('wp_ajax_a_product_filter', 'a_product_filter');
add_action('wp_ajax_nopriv_a_product_filter', 'a_product_filter');
function a_product_filter() {
echo "called";
$args = array(
'post_type' => 'product',
'posts_per_page' => 5,
'product_tag' => 'FEMALE' //just for testing without passing a variable
);
// Create the new query
$loop = new WP_Query( $args );
// Get products number
$product_count = $loop->post_count;
// If results
if( $product_count > 0 ) :
echo '<ul class="products">';
// Start the loop
while ( $loop->have_posts() ) : $loop->the_post(); //global $product;
//global $post;
wc_get_template_part( 'content', 'product' );
echo '<a href="'.get_permalink($product_id).'">'.get_the_title($product_id).'</a>';
if (has_post_thumbnail( $loop->post->ID ))
echo get_the_post_thumbnail($loop->post->ID, 'shop_catalog');
else
echo '<img src="'.$woocommerce .'/assets/images/placeholder.png" alt="" width="'.$woocommerce->get_image_size('shop_catalog_image_width').'px" height="'.$woocommerce->get_image_size('shop_catalog_image_height').'px" />';
endwhile;
echo '</ul><!--/.products-->';
else :
_e('No product matching your criteria.');
endif; // endif $product_count > 0
}
function ajax_call_test(){
// data to be sent to the POST request
let _data = {
action : 'a_product_filter',
}
fetch(a_product_filter.ajax_url , {
method: "POST",
body: JSON.stringify(_data),
headers: {"Content-type": "application/json; charset=UTF-8"}
})
.then(response => response.json())
.then(json => console.log(json));
}
我不断收到 400 Bad Request 有人可以帮助我并告诉我这有什么问题吗
就像我在评论中所说的那样,后端要求您以正常的 POST 方式发送请求,而不是 JSON。
因此,使用application/x-www-form-urlencoded
作为您的 header 并在正文中发送查询字符串,而不是 JSON。
let _data = { action : 'a_product_filter', product_something: 'value that i want to send to the server'};
fetch(a_product_filter.ajax_url, {
method: 'POST',
body: (new URLSearchParams(_data)).toString(),
headers: { 'Content-type': 'application/x-www-form-urlencoded' }
})
.then(response => response.text())
.then(product_html => document.getElementById('container').insertAdjacentHTML(product_html));
// put the markup created by server and put it inside somewhere in the frontend
然后在后端,为该请求做准备。 这是您可以在服务器中使用的未经测试的代码。 这样当前端请求它时,您的服务器(将处理请求的 PHP 代码将给出您想要响应的产品的标记)。
只要遵循这个想法。 创建标记并响应( echo
和exit
)。
add_action('wp_ajax_a_product_filter', 'a_product_filter');
add_action('wp_ajax_nopriv_a_product_filter', 'a_product_filter');
function a_product_filter() {
// $variable = $_POST['product_something'];
$html_markup = _e('No product matching your criteria.');
$args = array(
'post_type' => 'product',
'posts_per_page' => 5,
'product_tag' => 'FEMALE' //just for testing without passing a variable
);
$loop = new WP_Query($args);
if ($loop->found_posts > 0) {
// get template in string
ob_start();
wc_get_template_part('content', 'product');
$template = ob_get_contents();
ob_end_clean();
$html_markup = '<ul class="products">';
foreach ($loop->get_posts() as $post) {
$html_markup .= '<li>'; // initialize list item
$html_markup .= $template; // add the template
$html_markup .= '<a href="' . get_permalink($post->ID) . '">' . get_title($post->ID). '</a>'; // link and title
$html_markup .= has_post_thumbnail( $loop->post->ID) ? get_the_post_thumbnail($post->ID, 'shop_catalog'); : '<img src="placeholder.jpg" />' ; // image of product
$html_markup .= '</li>'; // end list item
}
$html_markup .= '</ul>';
}
echo $html_markup;
exit;
}
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