我正在使用此博客文章中的教程来实现Ajax Load More功能。https://rudrastyh.com/wordpress/load-more-posts-ajax.html
我已经在我的存档页面上为所有博客文章成功实现了此功能。但是，我有几个“相关帖子”部分使用无法工作的自定义WP查询。我已在以下评论中尝试过该解决方案：https://rudrastyh.com/wordpress/load-more-posts-ajax.html#comment-1055
它将加载新帖子，但它们未遵循自定义查询的argumenet（特别是仅在同一类别中显示帖子）。
自定义查询正在运行（它显示同一类别的4个相关帖子）。当我加载更多内容时，它不考虑分页（它正在加载6个帖子而不是4个），也不在意查询（它正在加载不属于同一类别的帖子）。
<div class="related-blog-posts gray-bg pt-5 pb-5 blog">
<div class="related-title pb-3">
<h1 class="mb-2">Related Stories</h1>
<img src="/dcustom/wp-content/uploads/2019/04/Path-137@2x.png" />
</div><!-- scroll-down-->
<div class="container">
<div class="row">
<?php
$paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
$query_args = array(
'category__in' => wp_get_post_categories( $post->ID ),
'paged' => $paged,
'post_type' => 'post',
'posts_per_page' => 4,
'post__not_in' => array( $post->ID ),
'orderby' => 'date',
'order' => 'DESC'
);
$third_query = new WP_Query( $query_args ); ?>
<?php
//Loop through posts and display...
if($third_query->have_posts()) : ?>
<?php while ($third_query->have_posts() ) : $third_query->the_post(); ?>
<?php get_template_part('template-parts/content-related-blog-posts'); ?>
<?php endwhile; ?><!-- end the loop-->
<?php endif; ?>
<?php wp_reset_postdata(); ?>
<?php // don't display the button if there are not enough posts
if ( $third_query->max_num_pages > 1 )
echo '<a class="custom_loadmore btn btn-primary">More posts</a>'; // you can use <a> as well
?>
<?php endif; ?><!-- end loop if--->
</div><!-- row -->
</div><!-- container -->
</div><!-- related-case-studies-->
<script>
var test = '<?php echo serialize( $third_query->query_vars ) ?>',
current_page_myajax = 1,
max_page_myajax = <?php echo $third_query->max_num_pages ?>
</script>
<script src="<?php bloginfo('template_url')?>/js/myloadmore.js"></script>
jQuery(function($){ // use jQuery code inside this to avoid "$ is not defined" error
$('.misha_loadmore').click(function(){
var button = $(this),
data = {
'action': 'loadmore',
'query': misha_loadmore_params.posts, // that's how we get params from wp_localize_script() function
'page' : misha_loadmore_params.current_page
};
$.ajax({ // you can also use $.post here
url : misha_loadmore_params.ajaxurl, // AJAX handler
data : data,
type : 'POST',
beforeSend : function ( xhr ) {
button.text('Loading...'); // change the button text, you can also add a preloader image
},
success : function( data ){
if( data ) {
button.text( 'More posts' ).prev().after(data); // insert new posts
misha_loadmore_params.current_page++;
if ( misha_loadmore_params.current_page == misha_loadmore_params.max_page )
button.remove(); // if last page, remove the button
// you can also fire the "post-load" event here if you use a plugin that requires it
// $( document.body ).trigger( 'post-load' );
} else {
button.remove(); // if no data, remove the button as well
}
}
});
});
$('.custom_loadmore').click(function(){
//custom query on front-page.php
var button = $(this),
data = {
'action': 'loadmore',
'query': test,
'page' : current_page_myajax
};
$.ajax({
url : '/dcustom/wp-admin/admin-ajax.php', // AJAX handler
data : data,
type : 'POST',
beforeSend : function ( xhr ) {
button.text('Loading...'); // change the button text, you can also add a preloader image
},
success : function( data ){
if( data ) {
button.text( 'More posts' ).prev().after(data); // insert new posts
current_page_myajax++;
if ( current_page_myajax == max_page_myajax )
button.remove(); // if last page, remove the button
} else {
//button.remove(); // if no data, remove the button as well
}
}
});
});
});
function misha_my_load_more_scripts() {
global $wp_query;
// In most cases it is already included on the page and this line can be removed
wp_enqueue_script('jquery');
// register our main script but do not enqueue it yet
wp_register_script( 'my_loadmore', get_stylesheet_directory_uri() . '/js/myloadmore.js', array('jquery') );
// now the most interesting part
// we have to pass parameters to myloadmore.js script but we can get the parameters values only in PHP
// you can define variables directly in your HTML but I decided that the most proper way is wp_localize_script()
wp_localize_script( 'my_loadmore', 'misha_loadmore_params', array(
'ajaxurl' => site_url() . '/wp-admin/admin-ajax.php', // WordPress AJAX
'posts' => json_encode( $wp_query->query_vars ), // everything about your loop is here
'current_page' => get_query_var( 'paged' ) ? get_query_var('paged') : 1,
'max_page' => $wp_query->max_num_pages,
) );
wp_enqueue_script( 'my_loadmore' );
}
add_action( 'wp_enqueue_scripts', 'misha_my_load_more_scripts' );
/* AJAX LOOP FOR THE ARCHIVE PAGE */
function misha_loadmore_ajax_handler(){
// prepare our arguments for the query
$args = json_decode( stripslashes( $_POST['query'] ), true );
$args['paged'] = $_POST['page'] + 1; // we need next page to be loaded
$args['post_status'] = 'publish';
// it is always better to use WP_Query but not here
query_posts( $args );
if( have_posts() ) :
// run the loop
while( have_posts() ): the_post();
// look into your theme code how the posts are inserted, but you can use your own HTML of course
// do you remember? - my example is adapted for Twenty Seventeen theme
get_template_part( 'template-parts/content-index', get_post_format() );
// for the test purposes comment the line above and uncomment the below one
// the_title();
endwhile;
endif;
die; // here we exit the script and even no wp_reset_query() required!
}
add_action('wp_ajax_loadmore', 'misha_loadmore_ajax_handler'); // wp_ajax_{action}
add_action('wp_ajax_nopriv_loadmore', 'misha_loadmore_ajax_handler'); // wp_ajax_nopriv_{action}