更改Wordpress默认图库输出

Question

我希望使用Wordpress库快捷方式,但我想将输出绑定到Foundation Orbit插件(制作滑块).这是我想要输出的HTML:

<div class="slideshow-wrapper">
    <div class="preloader"></div>
    <ul data-orbit>
        <li>
            <img src="img1.png" alt="bla bla bla" />
        </li>
        <li>
            <img src="img2.png" alt="bla bla bla" />
        </li>
        <li>
            <img src="img3.png" alt="bla bla bla" />
        </li>
        <li>
            <img src="img4.png" alt="bla bla bla" />
        </li>
    </ul>
</div>

是否可以放入functions.php(或类似)某些东西来实现这一目标？

Answer 1

确实是的.很久以前我发现了这段代码并且从那时起就一直在使用它.将WP的默认图库自定义为您想要的任何内容都很棒.

有一个过滤器post_gallery,您可以使用它来自定义所有默认WP库.这是我使用的代码示例,它适用于您提供的模板.我尽可能地清理了它.

该函数的第一部分几乎是图库附件处理,因此您可能只想更改后半部分,即确定图库模板输出的部分(按照注释):

add_filter('post_gallery', 'my_post_gallery', 10, 2);
function my_post_gallery($output, $attr) {
    global $post;

    if (isset($attr['orderby'])) {
        $attr['orderby'] = sanitize_sql_orderby($attr['orderby']);
        if (!$attr['orderby'])
            unset($attr['orderby']);
    }

    extract(shortcode_atts(array(
        'order' => 'ASC',
        'orderby' => 'menu_order ID',
        'id' => $post->ID,
        'itemtag' => 'dl',
        'icontag' => 'dt',
        'captiontag' => 'dd',
        'columns' => 3,
        'size' => 'thumbnail',
        'include' => '',
        'exclude' => ''
    ), $attr));

    $id = intval($id);
    if ('RAND' == $order) $orderby = 'none';

    if (!empty($include)) {
        $include = preg_replace('/[^0-9,]+/', '', $include);
        $_attachments = get_posts(array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));

        $attachments = array();
        foreach ($_attachments as $key => $val) {
            $attachments[$val->ID] = $_attachments[$key];
        }
    }

    if (empty($attachments)) return '';

    // Here's your actual output, you may customize it to your need
    $output = "<div class=\"slideshow-wrapper\">\n";
    $output .= "<div class=\"preloader\"></div>\n";
    $output .= "<ul data-orbit>\n";

    // Now you loop through each attachment
    foreach ($attachments as $id => $attachment) {
        // Fetch the thumbnail (or full image, it's up to you)
//      $img = wp_get_attachment_image_src($id, 'medium');
//      $img = wp_get_attachment_image_src($id, 'my-custom-image-size');
        $img = wp_get_attachment_image_src($id, 'full');

        $output .= "<li>\n";
        $output .= "<img src=\"{$img[0]}\" width=\"{$img[1]}\" height=\"{$img[2]}\" alt=\"\" />\n";
        $output .= "</li>\n";
    }

    $output .= "</ul>\n";
    $output .= "</div>\n";

    return $output;
}

只需将其粘贴到您的functions.php文件中并进行修改即可根据您的需要进行调整.我很确定这对你有用,因为它对我有用:)

Answer 2

超级回答Mathielo.

但是,我需要包含标题的选项,所以我修改了你的代码以使用 wp_prepare_attachment_for_js()函数,因为它似乎提供了必要的数据.

add_filter('post_gallery', 'my_post_gallery', 10, 2);
function my_post_gallery($output, $attr) {
global $post;

if (isset($attr['orderby'])) {
    $attr['orderby'] = sanitize_sql_orderby($attr['orderby']);
    if (!$attr['orderby'])
        unset($attr['orderby']);
}

extract(shortcode_atts(array(
    'order' => 'ASC',
    'orderby' => 'menu_order ID',
    'id' => $post->ID,
    'itemtag' => 'dl',
    'icontag' => 'dt',
    'captiontag' => 'dd',
    'columns' => 3,
    'size' => 'thumbnail',
    'include' => '',
    'exclude' => ''
), $attr));

$id = intval($id);
if ('RAND' == $order) $orderby = 'none';

if (!empty($include)) {
    $include = preg_replace('/[^0-9,]+/', '', $include);
    $_attachments = get_posts(array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));

    $attachments = array();
    foreach ($_attachments as $key => $val) {
        $attachments[$val->ID] = $_attachments[$key];
    }
}

if (empty($attachments)) return '';

// Here's your actual output, you may customize it to your need
$output = "<div class=\"slideshow-wrapper\">\n";
$output .= "<div class=\"preloader\"></div>\n";
$output .= "<ul data-orbit>\n";

// Now you loop through each attachment
foreach ($attachments as $id => $attachment) {
    // Fetch all data related to attachment 
    $img = wp_prepare_attachment_for_js($id);

    // If you want a different size change 'large' to eg. 'medium'
    $url = $img['sizes']['large']['url'];
    $height = $img['sizes']['large']['height'];
    $width = $img['sizes']['large']['width'];
    $alt = $img['alt'];

    // Store the caption
    $caption = $img['caption'];

    $output .= "<li>\n";
    $output .= "<img src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"{$alt}\" />\n";

    // Output the caption if it exists
    if ($caption) { 
        $output .= "<div class=\"orbit-caption\">{$caption}</div>\n";
    }
    $output .= "</li>\n";
}

$output .= "</ul>\n";
$output .= "</div>\n";

return $output;
}