1

我想将每个图像的图像标题拉到轮播中。我可以成功拉出 alt 标签，但我无法获得标题。

这是我到目前为止所拥有的，但它正在打破。

    <?php $args = array(
    'post_type' => 'homepageslider',
    'posts_per_page' => 1
    ); 
    $query = new WP_Query($args); 
        while ($query->have_posts()):
        $query->the_post();
        $meta = get_post_meta( get_the_ID(  ), 'homepage_media_gallery', false );

        if ( !is_array( $meta ) )
            $meta = ( array ) $meta;

            if ( !empty( $meta ) ) {
            $meta = implode( ',', $meta );
                $images = $wpdb->get_col( "
                SELECT ID FROM $wpdb->posts
                WHERE post_type = 'attachment'
                AND ID IN ( $meta )
                ORDER BY menu_order ASC
                " );
            foreach ( $images as $att ) {
            // Get image's source based on size, can be 'thumbnail', 'medium', 'large', 'full' or registed post thumbnails sizes
            $attachment_meta = wp_get_attachment($att);
            $link = $attachment_meta['caption'];
            $src = wp_get_attachment_image_src( $att, 'full' );
            $alt = get_post_meta($att, '_wp_attachment_image_alt', true);
            $src = $src[0];
            // show caption                         
            echo $link;
            // Show image
            echo "<div><img src='{$src}' class='project-images' />"; ?>
            <?php if ($alt) : ?>
            <div class='homepage-caption'>
                <?php echo $alt; ?>
            </div>
        <?php endif ?>
     <?php echo "</div>"; 
         }
    } 
endwhile 
?>

你如何获得查询中每张图片的标题？我正在使用 WP Meta Boxes 插件来提取图像。

更新

奥默克说得对。不需要 SQL 查询。这就是我现在所拥有的，它为每个图像提取 alt、标题和描述。

<?php 
    $args = array( 'post_type' => 'attachment', 
       'orderby' => 'menu_order', 
        'order' => 'ASC', 
        'post_mime_type' => 'image' ,
         'post_status' => null, 
         'numberposts' => null, 
          'post_parent' => $post->ID,
         'exclude'     => get_post_thumbnail_id()
    );
$attachments = get_posts($args); ?>
 <?php if ($attachments) : ?>
     <?php foreach ( $attachments as $attachment ): ?>
    <?php 
    $alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
                                $image_title = $attachment->post_title;
                                $caption = $attachment->post_excerpt;
                                $description = $attachment->post_content;
                                $src = wp_get_attachment_image_src( $attachment->ID, 'full' ); 
                                list($width, $height, $type, $attr) = getimagesize($src[0]); ?>

    <div class="projectBlock">
    <div class="projectCopy">

        <h2><?php echo $alt ?></h2>

        <h3><?php echo $caption ?></h3> 
        <p class='projectDescription'><?php echo $description ?></p>
        </div>
    <div class="projectImage">
        <img src="<?php echo $src[0]; ?>" class="project-images 
    </div>
    </div>
4

1 回答 1

1

我不确定您如何使用元框（以及为什么？

$alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
$image_title = $attachment->post_title;
$caption = $attachment->post_excerpt;
$description = $image->post_content;

由于 wp 中的附件实际上是内置的 CPT（实际上是一个帖子）：

附件标题实际上是帖子摘录附件标题是帖子标题附件描述是帖子内容。

所以完整的代码更符合以下内容：

$args = array( 'post_type' => 'attachment', 
                    'orderby' => 'menu_order', 
                    'order' => 'ASC', 
                    'post_mime_type' => 'image' ,
                    'post_status' => null, 
                    'numberposts' => null, 
                    'post_parent' => $post->ID );

        $attachments = get_posts($args);
        if ($attachments) {
            foreach ( $attachments as $attachment ) {
                $alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
                $image_title = $attachment->post_title;
                $caption = $attachment->post_excerpt;
                $description = $attachment->post_content;
                } 
             }
于 2013-03-23T01:22:37.987 回答