我在wordpress functions.php
文件中使用以下代码在我的自定义帖子类型中创建自定义元框,以便允许我将PDF附加到我的网页。然而,链接将我带到附件页面而不是文件URL,我不能为我的生活找出原因!任何帮助将非常感激。
add_action("admin_init", "pdf_init");
add_action('save_post', 'save_pdf_link');
function pdf_init(){
add_meta_box("my-pdf", "PDF Document", "pdf_link", "post", "normal", "low");
}
function pdf_link(){
global $post;
$custom = get_post_custom($post->ID);
$link = $custom["link"][0];
$count = 0;
echo '<div class="link_header">';
$query_pdf_args = array(
'post_type' => 'attachment',
'post_mime_type' =>'application/pdf',
'post_status' => 'inherit',
'posts_per_page' => -1,
);
$query_pdf = new WP_Query( $query_pdf_args );
$pdf = array();
echo '<select name="link">';
echo '<option class="pdf_select">SELECT pdf FILE</option>';
foreach ( $query_pdf->posts as $file) {
if($link == $pdf[]= $file->guid){
echo '<option value="'.$pdf[]= $file->guid.'" selected="true">'.$pdf[]= $file->guid.'</option>';
}else{
echo '<option value="'.$pdf[]= $file->guid.'">'.$pdf[]= $file->guid.'</option>';
}
$count++;
}
echo '</select><br /></div>';
echo '<p>Selecting a pdf file from the above list to attach to this post.</p>';
echo '<div class="pdf_count"><span>Files:</span> <b>'.$count.'</b></div>';
}
function save_pdf_link(){
global $post;
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE){ return $post->ID; }
update_post_meta($post->ID, "link", $_POST["link"]);
}
add_action( 'admin_head', 'pdf_css' );
function pdf_css() {
echo '<style type="text/css">
.pdf_select{
font-weight:bold;
background:#e5e5e5;
}
.pdf_count{
font-size:9px;
color:#0066ff;
text-transform:uppercase;
background:#f3f3f3;
border-top:solid 1px #e5e5e5;
padding:6px 6px 6px 12px;
margin:0px -6px -8px -6px;
-moz-border-radius:0px 0px 6px 6px;
-webkit-border-radius:0px 0px 6px 6px;
border-radius:0px 0px 6px 6px;
}
.pdf_count span{color:#666;}
</style>';
}
function pdf_file_url(){
global $wp_query;
$custom = get_post_custom($wp_query->post->ID);
echo $custom['link'][0];
}
如果有人想知道,我也从WPSnipp
采购了这段代码答案 0 :(得分:1)
您应该使用wp_get_attachment_url( $id );
功能获取附件的网址。
所以你的代码看起来会更像这样:
foreach ( $query_pdf->posts as $file) {
if($link == $pdf[]= wp_get_attachment_url($file->ID)){
echo '<option value="'.$pdf[]= wp_get_attachment_url($file->ID).'" selected="true">'.$pdf[]= wp_get_attachment_url($file->ID).'</option>';
}else{
echo '<option value="'.$pdf[]= wp_get_attachment_url($file->ID).'">'.$pdf[]= wp_get_attachment_url($file->ID).'</option>';
}
$count++;
}
该链接应该将您带到pdf而不是单个附件模板。
注意:我只对foreach循环进行了采样,因为这是保存的值。