¿Está buscando una manera de crear un nuevo metabox dentro de su pantalla de edición de post con un menú de selección? Mientras que probablemente hay un plugin para esto, hemos creado un fragmento de código rápido que se puede utilizar para adjuntar archivos PDF a publicar con la selección de archivos metabox personalizado.
Instrucciones:
Todo lo que tienes que hacer es añadir este código al archivo functions.php de tu tema o en un plugin específico del sitio:
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];
}
Para mostrar el archivo PDF, puede utilizar este código:
<? pdf_file_url(); ?>
<a href="<? pdf_file_url(); ?>">My PDF File</a>
Nota: Si es la primera vez que añade fragmentos de código en WordPress, consulte nuestra guía sobre cómo copiar / pegar correctamente fragmentos de código en WordPress, para no romper accidentalmente su sitio.
Si te ha gustado este fragmento de código, por favor considere revisar nuestros otros artículos en el sitio como: 20 mejores temas de WordPress para iglesias para ampliar el rebaño y cómo realizar un seguimiento de los enlaces de afiliados en Google Analytics.
Hi, i need add mor mime type, it’s possible?.
You can do an array for the mime, eg:
‘post_mime_type’ => array(‘application/doc’,’application/pdf’)
The isn’t working in loop.
The <? pdf_file_url(); ?> isn't working in loop.
thanks for the code. 🙂
Hi, thank you for the script. I’m using it with a custom post type.
Display is correct but I can’t save the pdf. Rather, it does save it the first time but then I cannot change it. So I guess it is the ‘save’ function:
function save_pdf_link(){
global $post;
if (defined(‘DOING_AUTOSAVE’) && DOING_AUTOSAVE){ return $post->ID; }
update_post_meta($post->ID, “link”, $_POST[“link”]);
}
My custom type it is called ‘events’. Any idea to make it work?
Thank You
hi mate, i have a custom post type , listing, i cannot add the above php code to it to display the PDF, when i add this code to functions.php then it gets added for my Posts but not my listings .
cheers
Hi, since upgrading to WP3.5 this has disappeared from my edit posts/pages, so I can no longer add/edit PDF’s. Can anyone help?
Thanks, Craig
RESOLVED!!! the snippet missing the “php”
sorry for my english:
you can integrate this code for a page? what are the changes to be done?
I did a test back into an post but I do not work that the link is
Great job! But if I try to add multiple Metabox I end up getting the same file for every Custom filed.. I tried making different functions like: function pdf2_ Any ideas?
your code breaks my site.
found it very useful,is there any way to display file name instead of just PDF File:?
tnx
just replace
$pdf[]= $file->guid
with
$pdf[]= $file->post_title
This is a fantastic post, extremely useful. I am trying to adapt it to enable multiple PDF’s to be selected and then output but struggling, what would be the best way to approach? Any advice appreciated, and thanks again for the article
Não testei, mas tenta inserir o atributo “multiple” no .
Hi Kevin,
Got in here upon a search and the pdf_link function came in handy to fix as a part of a custom theme and post types am working on.
Thank you, you saved me hours.
Kevin I found the solution :
Replace the following :
echo ‘SELECT pdf FILE’;
with this :
echo ”;
I know this is a very old post but the right solution would be to pass a empty value i guess!
Replace the following :
echo ‘SELECT pdf FILE’;
with this :
echo ‘SELECT pdf FILE’;
I can think of so many websites that would benefit from this!
How would I go about including this into an if statement? So if a pdf has been uploaded, show the link for example…
Could could just replace the pdf_file_url function with the following that would set things up for you. http://pastebin.com/KZmigAyF
Thankyou so much Kevin, just tested it and that works like a charm 🙂 amazing – will re-tweet
Cool glad to hear I could help.
link not working