Display attachments by ID in a wp.media frame

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I’m trying to use the new wp.media uploader frame for an app I’m building. I’ve read up a lot on other questions, blog posts, etc etc.

The code I pasted below is working already quite fine and even does some extra stuff that I left in for reference in case it’s useful to anyone.

But there is one modification I’d like to bring to it: when the frame is opened, I want it to filter the “media library” display to only show attachment defined by a list of IDs that I provide.

Here is my current code:

// Uploading files
 var file_frame;

 $('.upload_attachments_button').on('click', function( event ){

event.preventDefault();

// If the media frame already exists, reopen it.
if ( file_frame ) {
  file_frame.open();
  return;
}

// Create the media frame.
file_frame = wp.media.frames.file_frame = wp.media({
  title: jQuery( this ).data( 'uploader_title' ),
  button: { text: jQuery( this ).data( 'uploader_button_text' ) },
  library : { type : 'image' },
  multiple: true  // Set to true to allow multiple files to be selected
});

   // When frame is open, select existing image attachments from custom field
file_frame.on( 'open', function() {

var selection = file_frame.state().get('selection');
var attachment_ids = jQuery('#attachment_ids').val().split(',');

// This is my attempt at showing only attachment with ID 275 --> but doesn't work!
file_frame.state().set( 'library', media.query({ id: 275 }) );

attachment_ids.forEach(function(id) {
  attachment = wp.media.attachment(id);
  attachment.fetch();
  selection.add( attachment ? [ attachment ] : [] );
});
 });

  // When images are selected, place IDs in hidden custom field and show thumbnails.
file_frame.on( 'select', function() {

var selection = file_frame.state().get('selection');

// Place IDs in custom field
var attachment_ids = selection.map( function( attachment ) {
  attachment = attachment.toJSON();
  return attachment.id;
}).join();
if( attachment_ids.charAt(0) === ',' ) { attachment_ids = attachment_ids.substring(1); }
$('#attachment_ids').val( attachment_ids );


// Show Thumbs
var attachment_thumbs = selection.map( function( attachment ) {
  attachment = attachment.toJSON();
  if( attachment.id != '' ) { return '<img src="' + attachment.sizes.thumbnail.url + '" id="id-' + attachment.id + '" />'; }
}).join(' ');
$('#images-feedback').show();
$('#thumbs').html(attachment_thumbs);

});

// Finally, open the modal
file_frame.open();
});


 // Place selected thumbnail ID into custom field to save as featured image 
 $(document).on('click', '#thumbs img', function() {
 $('#thumbs img').removeClass('chosen');
 var thumb_ID = $(this).attr('id').substring(3);
 $('#wpuf_featured_img').val(thumb_ID);
 $(this).addClass('chosen');
 });

I’m attempting to filter the media library display as seen here, but it gives no results:

file_frame.state().set( 'library', media.query({ id: 275 }) );

Does anyone know how to write the syntax?

1
1

You can always filter on the client side:

var query = wp.media.query();

query.filterWithIds = function(ids) {
    return _(this.models.filter(function(c) { return _.contains(ids, c.id); }));
};

var res = query.filterWithIds([6,87]); // change these to your IDs

res.each(function(v){
    console.log( v.toJSON() );
});

Disclaimer: found the beautiful filterWithIds function in this SO question.

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