When inside of the media uploaded in the post edit screen, just search for your previously attached media and embed it in your new post. The relationship between posts and attachments is preserved in the database. While an attachment can only belong to one post, it can still be embedded in many posts without worry.
Second pass. Known issues: Needs caching (and the cache needs to be tidied up where possible) Post types are hard-coded Which post statuses are we interested in? Here’s the function: /** * Given an attachment ID, searches for any post with that attachment used * as a featured image, or if it is present in … Read more
When I started using media_sideload_image(), I found it pretty useless as it returned a full html tag, instead of the attachment ID, so I created my own version of it which replicates all the functionality of media_sideload_image() and adds some very useful stuff, like: saving the sideloaded file under a completely new filename making the … Read more
I’m assuming you want something like this: |———————| | content | | (static) | |———————| | gallery | | (paged) | |———————| | << pagelinks >> | |———————| In this setup your the post content stays the same, appears to be static, while the gallery is paged. This means you have the main query, showing … Read more
This should get you started: Loop over all posts and build an array of linked image files Loop over all image attachments & cross check if any of them have been linked to Might need to batch it or boost the timeout & memory limit, depending on the server & number of posts you’re working … Read more
I don’t think it’s documented in Codex but quick search in code shows that you can query by mime type. For jpeg images that would be something like: $posts = get_posts( array( ‘post_type’ => ‘attachment’, ‘post_status’ => ‘any’, ‘post_mime_type’ => ‘image/jpeg’, ) ); Not sure what types WP uses for files you need, don’t have … Read more
get_the_excerpt() should work for getting caption just fine. Your issue is that it looks for post to process in global variables and in your code there you are not setting it up with attachments you are iterating through. You need to use setup_postdata() for it to work. Other way would be something like: get_post_field(‘post_excerpt’, $attachment->ID);
There’s a handy built-in function, namely wp_count_attachments(). We can filter out images with wp_count_attachments( $mime_type=”image” ) that returns an object like: stdClass Object ( [image/gif] => 9 [image/jpeg] => 121 [image/png] => 20 [image/x-icon] => 6 [trash] => 0 ) So we can use the one-liner: $count = array_sum( (array) wp_count_attachments( $mime_type=”image” ) ); for … Read more
I’ve spent hours of research and found the solution a few minutes after writing this question: $args = array( ‘post_type’ => ‘attachment’, ‘post_status’ => ‘inherit’, <<– IMPORTANT ‘meta_query’ => array( array( ‘key’ => ‘medientyp’, ‘value’ => ‘Video’ ) ) ); $query = new WP_Query($args);
If you view the Media Library in the list mode: /wp-admin/upload.php?mode=list then you will see the Attach/Detach links for each attachment. Each attachment can only be attached to a single parent through the post_parent field in the wp_posst table. Deleting an image from the post editor will not change the post_parent field to 0. Making … Read more