If you look at the $wpdb->posts table in the database, you will notice that the file names, minus the file type ending, are used for the post_title for attachments. This means that you can effectively search the file name if you can get your search function to search attachments, which the default search (almost) already … Read more
Since (from what I understand) the issue only occurs to imported posts I suggest you try the plugin Search and Replace. It’s a quick and easy way to solve this problem. WP stores the uploaded images in your database. Imported images probably direct to the old root, so you should change that to the new … Read more
With markup embedded into the content there is no less tricky way than regex to do it, save perhaps a markup parser like SimpleHTMLDom function remove_image_link_102512($content) { $pattern = ‘|<a.*?href=”https://wordpress.stackexchange.com/questions/102512/(.*)”.*>?(<img.*?/?>)(?:</a>)?|’; $content = preg_replace($pattern,’$2′,$content); return $content; } add_filter(‘the_content’,’remove_image_link_102512′); As with all regex + markup solutions, I’d test that thoroughly. Of course, as no saved data is … Read more
attachment.php file displays only one attachment (like single.php or page.php). There is no way to list all attachments without coding. WordPress doesn’t have such list ready to use. But it’s rather easy to do it by yourself. Add your custom page template. Assign it to some page. And place something like this inside this template: … Read more
I can’t tell if you want a link to the thumbnail or you want the image to be the thumbnail. To get the image assigned to the post as the thumbnail image, use get_the_post_thumbnail: $thumb = get_the_post_thumbnail($post_id, ‘thumbnail’); To get the thumbnail using the attachment ID use wp_get_attachment_image: $thumb = wp_get_attachment_image( $attachment_id, ‘thumbnail’ ) Not … Read more
If $att is a numeric post ID, then try this: $attachment = get_post( $att ); echo( $attachment->post_excerpt ); has_excerpt() takes a post ID, but the post ID isn’t an object. You have to get the attachment using get_post(), then get the excerpt from there.
Get the attachment ID for the image, then get the post meta field _wp_attachment_metadata for it. This is a serialized array. The field sizes in that array contains all available image sizes. Pseudo-code: $sizes = array(); $attachment_url=”http://examle.com/wp-content-uploads/foo.png”; $attachment_dir = dirname( $attachment_url ); $attachment_id = get_attachment_id( $attachment_url ); $attachment_meta = get_post_meta( $attachment_id, ‘_wp_attachment_metadata’, TRUE ); $sizes[] … Read more
Attachments are posts of type attachment with the parent field set to the post ID they are attached to. The simplest way to see how this works is to look at the attachment functions in core code, /wp-includes/post.php.
If this is a regular custom field, use get_post_meta(): $classes = get_post_meta( $attachment_id, ‘name_of_the_field’, TRUE ); attachment is just another post type, regarding to meta data, it works like regular posts or pages.
Just use a custom $wpdb query, something like function remove_all_attachments() { global $wpdb; $ids = $wpdb->get_col(“SELECT ID FROM $wpdb->posts WHERE post_type=”attachment””); if ( empty($ids) ) return; $remove = implode(‘,’, $ids); // remove post meta $wpdb->query(“DELETE FROM $wpdb->postmeta WHERE post_id IN ({$remove})”); // remove posts $wpdb->query(“DELETE FROM $wpdb->posts WHERE ID = IN ({$remove})”); } After that … Read more