The problem isn’t so much the uploading itself, as that is a network connection between the client and the server. It’s not what’s eating the server’s memory. When WordPress starts ‘cruncing’ the images, that is where PHP comes in and start resizing and cropping the uploaded images. It is before this moment you need to … Read more
WordPress doesn’t store path of generated sizes anywhere, you need to build it. As suggested by @kraftner in comments, wp_get_attachment_metadata() can be used to obtain some of the pieces you need to build the path. An alternative is image_get_intermediate_size(). The missing piece is the absolute path of upload folder. In theory, that can be retrieved … Read more
It depends on your image and stylesheet location. But this is the syntax: .theme-image { background-image: url(‘../images/header-img.jpg’); } The above code is for the structure wp-content – themes – your-theme – images – header-img.jpg – css – style.css You are making the browser come one directory before and search for images directory.
Long story short, you can get info about an attachment by using wp.media.attachment() function. This will give you complete data as long as this attachment is already loaded by another script or an wp.media() popup. If the data is not yet loaded, you can load it using .fetch() method on attachment, which works because it … Read more
Say you have image foo.jpg and bar.jpg in your media library. foo.jpg has caption saying “foo”, and bar.jpg has caption saying “bar”. Create a gallery with those two images, they will show with “foo” and “bar” captions. Want to use them again with a different caption, but using a gallery? No problem. Make another gallery … Read more
Yes! Orangelab has built a plugin which can replace WP’s use of GD with Imagemagick (provided it’s already installed on your server – it’s not included) for creation of all image sizes and thumbs, and even regenerate existing images too! For anyone who cares about image fidelity, this is huge deal, as GD does not … Read more
This issue has been fixed with a filter in WordPress 4.5. If you want to preserve the exif data when resizing use add_filter (‘image_strip_meta’, false);
If you really want to use these classes the only way would be to extend both existing implementations Wp_Image_Editor_Imagick and Wp_Image_Editor_GD. Here’s an approach for the Wp_Image_Editor_GD: namespace WPSE98156; use Wp_Image_Editor_Gd, Wp_Error; class WatermarkImageEditor extends Wp_Image_Editor_Gd { /* * @param resource $stamp (A GD image resource) * * @return bool|WP_Error */ public function stamp_watermark( $stamp … Read more
I found a solution based on the code of this page: https://core.trac.wordpress.org/ticket/22180 All attachment files have a post status of ‘inherit’. So first you need to add “inherit” as one of the possible post status to search for. You can use the wp_link_query_args filter to do that. function my_wp_link_query_args( $query ) { if (is_admin()){ $query[‘post_status’] … Read more
added_post_meta seems like a good time to hook into a new image. Not only is the default meta already set but the function gives you the $post_id along with $meta_value which holds the attachment metadata. From there you can get all the fields and set the ones you want. add_action(‘added_post_meta’, ‘wpse_20151219_after_post_meta’, 10, 4); function wpse_20151219_after_post_meta($meta_id, … Read more