There is such plugin: Dynamic Image Resizer so you could give it a try. But… it’s old, not maintained since 2012-04-30 so I’m not sure if it still works. Normally when you upload an image to a WordPress site, it creates several differently sized versions of the image automatically. Themes can define custom image sizes … Read more
You should trigger the function on some other hook like function add_multiple_post_thumbnails_from_plugin() { new MultiPostThumbnails( array( ‘label’ => ‘Thumbnail Image’ ,’id’ => ‘video-thumbnail’ ,’post_type’ => ‘video’ ) ); } add_action( ‘admin_init’, ‘add_multiple_post_thumbnails_from_plugin’ );
Modify your function as such: // This theme displays custom size (page-single) featured image on the Post’s page function InsertFeaturedImage($content) { global $post; $original_content = $content; if ( current_theme_supports( ‘post-thumbnails’ ) ) { if ((is_page()) || (is_single())) { $content = get_the_image( array( ‘size’ => ‘full’ ) ); $content .= $original_content; } } return $content; } … Read more
First: why do you care the size of the thumbnail displayed in the “Featured Image” meta box on the Edit Post screen? Second: that image size isn’t defined by Twenty Ten (or any other Theme). It’s defined by core, and is actually simply calling the original image size, and scaling it. Edit Whoops; that was … Read more
From what I understand, you just want to have a thumb created at 120 x 120 when an image is uploaded using the new post type. Then use that image as the featured image on the custom post pages. Just add a new image size add_image_size( ‘companies_thumb’, 120, 120, true); Then in the post type … Read more
“Thumbnails” or “Featured” images are attachments with an entry in the $wpdb->postmeta table under the key _thumbnail_id. A couple of different action hooks run when entries are added to postmeta. I think that probably the one you want is updated_{$meta_type}_meta. In your case, updated_post_meta. Something like this: add_action( ‘updated_post_meta’, function ($meta_id, $object_id, $meta_key, $_meta_value ) … Read more
You’ve simply the wrong arguments (incl. the list of them). $caption, $title, $align, $url, $alt are too much in there. And $attr is missing. Not that it matters how you name the vars (as long as they start with a character), but it’s easier to read for later readers. function wpse76536_image_schema( $html, $post_id, $post_thumbnail_id, $size, … Read more
i’m looking for a more discrete and automatic approach. And that is altering the wp_create_thumbnail i think. And that is where you’d be wrong. Here is the entire code for wp_create_thumbnail() from core: function wp_create_thumbnail( $file, $max_side, $deprecated = ” ) { if ( !empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, ‘1.2’ ); $thumbpath = image_resize( … Read more
You need to send a custom query to get a list of posts. In this example we use a custom post type “project” and a custom taxonomy “sphere” and we get 1 next project in current sphere. In your use case you can increase posts_per_page to 4. <?php //remember the id and menu_order from current … Read more
What add_theme_support( ‘post-thumbnails’, array( ‘products’ ) ); did is: it added the support for the post-thumbnail feature, and with the second parameter you fixed the feature support to only post_type = ‘products’. But it actually saying: Ok, load all the necessary things to register a Post Thumbnail — you’re actually introducing ‘Post Thumbnail’ to WordPress. … Read more