even if you had included the all of the needed files you will still have to create your some extra hidden fields like _nonce to pass the check_ajax_referer( “set_post_thumbnail-$post_ID” ); also you would need to create an action hidden field to identify the case of Ajax call with the value : “set-post-thumbnail” You are better … Read more
Answers: Is post_guid the image location reference? Or is the path to the image stored somewhere else? $post->guid is the record in a post which holds the URL for your attachment. Where is featured image set? featured image is saved as post meta so use update_post_meta() once you have the attachment id: update_post_meta( $post->ID, ‘_thumbnail_id’, … Read more
<?php global $_wp_additional_image_sizes; print ‘<pre>’; print_r( $_wp_additional_image_sizes ); print ‘</pre>’;
There’s really no documentation for it yet, but you’ll probably be able to do it hooking to the attachment_fields_to_save filter and inserting the default caption there. From the Codex: attachment_fields_to_save applied to fields associated with an attachment prior to saving them in the database. Called in the media_upload_form_handler function. Filter function arguments: an array of … Read more
You can do this via, add_filter(‘image_send_to_editor’, ‘restrict_images’); function restrict_images($html){ return false; } …now consider the above function primitive, because it will restrict images for all post types. We can modify that on a post_type by post_type basis like so, add_filter(‘image_send_to_editor’, ‘restrict_images’); function restrict_images($html){ // check if its the admin trying to insert image, if so, … Read more
Let’s go and see. If I take arbitrary attachment in my dev install and dump its post object and custom fields I get the following: object WP_Post (24) { public ID -> integer 1687 public post_author -> string (1) “1” public post_date -> string (19) “2013-09-18 14:37:07” public post_date_gmt -> string (19) “2013-09-18 21:37:07” public … Read more
You can try the following test plugin, that uses the domDocument class, to see how it works on your HTML. It assumes PHP 5.4+ with LibXML 2.7.8+. <?php /** * Plugin Name: Add Missing Image Title Attributes * Description: For posts in the main loop (Assumes PHP 5.4+ with LibXML 2.7.8+) * Plugin URI: http://wordpress.stackexchange.com/a/188560/26350 … Read more
First of all i’d recommend you stop using title attribute for html container purpose: Image title (and the element name speaks for itself) should provide additional information and follow the rules of the regular title: it should be relevant, short, catchy, and concise (a title “offers advisory information about the element for which it is … Read more
You shouldn’t. srcset is used for when you want to optimise the quality for different devices by serving different sizes of the same image. If you want to serve different crops, you should be using the picture element instead. For example, if the intention of your image sizes is to serve a ‘small’ version to … Read more
Great question! WordPress lacks some of the higher level imaging management features that would make it file maintenance like you need so much easier. The core WordPress team has been threatening to add enhance image features for many versions; eventually they might actually do it! Until then you’ll have to use a patchwork of plugins … Read more