How to get post bulk edit action trigger and get edited post ids?

Question

If your problem is:

I want to send email if a postmeta of a post is changed to the
expected value

Why do yous ask for:

How can i get the List of post id on bulk edit?

This is a typical x/y problem: when you have a problem, ask how to solve that problem, instead of asking ways to apply what you think is the solution…

Going in the details, you want to perform an action when a meta field is updated? Why don’t just look at.. the moment it is updated?

Everytime a post meta is updated, WordPress call the hook 'updated_postmeta' like so

do_action("updated_{$type}_meta", $meta_id, $object_id, $meta_key, $meta_value);

where $type is 'post'.

As you can see, you have enough informations to do anything you want.

Let’s assume you want to send a mail to the post author everytime the meta ‘send_mail’ is set to ‘ok’:

add_action( 'updated_post_meta', 'listen_to_meta_change', 20, 4 );

function listen_to_meta_change( $mid, $pid, $key, $value ) {
  if ( $key !== 'send_mail' ) return; // if the key is not the right one do nothing
  $value = maybe_unserialize( $value );
  if ( $value !== 'on' ) return; // if the value is not the right one do nothing
  // if we're here, the post meta 'send_mail' was set to 'on' for a post, let's get it
  $post = get_post( $pid );
  if ( $post->post_type !== 'post' ) return; // maybe check for a specific post type?
  $recipient = new WP_User( $post->post_author ); // get the post author
  if ( ! $recipient->exists() ) return; // check if is a valid user

  static $sended = array();
  if ( ! isset($sended[$recipient->ID]) ) $sended[$recipient->ID] = array();
  if ( isset($sended[$recipient->ID][$pid]) ) {
    // already sent email for this user & post & request: that's enough, let's exit
    return;
  }
  $sended[$recipient->ID][] = $pid;

  // ok, send the email, you can write the function, by yourself, isn't it?
  // be sure to have control on how many emails you send to an user:
  // too much emails slow down your site and also make you a spammer...
  // probably you can take control that using an user meta...
  send_email_to_user_when_meta_updated( $recipient );
}

Note that this code runs only when a meta is updated, and not when is added.

To run same code when the meta is also added, just add another action:

add_action( 'added_post_meta', 'listen_to_meta_change', 20, 4 );

Both hooks work in identical way, passing identical arguments, so no problem on using same function for both.

Related Posts: