Examples

Post

Add Gallery category to every post with [gallery] shortcode

function find_gallery_posts() {
	register_batch_process( array(
		'name' => 'Convert Gallery Posts',
		'type' => 'post',
		'args' => array(
			'post_type' => 'post',
		),
		'callback' => 'add_gallery_category',
	) );
}
add_action( 'locomotive_init', 'find_gallery_posts' );

function add_gallery_category( $post ) {

	if ( strpos( $post->post_content, '[gallery' ) !== false ) {
		wp_set_object_terms( $post->ID, 'gallery', 'category', true );
	}

}

Change from one Custom Post Type to another

function change_custom_post_type_process() {
	register_batch_process( array(
		'name' => 'Change Custom Post Type',
		'type' => 'post',
		'args' => array(
			'post_type' => 'original-post-type'
		),
		'callback' => 'process_post_type_change',
	) );
}
add_action( 'locomotive_init', 'change_custom_post_type_process' );

function process_post_type_change( $post ) {

	set_post_type( $post->ID, 'new-post-type' );

}

User

Reset all user passwords

function register_user_password_reset() {
	register_batch_process( array(
		'name' => 'Reset all passwords',
		'type' => 'user',
		'callback' => 'reset_user_password',
		'args' => array(
			'offset' => 0
		)
	) );
}
add_action( 'locomotive_init', 'register_user_password_reset' );

function reset_user_password( $user ) {

	// Ensure that current user is not included.
	if( $user->ID !== get_current_user_id() ) {

		// Turn off reset password admin emails.
		add_filter( 'send_password_change_email', '__return_false' );
		$newpass = wp_generate_password();
		wp_update_user( array( 'ID' => $user->ID, 'user_pass' => $newpass ) );

	}

}

Comments

Delete all spam comments

function process_spam_comments() {
	register_batch_process( array(
		'name' => ‘Delete All Spam Comments',
		'type' => 'comment',
		'args' => array(
			'status' => 'spam',
		),
		'callback' => 'delete_comment_if_spam',
	) );
}
add_action( 'locomotive_init', 'process_spam_comments' );

function delete_comment_if_spam( $comment ) {

	wp_delete_comment( $comment->comment_ID, true );

}

Move all unapproved comments to approved

function process_unapproved_comments() {
	register_batch_process( array(
		'name' => 'Move Approved Comments',
		'type' => 'comment',
		'args' => array(
			'status' => 'hold',
		),
		'callback' => 'move_unapproved_comment',
	) );
}
add_action( 'locomotive_init', 'process_unapproved_comments' );

function move_unapproved_comment( $comment ) {

	wp_set_comment_status( $comment->comment_ID, 'approve' );

}

Terms

Prepend text to all categories

function get_all_categories() {
	register_batch_process( array(
		'name' => 'Move Approved Comments',
		'type' => 'term',
		'args' => array(
			'taxonomy' => 'category',
		),
		'callback' => 'prepend_text_to_category',
	) );
}
add_action( 'locomotive_init', 'get_all_categories' );

function prepend_text_to_category( $category ) {

	$new_name = 'This is: ' . esc_attr( $category->name );
	
	wp_update_term( $category->term_id, 'category', array(
			'name' => $new_name,
	) );

}