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/**
 * Replaces "Post" in the update messages for custom post types on the "Edit" post screen.
 *
 * For example, for a "Product" custom post type, "Post updated. View Post." becomes "Product updated. View Product".
 *
 * @param array $messages The default WordPress messages.
 */
function pico_custom_update_messages( $messages ) {
	global $post, $post_ID;

	$post_types = get_post_types( array( 'show_ui' => true, '_builtin' => false ), 'objects' );

	foreach( $post_types as $post_type => $post_object ) {

		$messages[$post_type] = array(
			0  => '', // Unused. Messages start at index 1.
			1  => sprintf( __( '%s updated. <a href="%s">View %s</a>' ), $post_object->labels->singular_name, esc_url( get_permalink( $post_ID ) ), $post_object->labels->singular_name ),
			2  => __( 'Custom field updated.' ),
			3  => __( 'Custom field deleted.' ),
			4  => sprintf( __( '%s updated.' ), $post_object->labels->singular_name ),
			5  => isset( $_GET['revision']) ? sprintf( __( '%s restored to revision from %s' ), $post_object->labels->singular_name, wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
			6  => sprintf( __( '%s published. <a href="%s">View %s</a>' ), $post_object->labels->singular_name, esc_url( get_permalink( $post_ID ) ), $post_object->labels->singular_name ),
			7  => sprintf( __( '%s saved.' ), $post_object->labels->singular_name ),
			8  => sprintf( __( '%s submitted. <a target="_blank" href="%s">Preview %s</a>'), $post_object->labels->singular_name, esc_url( add_query_arg( 'preview', 'true', get_permalink( $post_ID ) ) ), $post_object->labels->singular_name ),
			9  => sprintf( __( '%s scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview %s</a>'), $post_object->labels->singular_name, date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_date ) ), esc_url( get_permalink( $post_ID ) ), $post_object->labels->singular_name ),
			10 => sprintf( __( '%s draft updated. <a target="_blank" href="%s">Preview %s</a>'), $post_object->labels->singular_name, esc_url( add_query_arg( 'preview', 'true', get_permalink( $post_ID ) ) ), $post_object->labels->singular_name ),
			);
	}

	return $messages;
}
add_filter( 'post_updated_messages', 'eg_custom_update_messages' );