Using Helpful WordPress Plugin on archive pages

readme.md

Using Helpful on archive pages

With these two scripts Helpful can be used as short code on archive pages. Place the code in your functions.php to make it work.

In the first script the_content is manipulated and in the second script the_excerpt. Use what you have in use.

Quick tip: Use get_post_type( $post ) to check if a particular post type is in use.

the_content.php

<?php // functions.php

/**
 * Includes Helpful on archive pages if Helpful is not yet included. Uses the_content() filter of WordPress for this. 
 * 
 * @param string $content
 *
 * @return string
 */
add_filter( 'the_content', function( $content ) {
	global $post;

	if ( ! preg_match( '~[helpful~', $content ) && is_archive() ) {
		$content .= do_shortcode( sprintf( '[helpful post_id="%d"]', intval( $post->ID ) ) );
	}

	return $content;
});

the_excerpt.php

<?php // functions.php

/**
 * Includes Helpful on archive pages if Helpful is not yet included. Uses the_excerpt() filter of WordPress for this. 
 * 
 * @param string $excerpt
 * @param WP_Post $post
 *
 * @return string
 */
add_filter( 'get_the_excerpt', function( $excerpt, $post ) {

	if ( ! preg_match( '~[helpful~', $content ) && is_archive() ) {
		$content .= do_shortcode( sprintf( '[helpful post_id="%d"]', intval( $post->ID ) ) );
	}

	return $excerpt;
});