acme_story.php

<?php

// @todo Put an add_role() here

/**
 * Filter the author requests to only include scribe and art posts
 * @filter request
 * @todo Open up acme_art to be included on the author page when we open up art contributions to the public
 */
function _acme_filter_storyteller_author_request_to_only_include_story_posts( $request ){
	if( empty($request['author_name']) ){
		return $request;
	}
	$user = get_user_by('slug', $request['author_name']);
	if( !$user ){
		return $request;
	}
	
	$user = new WP_User($user->ID);
	if( in_array('acme_storyteller', $user->roles) ){
		$request['post_type'] = array(
			'acme_story',
		);
	}
	
	return $request;
}
if( !is_admin() ){
	add_filter( 'request', '_acme_filter_storyteller_author_request_to_only_include_story_posts', 100 );
}

avatar_filter.php

<?php

/**
 * Filter the avatar to show the Facebook picture
 * @filter get_avatar
 */
function _acme_get_gravatar_filter( $avatar, $id_or_email, $size, $default, $alt ){
	if( is_object($id_or_email) && isset($id_or_email->user_id) ){
		$id_or_email = $id_or_email->user_id;
	}
	if( !is_numeric($id_or_email) ){
		return $avatar;
	}
	$user = new WP_User($id_or_email);
	if( empty($user) || empty($user->ID) || empty($user->acme_facebook_uid) ){
		return $avatar;
	}
	
	$avatar = sprintf('<img src="%1$s" alt="%2$s" class="avatar avatar-%3$d" width="%3$d" />',
		esc_attr("http://graph.facebook.com/{$user->acme_facebook_uid}/picture?type=large"),
		esc_attr($user->display_name),
		$size
	); 
	return $avatar;
}
add_filter( 'get_avatar', '_acme_get_gravatar_filter', 100, 5 );

faq_redirects.php

<?php

/**
 * Filter post links for FAQ to link to permalink page anchor on FAQ index page
 * @filter post_link
 */
function _acme_filter_faq_post_link( $url, $post ){
	if( $post->post_type == 'acme_faq' ){
		$url = trailingslashit(get_home_url()) . 'faq/#' . $post->post_name;
	}
	return $url;
}
add_filter( 'post_link', '_acme_filter_faq_post_link', 10, 2 );


/**
 * Ensure that requests to single FAQs get directed to the FAQ page targeting the requested FAQ
 * @filter request
*/
function _acme_redirect_faq_to_faq_page( $request ){
	$is_needing_redirect = (
		isset($request['acme_faq'])
		&&
		!empty($request['name'])
		&&
		$request['name'] != 'feed'
	);
	if( $is_needing_redirect ){
		$url = trailingslashit(get_home_url()) . 'faq/#' . sanitize_title($request['name']);
		wp_redirect($url, 301);
		exit;
	}
	return $request;
}
add_action( 'request', '_acme_redirect_faq_to_faq_page' );