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How to limit author list by role - custom function WordPress

  • SOLVED

Hi,
I have a custom function written that lists authors and displays them in a list with their user photos, bio and other stuff. It displays all authors at all user levels/roles though and I need to filter it. Ideally I'd be able to pass a role parameter like you might in wp_list_authors. That way I could reuse this in several places. This is my function and a sample of the parameter I'd like to add:

<?php custom_list_authors(
'role' => administrator,contributor; ); ?>

SO they question is: Can someone write into this custom function the parameter that I can reuse when needed?

Here is the code for the custom function:

function custom_list_authors($args = '') {
global $wpdb;

$defaults = array(
'orderby' => 'name', 'order' => 'ASC', 'number' => '10',
'optioncount' => false, 'exclude_admin' => true,
'show_fullname' => false, 'hide_empty' => true,
'feed' => '', 'feed_image' => '', 'feed_type' => '', 'echo' => true,
'style' => 'list', 'html' => true
);

$args = wp_parse_args( $args, $defaults );
extract( $args, EXTR_SKIP );

$return = '';

$query_args = wp_array_slice_assoc( $args, array( 'orderby', 'order', 'number' ) );
$query_args['fields'] = 'ids';
$authors = get_users( $query_args );

$author_count = array();
foreach ( (array) $wpdb->get_results("SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE post_type = 'post' AND " . get_private_posts_cap_sql( 'post' ) . " GROUP BY post_author") as $row )
$author_count[$row->post_author] = $row->count;

foreach ( $authors as $author_id ) {
$author = get_userdata( $author_id );

if ( $exclude_admin && 'admin' == $author->display_name )
continue;

$posts = isset( $author_count[$author->ID] ) ? $author_count[$author->ID] : 0;

if ( !$posts && $hide_empty )
continue;

$link = '';

if ( $show_fullname && $author->first_name && $author->last_name )
$name = "$author->first_name $author->last_name";
else
$name = $author->display_name;

if ( !$html ) {
$return .= $name . ', ';

continue; // No need to go further to process HTML.
}

if ( 'list' == $style ) {
$return .= '<li>';
}

$link = '<p><a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '" title="' . esc_attr( sprintf(__("Posts by %s"), $author->display_name) ) . '">' . $name . '</a></p>' . "\n";

$link .= "<div class=\"image\">\n";
$link .= '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '">' . get_avatar( $author->ID, 23 ) . "</a>\n";
$link .= "</div>\n";

$link .= "<div class=\"box-inf\">\n";
$link .= "<div class=\"holder\">\n";
$link .= "<div class=\"frame\">\n";
$link .= "<div class=\"inf\">\n";
$link .= '<p><a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '">' . $name . "</a></p>\n";
$link .= "<div class=\"image\">\n";
$link .= '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '">' . get_avatar( $author->ID, 23 ) . "</a>\n";
$link .= "</div>\n";
$link .= '<span class="txt">' . get_the_author_meta('description', $author->ID) . "</span>\n";
$link .= "</div>\n";
$link .= "<div class=\"box-btn\">\n";
$link .= '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '"><span>Read Now</span></a>' . "\n";
$link .= "</div>\n";
$link .= "</div>\n";
$link .= "</div>\n";
$link .= "</div>\n";

if ( !empty( $feed_image ) || !empty( $feed ) ) {
$link .= ' ';
if ( empty( $feed_image ) ) {
$link .= '(';
}

$link .= '<a href="' . get_author_feed_link( $author->ID ) . '"';

$alt = $title = '';
if ( !empty( $feed ) ) {
$title = ' title="' . esc_attr( $feed ) . '"';
$alt = ' alt="' . esc_attr( $feed ) . '"';
$name = $feed;
$link .= $title;
}

$link .= '>';

if ( !empty( $feed_image ) )
$link .= '<img src="' . esc_url( $feed_image ) . '" style="border: none;"' . $alt . $title . ' />';
else
$link .= $name;

$link .= '</a>';

if ( empty( $feed_image ) )
$link .= ')';
}

if ( $optioncount )
$link .= ' ('. $posts . ')';

$return .= $link;
$return .= ( 'list' == $style ) ? "</li>\n" : ', ';
}

$return = rtrim($return, ', ');

if ( !$echo )
return $return;

echo $return;
}

2012-07-12 by dkraljic

Answers (3)

2012-07-12

Arnav Joy answers:

try this
<?php

function custom_list_authors($args = '',$role='') {

global $wpdb;



$defaults = array(

'orderby' => 'name', 'order' => 'ASC', 'number' => '10',

'optioncount' => false, 'exclude_admin' => true,

'show_fullname' => false, 'hide_empty' => true,

'feed' => '', 'feed_image' => '', 'feed_type' => '', 'echo' => true,

'style' => 'list', 'html' => true

);



$args = wp_parse_args( $args, $defaults );

extract( $args, EXTR_SKIP );



$return = '';



$query_args = wp_array_slice_assoc( $args, array( 'orderby', 'order', 'number' ) );

$query_args['fields'] = 'ids';

$query_args['role'] = $role;

$authors = get_users( $query_args );



$author_count = array();

foreach ( (array) $wpdb->get_results("SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE post_type = 'post' AND " . get_private_posts_cap_sql( 'post' ) . " GROUP BY post_author") as $row )

$author_count[$row->post_author] = $row->count;



foreach ( $authors as $author_id ) {

$author = get_userdata( $author_id );



if ( $exclude_admin && 'admin' == $author->display_name )

continue;



$posts = isset( $author_count[$author->ID] ) ? $author_count[$author->ID] : 0;



if ( !$posts && $hide_empty )

continue;



$link = '';



if ( $show_fullname && $author->first_name && $author->last_name )

$name = "$author->first_name $author->last_name";

else

$name = $author->display_name;



if ( !$html ) {

$return .= $name . ', ';



continue; // No need to go further to process HTML.

}



if ( 'list' == $style ) {

$return .= '<li>';

}



$link = '<p><a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '" title="' . esc_attr( sprintf(__("Posts by %s"), $author->display_name) ) . '">' . $name . '</a></p>' . "\n";



$link .= "<div class=\"image\">\n";

$link .= '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '">' . get_avatar( $author->ID, 23 ) . "</a>\n";

$link .= "</div>\n";



$link .= "<div class=\"box-inf\">\n";

$link .= "<div class=\"holder\">\n";

$link .= "<div class=\"frame\">\n";

$link .= "<div class=\"inf\">\n";

$link .= '<p><a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '">' . $name . "</a></p>\n";

$link .= "<div class=\"image\">\n";

$link .= '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '">' . get_avatar( $author->ID, 23 ) . "</a>\n";

$link .= "</div>\n";

$link .= '<span class="txt">' . get_the_author_meta('description', $author->ID) . "</span>\n";

$link .= "</div>\n";

$link .= "<div class=\"box-btn\">\n";

$link .= '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '"><span>Read Now</span></a>' . "\n";

$link .= "</div>\n";

$link .= "</div>\n";

$link .= "</div>\n";

$link .= "</div>\n";



if ( !empty( $feed_image ) || !empty( $feed ) ) {

$link .= ' ';

if ( empty( $feed_image ) ) {

$link .= '(';

}



$link .= '<a href="' . get_author_feed_link( $author->ID ) . '"';



$alt = $title = '';

if ( !empty( $feed ) ) {

$title = ' title="' . esc_attr( $feed ) . '"';

$alt = ' alt="' . esc_attr( $feed ) . '"';

$name = $feed;

$link .= $title;

}



$link .= '>';



if ( !empty( $feed_image ) )

$link .= '<img src="' . esc_url( $feed_image ) . '" style="border: none;"' . $alt . $title . ' />';

else

$link .= $name;



$link .= '</a>';



if ( empty( $feed_image ) )

$link .= ')';

}



if ( $optioncount )

$link .= ' ('. $posts . ')';



$return .= $link;

$return .= ( 'list' == $style ) ? "</li>\n" : ', ';

}



$return = rtrim($return, ', ');



if ( !$echo )

return $return;



echo $return;

}


?>

<?php custom_list_authors($args ,'administrator'); ?>

then use it as

dkraljic comments:

Hey Thanks! worked great!

I'll have another similar question shortly I bet you could help out with.

2012-07-12

John Cotton answers:

get_users supports a role argument - you can check it out here:

http://codex.wordpress.org/Function_Reference/get_users

2012-07-12

Sabby Sam answers:

Hi,
Can you try to use this plugins :
http://wordpress.org/extend/plugins/author-profiles/

or use this one

http://webinsolution.com/plugins/wordpress-author-profile-avatars

If you don't understand than drop an email me at [email protected], this above plugin is developed by me.
Hope the above plugin will help you.