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Modify 'filter by author' function- use added user meta in label WordPress

  • SOLVED

Credit to Trevor Morris (http://forrst.com/posts/WordPress_Custom_Post_Types_Filter_by_Author_in-s9p#comment-581453) for this functionality that works brilliantly to show (in the posts list - for a custom post type - in the admin) a select menu displaying users' usernames and the value for each option is the user ID #. I would like to modify it to show an expanded user meta field ("company_name" in this case) as the option label. The user ID as the value for each can stay the same. Could anyone help with generating this? Thanks in advance!


function restrict_manage_authors() {
if (isset($_GET['post_type']) && post_type_exists($_GET['post_type']) && in_array(strtolower($_GET['post_type']), array('contestentry'))) {
wp_dropdown_users(array(
'show_option_all' => 'Members:',
'show_option_none' => false,
'name' => 'author',
'selected' => !empty($_GET['author']) ? $_GET['author'] : 0,
'include_selected' => false
));
}
}
add_action('restrict_manage_posts', 'restrict_manage_authors');

function custom_columns_author($columns) {
$columns['author'] = 'Author';
return $columns;
}
add_filter('manage_edit-contestentry_columns', 'custom_columns_author');

Answers (3)

2012-05-17

Gabriel Reguly answers:

Hi Adam,

You will need to filter the wp_dropdown_users result to replace the user name with the company name.

Something like this code


add_filter('wp_dropdown_users', 'wp_dropdown_users_filter');

function wp_dropdown_users_filter( $output ) {
// Here you will need to replace the option text, e.g. <option value="1">User name</option> becomes <option value="1">Company name</option>
return $output;
}


I can code it for you tomorrow.

Regards,
Gabriel




Adam Bundy comments:

Exactly! Thanks Gabriel. I'll look for your next post. Thanks


Gabriel Reguly comments:

function restrict_manage_authors() {

if (isset($_GET['post_type']) && post_type_exists($_GET['post_type']) && in_array(strtolower($_GET['post_type']), array('contestentry'))) {

wp_dropdown_users(array(

'show_option_all' => 'Members:',

'show_option_none' => false,

'name' => 'author',

'selected' => !empty($_GET['author']) ? $_GET['author'] : 0,

'include_selected' => false

));

}

}

add_action('restrict_manage_posts', 'restrict_manage_authors');



function custom_columns_author($columns) {

$columns['author'] = 'Author';

return $columns;

}

add_filter('manage_edit-contestentry_columns', 'custom_columns_author');

add_filter('wp_dropdown_users', 'wp_dropdown_users_modified');
function wp_dropdown_users_modified( $args = '' ) {
$siteusers = get_users('orderby=nicename&order=ASC'); // you can pass filters and option

$re = '';
$key = 'company_name'; // replave user meta field here
if (count($siteusers) > 0){
$re = '<select name="post_author_override" id="post_author_override">';
foreach ($siteusers as $user) {
$companyName = get_user_meta($user->ID, $key, true);
$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';
}
$re .= '</select>';

}
return $re;
}



Gabriel Reguly comments:

Sorry, last post was incorrectly submitted.

Please try this one:


function restrict_manage_authors() {

if (isset($_GET['post_type']) && post_type_exists($_GET['post_type']) && in_array(strtolower($_GET['post_type']), array('contestentry'))) {
wp_dropdown_users(array(
'show_option_all' => 'Members:',
'show_option_none' => false,
'name' => 'author',
'selected' => !empty($_GET['author']) ? $_GET['author'] : 0,
'include_selected' => false
));
}
}

add_action('restrict_manage_posts', 'restrict_manage_authors');


function custom_columns_author($columns) {
$columns['author'] = 'Author';
return $columns;
}

add_filter('manage_edit-contestentry_columns', 'custom_columns_author');

function wp_dropdown_users_modified( $args = '' ) {
$siteusers = get_users('orderby=nicename&order=ASC');
$re = '';
$key = 'company_name'; // replave user meta field here
if (count($siteusers) > 0){
$re = '<select name="author" id="post_author_override">';
foreach ($siteusers as $user) {
$companyName = get_user_meta($user->ID, $key, true);
if ( isset( $_GET['author'] ) && ( $user->ID == $_GET['author'] ) {
$re .= '<option value="' . $user->ID . '" selected="selected">'.$companyName.'</option>';
} else {
$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';
}
}
$re .= '</select>';
}
return $re;
}

add_filter('wp_dropdown_users', 'wp_dropdown_users_modified');




Hopefully this will do what you are looking for.

Regards,
Gabriel


Adam Bundy comments:

Gabriel,
Tried your above code, and ended up with white screen in the admin. It appears that maybe there's a syntax error in this if/then:


if ( isset( $_GET['author'] ) && ( $user->ID == $_GET['author'] ) {
$re .= '<option value="' . $user->ID . '" selected="selected">'.$companyName.'</option>';
} else {
$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';
}


??

Thanks!


Gabriel Reguly comments:

Hi,

Indeed, it was missing a ')'.

Follows amended code.


if ( isset( $_GET['author'] ) && ( $user->ID == $_GET['author'] ) ) {

$re .= '<option value="' . $user->ID . '" selected="selected">'.$companyName.'</option>';

} else {

$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';

}


Regards,
Gabriel


Adam Bundy comments:

Excellent! That worked Gabriel. Thank you. Thanks to you as well, Arnav.


Adam Bundy comments:

For the record, the final functions.php code ended up being:


function restrict_manage_authors() {

if (isset($_GET['post_type']) && post_type_exists($_GET['post_type']) && in_array(strtolower($_GET['post_type']), array('contestentry'))) {

wp_dropdown_users(array(
'show_option_all' => 'Members:',
'show_option_none' => false,
'name' => 'author',
'selected' => !empty($_GET['author']) ? $_GET['author'] : 0,
'include_selected' => false
));
}

}


add_action('restrict_manage_posts', 'restrict_manage_authors');

function custom_columns_author($columns) {
$columns['author'] = 'Author';
return $columns;
}

add_filter('manage_edit-contestentry_columns', 'custom_columns_author');

function wp_dropdown_users_modified( $args = '' ) {

$siteusers = get_users('orderby=nicename&order=ASC');
$re = '';
$key = 'acs_company_name';

if (count($siteusers) > 0){

$re = '<select name="author" id="post_author_override">';

foreach ($siteusers as $user) {

$companyName = get_user_meta($user->ID, $key, true);

if ( isset( $_GET['author'] ) && ( $user->ID == $_GET['author'] ) ) {
$re .= '<option value="' . $user->ID . '" selected="selected">'.$companyName.'</option>';
} else {
$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';
}
}

$re .= '</select>';

}
return $re;
}

add_filter('wp_dropdown_users', 'wp_dropdown_users_modified');

2012-05-15

S├ębastien | French WordpressDesigner answers:

not sure to understand...
the username must be replaced by the company name. That's it ?


Adam Bundy comments:

Yes, that's correct. I just want the label visible on the select menu to be the extended user meta with key "company_name" instead of the username. Thanks!


Adam Bundy comments:

To clarify, this will require a query within this loop of the extra meta field "company_name" for each user listed in the menu and make the text for each option element the company_name value instead of the username value. Make sense?


S├ębastien | French WordpressDesigner comments:

i don't understand : where is this menu ?


Adam Bundy comments:

Sebastien, this is a function that creates a select menu above the admin list of posts of type "Contest Entries". It filters the list of posts by author. The client would like to see the author's 'company_name' in the select menu rather than author username. Try the function in a test install to see what I mean.


Adam Bundy comments:

...of course, you wont have this post type established- you can test it under posts and I can change that here.

2012-05-17

Arnav Joy answers:

please try this code in functions.php

<?php

add_filter('wp_dropdown_users', 'wp_dropdown_users_modified');
function wp_dropdown_users_modified( $args = '' ) {
$siteusers = get_users('orderby=nicename&order=ASC'); // you can pass filters and option

$re = '';
$key = 'company_name'; // replave user meta field here
if (count($siteusers) > 0){
$re = '<select name="post_author_override" id="post_author_override">';
foreach ($siteusers as $user) {
$companyName = get_user_meta($user->ID, $key, true);
$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';
}
$re .= '</select>';

}
echo $re;
}

?>


Adam Bundy comments:

@Arnav, thanks much - could you place this into context amongst my code please?


Arnav Joy comments:

yes , please provide me details of admin or ftp


Adam Bundy comments:

Arnav, sorry, I meant just put it into my existing filter users function (as Gabriel did above), not just the custom portion for the company name. Thanks!


Arnav Joy comments:

try this

function restrict_manage_authors() {



if (isset($_GET['post_type']) && post_type_exists($_GET['post_type']) && in_array(strtolower($_GET['post_type']), array('page'))) {

wp_dropdown_users(array(

'show_option_all' => 'Members:',

'show_option_none' => false,

'name' => 'author',

'selected' => !empty($_GET['author']) ? $_GET['author'] : 0,

'include_selected' => false

));

}

}



add_action('restrict_manage_posts', 'restrict_manage_authors');





function custom_columns_author($columns) {

$columns['author'] = 'Author';

return $columns;

}



add_filter('manage_edit-contestentry_columns', 'custom_columns_author');



function wp_dropdown_users_modified( $args = '' ) {

$siteusers = get_users('orderby=nicename&order=ASC');

$re = '';

$key = 'company_name'; // replave user meta field here

if (count($siteusers) > 0){

$re = '<select name="author" id="post_author_override">';

foreach ($siteusers as $user) {

$companyName = get_user_meta($user->ID, $key, true);

if ( isset( $_GET['author'] ) && ( $user->ID == $_GET['author'] )) {

$re .= '<option value="' . $user->ID . '" selected="selected">'.$companyName.'</option>';

} else {

$re .= '<option value="' . $user->ID . '">'.$companyName.'</option>';

}

}

$re .= '</select>';

}

return $re;

}



add_filter('wp_dropdown_users', 'wp_dropdown_users_modified');