list_terms_exclusions plugin

list_terms_exclusions

<?php
/*
 Plugin Name: Pancake v. 1.1
 Plugin URI: http://phpmaps.github.io/me/
 Description: Hides wordpress categories that Johnny finds annoying when working in the admin!
 Version: 1.1 rev 1 (Sea Gull)
 Author: Doogs
 Author URI: http://phpmaps.github.io/me/
 */
 
 /*
 Example CSV
1,Uncategorized
2,Blogroll
*/

add_action( 'admin_init', 'isAdminInit' );

define('PANCAKE_PLUGIN_DIR', plugin_dir_path(__FILE__));

define('PLUGIN_URL', WP_PLUGIN_URL."/".dirname(plugin_basename(__FILE__)));

function readCsvToArray($fullpath)
{
    $file = fopen($fullpath, 'r');
    
    $records = array();
    
    while (($line = fgetcsv($file)) !== FALSE) {
        
        $records[] = $line[0];
        
    }
    fclose($file);
    
    return $records;
}

function isAdminInit()
{
    add_filter( 'list_terms_exclusions', 'doCategoryExclusions', 10, 2 );

}

function doCategoryExclusions($exclusions,$args)
{
    
    $where = array();
    
    $csv = PANCAKE_PLUGIN_DIR . "terms.csv";
    
    $terms = readCsvToArray($csv);

    $exclusions = " AND ( t.term_id NOT IN (" . implode( ",", $terms ) . ") )";

    return $exclusions;
}