functions.php

<?php

// https://gist.github.com/vxnick/380904
$country_picker = array(
  'AF' => 'Afghanistan',
  'AX' => 'Aland Islands',
  'AL' => 'Albania',
  'DZ' => 'Algeria',
  'AS' => 'American Samoa',
  'AD' => 'Andorra',
  'AO' => 'Angola',
  'AI' => 'Anguilla',
  'AQ' => 'Antarctica',
  'AG' => 'Antigua And Barbuda',
  'AR' => 'Argentina',
  'AM' => 'Armenia',
  'AW' => 'Aruba',
  'AU' => 'Australia',
  'AT' => 'Austria',
  'AZ' => 'Azerbaijan',
  'BS' => 'Bahamas',
  'BH' => 'Bahrain',
  'BD' => 'Bangladesh',
  'BB' => 'Barbados',
  'BY' => 'Belarus',
  'BE' => 'Belgium',
  'BZ' => 'Belize',
  'BJ' => 'Benin',
  'BM' => 'Bermuda',
  'BT' => 'Bhutan',
  'BO' => 'Bolivia',
  'BA' => 'Bosnia And Herzegovina',
  'BW' => 'Botswana',
  'BV' => 'Bouvet Island',
  'BR' => 'Brazil',
  'IO' => 'British Indian Ocean Territory',
  'BN' => 'Brunei Darussalam',
  'BG' => 'Bulgaria',
  'BF' => 'Burkina Faso',
  'BI' => 'Burundi',
  'KH' => 'Cambodia',
  'CM' => 'Cameroon',
  'CA' => 'Canada',
  'CV' => 'Cape Verde',
  'KY' => 'Cayman Islands',
  'CF' => 'Central African Republic',
  'TD' => 'Chad',
  'CL' => 'Chile',
  'CN' => 'China',
  'CX' => 'Christmas Island',
  'CC' => 'Cocos (Keeling) Islands',
  'CO' => 'Colombia',
  'KM' => 'Comoros',
  'CG' => 'Congo',
  'CD' => 'Congo, Democratic Republic',
  'CK' => 'Cook Islands',
  'CR' => 'Costa Rica',
  'CI' => 'Cote D\'Ivoire',
  'HR' => 'Croatia',
  'CU' => 'Cuba',
  'CY' => 'Cyprus',
  'CZ' => 'Czech Republic',
  'DK' => 'Denmark',
  'DJ' => 'Djibouti',
  'DM' => 'Dominica',
  'DO' => 'Dominican Republic',
  'EC' => 'Ecuador',
  'EG' => 'Egypt',
  'SV' => 'El Salvador',
  'GQ' => 'Equatorial Guinea',
  'ER' => 'Eritrea',
  'EE' => 'Estonia',
  'ET' => 'Ethiopia',
  'FK' => 'Falkland Islands (Malvinas)',
  'FO' => 'Faroe Islands',
  'FJ' => 'Fiji',
  'FI' => 'Finland',
  'FR' => 'France',
  'GF' => 'French Guiana',
  'PF' => 'French Polynesia',
  'TF' => 'French Southern Territories',
  'GA' => 'Gabon',
  'GM' => 'Gambia',
  'GE' => 'Georgia',
  'DE' => 'Germany',
  'GH' => 'Ghana',
  'GI' => 'Gibraltar',
  'GR' => 'Greece',
  'GL' => 'Greenland',
  'GD' => 'Grenada',
  'GP' => 'Guadeloupe',
  'GU' => 'Guam',
  'GT' => 'Guatemala',
  'GG' => 'Guernsey',
  'GN' => 'Guinea',
  'GW' => 'Guinea-Bissau',
  'GY' => 'Guyana',
  'HT' => 'Haiti',
  'HM' => 'Heard Island & Mcdonald Islands',
  'VA' => 'Holy See (Vatican City State)',
  'HN' => 'Honduras',
  'HK' => 'Hong Kong',
  'HU' => 'Hungary',
  'IS' => 'Iceland',
  'IN' => 'India',
  'ID' => 'Indonesia',
  'IR' => 'Iran, Islamic Republic Of',
  'IQ' => 'Iraq',
  'IE' => 'Ireland',
  'IM' => 'Isle Of Man',
  'IL' => 'Israel',
  'IT' => 'Italy',
  'JM' => 'Jamaica',
  'JP' => 'Japan',
  'JE' => 'Jersey',
  'JO' => 'Jordan',
  'KZ' => 'Kazakhstan',
  'KE' => 'Kenya',
  'KI' => 'Kiribati',
  'KR' => 'Korea',
  'KW' => 'Kuwait',
  'KG' => 'Kyrgyzstan',
  'LA' => 'Lao People\'s Democratic Republic',
  'LV' => 'Latvia',
  'LB' => 'Lebanon',
  'LS' => 'Lesotho',
  'LR' => 'Liberia',
  'LY' => 'Libyan Arab Jamahiriya',
  'LI' => 'Liechtenstein',
  'LT' => 'Lithuania',
  'LU' => 'Luxembourg',
  'MO' => 'Macao',
  'MK' => 'Macedonia',
  'MG' => 'Madagascar',
  'MW' => 'Malawi',
  'MY' => 'Malaysia',
  'MV' => 'Maldives',
  'ML' => 'Mali',
  'MT' => 'Malta',
  'MH' => 'Marshall Islands',
  'MQ' => 'Martinique',
  'MR' => 'Mauritania',
  'MU' => 'Mauritius',
  'YT' => 'Mayotte',
  'MX' => 'Mexico',
  'FM' => 'Micronesia, Federated States Of',
  'MD' => 'Moldova',
  'MC' => 'Monaco',
  'MN' => 'Mongolia',
  'ME' => 'Montenegro',
  'MS' => 'Montserrat',
  'MA' => 'Morocco',
  'MZ' => 'Mozambique',
  'MM' => 'Myanmar',
  'NA' => 'Namibia',
  'NR' => 'Nauru',
  'NP' => 'Nepal',
  'NL' => 'Netherlands',
  'AN' => 'Netherlands Antilles',
  'NC' => 'New Caledonia',
  'NZ' => 'New Zealand',
  'NI' => 'Nicaragua',
  'NE' => 'Niger',
  'NG' => 'Nigeria',
  'NU' => 'Niue',
  'NF' => 'Norfolk Island',
  'MP' => 'Northern Mariana Islands',
  'NO' => 'Norway',
  'OM' => 'Oman',
  'PK' => 'Pakistan',
  'PW' => 'Palau',
  'PS' => 'Palestinian Territory, Occupied',
  'PA' => 'Panama',
  'PG' => 'Papua New Guinea',
  'PY' => 'Paraguay',
  'PE' => 'Peru',
  'PH' => 'Philippines',
  'PN' => 'Pitcairn',
  'PL' => 'Poland',
  'PT' => 'Portugal',
  'PR' => 'Puerto Rico',
  'QA' => 'Qatar',
  'RE' => 'Reunion',
  'RO' => 'Romania',
  'RU' => 'Russian Federation',
  'RW' => 'Rwanda',
  'BL' => 'Saint Barthelemy',
  'SH' => 'Saint Helena',
  'KN' => 'Saint Kitts And Nevis',
  'LC' => 'Saint Lucia',
  'MF' => 'Saint Martin',
  'PM' => 'Saint Pierre And Miquelon',
  'VC' => 'Saint Vincent And Grenadines',
  'WS' => 'Samoa',
  'SM' => 'San Marino',
  'ST' => 'Sao Tome And Principe',
  'SA' => 'Saudi Arabia',
  'SN' => 'Senegal',
  'RS' => 'Serbia',
  'SC' => 'Seychelles',
  'SL' => 'Sierra Leone',
  'SG' => 'Singapore',
  'SK' => 'Slovakia',
  'SI' => 'Slovenia',
  'SB' => 'Solomon Islands',
  'SO' => 'Somalia',
  'ZA' => 'South Africa',
  'GS' => 'South Georgia And Sandwich Isl.',
  'ES' => 'Spain',
  'LK' => 'Sri Lanka',
  'SD' => 'Sudan',
  'SR' => 'Suriname',
  'SJ' => 'Svalbard And Jan Mayen',
  'SZ' => 'Swaziland',
  'SE' => 'Sweden',
  'CH' => 'Switzerland',
  'SY' => 'Syrian Arab Republic',
  'TW' => 'Taiwan',
  'TJ' => 'Tajikistan',
  'TZ' => 'Tanzania',
  'TH' => 'Thailand',
  'TL' => 'Timor-Leste',
  'TG' => 'Togo',
  'TK' => 'Tokelau',
  'TO' => 'Tonga',
  'TT' => 'Trinidad And Tobago',
  'TN' => 'Tunisia',
  'TR' => 'Turkey',
  'TM' => 'Turkmenistan',
  'TC' => 'Turks And Caicos Islands',
  'TV' => 'Tuvalu',
  'UG' => 'Uganda',
  'UA' => 'Ukraine',
  'AE' => 'United Arab Emirates',
  'GB' => 'United Kingdom',
  'US' => 'United States',
  'UM' => 'United States Outlying Islands',
  'UY' => 'Uruguay',
  'UZ' => 'Uzbekistan',
  'VU' => 'Vanuatu',
  'VE' => 'Venezuela',
  'VN' => 'Viet Nam',
  'VG' => 'Virgin Islands, British',
  'VI' => 'Virgin Islands, U.S.',
  'WF' => 'Wallis And Futuna',
  'EH' => 'Western Sahara',
  'YE' => 'Yemen',
  'ZM' => 'Zambia',
  'ZW' => 'Zimbabwe',
);

function oeru_theme_defaults() {
  global $wp_rewrite;

  $wp_rewrite->set_permalink_structure( '/%postname%/' );
  $wp_rewrite->flush_rules();
}
add_action( 'after_switch_theme', 'oeru_theme_defaults' );
add_action( 'wp_install', 'oeru_theme_defaults' );

function oeru_theme_menu_default() {
  if(!get_option("oeru_theme_menu_create")){
    require_once("inc/theme_guidance.php");
    $menu_id = oeru_theme_create_menu();
    if($menu_id == false){
      wp_delete_nav_menu("OERu Import Menu");
      $menu_id = oeru_theme_create_menu();
    }
    oeru_theme_menu_hierarchy($menu_id, 0, 0);
    $locations = get_theme_mod('nav_menu_locations');
    $locations['primary'] = $menu_id;
    set_theme_mod('nav_menu_locations', $locations);
    add_option("oeru_theme_menu_create", "true");
  }
}
add_action( 'admin_head', 'oeru_theme_menu_default' );

function oeru_theme_widgets_init() {
  register_sidebar( array(
    'name'          => __( 'Widget Area', 'oeru_theme' ),
    'id'            => 'sidebar-1',
    'description'   => __( 'Add widgets here to appear in your sidebar.', 'oeru_theme' ),
    'before_widget' => '<aside id="%1$s" class="widget %2$s">',
    'after_widget'  => '</aside>',
    'before_title'  => '<h2 class="widget-title">',
    'after_title'   => '</h2>',
  ) );
  unregister_sidebar( 'sidebar-1' );
}
add_action( 'widgets_init', 'oeru_theme_widgets_init' );

function oeru_theme_setup() {
  if(!get_option("oeru_course_colour_profile_setup")){
    require_once("inc/install_profile.php");
    add_option("oeru_course_colour_profile_setup", "true");
  }
  load_theme_textdomain( 'oeru_theme', get_template_directory() . '/languages' );
  add_theme_support( 'post-thumbnails' );
  $chargs = array(
    'width' => 980,
    'height' => 150,
    'uploads' => true,
  );
  add_theme_support( 'custom-header', $chargs );
  set_post_thumbnail_size( 672, 372, true );
  register_nav_menus( array(
    'primary'   => __( 'Top primary menu', 'oeru_theme' ),
  ) );
  add_theme_support( 'html5', array(
    'search-form', 'comment-form', 'comment-list', 'gallery', 'caption'
  ) );
}
add_action( 'after_setup_theme', 'oeru_theme_setup' );

function oeru_theme_add_category() {
  $catarr = array(
    'cat_name' => "Front Page Featured",
    'category_description' => "Items to feature on the front page",
    'category_nicename' => "front-page",
    'taxonomy' => 'category'
  );
  wp_insert_term("Front Page", "category", $catarr);
}

add_action( 'after_setup_theme', 'oeru_theme_add_category' );

function oeru_theme_scripts_and_styles() {
  wp_enqueue_style( 'wordpress-oeru-theme-bootstrap', get_template_directory_uri() . '/css/bootstrap.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-font-awesome', get_template_directory_uri() . '/css/font-awesome.min.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-layout', get_template_directory_uri() . '/css/layout.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-typography', get_template_directory_uri() . '/css/typography.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-colours', get_template_directory_uri() . '/css/colours.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-core-alter', get_template_directory_uri() . '/css/oeru_theme_core_alter.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-jquery-ui', get_template_directory_uri() . '/css/jquery-ui.min.css', array(), '1' );
  wp_enqueue_style( 'wordpress-oeru-theme-open-sans-font', '//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,800,700,600&subset=latin,greek-ext,greek,cyrillic,latin-ext,vietnamese,cyrillic-ext', array(), '1' );

  wp_enqueue_script( 'wordpress-oeru_theme-bootstrap', get_template_directory_uri() . '/js/bootstrap.min.js', array('jquery'), '20131205', true );
  if ( get_theme_mod( 'swipe' ) === 'on' ) {
    wp_enqueue_script( 'wordpress-oeru_theme-swipe', get_template_directory_uri() . '/js/jquery.touchSwipe.min.js', array('jquery'), '20131205', true );
  }
  wp_enqueue_script( 'wordpress-oeru_theme-scroll', get_template_directory_uri() . '/js/wikieducatorjs/scroll.js', array('jquery'), '20131205', true );
  if(get_theme_mod("menu_depth")!="two"){
    wp_enqueue_script( 'wordpress-oeru_theme-menu-fix', get_template_directory_uri() . '/js/wikieducatorjs/menu-fix.js', array('jquery'), '20131205', true );
  }
  wp_enqueue_script( 'wordpress-oeru_theme-feedback', get_template_directory_uri() . '/js/wikieducatorjs/oeru_feedback.js', array('jquery'), '20131205', true );
  wp_enqueue_script( 'wordpress-oeru_theme-details-fix', get_template_directory_uri() . '/js/wikieducatorjs/oeru_details_fix.js', array('jquery'), '20131205', true );
  wp_enqueue_script( 'jquery-ui-accordion');
  wp_enqueue_script( 'wordpress-oeru_theme-accordion', get_template_directory_uri() . '/js/wikieducatorjs/oeru_accordion.js', array('jquery-ui-accordion'), '20131205', true );
  wp_enqueue_script( 'wordpress-oeru_theme-mcq', get_template_directory_uri() . '/js/wikieducatorjs/oeru_mcq.js', array('jquery'), '20131205', true );
  wp_enqueue_script( 'wordpress-oeru_theme-mtq', get_template_directory_uri() . '/js/wikieducatorjs/oeru_mtq.js', array('jquery'), '20131205', true );
  wp_enqueue_script( 'wordpress-oeru_theme-fitb_shortcode', get_template_directory_uri() . '/js/wikieducatorjs/oeru_fitb.js', array('jquery'), '20131205', true );
  wp_localize_script( 'wordpress-oeru_theme-fitb_shortcode', 'wordpress_oeru_theme_fitb_shortcode', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ), 'answerNonce' => wp_create_nonce( 'oeru_fitb_check' ) ) );

  if (get_theme_mod('log_on_page') == 'on') {
    wp_enqueue_script( 'wordpress-oeru_user', get_template_directory_uri() . '/js/wikieducatorjs/oeru_user.js', array('jquery'), '20160305', true );
    wp_localize_script( 'wordpress-oeru_user', 'oeru_user_object', array(
      'ajaxurl' => admin_url('admin-ajax.php')
    ));
  }
}
add_action( 'wp_enqueue_scripts', 'oeru_theme_scripts_and_styles' );

function oeru_admin_theme_scripts_and_styles() {
  wp_enqueue_style( 'wordpress-oeru-theme-admin', get_template_directory_uri() . '/css/oeru_theme_admin.css', array(), '1' );
}
add_action( 'admin_enqueue_scripts', 'oeru_admin_theme_scripts_and_styles' );

// add XMLRPC options
add_filter( 'xmlrpc_blog_options', function( $xmlrpc_options ) {
  if (is_array($xmlrpc_options)) {
    $xmlrpc_options['show_on_front'] = array(
      'desc'      => __( 'Show on front' ),
      'readonly'  => false,
      'option'    => 'show_on_front'
    );
    $xmlrpc_options['page_on_front'] = array(
      'desc'      => __( 'Page to show on front page' ),
      'readonly'  => false,
      'option'    => 'page_on_front'
    );
    $xmlrpc_options['oeru_theme_menu_create'] = array(
      'desc'      => __( 'Create the OERu top menu' ),
      'readonly'  => false,
      'option'    => 'oeru_theme_menu_create'
    );
    $xmlrpc_options['oeru_theme_scan_page_html'] = array(
      'desc'      => __( 'HTML for the scan page' ),
      'readonly'  => false,
      'option'    => 'oeru_theme_scan_page_html'
    );
    $xmlrpc_options['oeru_theme_scan_page'] = array(
      'desc'      => __( 'Turn the Scan Page on' ),
      'readonly'  => false,
      'option'    => 'oeru_theme_scan_page'
    );
    $xmlrpc_options['oeru_theme_footer'] = array(
      'desc'      => __( 'Footer content' ),
      'readonly'  => false,
      'option'    => 'oeru_theme_footer'
    );
  }
  return $xmlrpc_options;
});

// allow IFRAME in network WordPress
// FIXME this really isn't a theme-specific issue,
//       this should probably be a separate plugin for any network install
function oeru_theme_allow_iframe( $allowedposttags ) {
  if ( !current_user_can( 'publish_posts' ) ) {
    return $allowedposttags;
  }

  $allowedposttags['iframe'] = array(
    'align' => true,
    'width' => true,
    'height' => true,
    'frameborder' => true,
    'name' => true,
    'src' => true,
    'id' => true,
    'class' => true,
    'style' => true,
    'scrolling' => true,
    'marginwidth' => true,
    'marginheight' => true,
    'allowfullscreen' => true,
  );
  return $allowedposttags;
}
add_filter( 'wp_kses_allowed_html', 'oeru_theme_allow_iframe' );

/*
 * Add registration/user field: usercountry
 * see http://www.setupmyvps.com/how-to-add-a-custom-field-to-wordpress-registration/
 */
add_action('register_form', 'oeru_show_country_field', 10, 1);

// Create the country picker form
function oeru_show_country_field($selection = "") {
  global $country_picker;

  //echo "country = $selection";
  //$user_country = ( isset( $_POST['usercountry'] ) ) ? $_POST['usercountry']: "";
  $user_country = ( $selection != "" ) ? $selection : "Nothing"; ?>

    <select name="usercountry" class="form-control" id="usercountry">
        <option value=""></option>
        <?php foreach($country_picker as $abbr => $country) {
            if ($user_country == $abbr) {
                $selected = 'selected="true"';
            }
            else {
                $selected = '';
            }
            echo '<option value="' . $abbr . '" ' . $selected . '>' . $country . '</option>';
        } ?>
    </select>
<?php
}


/* AJAX login/update API
 * called with 'bdo' set to 'login', 'register', or 'update'
 */
add_action('wp_ajax_oerulogin', 'oeru_login');
add_action('wp_ajax_nopriv_oerulogin', 'oeru_login');
function oeru_login_response($a) {
  echo json_encode($a);
  die();
}

function oeru_login() {
  check_ajax_referer('oeru_user_nonce', 'security');

  $blogid = get_current_blog_id();
  $bdo = (isset($_POST['do'])) ? $_POST['do'] : '';
  switch ($bdo) {
    case 'login':
      $uin = array(
        'user_login' => $_POST['username'],
        'user_password' => $_POST['password'],
        'remember' => true
      );
      $ouser = wp_signon($uin, false);
      if (is_wp_error($ouser)) {
        oeru_login_response(array(
          'loggedin' => false,
          'result' => $ouser->get_error_message()
        ));
      } else {
        oeru_login_response(array(
          'loggedin' => true,
          'result' => 'Logged in, redirecting...'
        ));
      }
      break;
    case 'register':
      $password = trim($_POST['password']);
      $cpw = trim($_POST['confirmpassword']);
      $username = trim($_POST['username']);
      $email = trim($_POST['useremail']);
      $display_name = sanitize_text_field($_POST['name']);
      $meta = array(
        "usercountry" => $_POST['usercountry']
      );
      if (strlen($password) == 0 || strlen($cpw) == 0 || strlen($username) == 0 || strlen($email) == 0) {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'Username, password(s), and email are required.'
        ));
      }
      if (strlen($password) < 2) {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'Password must be at least 6 characters.'
        ));
      }
      if ($password != $cpw) {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'Passwords do not match.'
        ));
      }
      $pw = trim($_POST['password']);
      $r = wpmu_validate_user_signup($username, $email);
      $username = $r['user_name'];  // sanitized username
      if ($meta['usercountry'] == "") {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'You must select a country. (not ' . $_POST['usercountry'] . ')...'
        ));
      }
      if (sizeof($r['errors']->errors) > 0) {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'validate: ' . $r['errors']->get_error_message()
        ));
      }
      $user_id = wpmu_create_user($username, $password, $email);
      if ($user_id === false) {
        oeru_login_response(array(
          'registered' => false,
          'result' => "Unable to create user: $username"
        ));
      }
      $r = add_user_to_blog(get_current_blog_id(), $user_id, 'subscriber');
      if (is_wp_error($r)) {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'addtoblog: ' . $r->get_error_message()
        ));
      }
      $credentials = array(
        'user_login' => $username,
        'user_password' => $password,
        'remember' => true
      );
      $user = wp_signon($credentials, false);
      if (is_wp_error($user)) {
        oeru_login_response(array(
          'registered' => false,
          'result' => 'signon: ' . $user->get_error_message()
        ));
      }
      wp_set_current_user($user_id);
      wp_set_auth_cookie($user_id);
      wp_update_user(array(
        'ID' => $user_id,
        'display_name' => $display_name
      ));
            // save all the relevant user meta data
      foreach($meta as $k => $v) {
        update_user_meta($user_id, $k, $v);
      }
            // update Mautic - moved to Mautic plug-in!
            //require_once 'mautic-api-library/lib/MauticApi.php';
            //$oeru_config = parse_ini_file('config/oeru_course.conf');
            // end of Mautic stuff
      oeru_login_response(array(
        'registered' => true,
        'result' => 'Registered, redirecting...'
      ));
      break;
    case 'update':
      $current_user = wp_get_current_user();
      if ($current_user->ID == 0) {
        oeru_login_response(array(
          'updated' => false,
          'result' => 'Not logged in.'
        ));
      }
      $user_id = $current_user->ID;
      $email = (trim($_POST['useremail'])) ? trim($_POST['useremail']) : $current_user->email;
      $display_name = (sanitize_text_field($_POST['name'])) ? sanitize_text_field($_POST['name']) : $current_user->display_name;
      $user_id = wp_update_user(array(
        'ID' => $user_id,
        'email' => $email,
        'display_name' => $display_name
      ));
      if (is_wp_error($user_id)) {
        oeru_login_response(array(
          'updated' => false,
          'result' => 'Error updating name and email. Please try later.'
        ));
      }
      if ($_POST['usercountry'] == "") {
        oeru_login_response(array(
          'updated' => false,
          'result' => 'You must select a country.'
        ));
      }
      else {
        update_user_meta($user_id, "usercountry", $_POST['usercountry']);
      }
      oeru_login_response(array(
        'updated' => true,
        'result' => 'Updated.'
      ));
      break;
    default:
      oeru_login_response(array(
        'error' => 'Ill-formed login request:  ' . htmlspecialchars($bdo)
      ));
  }
  die();
}

// add JSON REST API retrieval of course registrations
//   user meta entries of the form url_nn where nn is the WP site number
function register_user_courses_field() {
    register_rest_field( 'user',
        'courses',
        array (
            'get_callback'    => 'get_courses_field',
            'update_callback' => null,  // read-only for now
            'schema'          => null,
        )
    );
}

function get_courses_field( $object, $field_name, $request ) {
  $meta = get_user_meta( $object['id'] );
  $meta = array_filter(
    array_map( function( $a ) { return $a[0]; }, $meta ),
    function( $k ) { return substr( $k, 0, 4 ) === 'url_'; },
    ARRAY_FILTER_USE_KEY
  );
  return $meta;
}
add_action( 'rest_api_init', 'register_user_courses_field' );

// all users, not just those that have published posts
function custom_rest_user_query( $prepared_args, $request = null ) {
  unset($prepared_args['has_published_posts']);
  return $prepared_args;
}
add_filter( 'rest_user_query' , 'custom_rest_user_query' );

function add_user_blog_column( $columns ) {
  $columns['xname'] = 'Name'; // user display_name (not first, last)
  $columns['blog'] = 'Blog';

  unset( $columns['name'] );
  unset( $columns['role'] );
  unset( $columns['posts'] );
  return $columns;
}
add_filter( 'manage_users_columns', 'add_user_blog_column' );

function add_blog_column_data( $v = '', $column_name, $user_id ) {
  switch ($column_name) {
    case 'xname':
      $user_info = get_userdata( $user_id );
      return $user_info->display_name;
    case 'blog':
      $k = 'url_' . get_current_blog_id();
      return get_user_meta( $user_id, $k, true );
  }
}
add_filter( 'manage_users_custom_column', 'add_blog_column_data', 10, 3 );

if (!current_user_can('edit_posts')) {
  show_admin_bar(false);
}

// Custom template tags for this theme.
require get_template_directory() . '/inc/template-tags.php';

// Add Customizer functionality.
require get_template_directory() . '/inc/customizer.php';

// Add shortcodes.
require get_template_directory() . '/inc/shortcode.php';

// Add image attribution.
require get_template_directory() . '/inc/image_attribution.php';

// Add theme guidance.
require get_template_directory() . '/inc/theme_guidance.php';

//Add basic menu
require_once("inc/Walker_OERU_Menu.php");

//Add reduced menu
require_once("inc/Walker_OERU_Menu_Depth.php");

//Add scan page menu
require_once("inc/scanpage_settings.php");

//Add colour choice options
require_once("inc/colour_scheme.php");

//Add icon set selection
require_once("inc/icon_set.php");

//Add analytics configuration
require_once("inc/analytics.php");