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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.

Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402] [Versions 401 and 402]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Cohort role assignments table
  19   *
  20   * @package    tool_cohortroles
  21   * @copyright  2015 Damyon Wiese
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  namespace tool_cohortroles\output;
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  require_once($CFG->libdir . '/tablelib.php');
  29  
  30  use context_helper;
  31  use context_system;
  32  use html_writer;
  33  use moodle_url;
  34  use table_sql;
  35  
  36  /**
  37   * Cohort role assignments table.
  38   *
  39   * @package    tool_cohortroles
  40   * @copyright  2015 Damyon Wiese
  41   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  42   */
  43  class cohort_role_assignments_table extends table_sql {
  44  
  45      /** @var context_system */
  46      protected ?context_system $context = null;
  47  
  48      /** @var array */
  49      protected array $rolenames = [];
  50  
  51      /**
  52       * Sets up the table.
  53       *
  54       * @param string $uniqueid Unique id of table.
  55       * @param moodle_url $url The base URL.
  56       */
  57      public function __construct($uniqueid, $url) {
  58          global $CFG;
  59          parent::__construct($uniqueid);
  60          $context = context_system::instance();
  61  
  62          $this->context = $context;
  63  
  64          $this->rolenames = role_get_names();
  65  
  66          // This object should not be used without the right permissions.
  67          require_capability('moodle/role:manage', $context);
  68  
  69          $this->useridfield = 'userid';
  70  
  71          // Define columns in the table.
  72          $this->define_table_columns();
  73  
  74          $this->define_baseurl($url);
  75          // Define configs.
  76          $this->define_table_configs();
  77      }
  78  
  79      /**
  80       * Role name column.
  81       *
  82       * @param array $data Row data.
  83       * @return string
  84       */
  85      protected function col_rolename($data) {
  86          return $this->rolenames[$data->roleid]->localname;
  87      }
  88  
  89      /**
  90       * Cohort name column.
  91       *
  92       * @param array $data Row data.
  93       * @return string
  94       */
  95      protected function col_cohortname($data) {
  96          global $OUTPUT;
  97  
  98          $record = (object) array(
  99              'id' => $data->cohortid,
 100              'idnumber' => $data->cohortidnumber,
 101              'description' => $data->cohortdescription,
 102              'visible' => $data->cohortvisible,
 103              'name' => $data->cohortname,
 104              'theme' => $data->cohorttheme
 105          );
 106          $context = context_helper::instance_by_id($data->cohortcontextid);
 107  
 108          $exporter = new \core_cohort\external\cohort_summary_exporter($record, array('context' => $context));
 109          $cohort = $exporter->export($OUTPUT);
 110  
 111          $html = $OUTPUT->render_from_template('tool_cohortroles/cohort-in-list', $cohort);
 112          return $html;
 113      }
 114  
 115      /**
 116       * Actions column.
 117       *
 118       * @param array $data Row data.
 119       * @return string
 120       */
 121      protected function col_actions($data) {
 122          global $OUTPUT;
 123  
 124          $action = new \confirm_action(get_string('removecohortroleassignmentconfirm', 'tool_cohortroles'));
 125          $url = new moodle_url($this->baseurl);
 126          $url->params(array('removecohortroleassignment' => $data->id, 'sesskey' => sesskey()));
 127          $pix = new \pix_icon('t/delete', get_string('removecohortroleassignment', 'tool_cohortroles'));
 128          return $OUTPUT->action_link($url, '', $action, null, $pix);
 129      }
 130  
 131      /**
 132       * Setup the headers for the table.
 133       */
 134      protected function define_table_columns() {
 135          // TODO Does not support custom user profile fields (MDL-70456).
 136          $extrafields = \core_user\fields::get_identity_fields($this->context, false);
 137  
 138          // Define headers and columns.
 139          $cols = array(
 140              'cohortname' => get_string('cohort', 'cohort'),
 141              'rolename' => get_string('role'),
 142              'fullname' => get_string('name'),
 143          );
 144  
 145          // Add headers for extra user fields.
 146          foreach ($extrafields as $field) {
 147              if (get_string_manager()->string_exists($field, 'moodle')) {
 148                  $cols[$field] = get_string($field);
 149              } else {
 150                  $cols[$field] = $field;
 151              }
 152          }
 153  
 154          // Add remaining headers.
 155          $cols = array_merge($cols, array('actions' => get_string('actions')));
 156  
 157          $this->define_columns(array_keys($cols));
 158          $this->define_headers(array_values($cols));
 159      }
 160  
 161      /**
 162       * Define table configs.
 163       */
 164      protected function define_table_configs() {
 165          $this->collapsible(false);
 166          $this->sortable(true, 'lastname', SORT_ASC);
 167          $this->pageable(true);
 168          $this->no_sorting('actions');
 169      }
 170  
 171      /**
 172       * Builds the SQL query.
 173       *
 174       * @param bool $count When true, return the count SQL.
 175       * @return array containing sql to use and an array of params.
 176       */
 177      protected function get_sql_and_params($count = false) {
 178          $fields = 'uca.id, uca.cohortid, uca.userid, uca.roleid, ';
 179          $fields .= 'c.name as cohortname, c.idnumber as cohortidnumber, c.contextid as cohortcontextid, ';
 180          $fields .= 'c.visible as cohortvisible, c.description as cohortdescription, c.theme as cohorttheme';
 181  
 182          // Add extra user fields that we need for the graded user.
 183          // TODO Does not support custom user profile fields (MDL-70456).
 184          $userfieldsapi = \core_user\fields::for_identity($this->context, false)->with_name();
 185          $fields .= $userfieldsapi->get_sql('u')->selects;
 186  
 187          if ($count) {
 188              $select = "COUNT(1)";
 189          } else {
 190              $select = "$fields";
 191          }
 192  
 193          $sql = "SELECT $select
 194                     FROM {tool_cohortroles} uca
 195                     JOIN {user} u ON u.id = uca.userid
 196                     JOIN {cohort} c ON c.id = uca.cohortid";
 197  
 198          // Check if any additional filtering is required.
 199          [$sqlwhere, $params] = $this->get_sql_where();
 200          if ($sqlwhere) {
 201              $sql .= " WHERE {$sqlwhere}";
 202          }
 203  
 204          // Add order by if needed.
 205          if (!$count && $sqlsort = $this->get_sql_sort()) {
 206              $sql .= " ORDER BY " . $sqlsort;
 207          }
 208  
 209          return array($sql, $params);
 210      }
 211  
 212      /**
 213       * Override the default implementation to set a decent heading level.
 214       */
 215      public function print_nothing_to_display() {
 216          global $OUTPUT;
 217          echo $this->render_reset_button();
 218          $this->print_initials_bar();
 219          echo $OUTPUT->heading(get_string('nothingtodisplay'), 4);
 220      }
 221  
 222      /**
 223       * Query the DB.
 224       *
 225       * @param int $pagesize size of page for paginated displayed table.
 226       * @param bool $useinitialsbar do you want to use the initials bar.
 227       */
 228      public function query_db($pagesize, $useinitialsbar = true) {
 229          global $DB;
 230  
 231          list($countsql, $countparams) = $this->get_sql_and_params(true);
 232          list($sql, $params) = $this->get_sql_and_params();
 233          $total = $DB->count_records_sql($countsql, $countparams);
 234          $this->pagesize($pagesize, $total);
 235          $this->rawdata = $DB->get_records_sql($sql, $params, $this->get_page_start(), $this->get_page_size());
 236  
 237          // Set initial bars.
 238          if ($useinitialsbar) {
 239              $this->initialbars($total > $pagesize);
 240          }
 241      }
 242  }