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<?php
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/**
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* @file
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* Definition of views_handler_field_user_roles.
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*/
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/**
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* Field handler to provide a list of roles.
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*
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* @ingroup views_field_handlers
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*/
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class views_handler_field_user_roles extends views_handler_field_prerender_list {
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/**
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* {@inheritdoc}
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*/
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public function construct() {
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parent::construct();
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$this->additional_fields['uid'] = array('table' => 'users', 'field' => 'uid');
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}
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function option_definition() {
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$options = parent::option_definition();
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$options['display_roles'] = array('default' => array());
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return $options;
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}
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function options_form(&$form, &$form_state) {
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$roles = user_roles(TRUE);
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unset($roles[DRUPAL_AUTHENTICATED_RID]);
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if (!empty($roles)) {
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$form['display_roles'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Only display the selected roles'),
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'#description' => t("If no roles are selected, all of the user's roles will be shown."),
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'#options' => $roles,
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'#default_value' => $this->options['display_roles'],
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);
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}
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parent::options_form($form, $form_state);
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}
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/**
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* {@inheritdoc}
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*/
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public function query() {
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$this->add_additional_fields();
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$this->field_alias = $this->aliases['uid'];
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}
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/**
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* {@inheritdoc}
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*/
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public function pre_render(&$values) {
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$uids = array();
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$this->items = array();
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foreach ($values as $result) {
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$uids[] = $this->get_value($result, NULL, TRUE);
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}
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if ($uids) {
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$rids = array_filter($this->options['display_roles']);
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if (!empty($rids)) {
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$result = db_query("SELECT u.uid, u.rid, r.name FROM {role} r INNER JOIN {users_roles} u ON u.rid = r.rid WHERE u.uid IN (:uids) AND r.rid IN (:rids) ORDER BY r.name",
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array(':uids' => $uids, ':rids' => $rids));
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}
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else {
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$result = db_query("SELECT u.uid, u.rid, r.name FROM {role} r INNER JOIN {users_roles} u ON u.rid = r.rid WHERE u.uid IN (:uids) ORDER BY r.name",
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array(':uids' => $uids));
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}
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foreach ($result as $role) {
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$this->items[$role->uid][$role->rid]['role'] = check_plain($role->name);
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$this->items[$role->uid][$role->rid]['rid'] = $role->rid;
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function render_item($count, $item) {
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return t($item['role']);
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}
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/**
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* {@inheritdoc}
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*/
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public function document_self_tokens(&$tokens) {
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$tokens['[' . $this->options['id'] . '-role' . ']'] = t('The name of the role.');
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$tokens['[' . $this->options['id'] . '-rid' . ']'] = t('The role ID of the role.');
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}
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/**
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* {@inheritdoc}
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*/
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public function add_self_tokens(&$tokens, $item) {
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if (!empty($item['role'])) {
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$tokens['[' . $this->options['id'] . '-role' . ']'] = $item['role'];
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$tokens['[' . $this->options['id'] . '-rid' . ']'] = $item['rid'];
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}
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}
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}
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