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<?php
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// $Id: og_gradebook.module,v 1.3 2006/11/15 08:51:46 rwohleb Exp $
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// hook_help
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function og_gradebook_help($section) {
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switch ($section) {
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case 'admin/modules#description':
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return t('Ties gradebook to organic groups.');
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}
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}
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// hook_menu
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/*
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function og_gradebook_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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$items[] = array(
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'path' => 'og_gradebook',
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'callback' => 'og_gradebook_page',
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'type' => MENU_CALLBACK,
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'access' => user_access('access content'),
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);
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}
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return $items;
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}
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function og_gradebook_page($gradebook) {
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$gid = $_GET['edit']['og_groups'][0];
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$group = node_load($gid);
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og_set_group_context($group);
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$gradebook = gradebookapi_gradebook_load($gradebook);
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return gradebook_gradebook_page($gradebook);
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}
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*/
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/**
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* Implementation of hook_settings().
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*/
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function og_gradebook_settings() {
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$form['#submit']['og_gradebook_settings_submit'] = array(); // custom submit handler
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$form['#submit']['system_settings_form_submit'] = array(); // form.inc never calls the $callback if a submit handler is defined
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$form['update'] = array(
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'#type' => 'fieldset',
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'#title' => t('Retroactively update old groups'),
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'#description' => t('Pressing this button will create gradebooks for any groups that do not already have them.'),
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'#collapsible' => TRUE,
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);
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$form['update']['button'] = array(
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'#type' => 'submit',
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'#value' => t('Update old groups'),
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);
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return $form;
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}
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/**
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* Custom submit handler for group update
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*/
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function og_gradebook_settings_submit($form_id, $form_values) {
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if ($_POST['op'] == t('Update old groups')) {
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og_gradebook_retroactively_apply();
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}
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}
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// Implementation of hook_nodeapi
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function og_gradebook_nodeapi($node, $op, $teaser = NULL) {
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switch ($op) {
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case 'insert':
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if (og_is_group_type($node->type)) {
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$edit = array('name' => $node->title, 'description' => $node->og_description, 'vid' => gradebookapi_get_vid());
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$status = taxonomy_save_term($edit);
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db_query('INSERT INTO {og_gradebook} (tid, nid) VALUES (%d, %d)', $edit['tid'], $node->nid);
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}
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break;
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case 'update':
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if (og_is_group_type($node->type)) {
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$result = db_query('SELECT tid FROM {og_gradebook} WHERE nid = %d', $node->nid);
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if ($term = db_fetch_object($result)) {
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$edit = array('tid' => $term->tid, 'name' => $node->title, 'description' => $node->og_description, 'vid' => gradebookapi_get_vid());
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$status = taxonomy_save_term($edit);
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}
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else {
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// We hit a group that doesn't already have a gradebook. Pretend this is an insert.
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return og_gradebook_nodeapi($node, 'insert', $teaser);
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}
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}
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break;
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case 'delete':
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// Delete existing terms for this og
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if (og_is_group_type($node->type)) {
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// TODO: delete grades, etc
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$result = db_query('SELECT tid FROM {og_gradebook} WHERE nid = %d', $node->nid);
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while ($term = db_fetch_object($result)) {
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taxonomy_del_term($term->tid);
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}
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db_query('DELETE FROM {og_gradebook} WHERE nid = %d', $node->nid);
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}
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break;
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}
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}
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function og_gradebook_get_gradebook($group_id) {
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// Grab most recent term created for group; this will be the gradebook id
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return db_result(db_query_range('SELECT tid FROM {og_gradebook} WHERE nid = %d ORDER BY tid DESC', $group_id, 0, 1));
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}
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function og_gradebook_get_group($gradebook_id) {
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// Grab most recent term created for group; this will be the group id
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return db_result(db_query_range('SELECT nid FROM {og_gradebook} WHERE tid = %d ORDER BY nid DESC', $gradebook_id, 0, 1));
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}
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/**
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* Implementation of hook_og_create_links().
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*/
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function og_gradebook_og_create_links($group) {
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$links = array();
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// Get group's forum
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$gradebook = og_gradebook_get_gradebook($group->nid);
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if ($gradebook) {
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//$links[] = l(t('Gradebook'), "og_gradebook/$gradebook/$group->nid", array('title' => t('View group gradebook.')), "edit[og_groups][]=$group->nid");
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//$links[] = l(t('Gradebook'), "gradebook/$gradebook", array('title' => t('View group gradebook.')), "edit[og_groups][]=$group->nid");
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$links[] = l(t('Gradebook'), 'gradebook/' . $gradebook, array('title' => t('View group gradebook.')));
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}
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return $links;
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}
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// hook_form_alter
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function og_gradebook_form_alter($form_id, &$form) {
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// TODO: if non-group assignment is put in to a group, assign to group. same for the opposite.
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// Auto-select group's gradebook
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if (isset($form['type']) && $form['type']['#value'] .'_node_form' == $form_id) {
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$node = $form['#node'];
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$types = gradebookapi_get_assignment_types();
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// are we an assignment type?
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if (in_array($node->type, $types)) {
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$group = og_get_group_context();
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if ($group->nid) {
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$options = array();
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$vid = gradebookapi_get_vid();
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$root = og_gradebook_get_gradebook($group->nid);
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$tree = taxonomy_get_tree($vid, $root);
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$options[$root] = '<'. t('root') .'>';
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foreach ($tree as $term) {
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$options[$term->tid] = str_repeat('--', $term->depth) . $term->name;
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}
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$vcount = 0;
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foreach ($form['taxonomy'] as $key => $value) {
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if (is_int($key)) {
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++$vcount;
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}
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}
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if (($vcount <= 1) && (count($options)<=1)) {
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unset($form['taxonomy']['#type']);
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}
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if (count($options)>1) {
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$form['taxonomy'][$vid]['#options'] = $options;
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// make sure default is valid
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$default = $form['taxonomy'][$vid]['#default_value'];
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$form['taxonomy'][$vid]['#default_value'] = array();
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foreach ($default as $key => $tid) {
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if (in_array($tid, array_keys($options))) {
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$form['taxonomy'][$vid]['#default_value'][] = $tid;
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}
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}
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if (count($form['taxonomy'][$vid]['#default_value']) <= 0) {
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$form['taxonomy'][$vid]['#default_value'][] = $root;
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}
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}
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else {
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$form['taxonomy'][$vid] = array('#type' => 'hidden', '#value' => $term);
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}
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}
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}
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}
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}
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function og_gradebook_retroactively_apply() {
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$counter = 0;
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// Obtain list of all groups
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$result = db_query('SELECT og.nid, n.title, n.type FROM {og} og INNER JOIN {node} n on og.nid = n.nid');
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while ($group = db_fetch_object($result)) {
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// See if terms are found for this group
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if (!db_result(db_query('SELECT * FROM {og_gradebook} ogt WHERE ogt.nid = %d', $group->nid))) {
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// If so, fake a nodeapi insert
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og_gradebook_nodeapi($group, 'insert');
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$counter++;
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}
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}
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drupal_set_message(t('%num groups had forums created', array('%num' => $counter)));
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}
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// hook_gradebookapi_students
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function og_gradebook_gradebookapi_students($gradebook) {
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$students = array();
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if ($group_id = og_gradebook_get_group($gradebook->tid)) {
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$sql = "SELECT u.uid FROM {og_uid} ou INNER JOIN {users} u ON ou.uid = u.uid WHERE ou.nid = %d AND u.status > 0 AND ou.is_active > 0 AND ou.is_admin < 1";
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$result = db_query($sql, $group_id);
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while ($user = db_fetch_object($result)) {
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$students[$user->uid] = $user->uid;
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}
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}
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return $students;
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}
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// hook_gradebookapi_teachers
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function og_gradebook_gradebookapi_teachers($gradebook) {
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$teachers = array();
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if ($group_id = og_gradebook_get_group($gradebook->tid)) {
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$sql = "SELECT u.uid FROM {og_uid} ou INNER JOIN {users} u ON ou.uid = u.uid WHERE ou.nid = %d AND u.status > 0 AND ou.is_active > 0 AND ou.is_admin > 0";
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$result = db_query($sql, $group_id);
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while ($user = db_fetch_object($result)) {
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$teachers[$user->uid] = $user->uid;
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}
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}
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return $teachers;
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}
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// similiar to og_init
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function og_gradebook_init() {
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if (arg(0) == 'gradebook') {
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//if (is_numeric(arg(1)) || (variable_get('gradebook_show_default', 1))) {
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if (is_numeric(arg(1))) {
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//$gradebook = (is_numeric(arg(1))?gradebookapi_gradebook_load(arg(1)):gradebookapi_default_gradebook_load());
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$gradebook = gradebookapi_gradebook_load(arg(1));
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$group_id = og_gradebook_get_group($gradebook->tid);
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$group_node = og_set_theme($group_id);
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//$group_node = node_load($group_id);
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og_set_group_context($group_node);
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og_set_locale();
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}
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}
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}
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