+++ /dev/null
-<?php
-/****************************************************************/
-/* ATutor */
-/****************************************************************/
-/* Copyright (c) 2002-2009 */
-/* Adaptive Technology Resource Centre / University of Toronto */
-/* http://atutor.ca */
-/* */
-/* This program is free software. You can redistribute it and/or*/
-/* modify it under the terms of the GNU General Public License */
-/* as published by the Free Software Foundation. */
-/****************************************************************/
-// $Id$
-
-/**
- * This class is designed to handle the transactions for all the news, updates and
- * activities that are issued by the user.
- *
- */
-class Activity{
- //constructor
- function Activity(){}
-
- /**
- * Adds a new activity into the database.
- * @param int user id
- * @param string the message of that describe this activity
- * @param int the application that's linked with this activity. Purpose is to display it with a link.
- * TODO: What happens if title is empty? Don't add it?
- */
- function addActivity($id, $title, $app_id=0){
- global $db, $addslashes;
- $id = intval($id);
- $app_id = intval($app_id);
- $app_string = '';
-
- if ($app_id > 0){
- $app_string = ", application_id=$app_id";
- //overwrite title with an automated message
- $title = $this->generateApplicationTitle($app_id);
- }
-
- if ($id > 0 && $title!=''){
- $sql = 'INSERT INTO '.TABLE_PREFIX."social_activities SET member_id=$id, title='$title'".$app_string;
- mysql_query($sql, $db);
- }
- }
-
-
- /**
- * Retrieve this user's activity
- *
- * @param int user id.
- * @param boolean set TRUE to display all entry
- * @return The array of description of all the activities from the given user.
- */
- function getActivities($id, $displayAll=false){
- global $db;
- $activities = array();
- $id = intval($id);
- if ($id > 0){
- $sql = 'SELECT * FROM '.TABLE_PREFIX."social_activities WHERE member_id=$id ORDER BY created_date DESC";
- if (!$displayAll){
- $sql .= ' LIMIT '.SOCIAL_FRIEND_ACTIVITIES_MAX;
- }
- $result = mysql_query($sql, $db);
- if ($result){
- while($row = mysql_fetch_assoc($result)){
- $activities[$row['id']]['member_id'] = $row['member_id'];
- $activities[$row['id']]['title'] = $row['title'];
- $activities[$row['id']]['created_date'] = $row['created_date'];
- }
- }
- return $activities;
- }
- return;
- }
-
-
- /**
- * Remove an activity
- *
- * @param int user id
- * @return true if activity is deleted.
- */
- function deleteActivity($id){
- global $db;
-
- $id = intval($id);
- $sql = 'DELETE FROM '.TABLE_PREFIX.'social_activities WHERE member_id='.$_SESSION['member_id'].' AND id='.$id;
- mysql_query($sql, $db);
- if (mysql_affected_rows() > 0){
- return true;
- } else {
- return false;
- }
- }
-
-
- /**
- * Retrieve friends' recent activities
- *
- * @param int user id
- * @param boolean set TRUE to display all entry
- * @return The array of description of all the activities of the given user's friends.
- */
- function getFriendsActivities($id, $displayAll=false){
- global $db;
- $activities = array();
-
- $friends = getFriends($id);
- $friends_ids = implode(', ', array_keys($friends));
- $sql = 'SELECT * FROM '.TABLE_PREFIX.'social_activities WHERE member_id IN ('.$friends_ids.') ORDER BY created_date DESC';
- if (!$displayAll){
- $sql .= ' LIMIT '.SOCIAL_FRIEND_ACTIVITIES_MAX;
- }
- $result = mysql_query($sql, $db);
-
- if ($result){
- while($row = mysql_fetch_assoc($result)){
- $activities[$row['id']]['member_id'] = $row['member_id'];
- $activities[$row['id']]['title'] = $row['title'];
- $activities[$row['id']]['created_date'] = $row['created_date'];
- }
- }
- return $activities;
- }
-
-
- /**
- * Generate the title string for application.
- *
- * @param int application id
- * @return the title string that has a hyperlink to the application itself.
- */
- function generateApplicationTitle($app_id){
- global $db;
- $app_id = intval($app_id);
-
- //This here, it is actually better to use $url instead of app_id.
- //$url is the primary key. $id is also a key, but it is not guranteed that it will be unique
- $sql = 'SELECT title FROM '.TABLE_PREFIX."social_applications WHERE id=$app_id";
- $result = mysql_query($sql, $db);
- $row = mysql_fetch_assoc($result);
-
- $msg = _AT("has_added_app", url_rewrite(AT_SOCIAL_BASENAME.'applications.php?app_id='.$app_id),
- htmlentities_utf8($row['title']));
- return $msg;
- }
-}
-?>
projects / atutor.git / blobdiff