+++ /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. */
-/****************************************************************/
-// $Id$
-
-define('AT_INCLUDE_PATH', '../../include/');
-require_once(AT_SOCIAL_INCLUDE.'classes/Activity.class.php');
-require_once(AT_SOCIAL_INCLUDE.'classes/Member.class.php');
-
-/**
- * Get all the connections from the given member id
- * $obj->url should retrieve the member's profile link.
- *
- * @param int the person who we want to get friends from
- * @param int the max number of friends to be returned
- *
- * TODO: Need optimization, too slow.
- */
-function getFriends($member_id, $limit=0){
- global $db, $addslashes;
- $friends = array();
-
- //All member_id = member_id, and All friend_id = member_id
- $sql = 'SELECT F.member_id AS member_id, F.friend_id AS friend_id FROM '.TABLE_PREFIX.'social_friends F LEFT JOIN '.TABLE_PREFIX.'members M ON F.friend_id=M.member_id WHERE (F.member_id='.$member_id.' OR F.friend_id='.$member_id.')';
- if ($limit > 0){
- $sql .= ' ORDER BY RAND() LIMIT '.$limit;
- }
- $result = mysql_query($sql, $db);
-
- if ($result){
- while ($row = mysql_fetch_assoc($result)){
- if ($row['member_id']==$member_id){
- //member_id=member_id case
- $friends[$row['friend_id']] = $row['friend_id'];
- // $friends[$row['member_id']]['first_name'] = $row['first_name'];
- // $friends[$row['member_id']]['last_name'] = $row['last_name'];
- } else {
- //friend_id = member_id
- $friends[$row['member_id']] = $row['member_id'];
- // $friends[$row['friend_id']]['first_name'] = $row['first_name'];
- // $friends[$row['friend_id']]['last_name'] = $row['last_name'];
- }
- }
- }
-/*
- //All friend_id = member_id
- $sql = 'SELECT F.member_id AS member_id, F.friend_id AS friend_id FROM '.TABLE_PREFIX.'social_friends F LEFT JOIN '.TABLE_PREFIX.'members M ON F.friend_id=M.member_id WHERE F.friend_id='.$member_id;
- $result = mysql_query($sql, $db);
- while ($row = mysql_fetch_assoc($result)){
- $friends[$row['member_id']] = new Member($row['member_id']);
-// $friends[$row['friend_id']]['first_name'] = $row['first_name'];
-// $friends[$row['friend_id']]['last_name'] = $row['last_name'];
- }
-*/
- return $friends;
-}
-
-
-/**
- * Decide rather these two people are strictly friend of friend. If they are already friends, return false.
- *
- * @param int person A's member_id
- * @param int person B's member_id
- * @return true if they are friend of friend.
- */
-function isFriendOfFriend($member_a, $member_b){
- $member_a = intval($member_a);
- $member_b = intval($member_b);
- $friends_of_a = getFriends($member_a);
-
- //if these two are already friends
- if(isset($friends_of_a[$member_b])){
- return false;
- }
-
- $friends_of_b = getFriends($member_b);
- $fof = array_intersect($friends_of_a, $friends_of_b); //friends of friends
-
- //If it is not empty or not null, then they have friends
- if (!empty($fof) > 0){
- return true;
- }
- return false;
-}
-
-
-/**
- * Get a list of people you may know
- */
-function getPeopleYouMayKnow(){
- global $db;
- $counter = 0;
- $people_you_may_know = array();
- $pending_requests = getPendingRequests(true);
-
- $sql = 'SELECT MAX(member_id) FROM '.TABLE_PREFIX.'members';
- $result = mysql_query($sql, $db);
- if ($result){
- list($max_id) = mysql_fetch_array($result);
- } else {
- return null;
- }
-
- //if we ran out of people, quit;
- while($counter++ < $max_id){
- //if we get enough people we might know, quit;
- if (sizeof($people_you_may_know) >= SOCIAL_NUMBER_OF_PEOPLE_YOU_MAY_KNOW){
- break;
- }
- //get new random member
- $random_member = rand(1, $max_id); //seed is generated automatically since php 4.2.0
-
- //if this person is myself, next
- if ($random_member==$_SESSION['member_id']){
- continue;
- }
-
- //if this person is already on pending, next.
- if (isset($pending_requests[$random_member])){
- continue;
- }
-
-
- //if we have added this random number before, next.
- if (in_array($random_member, $people_you_may_know)){
- continue;
- }
-
- if (isFriendOfFriend($_SESSION['member_id'], $random_member)){
- $people_you_may_know[] = $random_member;
- }
- }
- return $people_you_may_know;
-}
-
-
-/**
- * Returns a list of friend requests to me/by me depends on the flag
- * @param flag, true for requests made by me, false for requests made to me. DEFAULT: false
- * @return array of friend requests
- */
-function getPendingRequests($request_by_me=false){
- global $db;
- /* NOTE: This table is not bilinear, unlike the friends table.
- * In this table, please do not be confused, member_id is the one who requests
- * friend_id is the member that needs to approve/reject. Thus, when we want to retrieve
- * pending requests, we need to pull entries from friend_id.
- */
- $requests = array();
-
- if ($request_by_me==true) {
- $sql = 'SELECT friend_id AS id FROM '.TABLE_PREFIX.'social_friend_requests WHERE member_id='.$_SESSION['member_id'];
- } else {
- $sql = 'SELECT member_id AS id FROM '.TABLE_PREFIX.'social_friend_requests WHERE friend_id='.$_SESSION['member_id'];
- }
- $rs = mysql_query($sql, $db);
-
- //myself=> pending objs
- while($row = mysql_fetch_assoc($rs)){
- $requests[$row['id']] = new Member($row['id']);
- }
- return $requests;
-}
-
-
-/**
- * This function adds a friend to the database, remove the equivalent friend request.
- *
- * @param int the member being approved, not "MYSELF"
- */
-function approveFriendRequest($friend_id){
- global $db;
- $friend_id = intval($friend_id);
-
- if ($friend_id < 1){
- return;
- }
- //TODO: hardcoded relationship = 1
- $sql = "INSERT INTO ".TABLE_PREFIX."social_friends SET member_id=$_SESSION[member_id], friend_id=$friend_id, relationship=1";
- $is_succeeded = mysql_query($sql, $db);
- //remove the equivalent friend request
- if ($is_succeeded){
- $is_succeeded = removeFriendRequest($friend_id, $_SESSION['member_id']);
- }
-
- //add to activities log
- if ($is_succeeded){
- $act = new Activity();
- $str1 = _AT('now_friends1', printSocialName($friend_id));
- $act->addActivity($_SESSION['member_id'], $str1);
- $str2 = _AT('now_friends2', printSocialName($_SESSION['member_id']));
- $act->addActivity($friend_id, $str2);
- unset($act);
- }
-}
-
-
-/**
- * Reject friend request
- *
- * @param int the member being rejected, not "MYSELF"
- */
-function rejectFriendRequest($friend_id){
- global $db;
- return removeFriendRequest($friend_id, $_SESSION['member_id']);
-}
-
-
-/**
- * Remove Friend request
- * @param member_id the one who make this request
- * @param friend_id the member that decide approval/reject on this request
- */
-function removeFriendRequest($member_id, $friend_id){
- global $db;
- $sql = 'DELETE FROM '.TABLE_PREFIX."social_friend_requests WHERE member_id=$member_id AND friend_id=$friend_id";
- $is_succeeded = mysql_query($sql, $db);
- return $is_succeeded;
-}
-
-
-/**
- * This function adds a friend request to the database
- *
- * @param friend_id the member_id of the friend
- */
-function addFriendRequest($friend_id){
- global $db;
- $friend_id = intval($friend_id);
-
- if ($friend_id < 1){
- return;
- }
-
- $sql = "INSERT INTO ".TABLE_PREFIX."social_friend_requests SET member_id=$_SESSION[member_id], friend_id=$friend_id";
- mysql_query($sql, $db);
- }
-
-
-/**
- * This function removes a friend from the the user.
- *
- * @param int user id
- */
-function removeFriend($friend_id){
- global $db;
- $friend_id = intval($friend_id);
-
- $sql = 'DELETE FROM '.TABLE_PREFIX.'social_friends WHERE (member_id='.$_SESSION['member_id'].' AND '.'friend_id='.$friend_id.') OR (friend_id='.$_SESSION['member_id'].' AND '.'member_id='.$friend_id.')';
- mysql_query($sql, $db);
-}
-
-
-/**
- * This function will return a list of people from the network with the given name.
- * @param string to be searched in the members table, can have space.
- * @param [OPTIONAL] boolean if true, will search only within this member.
- * @return array of friends of this member; id=>[first name, last name, profile picture]
- *
- * TODO: search needs work. Order by the most matches to the least matches
- */
-function searchFriends($name, $searchMyFriends = false, $offset=-1){
- global $db, $addslashes;
- $result = array();
- $my_friends = array();
- $exact_match = false;
-
- //break the names by space, then accumulate the query
- if (preg_match("/^\\\\?\"(.*)\\\\?\"$/", $name, $matches)){
- $exact_match = true;
- $name = $matches[1];
- }
- $name = $addslashes($name);
- $sub_names = explode(' ', $name);
- foreach($sub_names as $piece){
- if ($piece == ''){
- continue;
- }
-
- //if there are 2 double quotes around a search phrase, then search it as if it's "first_name last_name".
- //else, match any contact in the search phrase.
- if ($exact_match){
- $match_piece = "= '$piece' ";
- } else {
- $match_piece = "LIKE '%$piece%' ";
- }
- $query .= "(first_name $match_piece OR second_name $match_piece OR last_name $match_piece OR email LIKE '$piece') AND ";
- }
- //trim back the extra "AND "
- $query = substr($query, 0, -4);
-
- //Check if this is a search on all people
- if ($searchMyFriends == true){
- //If searchMyFriend is true, return the "my friends" array
- //If the member_id is empty, (this happens when we are doing a search without logging in) then get all members?
- //else, use "my friends" array to distinguish which of these are already in my connection
- if(!isset($_SESSION['member_id'])){
- $sql = 'SELECT member_id FROM '.TABLE_PREFIX.'members WHERE ';
- } else {
- $sql = 'SELECT F.* FROM '.TABLE_PREFIX.'social_friends F LEFT JOIN '.TABLE_PREFIX.'members M ON F.friend_id=M.member_id WHERE (F.member_id='.$_SESSION['member_id'].') AND ';
- $sql .= $query;
- $sql .= ' UNION ';
- $sql .= 'SELECT F.* FROM '.TABLE_PREFIX.'social_friends F LEFT JOIN '.TABLE_PREFIX.'members M ON F.member_id=M.member_id WHERE (F.friend_id='.$_SESSION['member_id'].') AND ';
- }
- $sql .= $query;
-
- $rs = mysql_query($sql, $db);
- if ($rs){
- while ($row = mysql_fetch_assoc($rs)){
- if ($row['member_id']==$_SESSION['member_id']){
- $this_id = $row['friend_id'];
- } else {
- $this_id = $row['member_id'];
- }
- $temp =& $my_friends[$this_id];
- $temp['obj'] = new Member($this_id);
- if ($searchMyFriends){
- $temp['added'] = 1;
- }
- }
- }
- unset($this_id); //don't want the following statements to reuse this
- return $my_friends;
- } else {
- /*
- * Harris' note:
- * IF the 'search my friend' is off, then it should search all members inside that table
- * don't know why i did the search inside [friends x members]
- * Also this query is gonna pull out all members cept 'myself'
- * raised a small problem for public use, cause there is no member_id
- * end note;
- */
- //$sql = 'SELECT * FROM '.TABLE_PREFIX.'social_friends F LEFT JOIN '.TABLE_PREFIX.'members M ON F.friend_id=M.member_id WHERE ';
- $sql = 'SELECT * FROM '.TABLE_PREFIX.'members M WHERE ';
- if (isset($_SESSION['member_id'])){
- $sql .= 'member_id!='.$_SESSION['member_id'].' AND ';
- }
- }
- $sql = $sql . $query;
- if ($offset >= 0){
- $sql .= " LIMIT $offset, ". SOCIAL_FRIEND_SEARCH_MAX;
- }
- $rs = mysql_query($sql, $db);
-
- //Get all members out
- while($row = mysql_fetch_assoc($rs)){
-// if ($row['member_id']==$_SESSION['member_id']){
-// $this_id = $row['friend_id'];
-// } else {
- $this_id = $row['member_id'];
-// }
-
- //skip empty entry, don't know why there would be empty entry.
- //TODO: Trace this. could be a bug in query
- if ($this_id == ''){
- continue;
- }
-
- $temp =& $result[$this_id];
- $temp['id'] = $this_id;
-// $temp['first_name'] = $row['first_name'];
-// $temp['last_name'] = $row['last_name'];
-
- //if this person exists in "my friends" list, mark it.
- if (isset($my_friends[$this_id])){
- $temp['added'] = 1;
- }
- }
- return $result;
-}
-
-
-/**
- * Given an array list of friends, this function will add an attribute 'added' into the array if this person is already connected to the user.
- * @param int the user id
- * @param array the given array of friends
- * @return marked array
- */
- function markFriends($id, $connections){
- //get all friends
- $my_friends = getFriends($id);
- $pending_requests = getPendingRequests(true);
-
- foreach($my_friends as $friends){
- //if it is in the connection, set the attribute
- if($connections[$friends] != null){
- $connections[$friends]['added'] = 1;
- }
- }
-
- foreach ($pending_requests as $friends=>$garbage){
- //if it is already added, set pending =1
- if ($connections[$friends] != null){
- $connections[$friends]['pending'] = 1;
- }
- }
- return $connections;
- }
-
-
-/**
- * Invite other members
- * @param int The member that we are going to invite
- * @param int The group id in which we are inviting the person to.
- */
- function addGroupInvitation($member_id, $group_id){
- global $db;
-
- $sql = 'INSERT INTO '.TABLE_PREFIX."social_groups_invitations (sender_id, group_id, member_id) VALUES ($_SESSION[member_id], $group_id, $member_id)";
-// echo $sql;
- $result = mysql_query($sql, $db);
- if($result){
- return true;
- }
- return false;
- }
-
-
-/**
- * Get invitation from "ME", which is the logged in person
- * @return list of groups id + sender_id
- */
- function getGroupInvitations(){
- global $db;
- $inv = array();
-
- $sql = 'SELECT * FROM '.TABLE_PREFIX.'social_groups_invitations WHERE member_id='.$_SESSION['member_id'];
-
- $result = mysql_query($sql, $db);
- if ($result){
- while ($row = mysql_fetch_assoc($result)){
- $inv[$row['group_id']][] = $row['sender_id'];
- }
- }
-
- return $inv;
- }
-
-
- /**
- * Get group requests for "ME", which is the logged in person.
- * @return list of groups id + sender_id
- */
- function getGroupRequests(){
- global $db;
- $requests = array();
-
- $sql = 'SELECT * FROM '.TABLE_PREFIX.'social_groups_requests WHERE member_id='.$_SESSION['member_id'];
-
- $result = mysql_query($sql, $db);
- if ($result){
- while ($row = mysql_fetch_assoc($result)){
- $requests[$row['group_id']][] = $row['sender_id'];
- }
- }
-
- return $requests;
- }
-
-
- /**
- * Accept "my" group invitation
- * @param int group id
- * @param int sender's member_id
- */
-function acceptGroupInvitation($group_id){
- global $db;
-
- //will only add member if the group_id is valid.
- if ($group_id <= 0){
- return;
- }
-
- $sg = new SocialGroup($group_id);
- $isSucceeded = $sg->addMember($_SESSION['member_id']);
-
- if ($isSucceeded){
- removeGroupInvitation($group_id);
- }
-}
-
-
- /**
- * Reject "my" group invitation
- */
- function rejectGroupInvitation($group_id){
- return removeGroupInvitation($group_id);
- }
-
-
-
- /**
- * Remove "my" group invitation
- * @param int group id
- */
- function removeGroupInvitation($group_id){
- global $db;
- $group_id = intval($group_id);
-
- //delete invitation based on 3 primary keys
-// $sql = 'DELETE FROM '.TABLE_PREFIX."social_groups_invitations WHERE group_id=$group_id AND sender_id=$sender_id AND member_id=$member_id";
- //doesn't need sender_id cause we want to remove all anyway.
- $sql = 'DELETE FROM '.TABLE_PREFIX."social_groups_invitations WHERE group_id=$group_id AND member_id=$_SESSION[member_id]";
- $result = mysql_query($sql, $db);
- if ($result){
- return true;
- }
- return false;
- }
-
-
- /**
- * Accept the group request
- * @param int group id
- * @param int member that made this request
- */
- function acceptGroupRequest($group_id, $sender_id){
- global $db;
-
- //will only add member if the group_id is valid.
- if ($group_id <= 0){
- return;
- }
-
- $sg = new SocialGroup($group_id);
- $isSucceeded = $sg->addMember($sender_id);
-
- if ($isSucceeded){
- removeGroupRequest($group_id, $sender_id);
- }
- }
-
-
- /**
- * Reject the group request
- * @param int group id
- * @param int member that made this request
- */
- function rejectGroupRequest($group_id, $sender_id) {
- return removeGroupRequest($group_id, $sender_id);
- }
-
-
-
- /**
- * Remove group requests
- * @param int group id
- * @param int member that made this request
- */
- function removeGroupRequest($group_id, $sender_id){
- global $db;
- $group_id = intval($group_id);
- $sender_id = intval($sender_id);
-
- $sql = 'DELETE FROM '.TABLE_PREFIX."social_groups_requests WHERE group_id=$group_id AND member_id=$_SESSION[member_id] AND sender_id=$sender_id";
-
- $result = mysql_query($sql, $db);
- if ($result){
- return true;
- }
- return false;
- }
-
-
-/**
- * Print social name, with AT_print and profile link
- * @param int member id
- * @param link will return a hyperlink when set to true
- * return the name to be printed.
- */
-function printSocialName($id, $link=true){
- $str .= AT_print(get_display_name($id), 'members.full_name');
- if ($link) {
- return getProfileLink($id, $str);
- }
- return $str;
-}
-
-
-/**
- * Mimic vital's print_profile_img function, but with a more customized image definition
- * @param int the member id
- * @param 1 for thumbnail, 2 for profile
- * @param true will return a href link to the profile page, false otherwise
- * @return the profile image link
- */
-function printSocialProfileImg($id, $type=1, $link=true) {
- global $moduleFactory;
- $str = '';
- $mod = $moduleFactory->getModule('_standard/profile_pictures');
- if ($mod->isEnabled() === FALSE) {
- return;
- }
- if (profile_image_exists($id)) {
- if ($type==1){
- $str = '<img src="get_profile_img.php?id='.$id.'" alt="" />';
- } elseif ($type==2){
- $str = '<img src="get_profile_img.php?id='.$id.SEP.'size=p" alt="" />';
- }
- } else {
- $str = '<img src="'.AT_SOCIAL_BASENAME.'images/nophoto.gif" alt="" />';
- }
- if (!$link){
- return $str;
- }
- return getProfileLink($id, $str);
-}
-
-
-/**
- * Generate the a href link to the designated profile
- * For now, it's to sprofile, but in the future, we want ATutor + Opensocial to have only 1 profile, which should
- * point to the default atutor profile page.
- *
- * @private
- * @param int member id
- * @param string Image tag, or any string
- * @return the hyperlink to the profile
- */
-function getProfileLink($id, $str){
- $link = '<a href="'.url_rewrite(AT_SOCIAL_BASENAME.'sprofile.php?id='.$id).'">';
- $link .= $str;
- $link .= '</a>';
- return $link;
-}
-
-/**
- * Convert all input to htmlentities output, in UTF-8.
- * @param string input to be convert
- * @param boolean true if we wish to change all carrier returns to a <br/> tag, false otherwise.
- */
-function htmlentities_utf8($str, $use_nl2br=true){
- $return = htmlentities($str, ENT_QUOTES, 'UTF-8');
- if ($use_nl2br){
- return nl2br($return);
- }
- return $return;
-}
-
-/**
- * This function will return a list of the member's activities
- * @param member_id The id of the member we wish to get the activities from.
- */
-function getMemberActivities($member_id){
-}
-
-?>
\ No newline at end of file
projects / atutor.git / blobdiff