friend.php
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<?php
/*
[UCenter] (C)2001-2099 Comsenz Inc.
This is NOT a freeware, use is subject to license terms
$Id: friend.php 1059 2011-03-01 07:25:09Z monkey $
*/
!defined('IN_UC') && exit('Access Denied');
class friendmodel {
var $db;
var $base;
function __construct(&$base) {
$this->friendmodel($base);
}
function friendmodel(&$base) {
$this->base = $base;
$this->db = $base->db;
}
function add($uid, $friendid, $comment='') {
$direction = $this->db->result_first("SELECT direction FROM ".UC_DBTABLEPRE."friends WHERE uid='$friendid' AND friendid='$uid' LIMIT 1");
if($direction == 1) {
$this->db->query("INSERT INTO ".UC_DBTABLEPRE."friends SET uid='$uid', friendid='$friendid', comment='$comment', direction='3'", 'SILENT');
$this->db->query("UPDATE ".UC_DBTABLEPRE."friends SET direction='3' WHERE uid='$friendid' AND friendid='$uid'");
return 1;
} elseif($direction == 2) {
return 1;
} elseif($direction == 3) {
return -1;
} else {
$this->db->query("INSERT INTO ".UC_DBTABLEPRE."friends SET uid='$uid', friendid='$friendid', comment='$comment', direction='1'", 'SILENT');
return $this->db->insert_id();
}
}
function delete($uid, $friendids) {
$friendids = $this->base->implode($friendids);
$this->db->query("DELETE FROM ".UC_DBTABLEPRE."friends WHERE uid='$uid' AND friendid IN ($friendids)");
$affectedrows = $this->db->affected_rows();
if($affectedrows > 0) {
$this->db->query("UPDATE ".UC_DBTABLEPRE."friends SET direction=1 WHERE uid IN ($friendids) AND friendid='$uid' AND direction='3'");
}
return $affectedrows;
}
function get_totalnum_by_uid($uid, $direction = 0) {
$sqladd = '';
if($direction == 0) {
$sqladd = "uid='$uid'";
} elseif($direction == 1) {
$sqladd = "uid='$uid' AND direction='1'";
} elseif($direction == 2) {
$sqladd = "friendid='$uid' AND direction='1'";
} elseif($direction == 3) {
$sqladd = "uid='$uid' AND direction='3'";
}
$totalnum = $this->db->result_first("SELECT COUNT(*) FROM ".UC_DBTABLEPRE."friends WHERE $sqladd");
return $totalnum;
}
function get_list($uid, $page, $pagesize, $totalnum, $direction = 0) {
$start = $this->base->page_get_start($page, $pagesize, $totalnum);
$sqladd = '';
if($direction == 0) {
$sqladd = "f.uid='$uid'";
} elseif($direction == 1) {
$sqladd = "f.uid='$uid' AND f.direction='1'";
} elseif($direction == 2) {
$sqladd = "f.friendid='$uid' AND f.direction='1'";
} elseif($direction == 3) {
$sqladd = "f.uid='$uid' AND f.direction='3'";
}
if($sqladd) {
$data = $this->db->fetch_all("SELECT f.*, m.username FROM ".UC_DBTABLEPRE."friends f LEFT JOIN ".UC_DBTABLEPRE."members m ON f.friendid=m.uid WHERE $sqladd LIMIT $start, $pagesize");
return $data;
} else {
return array();
}
}
function is_friend($uid, $friendids, $direction = 0) {
$friendid_str = implode("', '", $friendids);
$sqladd = '';
if($direction == 0) {
$sqladd = "uid='$uid'";
} elseif($direction == 1) {
$sqladd = "uid='$uid' AND friendid IN ('$friendid_str') AND direction='1'";
} elseif($direction == 2) {
$sqladd = "friendid='$uid' AND uid IN ('$friendid_str') AND direction='1'";
} elseif($direction == 3) {
$sqladd = "uid='$uid' AND friendid IN ('$friendid_str') AND direction='3'";
}
if($this->db->result_first("SELECT COUNT(*) FROM ".UC_DBTABLEPRE."friends WHERE $sqladd") == count($friendids)) {
return true;
} else {
return false;
}
}
}
?>