catalog_id //分类的自然序号
catalog_uid //分类的父分类
catalog_name //分类名
catalog_path_number //亲缘树数字形式 0:1:2
catalog_path_char //亲缘树字符形式 分类1:分类1.1:分类1.1.1

========================================================*/
class catalog{
var config;
var catalog_dbname;
var links;
private function connect(){
this->links = mysql_connect(this->config['host'],this->config['user'],this->config['pass']) or die("错误: 第".__LINE__."行<br>".mysql_error());
mysql_select_db(this->config['dbname'],this->links);
mysql_query("SET NAMES gb2312");
}
function catalog_show(uid = 0){
this->connect();
sql = "SELECT * FROM ".this->catalog_dbname. "
WHERE catalog_uid = ". uid ."
ORDER BY catalog_id ";
result = mysql_query(sql,this->links) or die("错误: 第".__LINE__."行<br>".mysql_error());
if(mysql_num_rows(result) > 0){
while (row = mysql_fetch_assoc(result)){
if(this->sun_catalog(row['catalog_id'])){//判断有没有子分类
cata_img = "<img id = 'img".row['catalog_id']."' src='./img/last_node.jpg' ōnclick='click_catalog(".row['catalog_id'].")'/>";
}else{
cata_img = "<img src='./img/sp.jpg'/>";
}
path = explode(":",row['catalog_path_number']);
if(count(path) > 1){
for(i=1;i<count(path);i++){
path_img .= "<img src='./img/sp.jpg'/>";
}
}
echo path_img.cata_img;
echo "<a class='menu' href = 'javascrīpt:send_id(".row['catalog_id'].")'>";
echo row['catalog_name']."</a><br>";
path_img = "";
if(this->sun_catalog(row['catalog_id'])){
hidden_div = "style='display:none'";
echo "<div id = 'div".row['catalog_id']."' ".hidden_div.">";
this->catalog_show(row['catalog_id']);
echo "</div>";
}
}
}
}
private function sun_catalog(uid){//判断是否有子分类
sql = "SELECT * FROM ".this->catalog_dbname. "
WHERE catalog_uid = ". uid ."
ORDER BY catalog_id ";
result = mysql_query(sql,this->links) or die("错误: 第".__LINE__."行<br>".mysql_error());
if(mysql_num_rows(result) > 0){
return true;
}else{
return false;
}
}
function catalog_add(uid,name){
//获取父id的亲缘树
this->connect();
sql = "SELECT * FROM ".this->catalog_dbname."
WHERE catalog_id = '".uid."'";
result = mysql_query(sql,this->links)
or die("错误: 第".__LINE__."行<br>".mysql_error());
row = mysql_fetch_assoc(result);
fid_path_number = row['catalog_path_number'];//id的数字亲缘树
fid_path_char = row['catalog_path_char'];//id的字符亲缘树
//插入数据 先插入行->再找到最新插入的id, 在依据这个id进行修改
sql = "INSERT INTO ".this->catalog_dbname."(catalog_uid,catalog_name)
VALUES(".uid.",'".name."')";
result = mysql_query(sql,this->links)
or die("错误: 第".__LINE__."行<br>".mysql_error());
catalog_id = mysql_insert_id();//获取自己的id
catalog_path_number = fid_path_number.":".catalog_id;//得到自己的数字亲缘数
catalog_path_char = fid_path_char.":".name;//得到自己的字符亲缘数
sql = "UPDATE '".this->catalog_dbname."'
SET
catalog_path_number = '".catalog_path_number."',
catalog_path_char = '".catalog_path_char."'
WHERE
catalog_id = ".catalog_id;
mysql_query(sql,this->links)
or die("错误: 第".__LINE__."行<br>".mysql_error());
}
function catalog_del(id){
this->connect();
sql = "DELETE FROM ".this->catalog_dbname."
WHERE catalog_id = ".id;
mysql_query(sql,this->links)
or die("错误: 第".__LINE__."行<br>".mysql_error());
}
function catalog_set(id,name){
this->connect();
sql = "UPDATE ".this->catalog_dbname."
SET
catalog_name = '".name."'
WHERE
catalog_id = ".id;
mysql_query(sql,this->links)
or die("错误: 第".__LINE__."行<br>".mysql_error());
}
}
?>
[/CODE]