700 lines
18 KiB
PHP
700 lines
18 KiB
PHP
<?php
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namespace Sookon\Article;
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use Sookon\Helpers\View as view;
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use Sookon\Helpers\Dbh as dbh;
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use Sookon\Helpers\PDO;
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use Sookon\Helpers\Config;
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use Sookon\Helpers\Table;
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use Zend\Http\PhpEnvironment\Request;
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use Zend\EventManager\EventManagerInterface;
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use Zend\EventManager\EventManager;
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use Zend\EventManager\EventManagerAwareInterface;
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use Sookon\Article\Listener\CategoryListener as Listener;
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class Category
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{
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private $db; //传入PDO对象
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private $config; //站点设置
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private $table;
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public $opt;
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protected $events = NULL;
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function __construct()
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{
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$this->db = new PDO;
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$this->config = Config::get();
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$this->table = new Table;
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$this->opt = new \stdClass();
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$this->opt->sort = "DESC";
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$this->opt->logic = "AND";
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$this->CategoryTable = $this->table->arc_category;
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$this->fld_left = "lft";
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$this->fld_right = "rgt";
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$this->fld_tid = "tid";
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$this->DeepTitle = "ROOTDEEP";
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$this->DataNewsCode = "datanews";
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$Listener = new Listener();
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$this->getEventManager()->attachAggregate($Listener);
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}
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public function setEventManager(EventManagerInterface $events)
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{
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$events->setIdentifiers(array(
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__CLASS__,
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get_called_class(),
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));
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$this->events = $events;
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return $this;
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}
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public function getEventManager()
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{
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if (NULL === $this->events) {
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$this->setEventManager(new EventManager());
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}
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return $this->events;
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}
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public function GetFullCategory()
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{
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return $this->GetCategory(0,'');
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}
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public function GetCategory($tid=0,$ptype='news'){
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$left = $this->fld_left;
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$right = $this->fld_right;
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$categoryTable = $this->CategoryTable;
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$tidField = $this->fld_tid;
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$whereSql = array();
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if(!empty($tid))
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{
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$sql = "SELECT $left,$right FROM $categoryTable
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WHERE id=$tid";
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$sth = $this->db->query($sql);
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$row = $sth->fetch();
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$whereSql[] = " $left BETWEEN {$row[$left]} AND {$row[$right]} ";
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}
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if(count($whereSql)>0)
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{
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$whereSql = " WHERE ".join(" AND ",$whereSql);
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}elseif ($ptype<>''){
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$whereSql = " where ptype='$ptype' ";
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} else
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$whereSql='';
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$sql = "SELECT *
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FROM $categoryTable
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$whereSql
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ORDER BY ptype ASC,$left ASC ";
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$sth = $this->db->query($sql);
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$rows = $sth->fetchAll();
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$stack = array();
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$categorys = array();
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foreach($rows as $k=>$v)
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{
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/*
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如果它是一个顶级栏目，则为它重置深度
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*/
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if(empty($v[$tidField]))
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{
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$stack = array();
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}else{
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if(count($stack) > 1)
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{
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/*
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在这个循环中必须追溯直至与其平级的分类
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while循环无法重写条件中已经改变的变量
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第一次max(array_keys($stack))赋值为当前深度
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循环中的第一个if里max(array_keys($stack))是重新统计，而非使用一定义的
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因为第二次循环到此时可能max(array_keys($stack))已经发生改变
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第三处max(array_keys($stack))表示第一个if中没有break掉的深度值，所以也不能使用赋过值的变量代替。
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加入brake 可使程序追溯至平级栏目即进行下一步操作
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必须是倒序循环，多个平级栏目时，如果是正序列循环会到第一个平级的栏目后停止循环
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*/
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for($i=max(array_keys($stack));$i>=0;$i--)
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if($v[$right]>$stack[max(array_keys($stack))])
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{
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if(count($stack)<1)
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{
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break;
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}
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if($v[$right]>$stack[max(array_keys($stack))])
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{
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array_pop($stack);
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}else{
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break;
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}
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}//end if
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}//end if
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}
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//放入输出数组
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$rows[$k][$this->DeepTitle] = count($stack);
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//将此节点加入栈中
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$stack[] = $v[$right];
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}// end foreach
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return $rows;
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}
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public function fetchAll()
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{
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$wheresql = array();
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if(isset($this->opt->where) && !empty($this->opt->where))
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$wheresql = array_merge($wheresql,$this->opt->where);
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if(count($wheresql)>0)
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{
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$wheresql = " WHERE ".join($wheresql," ".$this->opt->logic." ");
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}else{
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$wheresql = '';
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}
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if(!empty($this->opt->order))
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{
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$order = $this->opt->order;
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}else{
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$order = "id";
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}
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$sql = "select * from {$this->table->arc_article}
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$wheresql
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ORDER BY $order {$this->opt->sort} ";
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if(!empty($this->opt->start))
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{
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$sql .= " START {$this->opt->start} ";
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}
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if(!empty($this->opt->limit)){
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$sql .= " LIMIT {$this->opt->limit} ";
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}
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$rs = $this->db->query($sql);
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return $rs->fetchAll();
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}
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public function fetch($id)
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{
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if(is_numeric($id))
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{
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$sql = "SELECT * FROM {$this->table->arc_category} WHERE id=$id";
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}else{
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if(preg_match("/^[A-Za-z]+$/",$id))
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{
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$sql = "SELECT * FROM {$this->table->arc_category} WHERE code='$id'";
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}else{
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return false;
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}
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}
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$rs = $this->db->query($sql);
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return $rs->fetch();
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}
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public $ptype = array(
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"新闻" => "news",
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"想法" => "idea",
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"帮助" => "help",
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"关于" => "about"
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);
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public function getParam()
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{
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$request = new Request;
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$data = array(
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'title' => $request->getPost('title'),
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'ptype' => $request->getPost('ptype'),
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'tid' => (int)$request->getPost('fid'),
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'code' => $request->getPost('code'),
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);
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return $data;
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}
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//添加
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public function add($data,$id = 0)
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{
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$params = compact('data');
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$results = $this->getEventManager()->trigger('submit.checkParam', $this, $params);
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$cache_data = $results->last();
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if($cache_data !== true)
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{
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return $cache_data;
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}
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$results = $this->getEventManager()->trigger('submit.processData', $this, $params);
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$data = $results->last();
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$dbh = new dbh();
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if(empty($id))
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{
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$id = $dbh->insert($this->table->arc_category,$data,true);
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if(!empty($id) && is_numeric($id))
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{
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$this->getEventManager()->trigger('submit.recordPosted', $this, compact('params','data','id'));
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return true;
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}else{
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if($id === false)
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{
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return '服务器开小差了，请稍后再试';
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}else{
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return '服务器处理中遇到错误，请联系管理员';
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}
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}
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}//add
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else{
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if(!$dbh->update($this->table->arc_category,$data," id=$id ",true))
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{
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return "修改失败!请重试";
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}else{
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$this->getEventManager()->trigger('submit.recordChanged', $this, compact('params','data','id'));
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return true;
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}
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}//edit
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}// add()
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/**
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* Insert() 插入一个栏目
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* 返回数组 left=>左值 right=>右值
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*
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*
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* @param int $tid
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*
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* @return array
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*/
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function Insert($tid){
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$left = $this->fld_left;
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$right = $this->fld_right;
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$categoryTable = $this->CategoryTable;
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//分别处理有上级栏目和没上级栏目的
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if(!empty($tid))
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{
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$sql = "SELECT $right
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FROM $categoryTable
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WHERE id=$tid";
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$sth = $this->db->query($sql);
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$row = $sth->fetch();
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$right_start = $row[$right]-1;
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//更新所有右值
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$sql = "UPDATE $categoryTable SET $right=$right+2 WHERE $right>$right_start";
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$this->db->exec($sql);
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//更新所有左值
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$sql = "UPDATE $categoryTable SET $left=$left+2 WHERE $left>$right_start";
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$this->db->exec($sql);
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//返回应该插入的左右值
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$lft = $right_start + 1;
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$rgt = $lft + 1;
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return array(
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'left'=>$lft,
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'right'=>$rgt
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);
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}else{
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//取最大的右值
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$sql = "SELECT $right
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FROM $categoryTable
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WHERE tid=0
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ORDER BY $left DESC LIMIT 1";
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$sth = $this->db->query($sql);
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$row = $sth->fetch();
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$right_start = $row[$right]-1;
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if($right_start<1)
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{
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return array(
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'left'=>1,
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'right'=>2
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);
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}
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$lft = $right_start + 2;
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$rgt = $lft + 1;
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return array(
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'left'=>$lft,
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'right'=>$rgt
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);
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}
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}//Insert
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//移动栏目
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public function move($action,$id){
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if($action == 'up')
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{
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return $this->moveup($id);
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}
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if($action == "down")
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{
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return $this->movedown($id);
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}
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}
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//栏目上移
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public function moveup($id){
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$info = $this->fetch($id);
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$tid = $info[$this->fld_tid];
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$left = $info[$this->fld_left];
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$right = $info[$this->fld_right];
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$prev = $this->prevnode($tid,$left,$right);
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if($prev === NULL )
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{
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return "此栏目已位于平级栏目的顶端";
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}
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if(is_array($prev))
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{
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$this_fd = $right-$left;
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$this_ft = $left - $prev[$this->fld_left];
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$prve_fd = $prev[$this->fld_right] - $prev[$this->fld_left];
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$new_right = $prev[$this->fld_left] + $this_fd;
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$new_left = $right - $prve_fd;
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$prev_ft = $new_left - $prev[$this->fld_left];
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$exec = array(
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'success' => array(),
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'error' => array()
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);
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$sql_1 = "UPDATE ".$this->CategoryTable." SET
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".$this->fld_left."=".$prev[$this->fld_left].",".$this->fld_right."=".$new_right.
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" WHERE id=$id";
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$sql_2 = "UPDATE ".$this->CategoryTable." SET
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".$this->fld_left."=".$new_left.",".$this->fld_right."=".$right.
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" WHERE id=".$prev['id'];
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if($this->db->exec($sql_1))
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{
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$exec['success'][] = $info['title']."[$id] :移动成功!";
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}else{
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$exec['error'][] = $info['title']."[$id] :移动失败! 请手动在数据库中修改，目标左右值 ".$prev[$this->fld_left].":".$new_right;
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}
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if($this->db->exec($sql_2))
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{
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$exec['success'][] = $prev['title']."[".$prev['id']."] :移动成功!";
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}else{
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$exec['error'][] = $prev['title']."[".$prev['id']."] :移动失败! 请手动在数据库中修改，目标左右值 ".$new_left.":".$right;
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}
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$thisnode = $this->getSubNode($left,$right);
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$prevnode = $this->getSubNode($prev[$this->fld_left],$prev[$this->fld_right]);
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/*
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$a = array();
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echo $prev[$this->fld_left].':'.$prev[$this->fld_right]." - ".$left.":".$right;
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echo "<br />";
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echo $prev[$this->fld_left].':'.$new_right." - ".$new_left.":".$right;
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echo "<br />";
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*/
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if(!empty($thisnode))
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{
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foreach($thisnode as $k=>$v)
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{
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$node_new_left = ($v[$this->fld_left]-$this_ft);
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$fd = $v[$this->fld_right] - $v[$this->fld_left];
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$node_new_right = $node_new_left + $fd;
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/*
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echo ($v['lft']) .":". ($v['rgt'])."<br />";
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echo $node_new_left .":". $node_new_right."<br />";
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echo "<br />";
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*/
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$sql = "UPDATE ".$this->CategoryTable." SET
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".$this->fld_left."=".$node_new_left.",".$this->fld_right."=".$node_new_right.
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" WHERE id=".$v['id'];
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if($this->db->exec($sql))
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{
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$exec['success'][] = $info['title']."的子栏目".$v['title']."[".$v['id']."] :移动成功!";
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}else{
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$exec['error'][] = $info['title']."的子栏目".$v['title']."[".$v['id']."] :移动失败! 请手动在数据库中修改，目标左右值 ".$node_new_left.":".$node_new_right;
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}
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}
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}
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if(!empty($prevnode))
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{
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foreach($prevnode as $k=>$v)
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{
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$node_new_left = ($v[$this->fld_left]+$prev_ft);
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$fd = $v[$this->fld_right] - $v[$this->fld_left];
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$node_new_right = $node_new_left + $fd;
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/*
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echo ($v['lft']) .":". ($v['rgt'])."<br />";
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echo $node_new_left .":". $node_new_right."<br />";
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echo "<br />";
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*/
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$sql = "UPDATE ".$this->CategoryTable." SET
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".$this->fld_left."=".$node_new_left.",".$this->fld_right."=".$node_new_right.
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" WHERE id=".$v['id'];
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if($this->db->exec($sql))
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{
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$exec['success'][] = $prev['title']."的子栏目".$v['title']."[".$v['id']."] :移动成功!";
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}else{
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$exec['error'][] = $prev['title']."的子栏目".$v['title']."[".$v['id']."] :移动失败! 请手动在数据库中修改，目标左右值 ".$node_new_left.":".$node_new_right;
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}
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}
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}
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return $exec;
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}
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if(is_string($prev))
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{
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return $prev;
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}
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}//栏目上移
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//栏目下移
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public function movedown($id){
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$info = $this->fetch($id);
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$tid = $info[$this->fld_tid];
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$left = $info[$this->fld_left];
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$right = $info[$this->fld_right];
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$next = $this->nextnode($tid,$left,$right);
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if($next === NULL )
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{
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return "此栏目已位于平级栏目的末端";
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}
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if(is_array($next))
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{
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$this_fd = $right-$left;
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$next_fd = $next[$this->fld_right] - $next[$this->fld_left];
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$new_right = $left + $next_fd;
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$new_left = $next[$this->fld_right] - $this_fd;
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$this_ft = $new_left - $left;
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$next_ft = $next[$this->fld_left] - $left;
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//echo $id."[".$left .":".$right ."]-".$next['id']."[".$next[$this->fld_left].":".$next[$this->fld_right] . "]<br />";
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//echo $next['id']."[".$left .":".$new_right ."]-".$id."[".$new_left.":".$next[$this->fld_right]."]<br /><br />";
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$exec = array(
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'success' => array(),
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'error' => array()
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);
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$sql_1 = "UPDATE ".$this->CategoryTable." SET
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".$this->fld_left."=".$new_left.",".$this->fld_right."=".$next[$this->fld_right].
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" WHERE id=$id";
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$sql_2 = "UPDATE ".$this->CategoryTable." SET
|
||
".$this->fld_left."=".$left.",".$this->fld_right."=".$new_right.
|
||
" WHERE id=".$next['id'];
|
||
|
||
if($this->db->exec($sql_1))
|
||
{
|
||
$exec['success'][] = $info['title']."[$id] :移动成功!";
|
||
}else{
|
||
$exec['error'][] = $info['title']."[$id] :移动失败! 请手动在数据库中修改，目标左右值 ".$new_left.":".$next[$this->fld_right];
|
||
}
|
||
|
||
if($this->db->exec($sql_2))
|
||
{
|
||
$exec['success'][] = $next['title']."[".$next['id']."] :移动成功!";
|
||
}else{
|
||
$exec['error'][] = $next['title']."[".$next['id']."] :移动失败! 请手动在数据库中修改，目标左右值 ".$left.":".$this->fld_right;
|
||
}
|
||
|
||
$thisnode = $this->getSubNode($left,$right);
|
||
$nextnode = $this->getSubNode($next[$this->fld_left],$next[$this->fld_right]);
|
||
|
||
if(!empty($thisnode))
|
||
{
|
||
foreach($thisnode as $k=>$v)
|
||
{
|
||
$node_new_left = ($v[$this->fld_left]+$this_ft);
|
||
$fd = $v[$this->fld_right] - $v[$this->fld_left];
|
||
$node_new_right = $node_new_left + $fd;
|
||
|
||
/*echo ($v['lft']) .":". ($v['rgt'])."<br />";
|
||
echo $node_new_left .":". $node_new_right."<br />";
|
||
echo "<br />";*/
|
||
|
||
$sql = "UPDATE ".$this->CategoryTable." SET
|
||
".$this->fld_left."=".$node_new_left.",".$this->fld_right."=".$node_new_right.
|
||
" WHERE id=".$v['id'];
|
||
if($this->db->exec($sql))
|
||
{
|
||
$exec['success'][] = $info['title']."的子栏目".$v['title']."[".$v['id']."] :移动成功!";
|
||
}else{
|
||
$exec['error'][] = $info['title']."的子栏目".$v['title']."[".$v['id']."] :移动失败! 请手动在数据库中修改，目标左右值 ".$node_new_left.":".$node_new_right;
|
||
}
|
||
}
|
||
}
|
||
|
||
if(!empty($nextnode))
|
||
{
|
||
foreach($nextnode as $k=>$v)
|
||
{
|
||
$node_new_left = ($v[$this->fld_left] - $next_ft);
|
||
$fd = $v[$this->fld_right] - $v[$this->fld_left];
|
||
$node_new_right = $node_new_left + $fd;
|
||
|
||
/*echo ($v['lft']) .":". ($v['rgt'])."<br />";
|
||
echo $node_new_left .":". $node_new_right."<br />";
|
||
echo "<br />";*/
|
||
|
||
$sql = "UPDATE ".$this->CategoryTable." SET
|
||
".$this->fld_left."=".$node_new_left.",".$this->fld_right."=".$node_new_right.
|
||
" WHERE id=".$v['id'];
|
||
if($this->db->exec($sql))
|
||
{
|
||
$exec['success'][] = $info['title']."的子栏目".$v['title']."[".$v['id']."] :移动成功!";
|
||
}else{
|
||
$exec['error'][] = $info['title']."的子栏目".$v['title']."[".$v['id']."] :移动失败! 请手动在数据库中修改，目标左右值 ".$node_new_left.":".$node_new_right;
|
||
}
|
||
}
|
||
}
|
||
|
||
return $exec;
|
||
}
|
||
|
||
if(is_string($next))
|
||
{
|
||
return $next;
|
||
}
|
||
}//栏目下移
|
||
|
||
//获得子栏目
|
||
public function getSubNode($left,$right,$data = NULL)
|
||
{
|
||
if(empty($data))
|
||
{
|
||
$sql = "SELECT * FROM ".$this->CategoryTable." WHERE ".$this->fld_left.">$left AND ".$this->fld_right."<$right ORDER BY ".$this->fld_left." ASC";
|
||
$rs = $this->db->query($sql);
|
||
$SN = $rs->fetchAll();
|
||
}else{
|
||
$SN = array();
|
||
foreach($data as $k=>$v)
|
||
{
|
||
if($left < $v[$this->fld_left] && $v[$this->fld_right] < $right)
|
||
$SN[] = $data[$k];
|
||
}
|
||
}
|
||
return $SN;
|
||
}
|
||
|
||
//获取子栏目中的最大右值
|
||
public function getMaxSubRight($left,$right){
|
||
$sql = "SELECT max(".$this->fld_right.") as mx FROM ".$this->CategoryTable." WHERE ".$this->fld_left.">".$left." AND ".$this->fld_right."<".$right;
|
||
$rs = $this->db->query($sql);
|
||
$row = $rs->fetch();
|
||
return $row['mx'];
|
||
}
|
||
|
||
//获取平级栏目中的上一个栏目
|
||
public function prevnode($tid,$left,$right)
|
||
{
|
||
$sql = "SELECT * FROM ".$this->CategoryTable." WHERE
|
||
".$this->fld_tid."=$tid AND
|
||
".$this->fld_left."<$left AND
|
||
".$this->fld_right."<$right
|
||
ORDER BY ".$this->fld_left." DESC
|
||
LIMIT 1
|
||
";
|
||
$rs = $this->db->query($sql);
|
||
$row = $rs->fetch();
|
||
|
||
if(empty($row))
|
||
{
|
||
return NULL;
|
||
}
|
||
|
||
return $row;
|
||
}
|
||
|
||
//获取平级栏目中的下一个栏目
|
||
public function nextnode($tid,$left,$right)
|
||
{
|
||
$sql = "SELECT * FROM ".$this->CategoryTable." WHERE
|
||
".$this->fld_tid."=$tid AND
|
||
".$this->fld_left.">$left AND
|
||
".$this->fld_right.">$right
|
||
ORDER BY ".$this->fld_left." ASC
|
||
LIMIT 1
|
||
";
|
||
$rs = $this->db->query($sql);
|
||
$row = $rs->fetch();
|
||
|
||
if(empty($row))
|
||
{
|
||
return NULL;
|
||
}
|
||
|
||
return $row;
|
||
}
|
||
|
||
//删除某个栏目
|
||
public function del($id)
|
||
{
|
||
if(empty($id) || !is_numeric($id))
|
||
{
|
||
return "参数错误";
|
||
}
|
||
|
||
$cate = $this->fetch($id);
|
||
|
||
if($cate[$this->fld_right] - $cate[$this->fld_left] > 1)
|
||
{
|
||
return "此栏目包含子栏目，不能直接删除，需要先删除子栏目";
|
||
}
|
||
|
||
$sql = "DELETE FROM ".$this->CategoryTable." WHERE id=$id";
|
||
if($this->db->exec($sql))
|
||
{
|
||
$sql = "UPDATE ".$this->CategoryTable.
|
||
" SET ".$this->fld_right."=".$this->fld_right."-2".
|
||
" WHERE ".$this->fld_right.">".$cate[$this->fld_right];
|
||
|
||
$sql2 = "UPDATE ".$this->CategoryTable.
|
||
" SET ".$this->fld_left."=".$this->fld_left."-2".
|
||
" WHERE ".$this->fld_left.">".$cate[$this->fld_left];
|
||
|
||
if($this->db->exec($sql) || $this->db->exec($sql2))
|
||
return true;
|
||
else
|
||
return false;
|
||
}
|
||
}
|
||
} |