2146 lines
57 KiB
PHP
2146 lines
57 KiB
PHP
<?php
|
||
/**
|
||
* ZenTaoPHP的dao和sql类。
|
||
* The dao and sql class file of ZenTaoPHP framework.
|
||
*
|
||
* The author disclaims copyright to this source code. In place of
|
||
* a legal notice, here is a blessing:
|
||
*
|
||
* May you do good and not evil.
|
||
* May you find forgiveness for yourself and forgive others.
|
||
* May you share freely, never taking more than you give.
|
||
*/
|
||
|
||
/**
|
||
* DAO类。
|
||
* DAO, data access object.
|
||
*
|
||
* @package framework
|
||
*/
|
||
class baseDAO
|
||
{
|
||
/* Use these strang strings to avoid conflicting with these keywords in the sql body. */
|
||
const WHERE = 'wHeRe';
|
||
const GROUPBY = 'gRoUp bY';
|
||
const HAVING = 'hAvInG';
|
||
const ORDERBY = 'oRdEr bY';
|
||
const LIMIT = 'lImiT';
|
||
|
||
/**
|
||
* 全局对象$app
|
||
* The global app object.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $app;
|
||
|
||
/**
|
||
* 全局对象$config
|
||
* The global config object.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $config;
|
||
|
||
/**
|
||
* 全局对象$lang
|
||
* The global lang object.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $lang;
|
||
|
||
/**
|
||
* 全局对象$dbh
|
||
* The global dbh(database handler) object.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $dbh;
|
||
|
||
/**
|
||
* 全局对象$slaveDBH。
|
||
* The global slaveDBH(database handler) object.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $slaveDBH;
|
||
|
||
/**
|
||
* sql对象，用于生成sql语句。
|
||
* The sql object, used to create the query sql.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $sqlobj;
|
||
|
||
/**
|
||
* 正在使用的表。
|
||
* The table of current query.
|
||
*
|
||
* @var string
|
||
* @access public
|
||
*/
|
||
public $table;
|
||
|
||
/**
|
||
* $this->table的别名。
|
||
* The alias of $this->table.
|
||
*
|
||
* @var string
|
||
* @access public
|
||
*/
|
||
public $alias;
|
||
|
||
/**
|
||
* 查询的字段。
|
||
* The fields will be returned.
|
||
*
|
||
* @var string
|
||
* @access public
|
||
*/
|
||
public $fields;
|
||
|
||
/**
|
||
* 查询模式，raw模式用于正常的select update等sql拼接操作，magic模式用于findByXXX等魔术方法。
|
||
* The query mode, raw or magic.
|
||
*
|
||
* This var is used to diff dao::from() with sql::from().
|
||
*
|
||
* @var string
|
||
* @access public
|
||
*/
|
||
public $mode;
|
||
|
||
/**
|
||
* 执行方式：insert, select, update, delete, replace。
|
||
* The query method: insert, select, update, delete, replace.
|
||
*
|
||
* @var string
|
||
* @access public
|
||
*/
|
||
public $method;
|
||
|
||
/**
|
||
* 是否自动增加lang条件。
|
||
* If auto add lang statement.
|
||
*
|
||
* @var bool
|
||
* @access public
|
||
*/
|
||
public $autoLang;
|
||
|
||
/**
|
||
* 执行的请求，所有的查询都保存在该数组。
|
||
* The queries executed. Every query will be saved in this array.
|
||
*
|
||
* @var array
|
||
* @access public
|
||
*/
|
||
static public $querys = array();
|
||
|
||
/**
|
||
* 存放错误的数组。
|
||
* The errors.
|
||
*
|
||
* @var array
|
||
* @access public
|
||
*/
|
||
static public $errors = array();
|
||
|
||
/**
|
||
* 缓存。
|
||
* The cache.
|
||
*
|
||
* @var array
|
||
* @access public
|
||
*/
|
||
static public $cache = array();
|
||
|
||
/**
|
||
* 构造方法。
|
||
* The construct method.
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function __construct()
|
||
{
|
||
global $app, $config, $lang, $dbh, $slaveDBH;
|
||
$this->app = $app;
|
||
$this->config = $config;
|
||
$this->lang = $lang;
|
||
$this->dbh = $dbh;
|
||
$this->slaveDBH = $slaveDBH ? $slaveDBH : false;
|
||
|
||
$this->reset();
|
||
}
|
||
|
||
/**
|
||
* 设置$table属性。
|
||
* Set the $table property.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function setTable($table)
|
||
{
|
||
$this->table = $table;
|
||
}
|
||
|
||
/**
|
||
* 设置$alias属性。
|
||
* Set the $alias property.
|
||
*
|
||
* @param string $alias
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function setAlias($alias)
|
||
{
|
||
$this->alias = $alias;
|
||
}
|
||
|
||
/**
|
||
* 设置$fields属性。
|
||
* Set the $fields property.
|
||
*
|
||
* @param string $fields
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function setFields($fields)
|
||
{
|
||
$this->fields = $fields;
|
||
}
|
||
|
||
/**
|
||
* 设置autoLang项。
|
||
* Set autoLang item.
|
||
*
|
||
* @param bool $autoLang
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function setAutoLang($autoLang)
|
||
{
|
||
$this->autoLang = $autoLang;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 重置属性。
|
||
* Reset the vars.
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function reset()
|
||
{
|
||
$this->setFields('');
|
||
$this->setTable('');
|
||
$this->setAlias('');
|
||
$this->setMode('');
|
||
$this->setMethod('');
|
||
$this->setAutoLang(isset($this->config->framework->autoLang) and $this->config->framework->autoLang);
|
||
}
|
||
|
||
//-----根据请求的方式，调用sql类相应的方法(Call according method of sql class by query method. -----//
|
||
|
||
/**
|
||
* 设置请求模式。像findByxxx之类的方法，使用的是magic模式；其他方法使用的是raw模式。
|
||
* Set the query mode. If the method if like findByxxx, the mode is magic. Else, the mode is raw.
|
||
*
|
||
* @param string $mode magic|raw
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function setMode($mode = '')
|
||
{
|
||
$this->mode = $mode;
|
||
}
|
||
|
||
/**
|
||
* 设置请求方法：select|update|insert|delete|replace 。
|
||
* Set the query method: select|update|insert|delete|replace
|
||
*
|
||
* @param string $method
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function setMethod($method = '')
|
||
{
|
||
$this->method = $method;
|
||
}
|
||
|
||
/**
|
||
* 开始事务。
|
||
* Begin Transaction
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function begin()
|
||
{
|
||
$this->dbh->beginTransaction();
|
||
}
|
||
|
||
/**
|
||
* 事务回滚。
|
||
* Roll back
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function rollBack()
|
||
{
|
||
$this->dbh->rollBack();
|
||
}
|
||
|
||
/**
|
||
* 提交事务。
|
||
* Commits a transaction.
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function commit()
|
||
{
|
||
$this->dbh->commit();
|
||
}
|
||
|
||
/**
|
||
* select方法，调用sql::select()。
|
||
* The select method, call sql::select().
|
||
*
|
||
* @param string $fields
|
||
* @access public
|
||
* @return static|sql|baseDAO the dao object self.
|
||
*/
|
||
public function select($fields = '*')
|
||
{
|
||
$this->setMode('raw');
|
||
$this->setMethod('select');
|
||
$this->sqlobj = sql::select($fields);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 获取查询记录条数。
|
||
* The count method, call sql::select() and from().
|
||
* use as $this->dao->select()->from(TABLE_BUG)->where()->count();
|
||
*
|
||
* @param string $distinctField
|
||
* @access public
|
||
* @return int
|
||
*/
|
||
public function count($distinctField = '')
|
||
{
|
||
/* 获得SELECT，FROM的位置，使用count(*)替换其字段。 */
|
||
/* Get the SELECT, FROM position, thus get the fields, replace it by count(*). */
|
||
$sql = $this->get();
|
||
$selectPOS = strpos($sql, 'SELECT') + strlen('SELECT');
|
||
$fromPOS = strpos($sql, 'FROM');
|
||
$fields = substr($sql, $selectPOS, $fromPOS - $selectPOS);
|
||
$countField = $distinctField ? 'distinct ' . $distinctField : '*';
|
||
$sql = str_replace($fields, " COUNT($countField) AS recTotal ", substr($sql, 0, $fromPOS)) . substr($sql, $fromPOS);
|
||
|
||
/*
|
||
* 去掉SQL语句中order和limit之后的部分。
|
||
* Remove the part after order and limit.
|
||
**/
|
||
$subLength = strlen($sql);
|
||
$groupPOS = strripos($sql, 'group by');
|
||
$orderPOS = strripos($sql, 'order by');
|
||
$limitPOS = strripos($sql, 'limit');
|
||
if($limitPOS) $subLength = $limitPOS;
|
||
if($orderPOS) $subLength = $orderPOS;
|
||
if($groupPOS) $subLength = $groupPOS;
|
||
$sql = substr($sql, 0, $subLength);
|
||
self::$querys[] = $sql;
|
||
|
||
/*
|
||
* 获取记录数。
|
||
* Get the records count.
|
||
**/
|
||
try
|
||
{
|
||
$row = $this->dbh->query($sql)->fetch(PDO::FETCH_OBJ);
|
||
}
|
||
catch (PDOException $e)
|
||
{
|
||
$this->sqlError($e);
|
||
}
|
||
|
||
return is_object($row) ? $row->recTotal : 0;
|
||
}
|
||
|
||
/**
|
||
* update方法，调用sql::update()。
|
||
* The update method, call sql::update().
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function update($table)
|
||
{
|
||
$this->setMode('raw');
|
||
$this->setMethod('update');
|
||
$this->sqlobj = sql::update($table);
|
||
$this->setTable($table);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* delete方法，调用sql::delete()。
|
||
* The delete method, call sql::delete().
|
||
*
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function delete()
|
||
{
|
||
$this->setMode('raw');
|
||
$this->setMethod('delete');
|
||
$this->sqlobj = sql::delete();
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* insert方法，调用sql::insert()。
|
||
* The insert method, call sql::insert().
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function insert($table)
|
||
{
|
||
$this->setMode('raw');
|
||
$this->setMethod('insert');
|
||
$this->sqlobj = sql::insert($table);
|
||
$this->setTable($table);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* replace方法，调用sql::replace()。
|
||
* The replace method, call sql::replace().
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function replace($table)
|
||
{
|
||
$this->setMode('raw');
|
||
$this->setMethod('replace');
|
||
$this->sqlobj = sql::replace($table);
|
||
$this->setTable($table);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 设置要操作的表。
|
||
* Set the from table.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function from($table)
|
||
{
|
||
$this->setTable($table);
|
||
if($this->mode == 'raw') $this->sqlobj->from($table);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 设置字段。
|
||
* Set the fields.
|
||
*
|
||
* @param string $fields
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function fields($fields)
|
||
{
|
||
$this->setFields($fields);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 表别名，相当于sql里的AS。（as是php的关键词，使用alias代替）
|
||
* Alias a table, equal the AS keyword. (Don't use AS, because it's a php keyword.)
|
||
*
|
||
* @param string $alias
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function alias($alias)
|
||
{
|
||
if(empty($this->alias)) $this->setAlias($alias);
|
||
$this->sqlobj->alias($alias);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 设置需要更新或插入的数据。
|
||
* Set the data to update or insert.
|
||
*
|
||
* @param object $data the data object or array
|
||
* @param string $skipFields the skip fields
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function data($data, $skipFields = '')
|
||
{
|
||
if(!is_object($data)) $data = (object)$data;
|
||
if($this->autoLang and !isset($data->lang))
|
||
{
|
||
$data->lang = $this->app->getClientLang();
|
||
if(isset($this->app->config->cn2tw) and $this->app->config->cn2tw and $data->lang == 'zh-tw') $data->lang = 'zh-cn';
|
||
if(defined('RUN_MODE') and RUN_MODE == 'front' and !empty($this->app->config->cn2tw)) $data->lang = str_replace('zh-tw', 'zh-cn', $data->lang);
|
||
}
|
||
|
||
$this->sqlobj->data($data, $skipFields);
|
||
return $this;
|
||
}
|
||
|
||
//-------------------- sql相关的方法(The sql related method) --------------------//
|
||
|
||
/**
|
||
* 获取sql字符串。
|
||
* Get the sql string.
|
||
*
|
||
* @access public
|
||
* @return string the sql string after process.
|
||
*/
|
||
public function get()
|
||
{
|
||
return $this->processKeywords($this->processSQL(false));
|
||
}
|
||
|
||
/**
|
||
* 打印sql字符串。
|
||
* Print the sql string.
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function printSQL()
|
||
{
|
||
echo $this->processSQL();
|
||
}
|
||
|
||
/**
|
||
* 解析SQL语句。
|
||
* Explain sql.
|
||
*
|
||
* @param string $sql
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function explain($sql = '')
|
||
{
|
||
$sql = empty($sql) ? $this->processSQL() : $sql;
|
||
$result = $this->dbh->query('explain ' . $sql)->fetch();
|
||
a($result);
|
||
}
|
||
|
||
/**
|
||
* 处理sql语句，替换表和字段。
|
||
* Process the sql, replace the table, fields.
|
||
*
|
||
* @access public
|
||
* @return string the sql string after process.
|
||
*/
|
||
public function processSQL($record = true)
|
||
{
|
||
$sql = $this->sqlobj->get();
|
||
|
||
/**
|
||
* 如果是magic模式，处理表和字段。
|
||
* If the mode is magic, process the $fields and $table.
|
||
**/
|
||
if($this->mode == 'magic')
|
||
{
|
||
if($this->fields == '') $this->fields = '*';
|
||
if($this->table == '') $this->app->triggerError('Must set the table name', __FILE__, __LINE__, $exit = true);
|
||
$sql = sprintf($this->sqlobj->get(), $this->fields, $this->table);
|
||
}
|
||
|
||
/* If the method is select, update or delete, set the lang condition. */
|
||
if($this->autoLang and $this->table != '' and $this->method != 'insert' and $this->method != 'replace')
|
||
{
|
||
$lang = $this->app->getClientLang();
|
||
|
||
/* Get the position to insert lang = ?. */
|
||
$wherePOS = strrpos($sql, DAO::WHERE); // The position of WHERE keyword.
|
||
$groupPOS = strrpos($sql, DAO::GROUPBY); // The position of GROUP BY keyword.
|
||
$havingPOS = strrpos($sql, DAO::HAVING); // The position of HAVING keyword.
|
||
$orderPOS = strrpos($sql, DAO::ORDERBY); // The position of ORDERBY keyword.
|
||
$limitPOS = strrpos($sql, DAO::LIMIT); // The position of LIMIT keyword.
|
||
$splitPOS = $orderPOS ? $orderPOS : $limitPOS; // If $orderPOS, use it instead of $limitPOS.
|
||
$splitPOS = $havingPOS ? $havingPOS : $splitPOS; // If $havingPOS, use it instead of $orderPOS.
|
||
$splitPOS = $groupPOS ? $groupPOS : $splitPOS; // If $groupPOS, use it instead of $havingPOS.
|
||
|
||
/* Set the condition to be appended. */
|
||
$tableName = !empty($this->alias) ? $this->alias : $this->table;
|
||
|
||
if(!empty($this->app->config->cn2tw)) $lang = str_replace('zh-tw', 'zh-cn', $lang);
|
||
|
||
$langCondition = " $tableName.lang in('{$lang}', 'all') ";
|
||
|
||
/* If $splitPOS > 0, split the sql at $splitPOS. */
|
||
if($splitPOS)
|
||
{
|
||
$firstPart = substr($sql, 0, $splitPOS);
|
||
$lastPart = substr($sql, $splitPOS);
|
||
if($wherePOS)
|
||
{
|
||
$sql = $firstPart . " AND $langCondition " . $lastPart;
|
||
}
|
||
else
|
||
{
|
||
$sql = $firstPart . " WHERE $langCondition " . $lastPart;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
$sql .= $wherePOS ? " AND $langCondition" : " WHERE $langCondition";
|
||
}
|
||
}
|
||
|
||
if($record) self::$querys[] = $this->processKeywords($sql);
|
||
return $sql;
|
||
}
|
||
|
||
/**
|
||
* 替换sql常量关键字。
|
||
* Process the sql keywords, replace the constants to normal.
|
||
*
|
||
* @param string $sql
|
||
* @access public
|
||
* @return string the sql string.
|
||
*/
|
||
public function processKeywords($sql)
|
||
{
|
||
return str_replace(array(DAO::WHERE, DAO::GROUPBY, DAO::HAVING, DAO::ORDERBY, DAO::LIMIT), array('WHERE', 'GROUP BY', 'HAVING', 'ORDER BY', 'LIMIT'), $sql);
|
||
}
|
||
|
||
//-------------------- 查询相关方法(Query related methods) --------------------//
|
||
|
||
/**
|
||
* 设置$dbh，数据库连接句柄。
|
||
* Set the dbh.
|
||
*
|
||
* You can use like this: $this->dao->dbh($dbh), thus you can handle two database.
|
||
*
|
||
* @param object $dbh
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function dbh($dbh)
|
||
{
|
||
$this->dbh = $dbh;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 执行SQL语句，返回PDOStatement结果集。
|
||
* Query the sql, return the statement object.
|
||
*
|
||
* @access public
|
||
* @return static|sql the PDOStatement object.
|
||
*/
|
||
public function query($sql = '')
|
||
{
|
||
/* 如果有错误，返回一个空的PDOStatement对象，确保后续方法能够执行。*/
|
||
/* If any error, return an empty statement object to make sure the remain method to execute. */
|
||
if(!empty(dao::$errors)) return new PDOStatement();
|
||
|
||
if($sql)
|
||
{
|
||
$sql = trim($sql);
|
||
$sqlMethod = strtolower(substr($sql, 0, strpos($sql, ' ')));
|
||
$this->setMethod($sqlMethod);
|
||
$this->sqlobj = new sql();
|
||
$this->sqlobj->sql = $sql;
|
||
}
|
||
else
|
||
{
|
||
$sql = $this->processSQL();
|
||
}
|
||
|
||
try
|
||
{
|
||
$method = $this->method;
|
||
$this->reset();
|
||
|
||
if($this->slaveDBH and $method == 'select')
|
||
{
|
||
return $this->slaveDBH->query($sql);
|
||
}
|
||
else
|
||
{
|
||
return $this->dbh->query($sql);
|
||
}
|
||
}
|
||
catch (PDOException $e)
|
||
{
|
||
$this->sqlError($e);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 返回SQL结果的所有字段信息。
|
||
* Return the fields meta of PDOStatement.
|
||
*
|
||
* @param string|PDOStatement $stmt
|
||
* @access public
|
||
* @return array
|
||
*/
|
||
public function getColumns($stmt)
|
||
{
|
||
/* 如果$stmt是SQL查询语句，先执行查询获得 PDO stmt. */
|
||
/* If $stmt is a SQL string, query to get PDO stmt. */
|
||
if(is_string($stmt)) $stmt = $this->query($stmt);
|
||
|
||
try
|
||
{
|
||
$columns = array();
|
||
for($columnIndex = 0; $columnIndex < $stmt->columnCount(); $columnIndex++)
|
||
{
|
||
$columns[] = $stmt->getColumnMeta($columnIndex);
|
||
}
|
||
|
||
return $columns;
|
||
}
|
||
catch (PDOException $e)
|
||
{
|
||
$this->sqlError($e);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 将记录进行分页，自动设置limit语句。
|
||
* Page the records, set the limit part auto.
|
||
*
|
||
* @param object $pager
|
||
* @param string $distinctField
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function page($pager, $distinctField = '')
|
||
{
|
||
if(!is_object($pager)) return $this;
|
||
|
||
/*
|
||
* 重新计算分页数据，并判断是否需要返回上一页。
|
||
* Calculate pagination to determine whether to return to the previous page.
|
||
*/
|
||
$originalPageID = $pager->pageID;
|
||
$recTotal = $this->count($distinctField);
|
||
|
||
$pager->setRecTotal($recTotal);
|
||
$pager->setPageTotal();
|
||
if($originalPageID > $pager->pageTotal) $pager->setPageID($pager->pageTotal);
|
||
|
||
$this->sqlobj->limit($pager->limit());
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 执行SQL。query()会返回stmt对象，该方法只返回更改或删除的记录数。
|
||
* Execute the sql. It's different with query(), which return the stmt object. But this not.
|
||
*
|
||
* @param string $sql
|
||
* @access public
|
||
* @return int the modified or deleted records. 更改或删除的记录数。
|
||
*/
|
||
public function exec($sql = '')
|
||
{
|
||
if(!empty(dao::$errors)) return new PDOStatement(); // If any error, return an empty statement object to make sure the remain method to execute.
|
||
|
||
if($sql)
|
||
{
|
||
$this->sqlobj = new sql();
|
||
$this->sqlobj->sql = $sql;
|
||
}
|
||
else
|
||
{
|
||
$sql = $this->processSQL();
|
||
}
|
||
|
||
try
|
||
{
|
||
if($this->table) unset(dao::$cache[$this->table]);
|
||
$this->reset();
|
||
return $this->dbh->exec($sql);
|
||
}
|
||
catch (PDOException $e)
|
||
{
|
||
$this->sqlError($e);
|
||
}
|
||
}
|
||
|
||
//-------------------- Fetch相关方法(Fetch related methods) -------------------//
|
||
|
||
/**
|
||
* 获取一个记录。
|
||
* Fetch one record.
|
||
*
|
||
* @param string $field 如果已经设置获取的字段，则只返回这个字段的值，否则返回这个记录。
|
||
* if the field is set, only return the value of this field, else return this record
|
||
* @access public
|
||
* @return object|mixed
|
||
*/
|
||
public function fetch($field = '')
|
||
{
|
||
$sql = $this->processSQL();
|
||
$table = $this->table;
|
||
$key = 'fetch-' . md5($sql . $field);
|
||
if(isset(dao::$cache[$table][$key]))
|
||
{
|
||
if(empty($field)) return $this->getRow(dao::$cache[$table][$key]);
|
||
|
||
$result = dao::$cache[$table][$key];
|
||
return $result ? $result->$field : '';
|
||
}
|
||
|
||
if(empty($field))
|
||
{
|
||
$data = $this->query($sql)->fetch();
|
||
dao::$cache[$table][$key] = $data;
|
||
return $this->getRow($data);
|
||
}
|
||
|
||
$this->setFields($field);
|
||
$result = $this->query($sql)->fetch(PDO::FETCH_OBJ);
|
||
dao::$cache[$table][$key] = $this->getRow($result);
|
||
return $result ? $result->$field : '';
|
||
}
|
||
|
||
/**
|
||
* 获取所有记录。
|
||
* Fetch all records.
|
||
*
|
||
* @param string $keyField 返回以该字段做键的记录
|
||
* the key field, thus the return records is keyed by this field
|
||
* @access public
|
||
* @return array the records
|
||
*/
|
||
public function fetchAll($keyField = '')
|
||
{
|
||
$sql = $this->processSQL();
|
||
$table = $this->table;
|
||
$key = 'fetchAll-' . md5($sql . $keyField);
|
||
if(isset(dao::$cache[$table][$key]))
|
||
{
|
||
$rows = dao::$cache[$table][$key];
|
||
$result = array();
|
||
foreach($rows as $i => $row) $result[$i] = $this->getRow($row);
|
||
return $result;
|
||
}
|
||
|
||
$stmt = $this->query($sql);
|
||
dao::$cache[$table][$key] = array();
|
||
if(empty($keyField))
|
||
{
|
||
$rows = $stmt->fetchAll();
|
||
$result = array();
|
||
dao::$cache[$table][$key] = $rows;
|
||
foreach($rows as $i => $row) $result[$i] = $this->getRow($row);
|
||
return $result;
|
||
}
|
||
|
||
$rows = array();
|
||
while($row = $stmt->fetch())
|
||
{
|
||
dao::$cache[$table][$key][$row->$keyField] = $row;
|
||
$rows[$row->$keyField] = $this->getRow($row);
|
||
}
|
||
|
||
return $rows;
|
||
}
|
||
|
||
/**
|
||
* 获取所有记录并将按照字段分组。
|
||
* Fetch all records and group them by one field.
|
||
*
|
||
* @param string $groupField 分组的字段 the field to group by
|
||
* @param string $keyField 键字段 the field of key
|
||
* @access public
|
||
* @return array the records.
|
||
*/
|
||
public function fetchGroup($groupField, $keyField = '')
|
||
{
|
||
$sql = $this->processSQL();
|
||
$table = $this->table;
|
||
$key = 'fetchGroup-' . md5($sql . $groupField . $keyField);
|
||
if(isset(dao::$cache[$table][$key]))
|
||
{
|
||
$result = array();
|
||
$groupRows = dao::$cache[$table][$key];
|
||
foreach($groupRows as $groupField => $rows)
|
||
{
|
||
foreach($rows as $keyField => $row) $result[$groupField][$keyField] = $this->getRow($row);
|
||
}
|
||
return $result;
|
||
}
|
||
|
||
$stmt = $this->query($sql);
|
||
$rows = array();
|
||
while($row = $stmt->fetch())
|
||
{
|
||
empty($keyField) ? $rows[$row->$groupField][] = $row : $rows[$row->$groupField][$row->$keyField] = $this->getRow($row);
|
||
}
|
||
dao::$cache[$table][$key] = $rows;
|
||
return $rows;
|
||
}
|
||
|
||
/**
|
||
* 获取的记录是以关联数组的形式
|
||
* Fetch array like key=>value.
|
||
*
|
||
* 如果没有设置参数，用首末两键作为参数。
|
||
* If the keyFiled and valueField not set, use the first and last in the record.
|
||
*
|
||
* @param string $keyField
|
||
* @param string $valueField
|
||
* @access public
|
||
* @return array
|
||
*/
|
||
public function fetchPairs($keyField = '', $valueField = '')
|
||
{
|
||
$keyField = trim($keyField, '`');
|
||
$valueField = trim($valueField, '`');
|
||
|
||
$sql = $this->processSQL();
|
||
$table = $this->table;
|
||
$key = 'fetchPairs-' . md5($sql . $keyField . $valueField);
|
||
if(isset(dao::$cache[$table][$key])) return dao::$cache[$table][$key];
|
||
|
||
$pairs = array();
|
||
$ready = false;
|
||
$stmt = $this->query($sql);
|
||
while($row = $stmt->fetch(PDO::FETCH_ASSOC))
|
||
{
|
||
if(!$ready)
|
||
{
|
||
if(empty($keyField)) $keyField = key($row);
|
||
if(empty($valueField))
|
||
{
|
||
end($row);
|
||
$valueField = key($row);
|
||
}
|
||
$ready = true;
|
||
}
|
||
|
||
$pairs[$row[$keyField]] = $row[$valueField];
|
||
}
|
||
|
||
dao::$cache[$table][$key] = $pairs;
|
||
return $pairs;
|
||
}
|
||
|
||
/**
|
||
* 返回最后插入的ID。
|
||
* Return the last insert ID.
|
||
*
|
||
* @access public
|
||
* @return int
|
||
*/
|
||
public function lastInsertID()
|
||
{
|
||
return $this->dbh->lastInsertID();
|
||
}
|
||
|
||
/**
|
||
* 重新生成数据。
|
||
* Get row by data.
|
||
*
|
||
* @param array/object $data
|
||
* @access public
|
||
* @return array/object
|
||
*/
|
||
public function getRow($data)
|
||
{
|
||
if(!is_object($data)) return $data;
|
||
return clone $data;
|
||
}
|
||
|
||
//-------------------- 魔术方法(Magic methods) --------------------//
|
||
|
||
/**
|
||
* 解析dao的方法名，处理魔术方法。
|
||
* Use it to do some convenient queries.
|
||
*
|
||
* @param string $funcName the function name to be called
|
||
* @param array $funcArgs the params
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function __call($funcName, $funcArgs)
|
||
{
|
||
$funcName = strtolower($funcName);
|
||
|
||
/*
|
||
* 如果是findByxxx，转换为where条件语句。
|
||
* findByxxx, xxx as will be in the where.
|
||
**/
|
||
if(strpos($funcName, 'findby') !== false)
|
||
{
|
||
$this->setMode('magic');
|
||
$this->setFields('');
|
||
$field = str_replace('findby', '', $funcName);
|
||
if(count($funcArgs) == 1)
|
||
{
|
||
$operator = '=';
|
||
$value = $funcArgs[0];
|
||
}
|
||
else
|
||
{
|
||
$operator = $funcArgs[0];
|
||
$value = $funcArgs[1];
|
||
}
|
||
$this->sqlobj = sql::select('%s')->from('%s')->where($field, $operator, $value);
|
||
return $this;
|
||
}
|
||
/*
|
||
* 获取指定个数的记录：fetch10 获取10条记录。
|
||
* Fetch10.
|
||
**/
|
||
elseif(strpos($funcName, 'fetch') !== false)
|
||
{
|
||
$max = str_replace('fetch', '', $funcName);
|
||
$stmt = $this->query();
|
||
|
||
$rows = array();
|
||
$key = isset($funcArgs[0]) ? $funcArgs[0] : '';
|
||
$i = 0;
|
||
while($row = $stmt->fetch())
|
||
{
|
||
$key ? $rows[$row->$key] = $row : $rows[] = $row;
|
||
$i ++;
|
||
if($i == $max) break;
|
||
}
|
||
return $rows;
|
||
}
|
||
/*
|
||
* 其他的方法，转到sqlobj对象执行。
|
||
* Others, call the method in sql class.
|
||
**/
|
||
else
|
||
{
|
||
/*
|
||
* 使用$arg0, $arg1... 生成调用的参数。
|
||
* Create the max counts of sql class methods, and then create $arg0, $arg1...
|
||
**/
|
||
for($i = 0; $i < SQL::MAX_ARGS; $i ++)
|
||
{
|
||
${"arg$i"} = isset($funcArgs[$i]) ? $funcArgs[$i] : null;
|
||
}
|
||
$this->sqlobj->$funcName($arg0, $arg1, $arg2);
|
||
return $this;
|
||
}
|
||
}
|
||
|
||
//-------------------- 条件检查( Data Checking)--------------------//
|
||
|
||
/**
|
||
* 检查字段是否满足条件。
|
||
* Check a filed is satisfied with the check rule.
|
||
*
|
||
* @param string $fieldName the field to check
|
||
* @param string $funcName the check rule
|
||
* @param string $condition the condition
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function check($fieldName, $funcName, $condition = '')
|
||
{
|
||
/*
|
||
* 如果没数据中没有该字段，直接返回。
|
||
* If no this field in the data, return.
|
||
**/
|
||
if(!isset($this->sqlobj->data->$fieldName)) return $this;
|
||
|
||
/* 设置字段值。 */
|
||
/* Set the field label and value. */
|
||
global $lang, $config, $app;
|
||
if(isset($config->db->prefix))
|
||
{
|
||
$table = strtolower(str_replace(array($config->db->prefix, '`'), '', $this->table));
|
||
}
|
||
elseif(strpos($this->table, '_') !== false)
|
||
{
|
||
$table = strtolower(substr($this->table, strpos($this->table, '_') + 1));
|
||
$table = str_replace('`', '', $table);
|
||
}
|
||
else
|
||
{
|
||
$table = strtolower($this->table);
|
||
}
|
||
$fieldLabel = isset($lang->$table->$fieldName) ? $lang->$table->$fieldName : $fieldName;
|
||
$value = isset($this->sqlobj->data->$fieldName) ? $this->sqlobj->data->$fieldName : null;
|
||
|
||
/*
|
||
* 检查唯一性。
|
||
* Check unique.
|
||
**/
|
||
if($funcName == 'unique')
|
||
{
|
||
$args = func_get_args();
|
||
$sql = "SELECT COUNT(*) AS count FROM $this->table WHERE `$fieldName` = " . $this->sqlobj->quote($value);
|
||
if($condition) $sql .= ' AND ' . $condition;
|
||
try
|
||
{
|
||
$row = $this->dbh->query($sql)->fetch();
|
||
if($row->count != 0) $this->logError($funcName, $fieldName, $fieldLabel, array($value));
|
||
}
|
||
catch (PDOException $e)
|
||
{
|
||
$this->sqlError($e);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/*
|
||
* 创建参数。
|
||
* Create the params.
|
||
**/
|
||
$funcArgs = func_get_args();
|
||
unset($funcArgs[0]);
|
||
unset($funcArgs[1]);
|
||
|
||
for($i = 0; $i < VALIDATER::MAX_ARGS; $i ++)
|
||
{
|
||
${"arg$i"} = isset($funcArgs[$i + 2]) ? $funcArgs[$i + 2] : null;
|
||
}
|
||
|
||
$checkFunc = 'check' . $funcName;
|
||
if(validater::$checkFunc($value, $arg0, $arg1, $arg2) === false)
|
||
{
|
||
$this->logError($funcName, $fieldName, $fieldLabel, $funcArgs);
|
||
}
|
||
}
|
||
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 检查一个字段是否满足条件。
|
||
* Check a field, if satisfied with the condition.
|
||
*
|
||
* @param string $condition
|
||
* @param string $fieldName
|
||
* @param string $funcName
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function checkIF($condition, $fieldName, $funcName)
|
||
{
|
||
if(!$condition) return $this;
|
||
$funcArgs = func_get_args();
|
||
for($i = 0; $i < VALIDATER::MAX_ARGS; $i ++)
|
||
{
|
||
${"arg$i"} = isset($funcArgs[$i + 3]) ? $funcArgs[$i + 3] : null;
|
||
}
|
||
$this->check($fieldName, $funcName, $arg0, $arg1, $arg2);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 批量检查字段。
|
||
* Batch check some fileds.
|
||
*
|
||
* @param string $fields the fields to check, join with ,
|
||
* @param string $funcName
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function batchCheck($fields, $funcName)
|
||
{
|
||
$fields = explode(',', str_replace(' ', '', $fields));
|
||
$funcArgs = func_get_args();
|
||
for($i = 0; $i < VALIDATER::MAX_ARGS; $i ++)
|
||
{
|
||
${"arg$i"} = isset($funcArgs[$i + 2]) ? $funcArgs[$i + 2] : null;
|
||
}
|
||
foreach($fields as $fieldName) $this->check($fieldName, $funcName, $arg0, $arg1, $arg2);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 批量检查字段是否满足条件。
|
||
* Batch check fields on the condition is true.
|
||
*
|
||
* @param string $condition
|
||
* @param string $fields
|
||
* @param string $funcName
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function batchCheckIF($condition, $fields, $funcName)
|
||
{
|
||
if(!$condition) return $this;
|
||
$fields = explode(',', str_replace(' ', '', $fields));
|
||
$funcArgs = func_get_args();
|
||
for($i = 0; $i < VALIDATER::MAX_ARGS; $i ++)
|
||
{
|
||
${"arg$i"} = isset($funcArgs[$i + 3]) ? $funcArgs[$i + 3] : null;
|
||
}
|
||
foreach($fields as $fieldName) $this->check($fieldName, $funcName, $arg0, $arg1, $arg2);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 根据数据库结构检查字段。
|
||
* Check the fields according the the database schema.
|
||
*
|
||
* @param string $skipFields fields to skip checking
|
||
* @access public
|
||
* @return static|sql the dao object self.
|
||
*/
|
||
public function autoCheck($skipFields = '')
|
||
{
|
||
$fields = $this->getFieldsType();
|
||
$skipFields = ",$skipFields,";
|
||
|
||
foreach($fields as $fieldName => $validater)
|
||
{
|
||
if(strpos($skipFields, $fieldName) !== false) continue; // skip it.
|
||
if(!isset($this->sqlobj->data->$fieldName)) continue;
|
||
if($validater['rule'] == 'skip') continue;
|
||
$options = array();
|
||
if(isset($validater['options'])) $options = array_values($validater['options']);
|
||
for($i = 0; $i < VALIDATER::MAX_ARGS; $i ++)
|
||
{
|
||
${"arg$i"} = isset($options[$i]) ? $options[$i] : null;
|
||
}
|
||
$this->check($fieldName, $validater['rule'], $arg0, $arg1, $arg2);
|
||
}
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 记录错误到日志。
|
||
* Log the error.
|
||
*
|
||
* module/common/lang中定义了错误提示信息。
|
||
* For the error notice, see module/common/lang.
|
||
*
|
||
* @param string $checkType the check rule
|
||
* @param string $fieldName the field name
|
||
* @param string $fieldLabel the field label
|
||
* @param array $funcArgs the args
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function logError($checkType, $fieldName, $fieldLabel, $funcArgs = array())
|
||
{
|
||
global $lang;
|
||
$error = $lang->error->$checkType;
|
||
$replaces = array_merge(array($fieldLabel), $funcArgs); // the replace values.
|
||
|
||
/*
|
||
* 如果$error错误信息是一个字符串，进行替换。
|
||
* Just a string, cycle the $replaces.
|
||
**/
|
||
if(!is_array($error))
|
||
{
|
||
foreach($replaces as $replace)
|
||
{
|
||
$pos = strpos($error, '%s');
|
||
if($pos === false) break;
|
||
$error = substr($error, 0, $pos) . $replace . substr($error, $pos + 2);
|
||
}
|
||
}
|
||
/*
|
||
* 如果error错误信息是一个数组，选择一个%s满足替换个数的进行替换。
|
||
* If the error define is an array, select the one which %s counts match the $replaces.
|
||
**/
|
||
else
|
||
{
|
||
/*
|
||
* 去掉空值项。
|
||
* Remove the empty items.
|
||
**/
|
||
foreach($replaces as $key => $value) if(is_null($value)) unset($replaces[$key]);
|
||
$replacesCount = count($replaces);
|
||
foreach($error as $errorString)
|
||
{
|
||
if(substr_count($errorString, '%s') == $replacesCount)
|
||
{
|
||
$error = vsprintf($errorString, $replaces);
|
||
}
|
||
}
|
||
}
|
||
dao::$errors[$fieldName][] = $error;
|
||
}
|
||
|
||
/**
|
||
* 判断是否有错误。
|
||
* Judge any error or not.
|
||
*
|
||
* @access public
|
||
* @return bool
|
||
*/
|
||
public static function isError()
|
||
{
|
||
return !empty(dao::$errors);
|
||
}
|
||
|
||
/**
|
||
* 获取错误。
|
||
* Get the errors.
|
||
*
|
||
* @access public
|
||
* @return array
|
||
*/
|
||
public static function getError($join = false)
|
||
{
|
||
$errors = dao::$errors;
|
||
dao::$errors = array(); // 清除dao的错误信息(Must clear errors)
|
||
|
||
if(!$join) return $errors;
|
||
|
||
if(is_array($errors))
|
||
{
|
||
$message = '';
|
||
foreach($errors as $item)
|
||
{
|
||
is_array($item) ? $message .= join('\n', $item) . '\n' : $message .= $item . '\n';
|
||
}
|
||
return $message;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 获取表的字段类型。
|
||
* Get the defination of fields of the table.
|
||
*
|
||
* @access public
|
||
* @return array
|
||
*/
|
||
public function getFieldsType()
|
||
{
|
||
try
|
||
{
|
||
$this->dbh->setAttribute(PDO::ATTR_CASE, PDO::CASE_LOWER);
|
||
$sql = "DESC $this->table";
|
||
$rawFields = $this->dbh->query($sql)->fetchAll();
|
||
$this->dbh->setAttribute(PDO::ATTR_CASE, PDO::CASE_NATURAL);
|
||
}
|
||
catch (PDOException $e)
|
||
{
|
||
$this->sqlError($e);
|
||
}
|
||
|
||
foreach($rawFields as $rawField)
|
||
{
|
||
$firstPOS = strpos($rawField->type, '(');
|
||
$type = substr($rawField->type, 0, $firstPOS > 0 ? $firstPOS : strlen($rawField->type));
|
||
$type = str_replace(array('big', 'small', 'medium', 'tiny', 'var'), '', $type);
|
||
$field = array();
|
||
|
||
if($type == 'enum' or $type == 'set')
|
||
{
|
||
$rangeBegin = $firstPOS + 2; // 移除开始的引用符 Remove the first quote.
|
||
$rangeEnd = strrpos($rawField->type, ')') - 1; // 移除结束的引用符 Remove the last quote.
|
||
$range = substr($rawField->type, $rangeBegin, $rangeEnd - $rangeBegin);
|
||
$field['rule'] = 'reg';
|
||
$field['options']['reg'] = '/' . str_replace("','", '|', $range) . '/';
|
||
}
|
||
elseif($type == 'char')
|
||
{
|
||
$begin = $firstPOS + 1;
|
||
$end = strpos($rawField->type, ')', $begin);
|
||
$length = substr($rawField->type, $begin, $end - $begin);
|
||
$field['rule'] = 'length';
|
||
$field['options']['max'] = $length;
|
||
$field['options']['min'] = 0;
|
||
}
|
||
elseif($type == 'int')
|
||
{
|
||
$field['rule'] = 'int';
|
||
}
|
||
elseif($type == 'float' or $type == 'double')
|
||
{
|
||
$field['rule'] = 'float';
|
||
}
|
||
elseif($type == 'date')
|
||
{
|
||
$field['rule'] = 'date';
|
||
}
|
||
elseif($type == 'datetime')
|
||
{
|
||
$field['rule'] = 'datetime';
|
||
}
|
||
else
|
||
{
|
||
$field['rule'] = 'skip';
|
||
}
|
||
$fields[$rawField->field] = $field;
|
||
}
|
||
return $fields;
|
||
}
|
||
|
||
/**
|
||
* Process SQL error by code.
|
||
*
|
||
* @param object $exception
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function sqlError($exception)
|
||
{
|
||
$message = $exception->getMessage();
|
||
$message .= ' ' . helper::checkDB2Repair($exception);
|
||
|
||
$sql = $this->sqlobj->get();
|
||
$this->app->triggerError($message . "<p>The sql is: $sql</p>", __FILE__, __LINE__, $exit = true);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* SQL类。
|
||
* The SQL class.
|
||
*
|
||
* @package framework
|
||
*/
|
||
class baseSQL
|
||
{
|
||
/**
|
||
* 所有方法的最大参数个数。
|
||
* The max count of params of all methods.
|
||
*
|
||
*/
|
||
const MAX_ARGS = 3;
|
||
|
||
/**
|
||
* SQL字符串。
|
||
* The sql string.
|
||
*
|
||
* @var string
|
||
* @access public
|
||
*/
|
||
public $sql = '';
|
||
|
||
/**
|
||
* 全局变量$dbh。
|
||
* The global $dbh.
|
||
*
|
||
* @var object
|
||
* @access public
|
||
*/
|
||
public $dbh;
|
||
|
||
/**
|
||
* 更新或插入日期。
|
||
* The data to update or insert.
|
||
*
|
||
* @var mix
|
||
* @access public
|
||
*/
|
||
public $data;
|
||
|
||
/**
|
||
* 是否是第一次设置。
|
||
* Is the first time to call set.
|
||
*
|
||
* @var bool
|
||
* @access public;
|
||
*/
|
||
public $isFirstSet = true;
|
||
|
||
/**
|
||
* 是否是在条件语句中。
|
||
* If in the logic of judge condition or not.
|
||
*
|
||
* @var bool
|
||
* @access public;
|
||
*/
|
||
public $inCondition = false;
|
||
|
||
/**
|
||
* 条件是否为真。
|
||
* The condition is true or not.
|
||
*
|
||
* @var bool
|
||
* @access public;
|
||
*/
|
||
public $conditionIsTrue = false;
|
||
|
||
/**
|
||
* WHERE条件嵌套小括号标记。
|
||
* If in mark or not.
|
||
*
|
||
* @var bool
|
||
* @access public;
|
||
*/
|
||
public $inMark = false;
|
||
|
||
|
||
/**
|
||
* 是否开启特殊字符转义。
|
||
* Magic quote or not.
|
||
*
|
||
* @var bool
|
||
* @access public
|
||
*/
|
||
public $magicQuote;
|
||
|
||
/**
|
||
* 构造方法。
|
||
* The construct function.
|
||
*
|
||
* @access public
|
||
* @return void
|
||
*/
|
||
public function __construct($table = '')
|
||
{
|
||
global $dbh;
|
||
$this->dbh = $dbh;
|
||
$this->magicQuote = (version_compare(phpversion(), '5.4', '<') and function_exists('get_magic_quotes_gpc') and get_magic_quotes_gpc());
|
||
}
|
||
|
||
/**
|
||
* 工厂方法。
|
||
* The factory method.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public static function factory($table = '')
|
||
{
|
||
return new sql($table);
|
||
}
|
||
|
||
/**
|
||
* select语句。
|
||
* The sql is select.
|
||
*
|
||
* @param string $field
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public static function select($field = '*')
|
||
{
|
||
$sqlobj = self::factory();
|
||
$sqlobj->sql = "SELECT $field ";
|
||
return $sqlobj;
|
||
}
|
||
|
||
/**
|
||
* update语句。
|
||
* The sql is update.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public static function update($table)
|
||
{
|
||
$sqlobj = self::factory();
|
||
$sqlobj->sql = "UPDATE $table SET ";
|
||
return $sqlobj;
|
||
}
|
||
|
||
/**
|
||
* insert语句。
|
||
* The sql is insert.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public static function insert($table)
|
||
{
|
||
$sqlobj = self::factory();
|
||
$sqlobj->sql = "INSERT INTO $table SET ";
|
||
return $sqlobj;
|
||
}
|
||
|
||
/**
|
||
* replace语句。
|
||
* The sql is replace.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public static function replace($table)
|
||
{
|
||
$sqlobj = self::factory();
|
||
$sqlobj->sql = "REPLACE $table SET ";
|
||
return $sqlobj;
|
||
}
|
||
|
||
/**
|
||
* delete语句。
|
||
* The sql is delete.
|
||
*
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public static function delete()
|
||
{
|
||
$sqlobj = self::factory();
|
||
$sqlobj->sql = "DELETE ";
|
||
return $sqlobj;
|
||
}
|
||
|
||
/**
|
||
* 将关联数组转换为sql语句中 `key` = value 的形式。
|
||
* Join the data items by key = value.
|
||
*
|
||
* @param object $data
|
||
* @param string $skipFields the fields to skip.
|
||
* @access public
|
||
* @return object the sql object.
|
||
*/
|
||
public function data($data, $skipFields = '')
|
||
{
|
||
$data = (object) $data;
|
||
if($skipFields) $skipFields = ',' . str_replace(' ', '', $skipFields) . ',';
|
||
|
||
foreach($data as $field => $value)
|
||
{
|
||
if(!preg_match('|^\w+$|', $field))
|
||
{
|
||
unset($data->$field);
|
||
continue;
|
||
}
|
||
if(strpos($skipFields, ",$field,") !== false) continue;
|
||
$this->sql .= "`$field` = " . $this->quote($value) . ',';
|
||
}
|
||
|
||
$this->data = $data;
|
||
$this->sql = rtrim($this->sql, ','); // Remove the last ','.
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 在左边添加'('。
|
||
* Add an '(' at left.
|
||
*
|
||
* @param int $count
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function markLeft($count = 1)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= str_repeat('(', $count);
|
||
$this->inMark = true;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 在右边增加')'。
|
||
* Add an ')' at right.
|
||
*
|
||
* @param int $count
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function markRight($count = 1)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= str_repeat(')', $count);
|
||
$this->inMark = false;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* SET部分。
|
||
* The set part.
|
||
*
|
||
* @param string $set
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function set($set)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
|
||
/* Add ` to avoid keywords of mysql. */
|
||
if(strpos($set, '=') ===false)
|
||
{
|
||
$set = str_replace(',', '', $set);
|
||
$set = '`' . str_replace('`', '', $set) . '`';
|
||
}
|
||
|
||
$this->sql .= $this->isFirstSet ? " $set" : ", $set";
|
||
if($this->isFirstSet) $this->isFirstSet = false;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建From部分。
|
||
* Create the from part.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function from($table)
|
||
{
|
||
$this->sql .= "FROM $table";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建Alias部分，Alias转为AS。
|
||
* Create the Alias part.
|
||
*
|
||
* @param string $alias
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function alias($alias)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " AS $alias ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建LEFT JOIN部分。
|
||
* Create the left join part.
|
||
*
|
||
* @param string $table
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function leftJoin($table)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " LEFT JOIN $table";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建ON部分。
|
||
* Create the on part.
|
||
*
|
||
* @param string $condition
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function on($condition)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " ON $condition ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 开始条件判断。
|
||
* Begin condition judge.
|
||
*
|
||
* @param bool $condition
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function beginIF($condition)
|
||
{
|
||
$this->inCondition = true;
|
||
$this->conditionIsTrue = $condition;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 结束条件判断。
|
||
* End the condition judge.
|
||
*
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function fi()
|
||
{
|
||
$this->inCondition = false;
|
||
$this->conditionIsTrue = false;
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建WHERE部分。
|
||
* Create the where part.
|
||
*
|
||
* @param string $arg1 the field name
|
||
* @param string $arg2 the operator
|
||
* @param string $arg3 the value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function where($arg1, $arg2 = null, $arg3 = null)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
if($arg3 !== null)
|
||
{
|
||
$value = $this->quote($arg3);
|
||
$condition = "`$arg1` $arg2 " . $this->quote($arg3);
|
||
}
|
||
else
|
||
{
|
||
$condition = $arg1;
|
||
}
|
||
|
||
if(!$this->inMark) $this->sql .= ' ' . DAO::WHERE ." $condition ";
|
||
if($this->inMark) $this->sql .= " $condition ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建AND部分。
|
||
* Create the AND part.
|
||
*
|
||
* @param string $condition
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function andWhere($condition, $addMark = false)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$mark = $addMark ? '(' : '';
|
||
$this->sql .= " AND {$mark} $condition ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建OR部分。
|
||
* Create the OR part.
|
||
*
|
||
* @param bool $condition
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function orWhere($condition)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " OR $condition ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建'='部分。
|
||
* Create the '='.
|
||
*
|
||
* @param string $value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function eq($value)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " = " . $this->quote($value);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建'!='。
|
||
* Create '!='.
|
||
*
|
||
* @param string $value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function ne($value)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " != " . $this->quote($value);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建'>'。
|
||
* Create '>'.
|
||
*
|
||
* @param string $value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function gt($value)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " > " . $this->quote($value);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建'>='
|
||
* Create '>='.
|
||
*
|
||
* @param string $value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function ge($value)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " >= " . $this->quote($value);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建'<'。
|
||
* Create '<'.
|
||
*
|
||
* @param mixed $value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function lt($value)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " < " . $this->quote($value);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建 '<='。
|
||
* Create '<='.
|
||
*
|
||
* @param mixed $value
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function le($value)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " <= " . $this->quote($value);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建"between and"。
|
||
* Create "between and"
|
||
*
|
||
* @param string $min
|
||
* @param string $max
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function between($min, $max)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$min = $this->quote($min);
|
||
$max = $this->quote($max);
|
||
$this->sql .= " BETWEEN $min AND $max ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建IN部分。
|
||
* Create in part.
|
||
*
|
||
* @param string|array $ids ','分割的字符串或者数组 list string by ',' or an array
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function in($ids)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= helper::dbIN($ids);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建'NOT IN'部分。
|
||
* Create not in part.
|
||
*
|
||
* @param string|array $ids list string by ',' or an array
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function notin($ids)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= ' NOT ' . helper::dbIN($ids);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建LIKE部分。
|
||
* Create the like by part.
|
||
*
|
||
* @param string $string
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function like($string)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= " LIKE " . $this->quote($string);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建NOT LIKE部分。
|
||
* Create the not like by part.
|
||
*
|
||
* @param string $string
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function notLike($string)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= "NOT LIKE " . $this->quote($string);
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建ORDER BY部分。
|
||
* Create the order by part.
|
||
*
|
||
* @param string $order
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function orderBy($order)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
|
||
$order = str_replace(array('|', '', '_'), ' ', $order);
|
||
|
||
/* Add "`" in order string. */
|
||
/* When order has limit string. */
|
||
$pos = stripos($order, 'limit');
|
||
$orders = $pos ? substr($order, 0, $pos) : $order;
|
||
$limit = $pos ? substr($order, $pos) : '';
|
||
if(!empty($limit))
|
||
{
|
||
$trimedLimit = trim(str_replace('limit', '', $limit));
|
||
if(!preg_match('/^[0-9]+ *(, *[0-9]+)?$/', $trimedLimit)) die("Limit is bad query, The limit is " . htmlspecialchars($limit));
|
||
}
|
||
|
||
$orders = trim($orders);
|
||
if(empty($orders)) return $this;
|
||
if(!preg_match('/^(\w+\.)?(`\w+`|\w+)( +(desc|asc))?( *(, *(\w+\.)?(`\w+`|\w+)( +(desc|asc))?)?)*$/i', $orders)) die("Order is bad request, The order is " . htmlspecialchars($orders));
|
||
|
||
$orders = explode(',', $orders);
|
||
foreach($orders as $i => $order)
|
||
{
|
||
$orderParse = explode(' ', trim($order));
|
||
foreach($orderParse as $key => $value)
|
||
{
|
||
$value = trim($value);
|
||
if(empty($value) or strtolower($value) == 'desc' or strtolower($value) == 'asc') continue;
|
||
|
||
$field = $value;
|
||
/* such as t1.id field. */
|
||
if(strpos($value, '.') !== false) list($table, $field) = explode('.', $field);
|
||
if(strpos($field, '`') === false) $field = "`$field`";
|
||
|
||
$orderParse[$key] = isset($table) ? $table . '.' . $field : $field;
|
||
unset($table);
|
||
}
|
||
$orders[$i] = join(' ', $orderParse);
|
||
if(empty($orders[$i])) unset($orders[$i]);
|
||
}
|
||
$order = join(',', $orders) . ' ' . $limit;
|
||
|
||
$this->sql .= ' ' . DAO::ORDERBY . " $order";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建LIMIT部分。
|
||
* Create the limit part.
|
||
*
|
||
* @param string $limit
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function limit($limit)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
if(empty($limit)) return $this;
|
||
|
||
/* filter limit. */
|
||
$limit = trim(str_ireplace('limit', '', $limit));
|
||
if(!preg_match('/^[0-9]+ *(, *[0-9]+)?$/', $limit))
|
||
{
|
||
$limit = htmlspecialchars($limit);
|
||
die("Limit is bad query, The limit is $limit");
|
||
}
|
||
$this->sql .= ' ' . DAO::LIMIT . " $limit ";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建GROUP BY部分。
|
||
* Create the groupby part.
|
||
*
|
||
* @param string $groupBy
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function groupBy($groupBy)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
if(!preg_match('/^\w+[a-zA-Z0-9_`.]+$/', $groupBy))
|
||
{
|
||
$groupBy = htmlspecialchars($groupBy);
|
||
die("Group is bad query, The group is $groupBy");
|
||
}
|
||
$this->sql .= ' ' . DAO::GROUPBY . " $groupBy";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 创建HAVING部分。
|
||
* Create the having part.
|
||
*
|
||
* @param string $having
|
||
* @access public
|
||
* @return static|sql the sql object.
|
||
*/
|
||
public function having($having)
|
||
{
|
||
if($this->inCondition and !$this->conditionIsTrue) return $this;
|
||
$this->sql .= ' ' . DAO::HAVING . " $having";
|
||
return $this;
|
||
}
|
||
|
||
/**
|
||
* 获取SQL字符串。
|
||
* Get the sql string.
|
||
*
|
||
* @access public
|
||
* @return static|sql
|
||
*/
|
||
public function get()
|
||
{
|
||
return $this->sql;
|
||
}
|
||
|
||
/**
|
||
* 对字段加转义。
|
||
* Quote a var.
|
||
*
|
||
* @param mixed $value
|
||
* @access public
|
||
* @return mixed
|
||
*/
|
||
public function quote($value)
|
||
{
|
||
if($this->magicQuote) $value = stripslashes($value);
|
||
return $this->dbh->quote((string)$value);
|
||
}
|
||
}
|