TP+ORACLE插入数据BUG修复以及获取自增Id支持getLastInsID方法
这些天在做Api接口时候,发现用TP操作Oracle数据库,发现查询修改删除都能执行,
但一旦执行插入操作老是报错。类似问题比如: http://www.thinkphp.cn/bug/3286.html
花了点时间仔细研究一下,发现是BUG.
下面是我的解决办法:
针对版本:ThinkPHP3.2.3
BUG修复:
修改文件:Db\Driver\Oracle.class.PHP
找到 execute方法,
找到:this−>initConnect(true);这句前面加上bind = $this->bind; 这句:
public function execute($str,$fetchSql=false) {
$bind = $this->bind; //新增这句
$this->initConnect(true);
找到:foreach ($this->bind as $key => $val) { 这句
前面加上 $this->bind = $this->bind ? $this->bind : $bind; 这句:
$this->bind = $this->bind ? $this->bind : $bind; //新增这句
foreach ($this->bind as $key => $val) {
找到 $this->lastInsID = $this->_linkID->lastInsertId(); 这句
将其修改为:
//修改:
//$this->lastInsID = $this->_linkID->lastInsertId();
$this->lastInsID = $this->lastInsertId($this->table);
Oracle.class.php文件中新增以下代码:
/**
* 取得Oracle最近插入的ID
* @access public
*/
public function lastInsertId($sequence = '') {
try {
$lastInsID = $this->_linkID->lastInsertId();
} catch(\PDOException $e) {
//对于驱动不支持PDO::lastInsertId()的情况
try {
$lastInsID = 0;
$seqPrefix = C("DB_SEQUENCE_PREFIX") ? C("DB_SEQUENCE_PREFIX") : 'seq_';
$sequence = $sequence ? $sequence : $seqPrefix.$this->table;
$q = $this->query("SELECT {$sequence}.CURRVAL as t FROM DUAL");
if($q) {
$lastInsID = $q[0]['t'];
}
} catch(\Exception $e) {
//print "Error!: " . $e->getMessage() . "</br>";
//exit;
}
}
return $lastInsID;
}
调用方法:
1.数据库配置:
'DB_PREFIX'=>'tb_',//表名前缀
'DB_SEQUENCE_PREFIX' => 'seq_',//序列名前缀,每个表对应的序列应为: 序列名前缀+表名
'DB_TRIGGER_PREFIX' => 'tig_',//触发器名前缀
2.先创建user数据表
表字段:id, username, password
3.然后创建[序列+触发器]
----创建序列
create sequence seq_user
increment by 1
start with 1
nomaxvalue
nominvalue
nocache;
----创建触发器
create or replace trigger "tig_user"
before insert on tb_user
for each row when(new.id is null)
begin
select seq_user.nextval into :new.id from dual;
end;
4.最后一步,在UserAction中写插入数据代码如下:
$data = array(
'phone'=>$phone,
'password'=>md5($password)
);
$r = M('user')->field(true)->add($data); //执行插入并返回上次插入Id
if($r){
//$r = M('user')->getLastInsID(); //获取上次插入Id
echo '上次插入记录:'.$r;
}else{
$this->error('操作失败');
}