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我正在嘗試使用與使用PDO的mysql進行事務處理。我遇到的問題是在我提交之前交易已經中斷。我知道這是因爲我在連接上回顯inTransaction（）函數。PDO在提交/回滾之前丟失事務
在我看來，原因是我實例化一個PDODatabase類，然後在實際執行任何查詢之前做一些其他的編碼工作，在這段時間我失去了事務。
實例化我班
$pdo = new PdoDatabase;
$pdo->beginTransaction();
echo "first ".$pdo->transactionStarted()."<br />";
的PdoDatabase類
public function __construct(){
$dsn = 'mysql:host='.DB_HOST.';dbname='.DB_NAME;
$options = array(PDO::ATTR_PERSISTENT => TRUE, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
try{
$this->_connection = new PDO($dsn, DB_USER, BD_PASS, $options);
} catch (PDOException $e){
$this->_error = $e->getMessage();
}
}
public function query($q){
if($this->_error != ''){
echo $this->_error;
} else {
$this->_stmt = $this->_connection->prepare($q);
}
}
public function bind($param, $value, $type = null){
//echo "<br>".$value."<br>";
if (is_null($type)) {
switch (true) {
case is_int($value):
$type = PDO::PARAM_INT;
break;
case is_bool($value):
$type = PDO::PARAM_BOOL;
break;
case is_null($value):
$type = PDO::PARAM_NULL;
break;
default:
$type = PDO::PARAM_STR;
}
}
$this->_stmt->bindValue($param, $value, $type);
}
public function execute($class = null){
$object_array = array();
if($class !== null){
if($this->_stmt->execute()){
$this->_stmt->setFetchMode(PDO::FETCH_CLASS | PDO::FETCH_PROPS_LATE, $class, null);
while($row = $this->returnRow()){
$object_array[] = $class::instantiate($row);
}
}
return $object_array;
} else {
return $this->_stmt->execute();
}
}
public function transactionStarted(){
return $this->_connection->inTransaction();
}
我如何使用它（部分）
if(isset($_POST['id']) && $_POST['id'] != ''){
echo "id exists ".$pdo->transactionStarted()."<br />";
$bidder->getBidderById($_POST['id']);
echo "step 1 ".$pdo->transactionStarted()."<br />";
$bidder = $bidder->getList(0);
echo "step 2 ".$pdo->transactionStarted()."<br />";
$old_bidder = clone $bidder;
echo "step 3 ".$pdo->transactionStarted()."<br />";
$bidder_phones->getPhones($_POST['id']);
echo "step 4 ".$pdo->transactionStarted()."<br />";
$bidder_phones = $bidder_phones->getList();
echo "step 5 ".$pdo->transactionStarted()."<br />";
if($_POST['phone'] == ''){
// check to see if there are any phone numbers in the database already and delete if there is
foreach($bidder_phones as $bp){
$q = "delete from bidder_phones where id = :id";
$pdo->query($q);
$pdo->bind(":id", $bp->getId());
$pdo->execute();
//$bp->remove();
}
} else {
echo "phone to check ".$pdo->transactionStarted()."<br />";
$old_phone_numbers = array();
$new_phone_numbers = explode(',', $_POST['phone']);
foreach($bidder_phones as $bp){
// remove any unused phone numbers
if(!in_array($bp, $new_phone_numbers)){
$q = "delete from bidder_phones where id = :id";
$pdo->query($q);
$pdo->bind(":id", $bp->getId());
$pdo->execute();
//$bp->remove();
}
// push to an array to test the new numbers
array_push($old_phone_numbers, $bp->getPhone());
}
foreach($new_phone_numbers as $phone){
// adding new phone numbers
if(!in_array($phone, $old_phone_numbers)){
$new_phone = new BidderPhone;
$new_phone->setPhone($phone);
$new_phone->setBidderId($_POST['id']);
$pdo->save('BidderPhones', $new_phone);
//$new_phone->save();
}
}
}
正如你看到的我是呼應$ pdo- > transactionStarted（）幾次。這是嘗試查看我何時失去交易。我期望看到的是我的消息，然後是1，表明交易仍然活躍。這就是我得到：
first 1
id exists 1
step 1
step 2
step 3
step 4
step 5
phone to check
in save
before create
Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42S02]: Base table or view not found: 1146 Table 'clickbid.bidder_phoneses' doesn't exist' in /var/www/classes/PdoDatabase.php:59 Stack trace: #0 /var/www/classes/PdoDatabase.php(59): PDOStatement->execute() #1 /var/www/classes/PdoDatabase.php(158): PdoDatabase->execute() #2 /var/www/classes/PdoDatabase.php(187): PdoDatabase->getFields('BidderPhones') #3 /var/www/classes/PdoDatabase.php(176): PdoDatabase->create('BidderPhones', Object(BidderPhone), false) #4 /var/www/admin/data/post_data.php(284): PdoDatabase->save('BidderPhones', Object(BidderPhone)) #5 {main} thrown in /var/www/classes/PdoDatabase.php on line 59
，所以我失去了存在的ID之後，這是因爲我在做其他的節目，而不是準備查詢和執行它們的交易？還有什麼我需要知道的，我失蹤了？在過去的兩天中，我一直在努力解決這個問題。問題是我真的需要能夠開始我的交易，並在實際執行一些查詢之前做一些工作。有沒有辦法做到這一點？
在此先感謝您的幫助。
編輯 因此，我對代碼進行了一些重大更改，並且能夠更密切地確定何時丟失活動事務。
我保存方法是這樣的
public function save($table, $object, $old_object = null){
echo "in save ".$this->transactionStarted()."<br />";
if($object->_id != ''){
echo "before update ".$this->transactionStarted()."<br />";
//return $this->update($table, $object, $old_object, $transaction);
if($this->update($table, $object, $old_object)){
echo "update true ".$this->transactionStarted()."<br />";
return true;
} else {
echo "update false ".$this->transactionStarted()."<br />";
return false;
}
} else {
echo "before create ".$this->transactionStarted()."<br />";
//return $this->create($table, $object, $transaction);
if($this->create($table, $object)){
echo "create true ".$this->transactionStarted()."<br />";
return true;
} else {
echo "create false ".$this->transactionStarted()."<br />";
return false;
}
}
}
在這種特定情況下有從物體發出的_id所以這個 - $>更新是我們在這裏調試是更新方法
private function update($table, $object, $old){
echo "in update ".$this->transactionStarted()."<br />";
$audit = new PdoDatabase;
echo "after new ".$this->transactionStarted()."<br />";
$aq = "insert into audit_trails
(table_name, table_id, user_id, field_name, original_value, new_value) values
(:table_name, :table_id, :user_id, :field_name, :original_value, :new_value)";
echo "before query ".$this->transactionStarted()."<br />";
$audit->query($aq);
echo "after query ".$this->transactionStarted()."<br />";
//$update = new PdoDatabase;
$binding = array();
echo "before field_names ".$this->transactionStarted()."<br />";
$field_names = self::getFields($table);
echo "after field_names ".$this->transactionStarted()."<br />";
$uc = new UserConfig;
$uc->getConfig();
$user = $uc->getList(0);
echo "before foreach ".$this->transactionStarted()."<br />";
foreach($field_names as $field){
$thisField = "_".$field['Field']."<br>";
$getField = 'get'.self::to_camel_case($field['Field']);
$method = $getField;
$class = self::to_camel_case($table);
$field_list = '';
if($field['Field'] == 'id'){
$where = 'where id = :id';
$binding[':id'] = ($object->$getField());
} else {
if(method_exists($class, $method)){
if($object->$getField() != $old->$getField()){
$field_list .= $field['Field']."= :".$field['Field'].", ";
$binding[':'.$field['Field']] = $object->$getField();
$audit->bind(':table_name', $table);
$audit->bind(':table_id', $object->getId());
$audit->bind(':user_id', $user->getUserId());
$audit->bind(':field_name', $thisField);
$audit->bind(':original_value', $object->$getField());
$audit->bind(':new_value', $old->$getField());
echo "before audit execute ".$this->transactionStarted()."<br />";
$audit->execute();
echo "after audit execute ".$this->transactionStarted()."<br />";
}
}
}
}
echo "before binding ".$this->transactionStarted()."<br />";
if(count($binding) > 1){
$q = "update ".self::singularToPlural($table)." set ";
foreach($binding as $key => $value){
if($key != ':id'){
$q .= str_replace(':', '', $key)." = ".$key.", ";
}
}
$q = rtrim($q, ", ");
$q .= ' '.$where;
//$update->query($q);
echo "before this query ".$this->transactionStarted()."<br />";
$this->query($q);
echo "after this query ".$this->transactionStarted()."<br />";
/*if($transaction && !$this->_stmt->inTransaction()){
$this->_stmt->beginTransaction();
}*/
foreach($binding as $key => $value){
//$update->bind($key, $value);
$this->bind($key, $value);
}
//$update->bind($id);
//return $update->execute();
echo "before this execute ".$this->transactionStarted()."<br />";
$stupid = $this->execute();
echo "after this execute ".$this->transactionStarted()."<br />";
return $stupid;
} else {
echo "before return true ".$this->transactionStarted()."<br />";
return true;
}
}
，輸出爲
first 1
in save 1
before update 1
in update 1
after new 1
before query 1
after query 1
before field_names 1
before execute 1
after execute 1
after field_names 1
before foreach 1
before audit execute 1
before execute 1
after execute 1
after audit execute 1
before binding 1
before this query 1
after this query 1
before this execute 1
before execute 1
after execute 1
after this execute 1
update true
the save 1
second
after save
before commit
Fatal error: Uncaught exception 'PDOException' with message 'There is no active transaction' in /var/www/classes/PdoDatabase.php:86 Stack trace: #0 /var/www/classes/PdoDatabase.php(86): PDO->commit() #1 /var/www/admin/data/post_data.php(403): PdoDatabase->commit() #2 {main} thrown in /var/www/classes/PdoDatabase.php on line 86
從這個我能看到積極的辦理當我們從更新返回到保存方法時離子會丟失，我只是不確定這是爲什麼。
再次感謝。
編輯添加getBidderById功能
public function getBidderById($bidder_id){
$pdo = new PdoDatabase;
$q = "select *
from bidders Bidder
where Bidder.id = :bidder_id
limit 1";
$pdo->query($q);
$pdo->bind(":bidder_id", $bidder_id);
$this->_bidders = $pdo->execute('Bidder');
if(!empty($this->_bidders)){
return true;
} else {
return false;
}
}
編輯添加創建方法
private function create($table, $object){
//$insert = new PdoDatabase;
$field_names = self::getFields($table);
foreach($field_names as $field){
$getField = 'get'.self::to_camel_case($field['Field']);
$method = $getField;
$class = self::to_camel_case($table);
if(method_exists($class, $method)){
if($field['Field'] != 'id'){
$fields = $field['Field'].", ";
$binding_fields = ":".$field['Field'].", ";
$binding[':'.$field['Field']] = $object->$getField();
}
}
}
$fields = rtrim($fields, ", ");
$binding_fields = rtrim($binding_fields, ", ");
$iq = "insert into ".self::singularToPlural($table)."
(".$fields.") values
(".$binding_fields.")";
$this->query($iq);
/*if($transaction && !$this->_stmt->inTransaction()){
$this->_stmt->beginTransaction();
}*/
foreach($binding as $key => $value){
$this->bind($key, $value);
}
if($this->execute()){
$object->setId($this->getConnection()->lastInsertId());
return true;
} else {
return false;
}
}
發生在$ bidder-
Gervs
2014-09-23 17:21:02
$ bidder-> getBidderById（$ _ POST ['id']）查詢數據庫中的這個出價者，它填充出價者實例，稍後將用於更新出價者，如果有的話是不同的，因此$ old_bidder = clone $ bidder。這兩個都傳遞給保存方法並相互比較以確定需要更新的內容。 – 2014-09-23 17:37:48
沒有涉及的DDL語句，您能顯示該功能嗎？ – Gervs 2014-09-23 17:48:17