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Reduce unnecessary manual transaction commit

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This commit is contained in:
kaetemi 2014-09-03 06:07:02 +02:00
parent 44b8223a5f
commit 27efa58777
1 changed files with 23 additions and 35 deletions
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58
code/web/private_php/ams/autoload/dblayer.php
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@ -121,24 +121,23 @@ class DBLayer {
* @param $data the parameters that are being inserted into table.
* @return returns the id of the last inserted element.
*/
public function executeReturnId( $tb_name, $data, $datafunc = array() ) {
public function executeReturnId($tb_name, $data, $datafunc = array()) {
$this->useDb();
$field_options = implode(',', array_merge(array_keys($data), array_keys($datafunc)));
$field_values = implode(',', array_merge(array(':' . implode(',:', array_keys($data))), array_values($datafunc)));
try {
$sth = $this -> PDO -> prepare( "INSERT INTO $tb_name ($field_options) VALUE ($field_values)" );
foreach ( $data as $key => $value )
{
$sth -> bindValue( ":$key", $value );
}
$this -> PDO -> beginTransaction();
$sth -> execute();
$lastId = $this -> PDO -> lastInsertId();
$this -> PDO -> commit();
foreach ($data as $key => $value) {
$sth->bindValue( ":$key", $value );
}
$this->PDO->beginTransaction();
$sth->execute();
$lastId = $this->PDO->lastInsertId();
$this->PDO->commit();
}
catch ( Exception $e ) {
catch (Exception $e) {
// for rolling back the changes during transaction
// $this -> PDO -> rollBack();
$this->PDO->rollBack();
throw $e; // new Exception( "error in inseting" );
}
return $lastId;
@ -157,10 +156,10 @@ class DBLayer {
public function selectWithParameter( $param, $tb_name, $data, $where ) {
$this->useDb();
try {
$sth = $this->PDO->prepare( "SELECT $param FROM $tb_name WHERE $where" );
$sth->execute( $data );
$sth = $this->PDO->prepare("SELECT $param FROM $tb_name WHERE $where");
$sth->execute($data);
}
catch ( Exception $e ) {
catch (Exception $e) {
throw $e; // new Exception( "error selection" );
return false;
}
@ -197,25 +196,22 @@ class DBLayer {
* @param string $where where part in format ('fieldname'= $value AND ...). 'fieldname' must be a field in that table.
* @throws Exception error in updating.
*/
public function update( $tb_name, $data, $where ) {
public function update($tb_name, $data, $where) {
$this->useDb();
$field_option_values = null;
foreach ( $data as $key => $value ) {
$field_option_values .= ",$key" . '=:' . $key;
}
$field_option_values = ltrim( $field_option_values, ',' );
$field_option_values = ltrim($field_option_values, ',');
try {
$sth = $this -> PDO -> prepare( "UPDATE $tb_name SET $field_option_values WHERE $where " );
$sth = $this->PDO->prepare("UPDATE $tb_name SET $field_option_values WHERE $where ");
foreach ( $data as $key => $value ) {
$sth -> bindValue( ":$key", $value );
foreach ($data as $key => $value) {
$sth->bindValue(":$key", $value);
}
$this -> PDO -> beginTransaction();
$sth -> execute();
$this -> PDO -> commit();
}
catch ( Exception $e ) {
$this->PDO->rollBack();
$sth->execute();
}
catch (Exception $e) {
throw $e; // new Exception( 'error in updating' );
return false;
}
@ -238,14 +234,9 @@ class DBLayer {
foreach ($data as $key => $value) {
$sth->bindValue(":$key", $value);
}
$this->PDO->beginTransaction();
// execution
$sth->execute();
$this->PDO->commit();
}
catch (Exception $e) {
// for rolling back the changes during transaction
$this->PDO->rollBack();
throw $e; // new Exception("error in inserting");
}
}
@ -261,13 +252,10 @@ class DBLayer {
public function delete( $tb_name, $data, $where ) {
$this->useDb();
try {
$sth = $this->PDO->prepare( "DELETE FROM $tb_name WHERE $where" );
$this->PDO->beginTransaction();
$sth->execute( $data );
$this->PDO->commit();
$sth = $this->PDO->prepare("DELETE FROM $tb_name WHERE $where");
$sth->execute($data);
}
catch (Exception $e) {
$this->PDO->rollBack();
throw $e; // new Exception( "error in deleting" );
}
}