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Don't create transactions for SELECT queries

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This commit is contained in:
kaetemi 2014-09-03 05:39:16 +02:00
parent d169f9c331
commit 330aa32c97
1 changed files with 32 additions and 43 deletions
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33
code/web/private_php/ams/autoload/dblayer.php
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@ -136,11 +136,10 @@ class DBLayer {
$lastId = $this -> PDO -> lastInsertId(); $lastId = $this -> PDO -> lastInsertId();
$this -> PDO -> commit(); $this -> PDO -> commit();
} }
catch ( Exception $e ) catch ( Exception $e ) {
{
// for rolling back the changes during transaction // for rolling back the changes during transaction
$this -> PDO -> rollBack(); // $this -> PDO -> rollBack();
throw new Exception( "error in inseting" ); throw $e; // new Exception( "error in inseting" );
} }
return $lastId; return $lastId;
} }
@ -159,13 +158,10 @@ class DBLayer {
$this->useDb(); $this->useDb();
try { try {
$sth = $this->PDO->prepare( "SELECT $param FROM $tb_name WHERE $where" ); $sth = $this->PDO->prepare( "SELECT $param FROM $tb_name WHERE $where" );
$this -> PDO -> beginTransaction();
$sth->execute( $data ); $sth->execute( $data );
$this -> PDO -> commit();
} }
catch ( Exception $e ) { catch ( Exception $e ) {
$this -> PDO -> rollBack(); throw $e; // new Exception( "error selection" );
throw new Exception( "error selection" );
return false; return false;
} }
return $sth; return $sth;
@ -184,14 +180,10 @@ class DBLayer {
$this->useDb(); $this->useDb();
try { try {
$sth = $this->PDO->prepare("SELECT * FROM $tb_name WHERE $where"); $sth = $this->PDO->prepare("SELECT * FROM $tb_name WHERE $where");
$this -> PDO -> beginTransaction();
$sth->execute( $data ); $sth->execute( $data );
$this -> PDO -> commit();
} }
catch( Exception $e ) catch (Exception $e) {
{ throw $e; // new Exception( "error selection" );
$this -> PDO -> rollBack();
throw new Exception( "error selection" );
return false; return false;
} }
return $sth; return $sth;
@ -208,26 +200,23 @@ class DBLayer {
public function update( $tb_name, $data, $where ) { public function update( $tb_name, $data, $where ) {
$this->useDb(); $this->useDb();
$field_option_values = null; $field_option_values = null;
foreach ( $data as $key => $value ) foreach ( $data as $key => $value ) {
{
$field_option_values .= ",$key" . '=:' . $key; $field_option_values .= ",$key" . '=:' . $key;
} }
$field_option_values = ltrim( $field_option_values, ',' ); $field_option_values = ltrim( $field_option_values, ',' );
try { 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 ) foreach ( $data as $key => $value ) {
{
$sth -> bindValue( ":$key", $value ); $sth -> bindValue( ":$key", $value );
} }
$this -> PDO -> beginTransaction(); $this -> PDO -> beginTransaction();
$sth -> execute(); $sth -> execute();
$this -> PDO -> commit(); $this -> PDO -> commit();
} }
catch ( Exception $e ) catch ( Exception $e ) {
{
$this->PDO->rollBack(); $this->PDO->rollBack();
throw new Exception( 'error in updating' ); throw $e; // new Exception( 'error in updating' );
return false; return false;
} }
return true; return true;
@ -279,7 +268,7 @@ class DBLayer {
} }
catch (Exception $e) { catch (Exception $e) {
$this->PDO->rollBack(); $this->PDO->rollBack();
throw new Exception( "error in deleting" ); throw $e; // new Exception( "error in deleting" );
} }
} }
} }