DBConn() public static method

Get the DB connection in a SS 3.1 and 3.2+ compatible way
public static DBConn ( string $name = 'default' ) : SS_Database
$name string
return SS_Database
 public function testModifierFailure()
 {
     if (!ShopTools::DBConn()->supportsTransactions()) {
         $this->markTestSkipped('The Database doesn\'t support transactions.');
     }
     Config::inst()->update('Order', 'modifiers', array('OrderModifierTest_TestModifier'));
     $order = $this->createOrder();
     $order->calculate();
     $order->write();
     // 408 from items + 10 from modifier + 25% from tax
     $this->assertEquals('522.5', $order->Total);
     $amounts = array();
     foreach ($order->Modifiers()->sort('Sort') as $modifier) {
         $amounts[] = (string) $modifier->Amount;
     }
     $this->assertEquals(array('10', '104.5'), $amounts);
     OrderModifierTest_TestModifier::$value = 42;
     try {
         // Calculate will now fail!
         $order->calculate();
     } catch (Exception $e) {
     }
     // reload order from DB
     $order = Order::get()->byID($order->ID);
     // Order Total should not have changed
     $this->assertEquals('522.5', $order->Total);
     $amounts = array();
     foreach ($order->Modifiers()->sort('Sort') as $modifier) {
         $amounts[] = (string) $modifier->Amount;
     }
     $this->assertEquals(array('10', '104.5'), $amounts, 'Modifiers aren\'t allowed to change upon failure');
 }
 /**
  * Takes an order from being a cart to awaiting payment.
  *
  * @param Member $member - assign a member to the order
  *
  * @return boolean - success/failure
  */
 public function placeOrder()
 {
     if (!$this->order) {
         $this->error(_t("OrderProcessor.NoOrderStarted", "A new order has not yet been started."));
         return false;
     }
     if (!$this->canPlace($this->order)) {
         //final cart validation
         return false;
     }
     if ($this->order->Locale) {
         ShopTools::install_locale($this->order->Locale);
     }
     // recalculate order to be sure we have the correct total
     $this->order->calculate();
     if (ShopTools::DBConn()->supportsTransactions()) {
         ShopTools::DBConn()->transactionStart();
     }
     //update status
     if ($this->order->TotalOutstanding(false)) {
         $this->order->Status = 'Unpaid';
     } else {
         $this->order->Status = 'Paid';
     }
     if (!$this->order->Placed) {
         $this->order->Placed = SS_Datetime::now()->Rfc2822();
         //record placed order datetime
         if ($request = Controller::curr()->getRequest()) {
             $this->order->IPAddress = $request->getIP();
             //record client IP
         }
     }
     // Add an error handler that throws an exception upon error, so that we can catch errors as exceptions
     // in the following block.
     set_error_handler(function ($severity, $message, $file, $line) {
         throw new ErrorException($message, 0, $severity, $file, $line);
     }, E_ALL & ~(E_STRICT | E_NOTICE));
     try {
         //re-write all attributes and modifiers to make sure they are up-to-date before they can't be changed again
         $items = $this->order->Items();
         if ($items->exists()) {
             foreach ($items as $item) {
                 $item->onPlacement();
                 $item->write();
             }
         }
         $modifiers = $this->order->Modifiers();
         if ($modifiers->exists()) {
             foreach ($modifiers as $modifier) {
                 $modifier->write();
             }
         }
         //add member to order & customers group
         if ($member = Member::currentUser()) {
             if (!$this->order->MemberID) {
                 $this->order->MemberID = $member->ID;
             }
             $cgroup = ShopConfig::current()->CustomerGroup();
             if ($cgroup->exists()) {
                 $member->Groups()->add($cgroup);
             }
         }
         //allow decorators to do stuff when order is saved.
         $this->order->extend('onPlaceOrder');
         $this->order->write();
     } catch (Exception $ex) {
         // Rollback the transaction if an error occurred
         if (ShopTools::DBConn()->supportsTransactions()) {
             ShopTools::DBConn()->transactionRollback();
         }
         $this->error($ex->getMessage());
         return false;
     } finally {
         // restore the error handler, no matter what
         restore_error_handler();
     }
     // Everything went through fine, complete the transaction
     if (ShopTools::DBConn()->supportsTransactions()) {
         ShopTools::DBConn()->transactionEnd();
     }
     //remove from session
     $cart = ShoppingCart::curr();
     if ($cart && $cart->ID == $this->order->ID) {
         // clear the cart, but don't write the order in the process (order is finalized and should NOT be overwritten)
         ShoppingCart::singleton()->clear(false);
     }
     //send confirmation if configured and receipt hasn't been sent
     if (self::config()->send_confirmation && !$this->order->ReceiptSent) {
         $this->notifier->sendConfirmation();
     }
     //notify admin, if configured
     if (self::config()->send_admin_notification) {
         $this->notifier->sendAdminNotification();
     }
     // Save order reference to session
     OrderManipulation::add_session_order($this->order);
     return true;
     //report success
 }
 public function testPlaceFailure()
 {
     if (!ShopTools::DBConn()->supportsTransactions()) {
         $this->markTestSkipped('The Database doesn\'t support transactions.');
     }
     // Add the erroneous extension
     Order::add_extension('OrderProcessorTest_PlaceFailExtension');
     Config::inst()->update('Product', 'order_item', 'OrderProcessorTest_CustomOrderItem');
     //log out the admin user
     Member::currentUser()->logOut();
     $joemember = $this->objFromFixture('Member', 'joebloggs');
     $joemember->logIn();
     $this->shoppingcart->add($this->mp3player);
     $cart = ShoppingCart::curr();
     $cart->calculate();
     $this->assertDOSContains(array(array('ClassName' => 'OrderProcessorTest_CustomOrderItem')), $cart->Items());
     $versions = Product_OrderItem::get()->filter('OrderID', $cart->ID)->column('ProductVersion');
     // The Product_OrderItem should not reference a product version while the order is not placed
     $this->assertEquals(array(0), $versions);
     $this->assertTrue($cart->has_extension('OrderProcessorTest_PlaceFailExtension'));
     // Placing the order will fail.
     $this->assertFalse($this->placeOrder('Joseph', 'Blog', '*****@*****.**', '100 Melrose Place', null, 'Martinsonville', 'New Mexico', null, 'EG', 'newpassword', 'newpassword', $joemember), "Member order placed successfully");
     $order = Order::get()->byID($cart->ID);
     //update order variable to db-stored version
     $this->assertNotNull($this->shoppingcart->current(), "Shopping is still present");
     $this->assertNotNull($order);
     $this->assertNull($order->Placed);
     $this->assertEquals($order->Status, 'Cart', 'Status should still be "Cart"');
     // When order failed, everything that was written during the placement should be rolled back
     $versions = Product_OrderItem::get()->filter('OrderID', $cart->ID)->column('ProductVersion');
     // The Product_OrderItem should still not reference a product if the rollback worked
     $this->assertEquals(array(0), $versions);
     $this->assertEquals(0, OrderProcessorTest_CustomOrderItem::get()->filter('OrderID', $cart->ID)->first()->IsPlaced);
     Order::remove_extension('OrderProcessorTest_PlaceFailExtension');
     $this->shoppingcart->clear(false);
 }