[+BUGFIX] Make $query->equals, no case sensitivity, work with UTF8

Change-Id: Ic00c9bafe6c0ca262fc3f9d716e0dae20d07ead5
Fixes: #27413
Releases: 1.3, 4.7, 4.8

typo3/sysext/extbase/Classes/Persistence/Query.php

@@ -461,7 +461,11 @@ class Tx_Extbase_Persistence_Query implements Tx_Extbase_Persistence_QueryInterf
 					$this->qomFactory->propertyValue($propertyName, $this->getSelectorName())
 				),
 				Tx_Extbase_Persistence_QueryInterface::OPERATOR_EQUAL_TO,
-				strtolower($operand)
+				t3lib_div::makeInstance('t3lib_cs')->conv_case(
+					Tx_Extbase_Persistence_QueryInterface::CHARSET,
+					$operand,
+					'toLower'
+				)
 			);
 		}
 

typo3/sysext/extbase/Classes/Persistence/QueryInterface.php

@@ -30,7 +30,6 @@
  *
  * @package Extbase
  * @subpackage Persistence
- * @version $Id$
  * @api
  */
 interface Tx_Extbase_Persistence_QueryInterface {
@@ -110,6 +109,11 @@ interface Tx_Extbase_Persistence_QueryInterface {
 	 */
 	const JCR_JOIN_TYPE_RIGHT_OUTER = '{http://www.jcp.org/jcr/1.0}joinTypeRightOuter';
 
+	/**
+	 * Charset of strings in QOM
+	 */
+	const CHARSET = 'utf-8';
+
 	/**
 	 * Gets the node-tuple source for this query.
 	 *

typo3/sysext/extbase/Tests/Unit/Persistence/QueryTest.php

@@ -127,5 +127,36 @@ class Tx_Extbase_Tests_Unit_Persistence_QueryTest extends Tx_Extbase_Tests_Unit_
 		$this->query->setOffset(-1);
 	}
 
+	/**
+	 * @return array
+	 */
+	public function equalsForCaseSensitiveFalseLowercasesOperandProvider() {
+		return array(
+			'Polish alphabet' => array('name', 'ĄĆĘŁŃÓŚŹŻABCDEFGHIJKLMNOPRSTUWYZQXVąćęłńóśźżabcdefghijklmnoprstuwyzqxv', 'ąćęłńóśźżabcdefghijklmnoprstuwyzqxvąćęłńóśźżabcdefghijklmnoprstuwyzqxv' ),
+			'German alphabet' => array('name', 'ßÜÖÄüöä', 'ßüöäüöä'),
+			'Greek alphabet' => array('name', 'Τάχιστη αλώπηξ βαφής ψημένη γη', 'τάχιστη αλώπηξ βαφής ψημένη γη'),
+			'Russian alphabet' => array('name', 'АВСТРАЛИЯавстралия', 'австралияавстралия'),
+		);
+	}
+
+	/**
+	 * Checks if equals condition makes utf-8 argument lowercase correctly
+	 * @test
+	 * @dataProvider equalsForCaseSensitiveFalseLowercasesOperandProvider
+	 *
+	 * @param string $propertyName The name of the property to compare against
+	 * @param mixed $operand The value to compare with
+	 * @param string $expectedOperand
+	 */
+	public function equalsForCaseSensitiveFalseLowercasesOperand($propertyName, $operand, $expectedOperand) {
+		/** @var $qomFactory Tx_Extbase_Persistence_QOM_QueryObjectModelFactory */
+		$qomFactory = $this->getMock( 'Tx_Extbase_Persistence_QOM_QueryObjectModelFactory', array('comparison'));
+		$qomFactory->injectObjectManager(t3lib_div::makeInstance('Tx_Extbase_Object_ObjectManager'));
+
+		$qomFactory->expects($this->once())->method('comparison')->with($this->anything(), $this->anything(), $expectedOperand);
+		$this->query->injectQomFactory($qomFactory);
+
+		$this->query->equals($propertyName, $operand, FALSE);
+	}
 }
 ?>
\ No newline at end of file