Making a backup of the value binder while quoting identifiers, otherwise

the query will be marked as dirty and all values lost and the end of the
query transformation

Author: lorenzo

Cake/Database/Expression/FieldExpression.php

@@ -19,6 +19,10 @@
 use Cake\Database\ExpressionInterface;
 use Cake\Database\ValueBinder;
 
+/**
+ * Represents a single field name in the database
+ *
+ */
 class FieldExpression implements ExpressionInterface {
 
 /**

Cake/Database/Query.php

@@ -1666,7 +1666,10 @@ protected function _transformQuery() {
 	protected function _dirty() {
 		$this->_dirty = true;
 		$this->_transformedQuery = null;
-		$this->valueBinder()->reset();
+
+		if ($this->_valueBinder) {
+			$this->valueBinder()->reset();
+		}
 	}
 
 /**

Cake/Database/SqlDialectTrait.php

@@ -193,6 +193,8 @@ protected function _quoteQueryIdentifiers($type, $query) {
 			return $query;
 		}
 
+		$binder = $query->valueBinder();
+		$query->valueBinder(false);
 		$quoter = function($part) use ($query) {
 			$result = [];
 			foreach ((array)$query->clause($part) as $alias => $value) {
@@ -218,7 +220,7 @@ protected function _quoteQueryIdentifiers($type, $query) {
 			$result[$alias] = $value;
 		}
 		$query->join($result, [], true);
-
+		$query->valueBinder($binder);
 		return $query;
 	}
 

Cake/Test/TestCase/Database/QueryTest.php

@@ -36,10 +36,12 @@ class QueryTest extends TestCase {
 	public function setUp() {
 		parent::setUp();
 		$this->connection = ConnectionManager::get('test');
+		$this->autoQuote = $this->connection->driver()->autoQuoting();
 	}
 
 	public function tearDown() {
 		parent::tearDown();
+		$this->connection->driver()->autoQuoting($this->autoQuote);
 		unset($this->connection);
 	}
 
@@ -49,6 +51,7 @@ public function tearDown() {
  * @return void
  */
 	public function testSelectFieldsOnly() {
+		$this->connection->driver()->autoQuoting(false);
 		$query = new Query($this->connection);
 		$result = $query->select('1 + 1')->execute();
 		$this->assertInstanceOf('Cake\Database\StatementInterface', $result);
@@ -70,6 +73,7 @@ public function testSelectFieldsOnly() {
  * @return void
  */
 	public function testSelectClosure() {
+		$this->connection->driver()->autoQuoting(false);
 		$query = new Query($this->connection);
 		$result = $query->select(function($q) use ($query) {
 			$this->assertSame($query, $q);