add SQL style of Model ordering syntax

using SqlCompatible behavior,
you can use
$order = 'History.created DESC';

close #20

Author: ichikaway

models/behaviors/sql_compatible.php

@@ -109,10 +109,13 @@ public function afterFind(&$Model, $results, $primary) {
  * @access public
  */
 	public function beforeFind(&$Model, $query) {
+		if (is_array($query['order'])) {
+			$this->_translateOrders($Model, $query['order']);
+		}
 		if (is_array($query['conditions']) && $this->_translateConditions($Model, $query['conditions'])) {
 			return $query;
 		}
-		return true;
+		return $query;
 	}
 
 /**
@@ -132,6 +135,28 @@ public function convertDates(&$results) {
 		}
 	}
 
+
+/**
+ * translateOrders method
+ * change order syntax from SQL style to Mongo style
+ *
+ * @param mixed $Model
+ * @param mixed $orders
+ * @return void
+ * @access protected
+ */
+	protected function _translateOrders(&$Model, &$orders) {
+		if(!empty($orders[0])) {
+			foreach($orders[0] as $key => $val) {
+				if(preg_match('/^(.+) (ASC|DESC)$/i', $val, $match)) {
+					$orders[0][$match[1]] = $match[2];
+					unset($orders[0][$key]);
+				}
+			}
+		}
+	}
+
+
 /**
  * translateConditions method
  *
@@ -267,4 +292,4 @@ protected function _translateOperator($Model, $operator) {
 		}
 		return '';
 	}
-}
+}

tests/cases/behaviors/sql_compatible.test.php

@@ -294,6 +294,66 @@ public function testFindConditionIn() {
 	}
 
 
+/**
+ * Order method
+ *
+ * @return void
+ * @access public
+ */
+	public function testOrderDESC() {
+		$expected = array(20, 19);
+		$result = $this->Post->find('all', array(
+			'conditions' => array('title >' => 18),
+			'fields' => array('_id', 'title'),
+			'order' => array('title DESC')
+		));
+		$result = Set::extract($result, '/Post/title');
+		$this->assertEqual($expected, $result);
+
+		$order = array(array('title' => 'DESC'));
+		$this->assertEqual($order, $this->Post->lastQuery['order']);
+	}
+
+/**
+ * Order method
+ *
+ * @return void
+ * @access public
+ */
+	public function testOrderASC() {
+		$expected = array(19, 20);
+		$result = $this->Post->find('all', array(
+			'conditions' => array('title >' => 18),
+			'fields' => array('_id', 'title'),
+			'order' => array('title ASC')
+		));
+		$result = Set::extract($result, '/Post/title');
+		$this->assertEqual($expected, $result);
+
+		$order = array(array('title' => 'ASC'));
+		$this->assertEqual($order, $this->Post->lastQuery['order']);
+	}
+
+
+/**
+ * Order method with model alias
+ *
+ * @return void
+ * @access public
+ */
+	public function testOrderWithModelAlias() {
+		$expected = array(20, 19);
+		$result = $this->Post->find('all', array(
+			'conditions' => array('title >' => 18),
+			'fields' => array('_id', 'title'),
+			'order' => array('Post.title DESC')
+		));
+		$result = Set::extract($result, '/Post/title');
+		$this->assertEqual($expected, $result);
+	}
+
+
+
 /**
  * setupData method
  *
@@ -311,4 +371,4 @@ protected function _setupData() {
 			$this->Post->save($saveData);
 		}
 	}
-}
+}