Added 2nd part of the test. Cars query.

Author: Rafal

src/APP/AnswersBundle/Controller/APIController.php

@@ -368,6 +368,53 @@ public function searchAnswerAction(Request $request)
         );
     }
 
+    /**
+     * @Route("/get-cars", name="api_get_cars")
+     * @Method({"GET", "POST"})
+     */
+    public function getCarsAction()
+    {
+        $em = $this->getDoctrine()->getManager();
+
+        $conn = $em->getConnection();
+
+        $sql = "SELECT DISTINCT t2.fabrication_year,
+                    SUM(t2.BMW) as BMW,
+                    SUM(t2.Mercedes) as Mercedes,
+                    SUM(t2.Audi) as Audi,
+                    SUM(t2.Fiat) as Fiat
+                FROM
+                    (SELECT
+                        CASE WHEN t1.fabrication_year BETWEEN 0 AND 1998 THEN '0-1998'
+                        WHEN t1.fabrication_year BETWEEN 1999 AND 2002 THEN '1999-2002'
+                        WHEN t1.fabrication_year BETWEEN 2003 AND 2006 THEN '2003-2006'
+                        WHEN t1.fabrication_year BETWEEN 2007 AND 2009 THEN '2007-2009'
+                        ELSE '2010-2016' END AS fabrication_year,
+                        SUM(t1.BMW) as BMW,
+                        SUM(t1.Mercedes) as Mercedes,
+                        SUM(t1.Audi) as Audi,
+                        SUM(t1.Fiat) as Fiat
+                    FROM
+                        (SELECT 
+                        DISTINCT fabrication_year,
+                        COUNT(CASE WHEN producer='Fiat' THEN producer END) AS Fiat,
+                        COUNT(CASE WHEN producer='BMW' THEN producer END) AS BMW,
+                        COUNT(CASE WHEN producer='Mercedes' THEN producer END) AS Mercedes,
+                        COUNT(CASE WHEN producer='Audi' THEN producer END) AS Audi
+                        FROM cars
+                        GROUP BY fabrication_year) t1
+                    GROUP BY t1.fabrication_year) t2
+                GROUP BY fabrication_year;";
+
+        $statement = $conn->prepare($sql);
+        $statement->execute();
+        $cars = $statement->fetchAll();        
+        
+        return new JsonResponse(
+            $cars
+        );
+    }
+
     private function getSlug($value)
     {
         $slugify = new Slugify();

src/APP/AnswersBundle/Entity/Car.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace APP\AnswersBundle\Entity;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * Car
+ *
+ * @ORM\Entity(repositoryClass="APP\AnswersBundle\Entity\AnswerRepository")
+ * @ORM\Table(name="cars",
+ *      indexes={
+ *          @ORM\Index(name="search_idx", columns={
+ *              "fabrication_year",
+ *              "producer"
+ *          })
+ *      }
+ * )
+ */
+class Car
+{
+    /**
+     * @var integer
+     *
+     * @ORM\Column(name="id", type="integer")
+     * @ORM\Id
+     * @ORM\GeneratedValue(strategy="AUTO")
+     */
+    private $id;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="fabrication_year", type="integer")
+     */
+    private $fabrication_year;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="producer", type="string", length=255)
+     */
+    private $producer;
+
+    /**
+     * Get id
+     *
+     * @return integer
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * Set fabricationYear
+     *
+     * @param integer $fabricationYear
+     *
+     * @return Car
+     */
+    public function setFabricationYear($fabricationYear)
+    {
+        $this->fabrication_year = $fabricationYear;
+
+        return $this;
+    }
+
+    /**
+     * Get fabricationYear
+     *
+     * @return integer
+     */
+    public function getFabricationYear()
+    {
+        return $this->fabrication_year;
+    }
+
+    /**
+     * Set producer
+     *
+     * @param string $producer
+     *
+     * @return Car
+     */
+    public function setProducer($producer)
+    {
+        $this->producer = $producer;
+
+        return $this;
+    }
+
+    /**
+     * Get producer
+     *
+     * @return string
+     */
+    public function getProducer()
+    {
+        return $this->producer;
+    }
+}

src/APP/AnswersBundle/Entity/Car.php~

@@ -0,0 +1,44 @@
+<?php
+
+namespace APP\AnswersBundle\Entity;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * Car
+ *
+ * @ORM\Entity(repositoryClass="APP\AnswersBundle\Entity\AnswerRepository")
+ * @ORM\Table(name="cars",
+ *      indexes={
+ *          @ORM\Index(name="search_idx", columns={
+ *              "fabrication_year",
+ *              "producer"
+ *          })
+ *      }
+ * )
+ */
+class Car
+{
+    /**
+     * @var integer
+     *
+     * @ORM\Column(name="id", type="integer")
+     * @ORM\Id
+     * @ORM\GeneratedValue(strategy="AUTO")
+     */
+    private $id;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="fabrication_year", type="integer")
+     */
+    private $fabrication_year;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="producer", type="string", length=255)
+     */
+    private $producer;
+}