Adding Eloquent query capability

Author: tuananhnghiem

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Change Log
 
+## New version
+
+1. Adding `Eloquent` data source class to handle eloquent query
+
 ## Version 1.7.0
 
 1. Detect secure connection to return correct url for assets.

Eloquent.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace koolreport\laravel;
+
+use \koolreport\core\Utility;
+
+class Eloquent extends \koolreport\core\DataSource
+{
+    protected $builder;
+    /**
+     * Insert eloquent buikder to the pipe.
+     * 
+     * @param mixed $builder 
+     */
+    public function query($builder)
+    {
+        $this->builder = $builder;
+        return $this;
+    }
+
+    /**
+     * Start piping data
+     *
+     * @return null
+     */
+    public function start() 
+    {
+        $metaData = null;
+        foreach($this->builder->cursor() as $item)
+        {
+            if(!$metaData)
+            {
+                $metaData = array(
+                    "columns"=>array()
+                );
+                foreach($item->toArray() as $k=>$v)
+                {
+                    $metaData["columns"][$k] = array(
+                        "type"=>Utility::guessType($v)
+                    );
+                }
+                $this->sendMeta($metaData, $this);
+                $this->startInput(null);
+            }
+            $this->next($item->toArray(), $this);
+        }
+        $this->endInput(null);
+    }
+}