enable Carbon usage for timestamps

update read me
fix doc block for filter

Author: yajra

README.md

@@ -18,7 +18,7 @@ Add the `yajra/datatables` under the `require` key after that run the `composer
 ```php
     {
         "require": {
-            "laravel/framework": "4.1.*",
+            "laravel/framework": "4.2.*",
             ...
             "yajra/laravel-datatables-oracle": "*"
         }
@@ -91,11 +91,27 @@ It is better, you know these:
     ->make();
 ```
 
-**Example 3:**
+**Example 3: Overriding default filter option**
 ```php
     $posts = Post::select(array('posts.id','posts.name','posts.created_at','posts.status'));
 
-    return Datatables::of($posts)->filter(function($query){
+    return Datatables::of($posts)
+        ->filter(function($query){
+            if (Input::get('id')) {
+                $query->where('id','=',Input::get('id'));
+            }
+        })->make();
+```
+
+**Example 4: Accessing Carbon object on timestamps**
+> Note: You cannot access Carbon object using blade templating approach
+
+```php
+    $posts = Post::select(array('posts.id','posts.name','posts.created_at','posts.status'));
+
+    return Datatables::of($posts)
+        ->editColumn('created_at', function($data){ $data->created_at->toDateTimeString() })
+        ->filter(function($query){
             if (Input::get('id')) {
                 $query->where('id','=',Input::get('id'));
             }

src/yajra/Datatables/Datatables.php

@@ -61,7 +61,7 @@ public static function of($query)
 		// set connection and query variable
 		if($ins->query_type == 'eloquent') {
 			$ins->connection = $ins->query->getModel()->getConnection();
-			$ins->query = $ins->query->getQuery();
+			$ins->query = $query;
 		}
 		else {
 			$ins->connection = $query->getConnection();
@@ -108,7 +108,12 @@ public function make($mDataSupport=false)
 	private function getResult()
 	{
 		$this->result_object = $this->query->get();
-		$this->result_array = array_map(function($object) { return (array) $object; }, $this->result_object);
+		if ($this->query_type == 'eloquent') {
+			$this->result_array = array_map(function($object) { return (array) $object; }, $this->result_object->toArray());
+		}
+		else {
+			$this->result_array = array_map(function($object) { return (array) $object; }, (array) $this->result_object);
+		}
 	}
 
 	/**
@@ -393,8 +398,9 @@ private function cleanColumns( $cols, $use_alias  = true )
 	}
 
 	/**
-	 * set auto filter off
-	 * @return [type] [description]
+	 * set auto filter off and run your own filter
+	 * @param Closure
+	 * @return Datatables
 	 */
 	public function filter(Closure $callback)
 	{