Fix sortablelink directive not accepting second parameter

README.md

@@ -99,14 +99,18 @@ Sortable trait adds Sortable scope to the models so you can use it with paginate
 
 ## Blade Extension
 
-There is one blade extension for you to use
+There is one blade extension for you to use **@sortablelink**
+
 ```
 @sortablelink('column', 'Title')
+@sortablelink('name')
 ```
 
 **Column** (1st) parameter is `order by` and **Title** (2nd) parameter is displayed inside anchor tags.
 You can omit **Title** parameter.
 
+>**WARNING**: @sortablelink directive only accepts single quotes
+
 ## Config in few words
 
 Sortablelink blade extension distinguishes between "types" (numeric, amount and alpha) and applies different class for each of them. See following snippet:

composer.json

@@ -18,8 +18,8 @@
   ],
   "require": {
     "php": ">=5.6.4",
-    "Illuminate/Support": "^5.0",
-    "Illuminate/Database": "^5.0"
+    "Illuminate/Support": "5.1.* || 5.2.* || 5.3.*",
+    "Illuminate/Database": "5.1.* || 5.2.* || 5.3.*"
   },
   "require-dev": {
     "phpunit/phpunit": "~5.0",

src/ColumnSortable/ColumnSortableServiceProvider.php

@@ -30,8 +30,9 @@ public function boot()
         ], 'config');
 
         Blade::directive('sortablelink', function ($expression) {
+            //TODO: only accepts single quotes 'Email', would be nice to accept double quotes as well.
             $expression = ($expression[0] === '(') ? substr($expression, 1, -1) : $expression;
-            return "<?php echo \Kyslik\ColumnSortable\SortableLink::render({$expression});?>";
+            return "<?php echo \Kyslik\ColumnSortable\SortableLink::render(\"{$expression}\");?>";
         });
     }
 

src/ColumnSortable/Sortable.php

@@ -48,7 +48,6 @@ public function scopeSortable($query, $default = null)
     private function queryOrderBuilder($query, array $sortArray)
     {
         $model = $this;
-        //dd($model);
         $direction = array_get($sortArray, 'order', 'asc');
 
         if (!in_array($direction, ['asc', 'desc'])) {