Merge pull request #3 from TiagoSilvaPereira/patch-1

Adding a simple way to define custom Filters

src/Laravel/SanitizesInput.php

@@ -22,10 +22,23 @@ public function validate()
      */
     public function sanitize()
     {
+        $this->addCustomFilters();
         $this->sanitizer = \Sanitizer::make($this->input(), $this->filters());
         $this->replace($this->sanitizer->sanitize());
     }
 
+    /**
+     *  Add custom fields to the Sanitizer
+     *
+     *  @return void
+     */
+    public function addCustomFilters()
+    {
+        foreach ($this->customFilters() as $name => $filter) {
+            \Sanitizer::extend($name, $filter);
+        }
+    }
+
     /**
      *  Filters to be applied to the input.
      *
@@ -35,4 +48,14 @@ public function filters()
     {
         return [];
     }
-}
+
+    /**
+     *  Custom Filters to be applied to the input.
+     *
+     *  @return void
+     */
+    public function customFilters()
+    {
+        return [];
+    }
+}