diff --git a/src/Larapack/AttributeSlugging/Sluggable.php b/src/Larapack/AttributeSlugging/Sluggable.php
index 02cab77..73c5eb2 100644
--- a/src/Larapack/AttributeSlugging/Sluggable.php
+++ b/src/Larapack/AttributeSlugging/Sluggable.php
@@ -2,8 +2,8 @@
 
 namespace Larapack\AttributeSlugging;
 
-use Illuminate\Support\Str;
 use Exception;
+use Illuminate\Support\Str;
 
 trait Sluggable
 {
@@ -12,9 +12,10 @@ trait Sluggable
      *
      * protected $slugs = [];
      */
-    
+
     /**
      * Boot the sluggable trait for a model.
+     *
      * @return void
      */
     public static function bootSluggable()
@@ -22,30 +23,32 @@ public static function bootSluggable()
         /*
          * Set slugged attributes on new records
          */
-        static::creating(function($model) {
+        static::creating(function ($model) {
             $model->slugAttributes();
         });
-        
-        static::updating(function($model) {
+
+        static::updating(function ($model) {
             $model->slugAttributes();
         });
     }
-    
+
     /**
      * Returns the slug collection.
+     *
      * @return void
      */
     public function getSlugAttribute()
     {
-	    if (property_exists(get_called_class(), 'slug')) {
-		    return $this->slug;
-		}
-		
-		return [];
+        if (property_exists(get_called_class(), 'slug')) {
+            return $this->slug;
+        }
+
+        return [];
     }
-    
+
     /**
      * Adds slug attributes to the dataset, used before saving.
+     *
      * @return void
      */
     public function slugAttributes()
@@ -54,13 +57,15 @@ public function slugAttributes()
             $this->setSluggedValue($slugAttribute, $sourceAttributes);
         }
     }
-    
+
     /**
      * Sets a single slug attribute value.
-     * @param string $slugAttribute Attribute to populate with the slug.
-     * @param mixed $sourceAttributes Attribute(s) to generate the slug from.
-     * Supports dotted notation for relations.
-     * @param int $maxLength Maximum length for the slug not including the counter.
+     *
+     * @param string $slugAttribute    Attribute to populate with the slug.
+     * @param mixed  $sourceAttributes Attribute(s) to generate the slug from.
+     *                                 Supports dotted notation for relations.
+     * @param int    $maxLength        Maximum length for the slug not including the counter.
+     *
      * @return string The generated value.
      */
     public function setSluggedValue($slugAttribute, $sourceAttributes, $maxLength = 240)
@@ -69,31 +74,32 @@ public function setSluggedValue($slugAttribute, $sourceAttributes, $maxLength =
             if (!is_array($sourceAttributes)) {
                 $sourceAttributes = [$sourceAttributes];
             }
-            
+
             $slugArr = [];
             foreach ($sourceAttributes as $attribute) {
                 $slugArr[] = $this->getSluggableSourceAttributeValue($attribute);
             }
-            
+
             $slug = implode(' ', $slugArr);
             $slug = substr($slug, 0, $maxLength);
             $slug = Str::slug($slug, $this->getSluggableSeparator());
-        }
-        else {
+        } else {
             $slug = $this->{$slugAttribute};
         }
-        
+
         if (empty($slug)) {
-	        throw new Exception('Slug attribute [$slugAttribute] can not be empty.');
+            throw new Exception('Slug attribute [$slugAttribute] can not be empty.');
         }
-        
+
         return $this->{$slugAttribute} = $this->getSluggableUniqueAttributeValue($slugAttribute, $slug);
     }
-    
+
     /**
      * Ensures a unique attribute value, if the value is already used a counter suffix is added.
-     * @param string $name The database column name.
-     * @param value $value The desired column value.
+     *
+     * @param string $name  The database column name.
+     * @param value  $value The desired column value.
+     *
      * @return string A safe value that is unique.
      */
     protected function getSluggableUniqueAttributeValue($name, $value)
@@ -109,46 +115,51 @@ protected function getSluggableUniqueAttributeValue($name, $value)
         // If this model already have a slug that matches the requirements, then return that slug
         $current = $this->newQuery()->whereRaw("{$name} RLIKE '{$_value}(-[0-9]*)?$'")->where($keyName, $keyValue)->first();
         if ($current) {
-	    	return $current->{$name};
-	    }
-        
+            return $current->{$name};
+        }
+
         // Get the latest slug matching the requirements to ensure that it is unique
         $latestSlug = $this->newQuery()->whereRaw("{$name} RLIKE '{$_value}(-[0-9]*)?$'")->latest($name)->pluck($name);
         if ($latestSlug) {
-	        if ($latestSlug == $_value) {
-		        return $_value . $separator . 1;
-	        }
-	        
-	        $pieces = explode('-', $latestSlug);
-	        $number = intval(end($pieces));
-	        return $_value . $separator . ($number + 1);
+            if ($latestSlug == $_value) {
+                return $_value.$separator. 1;
+            }
+
+            $pieces = explode('-', $latestSlug);
+            $number = intval(end($pieces));
+
+            return $_value.$separator.($number + 1);
         }
-        
+
         return $_value;
     }
-    
+
     /**
      * Get an attribute relation value using dotted notation.
-     * Eg: author.name
+     * Eg: author.name.
+     *
      * @return mixed
      */
     protected function getSluggableSourceAttributeValue($key)
     {
-        if (strpos($key, '.') === false)
+        if (strpos($key, '.') === false) {
             return $this->getAttribute($key);
+        }
         $keyParts = explode('.', $key);
         $value = $this;
         foreach ($keyParts as $part) {
             if (!isset($value[$part])) {
-                return null;
+                return;
             }
             $value = $value[$part];
         }
+
         return $value;
     }
-    
+
     /**
      * Override the default slug separator.
+     *
      * @return string
      */
     public function getSluggableSeparator()