Working on adding averageRatingForAll.

Author: codebyray

src/Contracts/ReviewRateable.php

@@ -180,4 +180,11 @@ public function deleteRating($id);
      * @return mixed
      */
     public function getUserRatings($id, $author, $sort = 'desc');
+
+    /**
+     *
+     * @param $round
+     * @return double
+     */
+    public function averageRatingForAll($round = null);
 }

src/Models/Rating.php

@@ -213,4 +213,28 @@ public function getUserRatings($id, $author, $sort = 'desc')
 
         return $rating;
     }
+
+    /**
+     * @param $id
+     *
+     * @return mixed
+     */
+    public function getAverageRatingForAll($round = null, $onlyApproved = false)
+    {
+        $where = $onlyApproved ? [['approved', '1']] : [];
+        $avgExpression = null;
+
+        if ($round) {
+            $avgExpression = 'ROUND(AVG(rating), ' . $round . ') as averageReviewRateable';
+        } else {
+            $avgExpression = 'AVG(rating) as averageReviewRateable';
+        }
+
+        return $this->ratings()
+            ->selectRaw($avgExpression)
+            ->where($where)
+            ->get()
+            ->first()
+            ->averageReviewRateable;
+    }
 }

src/Traits/ReviewRateable.php

@@ -382,4 +382,14 @@ public function getUserRatings($id, $author, $sort = 'desc')
     {
         return (new Rating())->getUserRatings($id, $author, $sort = 'desc');
     }
+
+    /**
+     * @param $id
+     *
+     * @return mixed
+     */
+    public function averageRatingForAll($round = null, $onlyApproved = false)
+    {
+        return (new Rating())->getAverageRatingForAll($round, $onlyApproved);
+    }
 }