Fixes #93

Author: mikebronner

src/CachedBuilder.php

@@ -23,13 +23,13 @@ public function avg($column)
         return $this->cachedValue(func_get_args(), $cacheKey);
     }
 
-    public function count($columns = ["*"])
+    public function count($columns = "*")
     {
         if (! $this->isCachable()) {
             return parent::count($columns);
         }
 
-        $cacheKey = $this->makeCacheKey($columns, null, "-count");
+        $cacheKey = $this->makeCacheKey([$columns], null, "-count");
 
         return $this->cachedValue(func_get_args(), $cacheKey);
     }

tests/Integration/CachedBuilderTest.php

@@ -243,6 +243,28 @@ public function testCountModelResultsCreatesCache()
         $this->assertEquals($liveResults, $cachedResults);
     }
 
+    public function testCountWithStringCreatesCache()
+    {
+        $authors = (new Author)
+            ->with('books', 'profile')
+            ->count("id");
+        $key = sha1('genealabs:laravel-model-caching:testing:genealabslaravelmodelcachingtestsfixturesauthor_id-books-profile-count');
+        $tags = [
+            'genealabs:laravel-model-caching:testing:genealabslaravelmodelcachingtestsfixturesauthor',
+            'genealabs:laravel-model-caching:testing:genealabslaravelmodelcachingtestsfixturesbook',
+            'genealabs:laravel-model-caching:testing:genealabslaravelmodelcachingtestsfixturesprofile',
+        ];
+
+        $cachedResults = $this->cache()->tags($tags)
+            ->get($key)['value'];
+        $liveResults = (new UncachedAuthor)
+            ->with('books', 'profile')
+            ->count("id");
+
+        $this->assertEquals($authors, $cachedResults);
+        $this->assertEquals($liveResults, $cachedResults);
+    }
+
     public function testFindModelResultsCreatesCache()
     {
         $author = collect()->push((new Author)->find(1));