Add parsing for where doesnthave(), fixes #23

Author: mikebronner

src/CachedBuilder.php

@@ -81,8 +81,8 @@ protected function getWhereClauses(array $wheres = []) : string
         }
 
         return $wheres->reduce(function ($carry, $where) {
-            if (in_array($where['type'], ['Exists', 'Nested'])) {
-                return $this->getWhereClauses($where['query']->wheres);
+            if (in_array($where['type'], ['Exists', 'Nested', 'NotExists'])) {
+                return '_' . strtolower($where['type']) . $this->getWhereClauses($where['query']->wheres);
             }
 
             if ($where['type'] === 'Column') {

tests/Unit/CachedBuilderTest.php

@@ -507,7 +507,7 @@ public function testExistsRelationshipWhereClauseParsing()
         $authors = (new Author)->whereHas('books')
             ->get();
 
-        $key = 'genealabslaravelmodelcachingtestsfixturesauthor_and_authors.id_=_books.author_id';
+        $key = 'genealabslaravelmodelcachingtestsfixturesauthor_exists_and_authors.id_=_books.author_id';
         $tags = ['genealabslaravelmodelcachingtestsfixturesauthor'];
 
         $cachedResults = cache()->tags($tags)->get($key);
@@ -518,6 +518,26 @@ public function testExistsRelationshipWhereClauseParsing()
         $this->assertEmpty($liveResults->diffAssoc($cachedResults));
     }
 
+    public function testDoesntHaveWhereClaseParsing()
+    {
+        $authors = (new Author)
+            ->doesntHave('books')
+            ->get();
+
+        $key = 'genealabslaravelmodelcachingtestsfixturesauthor_notexists_and_authors.id_=_books.author_id';
+        $tags = ['genealabslaravelmodelcachingtestsfixturesauthor'];
+
+        $cachedResults = cache()
+            ->tags($tags)
+            ->get($key);
+        $liveResults = (new UncachedAuthor)
+            ->doesntHave('books')
+            ->get();
+
+        $this->assertEmpty($authors->diffAssoc($cachedResults));
+        $this->assertEmpty($liveResults->diffAssoc($cachedResults));
+    }
+
     public function testColumnsRelationshipWhereClauseParsing()
     {
         $author = (new Author)