move SQL blog commit to DB class

public/index.php

@@ -105,12 +105,8 @@ $app->map(['GET', 'POST'], '/blog/create', function (Request $request, Response
         } else {
             $data = $request->getParsedBody();
             global $db;
-            $stmt = $db->prepare("INSERT INTO blogs (slug, title, content) VALUES (:slug, :title, :content)");
-            $stmt->bindValue(':slug', $data['slug'], SQLITE3_TEXT);
-            $stmt->bindValue(':title', $data['title'], SQLITE3_TEXT);
-            $stmt->bindValue(':content', $data['content'], SQLITE3_TEXT);
-            $res = $stmt->execute();
 
+            $res = $db->createBlog($data);
             if($res) {
                 return $response->withHeader('Location', '/')->withStatus(302);
             } else {

src/DB.php

@@ -20,6 +20,16 @@ class DB extends SQLite3 {
 			return false;
 		}
 	}
+
+	public function createBlog($data) {
+		$this->enableExceptions(false);
+		$stmt = $this->prepare("INSERT INTO blogs (slug, title, content) VALUES (:slug, :title, :content)");
+		$stmt->bindValue(':slug', $data['slug'], SQLITE3_TEXT);
+		$stmt->bindValue(':title', $data['title'], SQLITE3_TEXT);
+		$stmt->bindValue(':content', $data['content'], SQLITE3_TEXT);
+		$res = $stmt->execute();
+		return $res;
+	}
 }
 
 ?>