Create slug folder(s) if not existing

Add makeDirectory in FilesSystem.php

app/Parvula/FilesSystem.php

@@ -30,7 +30,7 @@ function __construct($workingDirectory = '.') {
 	}
 
 	/**
-	 * Check if file exists
+	 * Check if a file or directory exists
 	 *
 	 * @param string $filename File name
 	 * @return boolean If file exists
@@ -145,6 +145,17 @@ public function rename($oldName, $newName) {
 		return rename($this->workingDirectory . $oldName, $this->workingDirectory . $newName);
 	}
 
+	/**
+	 * Makes directory (including sub directories)
+	 *
+	 * @param  string  $path Directory to create
+	 * @param  integer $mode Optional
+	 * @return bool
+	 */
+	public function makeDirectory($path, $mode = 0777) {
+		return mkdir($this->workingDirectory . $path, $mode, true);
+	}
+
 	/**
 	 * Try to change the mode of the specified file to that given in mode
 	 *

app/Parvula/Models/Mappers/PagesFlatFiles.php

@@ -133,6 +133,11 @@ public function create($page) {
 				return false;
 			}
 
+			// If parent folder does not exists
+			if (!$fs->exists(dirname($pagePath))) {
+				$fs->makeDirectory(dirname($pagePath));
+			}
+
 			$data = $this->renderer->render($page);
 
 			if (!$fs->write($pagePath, $data)) {