disallow creating and renaming of folders that already exist

bl/folderbl.php

@@ -40,11 +40,20 @@ class FolderBl extends Bl {
 		return $this->mapper->findAllFromUser($userId);
 	}
 
+	private function allowNoNameTwice($folderName, $userId){
+		$existingFolders = $this->mapper->findByName($folderName, $userId);
+		if(count($existingFolders) > 0){
+			throw new BLException('Error: Folder with name ' . $folderName . 
+				' exists already!');
+		}
+	}
+
+	public function create($folderName, $userId, $parentId=0) {
+		$this->allowNoNameTwice($folderName, $userId);
 
-	public function create($name, $parentId) {
-		// TODO: throw error when already existing
 		$folder = new Folder();
-		$folder->setName($name);
+		$folder->setName($folderName);
+		$folder->setUserId($userId);
 		$folder->setParentId($parentId);
 		return $this->mapper->insert($folder);
 	}
@@ -58,7 +67,8 @@ class FolderBl extends Bl {
 
 
 	public function rename($folderId, $folderName, $userId){
-		// TODO: throw error when already existing
+		$this->allowNoNameTwice($folderName, $userId);
+
 		$folder = $this->find($folderId, $userId);
 		$folder->setName($folderName);
 		$this->mapper->update($folder);

db/foldermapper.php

@@ -63,9 +63,19 @@ class FolderMapper extends NewsMapper {
 
 	public function findAllFromUser($userId){
 		$sql = 'SELECT * FROM `*dbprefix*news_folders` ' .
-			'AND `user_id` = ?';
+			'WHERE `user_id` = ?';
 		$params = array($userId);
 
 		return $this->findAllRows($sql, $params);
 	}
+
+
+	public function findByName($folderName, $userId){
+		$sql = 'SELECT * FROM `*dbprefix*news_folders` ' .
+			'WHERE `name` = ?' .
+			'AND `user_id` = ?';
+		$params = array($folderName, $userId);
+
+		return $this->findAllRows($sql, $params);
+	}
 }

tests/bl/FolderBlTest.php

@@ -65,18 +65,35 @@ class FolderBlTest extends \OCA\AppFramework\Utility\TestUtility {
 		$folder = new Folder();
 		$folder->setName('hey');
 		$folder->setParentId(5);
+		$folder->setUserId('john');
 
 		$this->folderMapper->expects($this->once())
 			->method('insert')
 			->with($this->equalTo($folder))
 			->will($this->returnValue($folder));
 
-		$result = $this->folderBl->create('hey', 5);
+		$result = $this->folderBl->create('hey', 'john', 5);
 
 		$this->assertEquals($folder, $result);
 	}
 
 
+	public function testCreateThrowsExWhenFolderNameExists(){
+		$folderName = 'hihi';
+		$rows = array(
+			array('id' => 1)
+		);
+		
+		$this->folderMapper->expects($this->once())
+			->method('findByName')
+			->with($this->equalTo($folderName))
+			->will($this->returnValue($rows));
+
+		$this->setExpectedException('\OCA\News\Bl\BLException');
+		$result = $this->folderBl->create($folderName, 'john', 3);
+	}
+
+
 	public function testOpen(){
 		$folder = new Folder();
 
@@ -114,4 +131,21 @@ class FolderBlTest extends \OCA\AppFramework\Utility\TestUtility {
 		$this->assertEquals('bogus', $folder->getName());		
 	}
 
+
+	public function testRenameThrowsExWhenFolderNameExists(){
+		$folderName = 'hihi';
+		$rows = array(
+			array('id' => 1)
+		);
+		
+		$this->folderMapper->expects($this->once())
+			->method('findByName')
+			->with($this->equalTo($folderName))
+			->will($this->returnValue($rows));
+
+		$this->setExpectedException('\OCA\News\Bl\BLException');
+		$result = $this->folderBl->rename(3, $folderName, 'john');
+	}
+
+
 }

tests/db/FolderMapperTest.php

@@ -107,7 +107,7 @@ class FolderMapperTest extends \OCA\AppFramework\Utility\MapperTestUtility {
 			array('id' => $this->folders[1]->getId())
 		);
 		$sql = 'SELECT * FROM `*dbprefix*news_folders` ' .
-			'AND `user_id` = ?';
+			'WHERE `user_id` = ?';
 		
 		$this->setMapperResult($sql, array($userId), $rows);
 		
@@ -116,4 +116,19 @@ class FolderMapperTest extends \OCA\AppFramework\Utility\MapperTestUtility {
 	}
 
 
+	public function testFindByName(){
+		$userId = 'john';
+		$rows = array(
+			array('id' => $this->folders[0]->getId()),
+			array('id' => $this->folders[1]->getId())
+		);
+		$sql = 'SELECT * FROM `*dbprefix*news_folders` ' .
+			'WHERE `user_id` = ?';
+		
+		$this->setMapperResult($sql, array($userId), $rows);
+		
+		$result = $this->folderMapper->findAllFromUser($userId);
+		$this->assertEquals($this->folders, $result);
+	}
+
 }