implement uploading a file as answer for Questtype ?Submit?

app/exceptions/MaxFilesizeException.inc

@@ -0,0 +1,51 @@
+<?php
+
+	/**
+	 * The Legend of Z
+	 *
+	 * @author	Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
+	 * @copyright	2014 Heinrich-Heine-Universität Düsseldorf
+	 * @license	http://www.gnu.org/licenses/gpl.html
+	 * @link	https://bitbucket.org/coderkun/the-legend-of-z
+	 */
+	
+	namespace hhu\z\exceptions;
+	
+	
+	/**
+	 * Exception: File exceeds size maximum.
+	 * 
+	 * @author	Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
+	 */
+	class MaxFilesizeException extends \nre\core\Exception
+	{
+		/**
+		 * Error code
+		 * 
+		 * @var int
+		 */
+		const CODE	=	202;
+		/**
+		 * Error message
+		 * 
+		 * @var string
+		 */
+		const MESSAGE	=	'File exceeds size maximum';
+		
+		
+		
+		
+		/**
+		 * Construct a new exception.
+		 */
+		function __construct($message=self::MESSAGE, $code=self::CODE)
+		{
+			parent::__construct(
+				$message,
+				$code
+			);
+		}
+		
+	}
+
+?>

app/exceptions/WrongFiletypeException.inc

@@ -0,0 +1,51 @@
+<?php
+
+	/**
+	 * The Legend of Z
+	 *
+	 * @author	Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
+	 * @copyright	2014 Heinrich-Heine-Universität Düsseldorf
+	 * @license	http://www.gnu.org/licenses/gpl.html
+	 * @link	https://bitbucket.org/coderkun/the-legend-of-z
+	 */
+	
+	namespace hhu\z\exceptions;
+	
+	
+	/**
+	 * Exception: File has wrong filetype.
+	 * 
+	 * @author	Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
+	 */
+	class WrongFiletypeException extends \nre\core\Exception
+	{
+		/**
+		 * Error code
+		 * 
+		 * @var int
+		 */
+		const CODE	=	201;
+		/**
+		 * Error message
+		 * 
+		 * @var string
+		 */
+		const MESSAGE	=	'File has wrong type';
+		
+		
+		
+		
+		/**
+		 * Construct a new exception.
+		 */
+		function __construct($message=self::MESSAGE, $code=self::CODE)
+		{
+			parent::__construct(
+				$message,
+				$code
+			);
+		}
+		
+	}
+
+?>

questtypes/submit/SubmitQuesttypeController.inc

@@ -32,6 +32,7 @@
 		/**
 		 * Save the answers of a Character for a Quest.
 		 * 
+		 * @throws	SubmissionNotValidException
 		 * @param	array	$seminary	Current Seminary data
 		 * @param	array	$questgroup	Current Questgroup data
 		 * @param	array	$quest		Current Quest data
@@ -44,8 +45,34 @@
 			$characterSubmission = $this->Submit->getCharacterSubmission($quest['id'], $character['id']);
 			
 			// Save answer
-			if(is_null($characterSubmission) && array_key_exists(0, $answers)) {
-				$this->Submit->setCharacterSubmission($quest['id'], $character['id'], $answers[0]);
+			if(is_null($characterSubmission) && array_key_exists('answers', $_FILES))
+			{
+				$answer = $_FILES['answers'];
+				
+				// Check mimetype
+				$mimetypes = $this->Submit->getAllowedMimetypes($seminary['id']);
+				$answerMimetype = null;
+				foreach($mimetypes as &$mimetype) {
+					if($mimetype['mimetype'] == $answer['type']) {
+						$answerMimetype = $mimetype;
+						break;
+					}
+				}
+				
+				// Check file
+				if(is_null($answerMimetype)) {
+					throw new \hhu\z\exceptions\SubmissionNotValidException(
+						new \hhu\z\exceptions\WrongFiletypeException()
+					);
+				}
+				if($answer['size'] > $answerMimetype['size']) {
+					throw new \hhu\z\exceptions\SubmissionNotValidException(
+						new \hhu\z\exceptions\MaxFilesizeException()
+					);
+				}
+				
+				// Save file
+				$this->Submit->setCharacterSubmission($seminary['id'], $quest['id'], $this->Auth->getUserId(), $character['id'], $answer);
 			}
 		}
 		
@@ -77,26 +104,25 @@
 		 * @param	array		$questgroup	Current Questgroup data
 		 * @param	array		$quest		Current Quest data
 		 * @param	array		$character	Current Character data
+		 * @param	Exception	$exception	Character submission exception
 		 */
-		public function quest($seminary, $questgroup, $quest, $character)
+		public function quest($seminary, $questgroup, $quest, $character, $exception)
 		{
 			// Answer (Submission)
 			$characterSubmission = $this->Submit->getCharacterSubmission($quest['id'], $character['id']);
 			
-			// Wordcount
-			$wordcount = 0;
-			if(!is_null($characterSubmission)) {
-				$wordcount = count(preg_split('/\s+/', $characterSubmission['text']));
-			}
-			
 			// Has Character already solved Quest?
 			$solved = $this->Quests->hasCharacterSolvedQuest($quest['id'], $character['id']);
 			
+			// Get allowed mimetypes
+			$mimetypes = $this->Submit->getAllowedMimetypes($seminary['id']);
+			
 			
 			// Pass data to view
 			$this->set('submission', $characterSubmission);
-			$this->set('wordcount', $wordcount);
 			$this->set('solved', $solved);
+			$this->set('mimetypes', $mimetypes);
+			$this->set('exception', $exception);
 		}
 		
 		

questtypes/submit/SubmitQuesttypeModel.inc

@@ -19,32 +19,48 @@
 	 */
 	class SubmitQuesttypeModel extends \hhu\z\QuesttypeModel
 	{
+		/**
+		 * Required models
+		 * 
+		 * @var array
+		 */
+		public $models = array('uploads');
 		
 		
 		
 		
 		/**
-		 * Save Character’s submitted text.
+		 * Save Character’s submitted upload.
 		 * 
 		 * @param	int	$questId	ID of Quest
 		 * @param	int	$characterId	ID of Character
-		 * @param	string	$text		Submitted text
+		 * @param	array	$file		Submitted upload
 		 */
-		public function setCharacterSubmission($questId, $characterId, $text)
+		public function setCharacterSubmission($seminaryId, $questId, $userId, $characterId, $file)
 		{
+			// Save file on harddrive
+			$uploadId = $this->Uploads->uploadFile($userId, $file['name'], $file['tmp_name'], $file['type'], $seminaryId);
+			if($uploadId === false) {
+				return false;
+			}
+			
+			// Create database record
 			$this->db->query(
 				'INSERT INTO questtypes_submit_characters '.
-				'(quest_id, character_id, text) '.
+				'(quest_id, character_id, upload_id) '.
 				'VALUES '.
 				'(?, ?, ?) ',
-				'iis',
-				$questId, $characterId, $text
+				'iii',
+				$questId, $characterId, $uploadId
 			);
+			
+			
+			return true;
 		}
 		
 		
 		/**
-		 * Get text submitted by Character.
+		 * Get upload submitted by Character.
 		 * 
 		 * @param	int	$questId	ID of Quest
 		 * @param	int	$characterId	ID of Character
@@ -53,20 +69,38 @@
 		public function getCharacterSubmission($questId, $characterId)
 		{
 			$data = $this->db->query(
-				'SELECT created, text '.
+				'SELECT upload_id '.
 				'FROM questtypes_submit_characters '.
 				'WHERE quest_id = ? AND character_id = ?',
 				'ii',
 				$questId, $characterId
 			);
 			if(!empty($data)) {
-				return $data[0];
+				return $this->Uploads->getUploadById($data[0]['upload_id']);
 			}
 			
 			
 			return null;
 		}
 		
+		
+		/**
+		 * Get allowed mimetypes for uploading a file.
+		 * 
+		 * @param	int	$seminaryId	ID of Seminary
+		 * @return	array			Allowed mimetypes
+		 */
+		public function getAllowedMimetypes($seminaryId)
+		{
+			return $this->db->query(
+				'SELECT id, mimetype, size '.
+				'FROM questtypes_submit_mimetypes '.
+				'WHERE seminary_id = ?',
+				'i',
+				$seminaryId
+			);
+		}
+		
 	}
 
 ?>

questtypes/submit/html/quest.tpl

@@ -1,14 +1,25 @@
-<form method="post">
-	<textarea name="answers[]" <?=(!is_null($submission)) ? 'disabled="disabled"' : ''?>><?=!is_null($submission) ? $submission['text'] : ''?></textarea><br />
-	
-	<?php if(!is_null($submission)) : ?>
-	<?php if($wordcount > 1) : ?>
-	<?=$wordcount?> <?=_('Words')?><br />
+<?php if(!is_null($exception)) : ?>
+<p class="error">
+	<?php if($exception->getNestedException() instanceof \hhu\z\exceptions\WrongFiletypeException) : ?>
+	<?=_('File has wrong type')?>
+	<?php elseif($exception->getNestedException() instanceof \hhu\z\exceptions\WrongFiletypeException) : ?>
+	<?=_('File exceeds size maximum')?>
 	<?php else : ?>
-	<?=$wordcount?> <?=_('Word')?><br />
+	<?=$exception->getNestedException()->getMessage()?>	
 	<?php endif ?>
-	(<?=sprintf(_('submitted at %s on %s h'), $dateFormatter->format(new \DateTime($submission['created'])), $timeFormatter->format(new \DateTime($submission['created'])))?>)
-	<?php else : ?>
+</p>
+<?php endif ?>
+<?php if(is_null($submission)) : ?>
+<form method="post" enctype="multipart/form-data">
+	<input type="file" name="answers" /><br />
+	Erlaubte Dateiformate:
+	<ul>
+		<?php foreach($mimetypes as &$mimetype) : ?>
+		<li><?=$mimetype['mimetype']?> (<?=_('max.')?> <?=$numberFormatter->format(round($mimetype['size']/(1024*1024),2))?> MiB)</li>
+		<?php endforeach ?>
+	</ul>
 	<input type="submit" name="submit" value="<?=_('solve')?>" />
-	<?php endif ?>
 </form>
+<?php else : ?>
+<a href="<?=$linker->link(array('uploads','index',$submission['url']))?>"><?=$submission['name']?></a> (<?=sprintf(_('submitted at %s on %s h'), $dateFormatter->format(new \DateTime($submission['created'])), $timeFormatter->format(new \DateTime($submission['created'])))?>)
+<?php endif ?>

questtypes/submit/html/submission.tpl

@@ -1,5 +1,5 @@
 <form method="post">
-	<?=\hhu\z\Utils::t($submission['text'])?>
+	<a href="<?=$linker->link(array('uploads','index',$submission['url']))?>"><?=$submission['name']?></a> (<?=sprintf(_('submitted at %s on %s h'), $dateFormatter->format(new \DateTime($submission['created'])), $timeFormatter->format(new \DateTime($submission['created'])))?>)
 	<br /><br />
 	
 	<?php if($solved) : ?>