calculate trashbin size per user

apps/files_trashbin/appinfo/database.xml

@@ -89,4 +89,30 @@
 
  </table>
 
+ <table>
+
+  <name>*dbprefix*files_trashsize</name>
+
+  <declaration>
+
+   <field>
+    <name>user</name>
+    <type>text</type>
+    <default></default>
+    <notnull>true</notnull>
+    <length>50</length>
+   </field>
+
+   <field>
+    <name>size</name>
+    <type>text</type>
+    <default></default>
+    <notnull>true</notnull>
+    <length>50</length>
+   </field>
+     
+  </declaration>
+
+ </table>
+
 </database>

apps/files_trashbin/appinfo/version

-0.1
+0.3

apps/files_trashbin/lib/trash.php

@@ -53,7 +53,8 @@ class Trashbin {
 			$type = 'file';
 		}
 		
-		if (  ($trashbinSize = \OCP\Config::getAppValue('files_trashbin', 'size')) === null ) {
+		$trashbinSize = self::getTrashbinSize($user);
+		if ( $trashbinSize === false || $trashbinSize < 0 ) {
 			$trashbinSize = self::calculateSize(new \OC_FilesystemView('/'. $user.'/files_trashbin'));
 			$trashbinSize += self::calculateSize(new \OC_FilesystemView('/'. $user.'/versions_trashbin'));
 		}
@@ -89,7 +90,7 @@ class Trashbin {
 			$quota = \OCP\Util::computerFileSize(\OC_Appconfig::getValue('files', 'default_quota'));
 		}
 		if ( $quota == null ) {
-			$quota = \OC\Files\Filesystem::free_space('/');
+			$quota = \OC\Files\Filesystem::free_space('/') / count(\OCP\User::getUsers());
 		}
 		
 		// calculate available space for trash bin
@@ -102,7 +103,8 @@ class Trashbin {
 		}
 		
 		$trashbinSize -= self::expire($availableSpace);
-		\OCP\Config::setAppValue('files_trashbin', 'size', $trashbinSize);
+		
+		self::setTrashbinSize($user, $trashbinSize);
 	}
 	
 	
@@ -116,7 +118,8 @@ class Trashbin {
 		$user = \OCP\User::getUser();
 		$view = new \OC_FilesystemView('/'.$user);
 		
-		if (  ($trashbinSize = \OCP\Config::getAppValue('files_trashbin', 'size')) === null ) {
+		$trashbinSize = self::getTrashbinSize($user);
+		if ( $trashbinSize === false || $trashbinSize < 0 ) {
 			$trashbinSize = self::calculateSize(new \OC_FilesystemView('/'. $user.'/files_trashbin'));
 			$trashbinSize += self::calculateSize(new \OC_FilesystemView('/'. $user.'/versions_trashbin'));
 		}
@@ -185,7 +188,8 @@ class Trashbin {
 				$query->execute(array($user,$filename,$timestamp));
 			}
 
-			\OCP\Config::setAppValue('files_trashbin', 'size', $trashbinSize);
+			self::setTrashbinSize($user, $trashbinSize);
+			
 			return true;
 		} else {
 			\OC_Log::write('files_trashbin', 'Couldn\'t restore file from trash bin, '.$filename, \OC_log::ERROR);
@@ -205,7 +209,8 @@ class Trashbin {
 		$view = new \OC_FilesystemView('/'.$user);
 		$size = 0;
 	
-		if (  ($trashbinSize = \OCP\Config::getAppValue('files_trashbin', 'size')) === null ) {
+		$trashbinSize = self::getTrashbinSize($user);
+		if ( $trashbinSize === false || $trashbinSize < 0 ) {
 			$trashbinSize = self::calculateSize(new \OC_FilesystemView('/'. $user.'/files_trashbin'));
 			$trashbinSize += self::calculateSize(new \OC_FilesystemView('/'. $user.'/versions_trashbin'));
 		}
@@ -242,7 +247,7 @@ class Trashbin {
 		}
 		$view->unlink('/files_trashbin/'.$file);
 		$trashbinSize -= $size;
-		\OCP\Config::setAppValue('files_trashbin', 'size', $trashbinSize);
+		self::setTrashbinSize($user, $trashbinSize);
 		
 		return $size;
 	}
@@ -430,4 +435,35 @@ class Trashbin {
 		return $size;
 	}
 
+	/**
+	 * get current size of trash bin from a given user
+	 *
+	 * @param $user user who owns the trash bin
+	 * @return mixed trash bin size or false if no trash bin size is stored
+	 */
+	private static function getTrashbinSize($user) {
+		$query = \OC_DB::prepare('SELECT size FROM *PREFIX*files_trashsize WHERE user=?');
+		$result = $query->execute(array($user))->fetchAll();
+
+		if ($result) {
+			return $result[0]['size'];
+		}
+		return false;
+	}
+	
+	/**
+	 * write to the database how much space is in use for the trash bin
+	 *
+	 * @param $user owner of the trash bin
+	 * @param $size size of the trash bin
+	 */
+	private static function setTrashbinSize($user, $size) {
+		if ( self::getTrashbinSize($user) === false) {
+			$query = \OC_DB::prepare('INSERT INTO *PREFIX*files_trashsize (size, user) VALUES (?, ?)');
+		}else {
+			$query = \OC_DB::prepare('UPDATE *PREFIX*files_trashsize SET size=? WHERE user=?');
+		}
+		$query->execute(array($size, $user));
+	}
+	
 }