duser: add get_email()

Signed-off-by: Florian Pritz <bluewind@xinu.at>

2 files changed, 26 insertions, 1 deletions

diff --git a/application/libraries/Duser/Duser.php b/application/libraries/Duser/Duser.php
index 3bc492b71..19d1bfa09 100644
--- a/application/libraries/Duser/Duser.php
+++ b/application/libraries/Duser/Duser.php
@@ -92,4 +92,11 @@ class Duser extends CI_Driver_Library {
 
 		return $this->{$this->_adapter}->username_exists($username);
 	}
+
+	public function get_email($userid)
+	{
+		$this->require_implemented(__FUNCTION__);
+
+		return $this->{$this->_adapter}->get_email($userid);
+	}
 }
diff --git a/application/libraries/Duser/drivers/Duser_db.php b/application/libraries/Duser/drivers/Duser_db.php
index 48fbc007d..1258ec585 100644
--- a/application/libraries/Duser/drivers/Duser_db.php
+++ b/application/libraries/Duser/drivers/Duser_db.php
@@ -12,7 +12,8 @@ class Duser_db extends Duser_Driver {
 	public $optional_functions = array(
 		'username_exists',
 		'can_reset_password',
-		'can_register_new_users'
+		'can_register_new_users',
+		'get_email',
 	);
 
 	public function login($username, $password)
@@ -60,4 +61,21 @@ class Duser_db extends Duser_Driver {
 		}
 	}
 
+	public function get_email($userid)
+	{
+		$CI =& get_instance();
+
+		$query = $CI->db->query("
+			SELECT email
+			FROM users
+			WHERE id = ?
+			", array($userid))->row_array();
+
+		if (empty($query)) {
+			show_error("Failed to get email address from db");
+		}
+
+		return $query["email"];
+	}
+
 }