From d5f727623a2b2d3070c614447bad99fc531fe01e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Mart=C3=ADn=20Marrese?= <marrese@gmail.com>
Date: Fri, 15 Aug 2003 20:11:41 +0000
Subject: [PATCH] Agrege una funcion para verificar si un login es valido

---
 lib/MECON/Usuario.php | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/lib/MECON/Usuario.php b/lib/MECON/Usuario.php
index d8ef1eb..bdfd064 100644
--- a/lib/MECON/Usuario.php
+++ b/lib/MECON/Usuario.php
@@ -270,5 +270,32 @@ class MECON_Usuario {
     }
     // -X2C
 
+    /**
+      * Verifica si el login pasado por parametro es valido
+      *
+      * @param string $login Login a verificar
+      *
+      * @return mixed
+      * @access public
+      */
+    function verificarLogin($login = null) {
+        if ($login) {
+            $db = DB::connect($this->dsn);
+            if (PEAR::isError($db)) { 
+                return $db;
+            }
+            $sql = "SELECT count(*) as cuenta FROM Usuario WHERE login = '$login'";
+            $result = $db->query($sql);
+            if (PEAR::isError($result)) { 
+                return $result;
+            }
+            $row = $result->fetchRow(DB_FETCHMODE_ASSOC); 
+            if ($row['cuenta'] != 0) {
+                return true;
+            }
+        }
+        return false;
+    }
+
 } // -X2C Class :MECON_Usuario
 ?>
\ No newline at end of file
-- 
2.43.0