added files

application/models/Admin_model.php

@@ -0,0 +1,30 @@
+<?php
+class Admin_model extends CI_model
+{
+
+  function login_valid($username,$password)
+  {
+    $this->db->from('tbl_usermaster');
+    $this->db->where('user_name',$username);
+    $this->db->where('user_password',$password);
+    $this->db->where('user_status','active');
+    if($query=$this->db->get())
+    {
+      return $query->row_array();
+    }
+    else
+    {
+     return false;
+   }
+ }
+
+ public function totalrows($tablename='',$fields='') 
+ {
+  $this->db->select($fields);
+  $this->db->from($tablename);
+  $query = $this->db->get();
+  $responce = $query->num_rows();
+  return $responce;
+}
+}
+?>