PHP namespace is not placed on a separate line

TODO.txt

@@ -1 +1 @@
-- Add has-many-and-belongs-to relation.
+- Add support for has-many-and-belongs-to relation.

generate.py

@@ -7,7 +7,6 @@ from itertools import combinations
 
 PRIMARY_KEY = 'id'
 TAB = '\t'
-MODEL_NAMESPACE = ''
 
 
 def php_value(data, indent=0):
@@ -187,14 +186,14 @@ class Model(object):
                                   php_value(self.accessible_attr))
 
     def generate_php(self, add_php_block=False):
-        # PHP delimiters
-        php = '<?php\n\n%s\n\n?>'
-
         # Class definition
         classname = self.classname()
 
         if self.options.get('namespace'):
-            classname = options['namespace'] + '\\' + classname
+            namespace = 'namespace %s;\n\n' % self.options['namespace']
+            #classname = options['namespace'] + '\\' + classname
+        else:
+            namespace = ''
 
         classdef = 'class %s extends ActiveRecord\\Model {\n%%s\n}' % classname
 
@@ -212,8 +211,8 @@ class Model(object):
         if self.options.get('create_accessible', True):
             lines.append(self.php_attr_accessible())
 
-        php = classdef % '\n'.join([TAB + line
-                                    for line in lines if line is not None])
+        inner_lines = [TAB + line for line in lines if line is not None]
+        php = namespace + classdef % '\n'.join(inner_lines)
 
         return php_block(php) if add_php_block else php
 
@@ -322,7 +321,6 @@ if __name__ == '__main__':  # pragma: nocover
     parser.add_argument('-s', '--spaces', nargs='?', const=4, type=int,
                         help='use spaces instead of tabs (4 by default)')
     args = parser.parse_args()
-    print args
     options = {}
 
     for arg, value in args._get_kwargs():