Active Record

__init__.py

@@ -1,4 +1,11 @@
 #This file is part of Tryton.  The COPYRIGHT file at the top level of this
 #repository contains the full copyright notices and license terms.
 
+from trytond.pool import Pool
 from .stock import *
+
+
+def register():
+    Pool.register(
+        Location,
+        module='stock_location_sequence', type_='model')

stock.py

@@ -1,14 +1,18 @@
 #This file is part of Tryton.  The COPYRIGHT file at the top level
 #of this repository contains the full copyright notices and license terms.
-from trytond.model import ModelView, ModelSQL, fields
+from trytond.model import fields
 from trytond.pyson import Not, Eval, Bool
 from trytond.transaction import Transaction
 from trytond.backend import TableHandler
+from trytond.pool import PoolMeta
+
+__all__ = ['Location']
+__metaclass__ = PoolMeta
 
 
-class Location(ModelSQL, ModelView):
+class Location:
     "Stock Location"
-    _name = 'stock.location'
+    __name__ = 'stock.location'
     sequence = fields.Integer('Sequence',
         order_field='(%(table)s.sequence IS NULL) %(order)s, '
         '%(table)s.sequence %(order)s',
@@ -17,17 +21,17 @@ class Location(ModelSQL, ModelView):
             },
         depends=['active'])
 
-    def __init__(self):
-        super(Location, self).__init__()
-        self._order.insert(0, ('sequence', 'ASC'))
+    @classmethod
+    def __setup__(cls):
+        super(Location, cls).__setup__()
+        cls._order.insert(0, ('sequence', 'ASC'))
 
-    def init(self, module_name):
+    @classmethod
+    def __register__(cls, module_name):
         cursor = Transaction().cursor
-        table = TableHandler(cursor, self, module_name)
+        table = TableHandler(cursor, cls, module_name)
 
-        super(Location, self).init(module_name)
+        super(Location, cls).__register__(module_name)
 
         # Migration from 2.4: drop required on sequence
         table.not_null_action('sequence', action='remove')
-
-Location()