Simplify workflow engine

review256001

invoice.py

@@ -2,10 +2,10 @@
 #this repository contains the full copyright notices and license terms.
 import datetime
 import copy
-from trytond.model import ModelWorkflow, ModelView, ModelSQL, fields
+from trytond.model import Model, fields
 
 
-class Invoice(ModelWorkflow, ModelSQL, ModelView):
+class Invoice(Model):
     _name = 'account.invoice'
     open_date = fields.DateTime('Open Date')
 

setup.py

@@ -12,7 +12,7 @@ minor_version = int(minor_version)
 
 requires = []
 for dep in info.get('depends', []):
-    if not re.match(r'(ir|res|workflow|webdav)(\W|$)', dep):
+    if not re.match(r'(ir|res|webdav)(\W|$)', dep):
         requires.append('trytond_%s >= %s.%s, < %s.%s' %
                 (dep, major_version, minor_version, major_version,
                     minor_version + 1))