book, line, category, types: berechtigung für company-user + test,

book: währung neu,
line: buchungstyp, betrag, credit, debit, währung, sortierung

types.py

@@ -4,6 +4,7 @@
 # full copyright notices and license terms.
 
 from trytond.model import ModelView, ModelSQL, fields, Unique
+from trytond.transaction import Transaction
 
 
 class Type(ModelSQL, ModelView):
@@ -12,6 +13,8 @@ class Type(ModelSQL, ModelView):
 
     name = fields.Char(string='Name', required=True, translate=True)
     short = fields.Char(string='Abbreviation', required=True, size=3)
+    company = fields.Many2One(string='Company', model_name='company.company',
+        required=True, ondelete="RESTRICT")
 
     @classmethod
     def __setup__(cls):
@@ -39,4 +42,8 @@ class Type(ModelSQL, ModelView):
             ('short',) + tuple(clause[1:]),
             ]
 
+    @staticmethod
+    def default_company():
+        return Transaction().context.get('company') or None
+
 # end Type