asset: bereichsgrenzen für currency_digits, farbe rot für tagesnegativ

asset.py

@@ -60,7 +60,10 @@ class Asset(SymbolMixin, ModelSQL, ModelView):
 
     currency = fields.Many2One(string='Currency', select=True,
         required=True, model_name='currency.currency', ondelete='RESTRICT')
-    currency_digits = fields.Integer(string='Digits', required=True)
+    currency_digits = fields.Integer(string='Digits', required=True,
+        domain=[
+            ('currency_digits', '>=', 0),
+            ('currency_digits', '<=', 8)])
 
     wkn = fields.Function(fields.Char(string='NSIN', readonly=True,
         help='National Securities Identifying Number'),
@@ -155,7 +158,7 @@ class Asset(SymbolMixin, ModelSQL, ModelView):
         return super().view_attributes() + [
             ('/tree', 'visual',
                 If(Eval('date', Date()) < Date(delta_days=-5), 'muted',
-                    If(Eval('change_day1', 0) < 0, 'warning',
+                    If(Eval('change_day1', 0) < 0, 'danger',
                         If(Eval('change_day1', 0) > 0, 'success', '')
                     ))
                 ),

tests/test_asset.py

@@ -7,6 +7,7 @@ from trytond.tests.test_tryton import ModuleTestCase, with_transaction
 from trytond.pool import Pool
 from trytond.modules.company.tests import create_company
 from trytond.transaction import Transaction
+from trytond.exceptions import UserError
 from decimal import Decimal
 from datetime import time, date, datetime
 
@@ -75,6 +76,8 @@ class AssetTestCase(ModuleTestCase):
     def test_asset_create(self):
         """ create asset
         """
+        Asset = Pool().get('investment.asset')
+
         company = self.prep_asset_company()
         product = self.prep_asset_product(
             name='Product 1',
@@ -85,6 +88,19 @@ class AssetTestCase(ModuleTestCase):
             product = product)
         self.assertEqual(asset.symbol, 'usd/u')
 
+        # check ranges
+        Asset.write(*[
+            [asset],
+            {
+                'currency_digits': 1,
+            }])
+        self.assertRaisesRegex(UserError,
+            'ss',
+            Asset.write,
+            *[[asset], {
+                'currency_digits': -1,
+            }])
+
     @with_transaction()
     def test_asset_rec_name(self):
         """ create asset