Add basic views for Trainwreck transactions

..but never try to configure them, custom app must do that

tailbone/views/trainwreck.py

@@ -0,0 +1,140 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2017 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option)
+#  any later version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU Affero General Public License
+#  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Trainwreck views
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+import six
+
+from rattail.time import localtime
+
+from tailbone import forms
+from tailbone.db import TrainwreckSession
+from tailbone.views import MasterView
+
+
+class TransactionView(MasterView):
+    """
+    Master view for Trainwreck transactions
+    """
+    Session = TrainwreckSession
+    # model_class = trainwreck.Transaction
+    model_title = "Trainwreck Transaction"
+    model_title_plural = "Trainwreck Transactions"
+    route_prefix = 'trainwreck.transactions'
+    url_prefix = '/trainwreck/transactions'
+    creatable = False
+    editable = False
+    deletable = False
+
+    has_rows = True
+    # model_row_class = trainwreck.TransactionItem
+
+    def _preconfigure_grid(self, g):
+        g.filters['receipt_number'].default_active = True
+        g.filters['receipt_number'].default_verb = 'equal'
+        g.filters['start_time'].default_active = True
+        g.filters['start_time'].default_verb = 'equal'
+        g.filters['start_time'].default_value = six.text_type(localtime(self.rattail_config).date())
+        g.default_sortkey = 'start_time'
+        g.default_sortdir = 'desc'
+
+        g.system.set(renderer=forms.renderers.EnumFieldRenderer(self.enum.TRAINWRECK_SYSTEM))
+        g.terminal_id.set(label="Terminal")
+        g.receipt_number.set(label="Receipt No.")
+        g.customer_id.set(label="Customer ID")
+        g.total.set(renderer=forms.renderers.CurrencyFieldRenderer)
+
+    def configure_grid(self, g):
+        g.configure(
+            include=[
+                g.start_time,
+                g.system,
+                g.terminal_id,
+                g.receipt_number,
+                g.customer_id,
+                g.total,
+            ],
+            readonly=True)
+
+    def _preconfigure_fieldset(self, fs):
+        fs.system.set(renderer=forms.renderers.EnumFieldRenderer(self.enum.TRAINWRECK_SYSTEM))
+        fs.terminal_id.set(label="Terminal")
+        fs.customer_id.set(label="Customer No.")
+        fs.shopper_id.set(label="Shopper No.")
+        fs.subtotal.set(renderer=forms.renderers.CurrencyFieldRenderer)
+        fs.discounted_subtotal.set(renderer=forms.renderers.CurrencyFieldRenderer)
+        fs.tax.set(renderer=forms.renderers.CurrencyFieldRenderer)
+        fs.total.set(renderer=forms.renderers.CurrencyFieldRenderer)
+
+    def configure_fieldset(self, fs):
+        fs.configure(include=[
+            fs.system,
+            fs.terminal_id,
+            fs.receipt_number,
+            fs.start_time,
+            fs.end_time,
+            fs.customer_id,
+            fs.customer_name,
+            fs.shopper_id,
+            fs.shopper_name,
+            fs.subtotal,
+            fs.discounted_subtotal,
+            fs.tax,
+            fs.total,
+            fs.void,
+        ])
+
+    def get_row_data(self, transaction):
+        return self.Session.query(self.model_row_class)\
+                           .filter(self.model_row_class.transaction == transaction)\
+                           .order_by(self.model_row_class.sequence)
+
+    def get_parent(self, item):
+        return item.transaction
+
+    def _preconfigure_row_grid(self, g):
+        g.default_sortkey = 'sequence'
+
+        g.item_id.set(label="Item ID")
+        g.department_number.set(label="Dept. No.")
+        g.unit_quantity.set(renderer=forms.renderers.QuantityFieldRenderer)
+        g.subtotal.set(renderer=forms.renderers.CurrencyFieldRenderer)
+        g.tax.set(renderer=forms.renderers.CurrencyFieldRenderer)
+
+    def configure_row_grid(self, g):
+        g.configure(
+            include=[
+                g.sequence,
+                g.item_type,
+                g.item_id,
+                g.department_number,
+                g.description,
+                g.unit_quantity,
+                g.subtotal,
+                g.tax,
+                g.void,
+            ],
+            readonly=True)