Fix

booking.py

@@ -348,25 +348,20 @@ class Booking(Workflow, ModelSQL, ModelView):
     @classmethod
     def compute_taxes(cls, _taxes, unit_price, quantity, currency=None):
         Tax = Pool().get('account.tax')
-        print("_taxes...", _taxes)
         l_taxes = Tax.compute(list(_taxes), unit_price, quantity)
-        taxes = {}
+        taxes = []
         for tax in l_taxes:
             taxline = TaxableMixin._compute_tax_line(**tax)
             # Base must always be rounded per folio as there will
             # be one tax folio per taxable_lines
             if currency:
                 taxline['base'] = currency.round(taxline['base'])
-            if taxline not in taxes:
-                taxes[taxline] = taxline
-            else:
-                taxes[taxline]['base'] += taxline['base']
-                taxes[taxline]['amount'] += taxline['amount']
+            taxes.append(taxline)
         return taxes
 
     @classmethod
     def _get_taxes(cls, lines):
-        taxes = {}
+        taxes = []
         with Transaction().set_context({}):
             for folio in lines:
                 currency = folio.booking.currency
@@ -374,7 +369,7 @@ class Booking(Workflow, ModelSQL, ModelView):
                     continue
                 _taxes = folio.product.customer_taxes_used
                 if not folio.occupancy and not folio.charges:
-                    taxes.update(cls.compute_taxes(
+                    taxes.extend(cls.compute_taxes(
                         _taxes,
                         folio.unit_price,
                         folio.nights_quantity,
@@ -383,16 +378,23 @@ class Booking(Workflow, ModelSQL, ModelView):
                 else:
                     for occ in folio.occupancy:
                         if not occ.charge:
-                            taxes.update(cls.compute_taxes(
+                            taxes.extend(cls.compute_taxes(
                                 _taxes, occ.unit_price, 1, currency))
 
                     for charge in folio.charges:
-                        taxes.update(cls.compute_taxes(
+                        taxes.extend(cls.compute_taxes(
                             charge.taxes,
                             charge.unit_price,
                             charge.quantity,
                             currency))
-        return taxes
+        _taxes = {}
+        for ctax in taxes:
+            if ctax['tax'] not in _taxes.keys():
+                _taxes[ctax['tax']] = ctax
+            else:
+                _taxes[ctax['tax']]['base'] += ctax['base']
+                _taxes[ctax['tax']]['amount'] += ctax['amount']
+        return _taxes.values()
 
     def get_invoices(self, name=None):
         res = []
@@ -1232,6 +1234,7 @@ class Booking(Workflow, ModelSQL, ModelView):
 
     def get_tax_amount(self, name):
         taxes_computed = Booking._get_taxes(self.lines)
+        print('taxes_computed.....', taxes_computed)
         res = sum([t['amount'] for t in taxes_computed], _ZERO)
         return self.currency.round(res)
 

configuration.py

@@ -77,7 +77,8 @@ class Configuration(ModelSQL, ModelView):
     storage_by_default = fields.Many2One('stock.location', 'Storage By Default',
         domain=[('type', '=', 'storage')], required=False)
     payment_term = fields.Many2One('account.invoice.payment_term',
-        'Payment Term')
+        'Default Payment Term')
+    price_list = fields.Many2One('product.price_list', 'Default Price List')
     children_policies = fields.One2Many('hotel.children_policy',
         'configuration', 'Children Policies')
     nationality = fields.Many2One('country.country', 'Default Nationality')

message.xml

@@ -117,5 +117,8 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.message" id="msg_the_accommodation_not_charged">
             <field name="text">The accommodation is not charged!</field>
         </record>
+        <record model="ir.message" id="msg_missing_default_price_list">
+            <field name="text">Missing default price list!</field>
+        </record>
     </data>
 </tryton>

rate_plan.py

@@ -2,8 +2,9 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.model import ModelView, ModelSQL, fields, Workflow
-# from trytond.pyson import Eval, Bool
-# from trytond.pool import Pool
+from trytond.pool import Pool
+from trytond.exceptions import UserError
+from trytond.i18n import gettext
 
 
 class RatePlanCalendar(ModelSQL, ModelView):
@@ -64,8 +65,9 @@ class RatePlan(Workflow, ModelSQL, ModelView):
     saturday = fields.Char('Saturday', help="Example, -15%")
     sunday = fields.Char('Sunday', help="Example, -15%")
     holiday = fields.Char('Holiday', help="Example, -15%")
-    price_list = fields.Many2One('product.price_list', 'Price List',
-        required=False)
+    price_list = fields.Many2One('product.price_list', 'Default Price List',
+        required=True)
+    # Add children policy
 
     @classmethod
     def __setup__(cls):
@@ -92,16 +94,52 @@ class RatePlan(Workflow, ModelSQL, ModelView):
     def default_active():
         return True
 
-    @staticmethod
-    def best_available_rate(cls, context):
+    @classmethod
+    def best_price_list(cls, args):
         """Get the best available rate for the context
-        arrival_date: Computed
-        departure_date: Computed
-        kind (rate_plan): Required
+        arrival_date: Date
+        departure_date: Date
+        rate_plan: Required
         occupancy_rate for the arrival_date: Computed
         """
-        # rate_plan: Required
-        pass
+        pool = Pool()
+        Calendar = pool.get('hotel.rate_plan.calendar')
+        PriceList = pool.get('product.price_list')
+        Config = pool.get('hotel.configuration')
+        rate_plan_id = args['rate_plan_id']
+        arrival_date = args['arrival_date']
+
+        calendars = Calendar.search([
+            ('start_date', '>=', args['arrival_date']),
+            ('end_date', '<=', arrival_date),
+        ])
+        if calendars:
+            season = calendars[0].season
+        else:
+            season = 'middle'
+
+        rate_plan = cls(rate_plan_id)
+        price_list = None
+        for pl in rate_plan.price_lists:
+            if pl.season == season:
+                price_list = pl
+                break
+
+        if not price_list:
+            config = Config.get_configuration()
+            if config.price_list:
+                price_list = config.price_list
+            else:
+                # This is in deprecation
+                price_list = rate_plan.price_list
+
+
+        if not price_list:
+            raise UserError(gettext('hotel.msg_missing_default_price_list'))
+
+        # Here add compute of price_list with variations of Context
+        # including occupancy_rate and IA
+        return price_list.id
 
 
 class RatePlanPriceList(ModelSQL):

view/configuration_form.xml

@@ -42,6 +42,10 @@ this repository contains the full copyright notices and license terms. -->
     <field name="charge_sequence"/>
     <label name="offset_journal"/>
     <field name="offset_journal"/>
+    <label name="price_list"/>
+    <field name="price_list"/>
+    <label name="token_siat"/>
+    <field name="token_siat"/>
     <group col="6" string="Accounting" id="account" colspan="4">
       <label name="accounting_revenue"/>
       <field name="accounting_revenue"/>
@@ -52,6 +56,4 @@ this repository contains the full copyright notices and license terms. -->
     </group>
     <field name="default_charges" colspan="2"/>
     <field name="children_policies" colspan="2"/>
-    <label name="token_siat"/>
-    <field name="token_siat"/>
 </form>

view/rate_plan_form.xml

@@ -18,6 +18,8 @@ this repository contains the full copyright notices and license terms. -->
     <field name="minimum_advance"/>
     <label name="cancellation_policies"/>
     <field name="cancellation_policies"/>
+    <label name="price_list"/>
+    <field name="price_list"/>
     <group string="Food" col="8" id="food" colspan="4">
       <label name="all_inclusive"/>
       <field name="all_inclusive"/>