add option pay multiples sales

__init__.py

@@ -42,6 +42,7 @@ def register():
         sale.SaleMonthByShopStart,
         sale.MultiplePaymentSaleStart,
         sale.SelectMultiplePaymentSale,
+        sale.SelectSalesAsk,
         # goal.SaleIndicator,
         # goal.SaleGoalLine,
         module='sale_shop', type_='model')
@@ -55,6 +56,7 @@ def register():
         sale.SaleMonthByShop,
         sale.WizardSalePayment,
         sale.MultiplePaymentSale,
+        # sale.SelectLines,
         module='sale_shop', type_='wizard')
     Pool.register(
         sale.SaleBySupplier,

sale.py

@@ -5,6 +5,7 @@ import logging
 from decimal import Decimal
 from datetime import date, timedelta
 import calendar
+from soupsieve import select
 from sql.aggregate import Sum
 from sql.functions import Extract
 from sql.conditionals import Case
@@ -1211,7 +1212,7 @@ class MultiplePaymentSaleStart(ModelView):
 
     statement = fields.Many2One('account.statement', 'Statement',
        required=True, domain=[('state', '=', 'draft')])
-    party = fields.Many2One('party.party', 'Party')
+    party = fields.Many2One('party.party', 'Party', required=True)
     amount = fields.Numeric('Amount', digits=(16, 2))
     sales = fields.One2Many('select_multiple_payment_sale', 'line', 'Sales',
         context={'party': Eval('party')})
@@ -1227,12 +1228,25 @@ class MultiplePaymentSaleStart(ModelView):
     @staticmethod
     def default_company():
         return Transaction().context.get('company')
+        
+    @staticmethod
+    def default_amount():
+        return Decimal(0)
+
+    @staticmethod
+    def default_balance():
+        return Decimal(0)
     
     @fields.depends('sales','amount')
     def on_change_sales(self):
         if self.amount:
             self.balance = self.amount - sum(s.amount_to_pay for s in self.sales if s.amount_to_pay)
 
+    @fields.depends('sales','amount')
+    def on_change_amount(self):
+        if self.amount and self.sales:
+            self.balance = self.amount - sum(s.amount_to_pay for s in self.sales if s.amount_to_pay)
+
 
 class SelectMultiplePaymentSale(ModelView):   
     'Select Multiple Payment Sale'
@@ -1248,7 +1262,7 @@ class SelectMultiplePaymentSale(ModelView):
         help="Amount to pay must be less than balance")
     party = fields.Many2One('party.party', 'Party')
     company = fields.Many2One('company.company', 'Company', readonly=True)
-    
+
     @staticmethod
     def default_line():
         return 1
@@ -1266,11 +1280,11 @@ class SelectMultiplePaymentSale(ModelView):
         if self.sale:
             residual = self.sale.residual_amount
             self.residual_amount = residual
-            self.amount_to_pay = residual if self.line.balance > residual else self.line.balance
+            self.amount_to_pay = residual
         else:
             self.residual_amount = None
             self.amount_to_pay = None
-            
+
     @fields.depends('amount_to_pay','line', 'residual_amount')      
     def on_change_amount_to_pay(self):
         if self.amount_to_pay > self.line.balance or self.amount_to_pay > self.residual_amount:
@@ -1284,8 +1298,43 @@ class MultiplePaymentSale(Wizard):
         'sale_shop.multiple_payment_sale_view_form', [
             Button('Cancel', 'end', 'tryton-cancel'),
             Button('Create Moves', 'create_moves', 'tryton-ok', default=True),
+            Button('Select Sales', 'sales_data_default'),
             ])
+    sales_data_default = StateTransition()
+
+    select_sales_ask = StateView('sale.shop.select_sales.ask',
+        'sale_shop.select_sales_ask_view_form', [
+            Button('Add', 'add_sales', 'tryton-ok', default=True),
+        ])
+
     create_moves= StateTransition() 
+    add_sales = StateTransition()
+
+    def transition_sales_data_default(self):
+        Start = self.start
+        pool = Pool()
+        Select = pool.get('sale.shop.select_sales.ask')
+        sale_domain = [
+            ('state', 'in', ['confirmed', 'processing']),
+            ('party', '=', Start.party.id),
+        ]
+        Select.sales.domain = sale_domain
+        return 'select_sales_ask'
+
+    def default_select_sales_ask(self, fields):
+        return {
+            'party': self.start.party.id,
+            'statement': self.start.statement.id }
+
+    def default_start(self, fields):
+        default = {}
+        if hasattr(self.select_sales_ask, 'party'):
+            default.update({'party': self.select_sales_ask.party.id})
+        if hasattr(self.select_sales_ask, 'statement'):
+            default.update({'statement': self.select_sales_ask.statement.id})
+        if hasattr(self.select_sales_ask, 'sales'):
+            default.update({'sales': [{'sale': s.id, 'party': self.select_sales_ask.party.id} for s in self.select_sales_ask.sales]})
+        return default
     
     def transition_create_moves(self):
         pool = Pool()
@@ -1306,7 +1355,17 @@ class MultiplePaymentSale(Wizard):
                     number=line.sale.number,
                 )
             st_line.save()
-            st_line.create_move()
-        return 'end'         
+            # st_line.create_move()
+        return 'end'
+
+    def transition_add_sales(self):
+        return 'start'   
         
 
+class SelectSalesAsk(ModelView):
+    'Select Sales Ask'
+    __name__ = 'sale.shop.select_sales.ask'
+    sales = fields.Many2Many('sale.sale', None, None,
+            'Sales')
+    party = fields.Many2One('party.party', 'Party', readonly=True, states={'invisible': True})
+    statement = fields.Many2One('account.statement', 'Statement', readonly=True, states={'invisible': True})

sale.xml

@@ -144,15 +144,23 @@ The COPYRIGHT file at the top level of this repository contains the full copyrig
             <field name="name">Multiple Payment Sale</field>
             <field name="wiz_name">multiple_payment_sale</field>
         </record>
-
         <record model="ir.ui.view" id="select_multiple_payment_sale_view_tree">
             <field name="model">select_multiple_payment_sale</field>
             <field name="type">tree</field>
             <field name="name">select_multiple_payment_sale_tree</field>
         </record>
-
         <menuitem parent="sale.menu_sale" id="menu_multiple_payment_sale"
             sequence="80" action="wizard_multiple_payment_sale"/>
 
+        <record model="ir.ui.view" id="select_sales_ask_view_form">
+            <field name="model">sale.shop.select_sales.ask</field>
+            <field name="type">form</field>
+            <field name="name">select_sales_ask_form</field>
+        </record>
+        <record model="ir.action.wizard" id="wizard_select_sales_ask">
+            <field name="name">Select Sales</field>
+            <field name="wiz_name">sale.shop.select_sales</field>
+        </record>
+
     </data>
 </tryton>

view/multiple_payment_sale_form.xml

@@ -12,6 +12,7 @@ this repository contains the full copyright notices and license terms. -->
   <field name="balance"/>
   <label name="description"/>
   <field name="description" colspan="3"/>
+  <!-- <button name="select_sales_ask123" string="Select Sales"/> -->
   <field name="sales" colspan="4" 
     view_ids="sale_shop.select_multiple_payment_sale_view_tree"/>  
 </form>

view/select_sales_ask_form.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!-- This file is part sale_shop module for Tryton.
+The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms. -->
+<form>
+    <field name="sales" colspan="4"/>
+    <field name="party" />
+    <field name="statement"/>
+</form>