Add entry to show lot quantity

issue5501
review18121002

CHANGELOG

@@ -1,3 +1,5 @@
+* Add entry to show lot quantities
+
 Version 4.0.0 - 2016-05-02
 * Bug fixes (see mercurial logs for details)
 * Add Python3 support

__init__.py

@@ -9,6 +9,7 @@ from .product import *
 def register():
     Pool.register(
         Lot,
+        LotByLocationContext,
         LotType,
         Move,
         ShipmentIn,

stock.py

@@ -1,5 +1,7 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
+import datetime
+
 from trytond.model import ModelView, ModelSQL, fields
 from trytond.pyson import Eval
 from trytond.pool import Pool, PoolMeta
@@ -7,9 +9,9 @@ from trytond.transaction import Transaction
 from trytond.modules.stock import StockMixin
 
 __all__ = ['Lot', 'LotType', 'Move', 'ShipmentIn', 'ShipmentOut',
-    'ShipmentOutReturn',
+    'LotByLocationContext', 'ShipmentOutReturn',
     'Period', 'PeriodCacheLot',
-    'Inventory', 'InventoryLine']
+    'Inventory', 'InventoryLine', 'LotByLocationContext']
 
 
 class Lot(ModelSQL, ModelView, StockMixin):
@@ -37,6 +39,29 @@ class Lot(ModelSQL, ModelView, StockMixin):
             grouping=('product', 'lot'))
 
 
+class LotByLocationContext(ModelView):
+    'Lot by Location'
+    __name__ = 'stock.lots_by_location.context'
+    forecast_date = fields.Date(
+        'At Date', help=('Allow to compute expected '
+            'stock quantities for this date.\n'
+            '* An empty value is an infinite date in the future.\n'
+            '* A date in the past will provide historical values.'))
+    stock_date_end = fields.Function(fields.Date('At Date'),
+        'on_change_with_stock_date_end')
+
+    @staticmethod
+    def default_forecast_date():
+        Date = Pool().get('ir.date')
+        return Date.today()
+
+    @fields.depends('forecast_date')
+    def on_change_with_stock_date_end(self, name=None):
+        if self.forecast_date is None:
+            return datetime.datetime.max
+        return self.forecast_date
+
+
 class LotType(ModelSQL, ModelView):
     "Stock Lot Type"
     __name__ = 'stock.lot.type'

stock.xml

@@ -14,6 +14,12 @@ this repository contains the full copyright notices and license terms. -->
             <field name="type">tree</field>
             <field name="name">lot_tree</field>
         </record>
+        <record model="ir.ui.view" id="lot_quantity_view_tree">
+            <field name="model">stock.lot</field>
+            <field name="type">tree</field>
+            <field name="priority" eval="20"/>
+            <field name="name">lot_quantity_tree</field>
+        </record>
 
         <record model="ir.action.act_window" id="act_lot_form">
             <field name="name">Lots</field>
@@ -48,6 +54,41 @@ this repository contains the full copyright notices and license terms. -->
             <field name="perm_delete" eval="True"/>
         </record>
 
+        <record model="ir.ui.view" id="lots_by_location_context_view_form">
+            <field name="model">stock.lots_by_location.context</field>
+            <field name="type">form</field>
+            <field name="name">lot_by_location_context_form</field>
+        </record>
+
+        <record model="ir.action.act_window" id="act_lots_by_locations">
+            <field name="name">Lot</field>
+            <field name="res_model">stock.lot</field>
+            <field name="context" eval="{'locations': Eval('active_ids')}"
+                pyson="1"/>
+            <field name="domain"
+                eval="['OR', ('quantity', '!=', 0.0), ('forecast_quantity', '!=', 0.0)]"
+                pyson="1"/>
+            <field name="context_model">stock.lots_by_location.context</field>
+        </record>
+        <record model="ir.action.act_window.view"
+                id="act_lots_by_locations_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="lot_quantity_view_tree"/>
+            <field name="act_window" ref="act_lots_by_locations"/>
+        </record>
+        <record model="ir.action.act_window.view"
+                id="act_lots_by_locations_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="lot_view_form"/>
+            <field name="act_window" ref="act_lots_by_locations"/>
+        </record>
+        <record model="ir.action.keyword"
+                id="act_products_by_locations_keyword2">
+            <field name="keyword">form_relate</field>
+            <field name="model">stock.location,-1</field>
+            <field name="action" ref="act_lots_by_locations"/>
+        </record>
+
         <record model="ir.action.act_window" id="act_move_form_relate_lot">
             <field name="name">Moves</field>
             <field name="res_model">stock.move</field>

view/lot_by_location_context_form.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<form string="Lot by Location">
+    <label name="forecast_date"/>
+    <field name="forecast_date"/>
+    <field name="stock_date_end" invisible="1" colspan="4"/>
+</form>

view/lot_quantity_tree.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree string="Lots">
+    <field name="number"/>
+    <field name="product"/>
+    <field name="quantity"/>
+    <field name="forecast_quantity"/>
+</tree>