first commit

modules/product_price_list_dates/__init__.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.

modules/product_price_list_dates/locale/bg.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/ca.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Data final"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Data inicial"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Data"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Data"

modules/product_price_list_dates/locale/cs.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/de.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Enddatum"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Startdatum"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Datum"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Datum"

modules/product_price_list_dates/locale/es.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Fecha fin"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Fecha inicial"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Fecha"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Fecha"

modules/product_price_list_dates/locale/es_419.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/et.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Lõppkuupäev"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Alguskuupäev"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Kuupäev"
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Kuupäev"

modules/product_price_list_dates/locale/fa.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "تاریخ پایان"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "تاریخ شروع"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "تاریخ"
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "تاریخ"

modules/product_price_list_dates/locale/fi.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/fr.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Date de fin"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Date de début"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Date"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Date"

modules/product_price_list_dates/locale/hu.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/id.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Tanggal Akhir"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Tanggal Awal"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Tanggal"
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Tanggal"

modules/product_price_list_dates/locale/it.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Data fine"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Data inizio"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Data"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Data"

modules/product_price_list_dates/locale/lo.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "ວັນທີສິ້ນສຸດ"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "ວັນທີເລີ່ມ"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "ວັນທີ"
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "ວັນທີ"

modules/product_price_list_dates/locale/lt.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Pabaigos data"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Pradžios data"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Pabaigos data"

modules/product_price_list_dates/locale/nl.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Eind datum"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Start datum"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Datum"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Datum"

modules/product_price_list_dates/locale/pl.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Data ukończenia"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Data rozpoczęcia"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Data"
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Data"

modules/product_price_list_dates/locale/pt.po

@@ -0,0 +1,19 @@
+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Data Final"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Data de Início"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Data"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Data"

modules/product_price_list_dates/locale/ro.po

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+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Data de încheiere"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Data de început"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Data"
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Data"

modules/product_price_list_dates/locale/ru.po

@@ -0,0 +1,19 @@
+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/sl.po

@@ -0,0 +1,20 @@
+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr "Konec veljavnosti"
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr "Pričetek veljavnosti"
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr "Datum"
+
+#, fuzzy
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr "Datum"

modules/product_price_list_dates/locale/tr.po

@@ -0,0 +1,19 @@
+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/uk.po

@@ -0,0 +1,19 @@
+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/locale/zh_CN.po

@@ -0,0 +1,19 @@
+#
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.price_list.line,end_date:"
+msgid "End Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line,start_date:"
+msgid "Start Date"
+msgstr ""
+
+msgctxt "field:product.price_list.line.context,date:"
+msgid "Date"
+msgstr ""
+
+msgctxt "field:product.sale.context,date:"
+msgid "Date"
+msgstr ""

modules/product_price_list_dates/product.py

@@ -0,0 +1,131 @@
+# 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 as dt
+
+import trytond.config as config
+from trytond.model import ModelView, fields
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Date, Eval, If, PYSONDecoder, PYSONEncoder
+from trytond.transaction import Transaction
+
+
+class PriceList(metaclass=PoolMeta):
+    __name__ = 'product.price_list'
+
+    @classmethod
+    @ModelView.button_action(
+        'product_price_list.act_price_list_line_form')
+    def open_lines(cls, price_lists):
+        encoder = PYSONEncoder()
+        decoder = PYSONDecoder(noeval=True)
+        action = super().open_lines(price_lists)
+        context_domain = [
+            ['OR',
+                ('start_date', '=', None),
+                ('start_date', '<=', Eval('date', Date())),
+                ],
+            ['OR',
+                ('end_date', '=', None),
+                ('end_date', '>=', Eval('date', Date())),
+                ],
+            ]
+        if isinstance(action, dict):
+            if action.get('context_domain'):
+                context_domain = [
+                    decoder.decode(action['context_domain']),
+                    context_domain]
+            action['context_domain'] = encoder.encode(context_domain)
+        else:
+            action = {
+                'context_domain': encoder.encode(context_domain),
+                }
+        return action
+
+    def compute(self, product, quantity, uom, pattern=None):
+        context = Transaction().context
+        pattern = pattern.copy() if pattern is not None else {}
+        pattern.setdefault('date', context.get('date'))
+        return super().compute(product, quantity, uom, pattern=pattern)
+
+
+class PriceListCache(metaclass=PoolMeta):
+    __name__ = 'product.price_list.cache'
+
+    @classmethod
+    def patterns(cls, price_list, product):
+        pool = Pool()
+        Date = pool.get('ir.date')
+        today = Date.today()
+        for pattern in super().patterns(price_list, product):
+            if pattern is None:
+                pattern = {}
+            for days in range(config.getint(
+                        'product_price_list_dates', 'cache_days', default=2)):
+                pattern['date'] = today + dt.timedelta(days=days)
+                yield pattern
+
+    @classmethod
+    def get(cls, price_list, product, pattern=None):
+        pool = Pool()
+        Date = pool.get('ir.date')
+        context = Transaction().context
+        today = Date.today()
+        pattern = pattern.copy() if pattern else {}
+        pattern['date'] = pattern.get('date', context.get('date')) or today
+        return super().get(price_list, product, pattern=pattern)
+
+
+class PriceListLine(metaclass=PoolMeta):
+    __name__ = 'product.price_list.line'
+
+    start_date = fields.Date(
+        "Start Date",
+        domain=[
+            If(Eval('start_date') & Eval('end_date'),
+                ('start_date', '<=', Eval('end_date')),
+                ()),
+            ])
+    end_date = fields.Date(
+        "End Date",
+        domain=[
+            If(Eval('start_date') & Eval('end_date'),
+                ('end_date', '>=', Eval('start_date')),
+                ()),
+            ])
+
+    def match(self, pattern):
+        pool = Pool()
+        Date = pool.get('ir.date')
+
+        pattern = pattern.copy()
+        date = pattern.pop('date', None) or Date.today()
+        if self.start_date and self.start_date > date:
+            return False
+        if self.end_date and self.end_date < date:
+            return False
+        return super().match(pattern)
+
+
+class PriceListLineContext(metaclass=PoolMeta):
+    __name__ = 'product.price_list.line.context'
+
+    date = fields.Date("Date")
+
+    @classmethod
+    def default_date(cls):
+        pool = Pool()
+        Date = pool.get('ir.date')
+        return Date.today()
+
+
+class SaleContext(metaclass=PoolMeta):
+    __name__ = 'product.sale.context'
+
+    date = fields.Function(
+        fields.Date("Date"),
+        'on_change_with_date')
+
+    @fields.depends('sale_date')
+    def on_change_with_date(self, name=None):
+        return self.sale_date

modules/product_price_list_dates/product.xml

@@ -0,0 +1,43 @@
+<?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. -->
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="price_list_line_view_form">
+            <field name="model">product.price_list.line</field>
+            <field name="inherit"
+                ref="product_price_list.price_list_line_view_form"/>
+            <field name="name">price_list_line_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="price_list_line_view_tree">
+            <field name="model">product.price_list.line</field>
+            <field name="inherit"
+                ref="product_price_list.price_list_line_view_tree"/>
+            <field name="name">price_list_line_tree</field>
+        </record>
+
+        <record model="ir.ui.view" id="price_list_line_view_tree_sequence">
+            <field name="model">product.price_list.line</field>
+            <field name="inherit"
+                ref="product_price_list.price_list_line_view_tree_sequence"/>
+            <field name="name">price_list_line_tree_sequence</field>
+        </record>
+
+        <record model="ir.ui.view" id="price_list_line_context_view_form">
+            <field name="model">product.price_list.line.context</field>
+            <!-- Migration from 7.2: Force empty type for inherit -->
+            <field name="type" eval="None"/>
+            <field name="inherit" ref="product_price_list.price_list_line_context_view_form"/>
+            <field name="name">price_list_line_context_form</field>
+        </record>
+    </data>
+
+    <data depends="sale_price_list">
+        <record model="ir.ui.view" id="product_sale_context_view_form">
+            <field name="model">product.sale.context</field>
+            <field name="inherit" ref="sale.product_sale_context_view_form"/>
+            <field name="name">product_sale_context_form</field>
+        </record>
+    </data>
+</tryton>

modules/product_price_list_dates/purchase.py

@@ -0,0 +1,22 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.model import fields
+from trytond.pool import PoolMeta
+from trytond.pyson import Eval
+
+
+class Line(metaclass=PoolMeta):
+    __name__ = 'purchase.line'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.product.search_context['date'] = Eval(
+            '_parent_purchase', {}).get('purchase_date')
+
+    @fields.depends('purchase', '_parent_purchase.purchase_date')
+    def _get_context_purchase_price(self):
+        context = super()._get_context_purchase_price()
+        if self.purchase:
+            context.setdefault('date', self.purchase.purchase_date)
+        return context

modules/product_price_list_dates/sale.py

@@ -0,0 +1,22 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.model import fields
+from trytond.pool import PoolMeta
+from trytond.pyson import Eval
+
+
+class Line(metaclass=PoolMeta):
+    __name__ = 'sale.line'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.product.search_context['date'] = Eval(
+            '_parent_sale', {}).get('sale_date')
+
+    @fields.depends('sale', '_parent_sale.sale_date')
+    def _get_context_sale_price(self):
+        context = super()._get_context_sale_price()
+        if self.sale:
+            context.setdefault('date', self.sale.sale_date)
+        return context

modules/product_price_list_dates/tests/__init__.py

@@ -0,0 +1,2 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.

modules/product_price_list_dates/tests/test_module.py

@@ -0,0 +1,153 @@
+# 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 decimal import Decimal
+
+from trytond.modules.company.tests import (
+    CompanyTestMixin, create_company, set_company)
+from trytond.pool import Pool
+from trytond.tests.test_tryton import ModuleTestCase, with_transaction
+from trytond.transaction import Transaction
+
+
+class ProductPriceListDatesTestCase(CompanyTestMixin, ModuleTestCase):
+    'Test Product Price List Dates module'
+    module = 'product_price_list_dates'
+    extras = [
+        'product_price_list_cache', 'sale_price_list', 'purchase_price_list']
+
+    def create_price_list(self, field, date):
+        pool = Pool()
+        PriceList = pool.get('product.price_list')
+
+        price_list, = PriceList.create([{
+                    'name': "Price List",
+                    'price': 'list_price',
+                    'lines': [('create', [{
+                                    field: date,
+                                    'formula': 'unit_price * 0.9',
+                                    }, {
+                                    'formula': 'unit_price',
+                                    }])],
+                    }])
+        return price_list
+
+    def create_product(self, list_price=Decimal(10)):
+        pool = Pool()
+        Product = pool.get('product.product')
+        Template = pool.get('product.template')
+        Uom = pool.get('product.uom')
+
+        unit, = Uom.search([('name', '=', "Unit")])
+        template = Template(
+            name="Template", list_price=list_price, default_uom=unit)
+        template.save()
+        product = Product(template=template)
+        product.save()
+        return product
+
+    @with_transaction()
+    def test_price_list_start_date(self):
+        "Test price list with start date"
+        pool = Pool()
+        Date = pool.get('ir.date')
+
+        today = Date.today()
+        tomorrow = today + datetime.timedelta(days=1)
+
+        company = create_company()
+        with set_company(company):
+            product = self.create_product()
+            uom = product.default_uom
+            price_list = self.create_price_list('start_date', tomorrow)
+
+            self.assertEqual(
+                price_list.compute(
+                    product, 1, uom, pattern={'date': today}),
+                Decimal(10))
+            self.assertEqual(
+                price_list.compute(
+                    product, 1, uom, pattern={'date': tomorrow}),
+                Decimal(9))
+
+    @with_transaction()
+    def test_price_list_end_date(self):
+        "Test price list with end date"
+        pool = Pool()
+        Date = pool.get('ir.date')
+
+        today = Date.today()
+        yesterday = today - datetime.timedelta(days=1)
+
+        company = create_company()
+        with set_company(company):
+            product = self.create_product()
+            uom = product.default_uom
+            price_list = self.create_price_list('end_date', yesterday)
+
+            self.assertEqual(
+                price_list.compute(
+                    product, 1, uom, pattern={'date': today}),
+                Decimal(10))
+            self.assertEqual(
+                price_list.compute(
+                    product, 1, uom, pattern={'date': yesterday}),
+                Decimal(9))
+
+    @with_transaction()
+    def test_price_list_with_context_date(self):
+        "Test price list with context date"
+        pool = Pool()
+        Date = pool.get('ir.date')
+
+        today = Date.today()
+        tomorrow = today + datetime.timedelta(days=1)
+
+        company = create_company()
+        with set_company(company):
+            product = self.create_product()
+            uom = product.default_uom
+            price_list = self.create_price_list('start_date', tomorrow)
+
+            with Transaction().set_context(date=today):
+                self.assertEqual(
+                    price_list.compute(product, 1, uom),
+                    Decimal(10))
+            with Transaction().set_context(date=tomorrow):
+                self.assertEqual(
+                    price_list.compute(product, 1, uom),
+                    Decimal(9))
+
+    @with_transaction()
+    def test_price_list_cache(self):
+        "Test price list cache"
+        pool = Pool()
+        Cache = pool.get('product.price_list.cache')
+        Date = pool.get('ir.date')
+
+        today = Date.today()
+        tomorrow = today + datetime.timedelta(days=1)
+
+        company = create_company()
+        with set_company(company):
+            product = self.create_product()
+            uom = product.default_uom
+            price_list = self.create_price_list('start_date', tomorrow)
+
+            price_list.fill_cache()
+
+            caches = Cache.search([])
+            self.assertEqual(len(caches), 2)
+
+            for date, result in [
+                    (today, Decimal(10)),
+                    (tomorrow, Decimal(9)),
+                    ]:
+                with self.subTest(date=date):
+                    with Transaction().set_context(date=date):
+                        cache = Cache.get(price_list, product)
+                        self.assertEqual(cache.get_unit_price(1, uom), result)
+
+
+del ModuleTestCase

modules/product_price_list_dates/tryton.cfg

@@ -0,0 +1,30 @@
+[tryton]
+version=7.8.0
+depends:
+    ir
+    product_price_list
+extras_depend:
+    product_price_list_cache
+    purchase_price_list
+    sale_price_list
+xml:
+    product.xml
+
+[register]
+model:
+    product.PriceList
+    product.PriceListLine
+    product.PriceListLineContext
+
+[register product_price_list_cache]
+model:
+    product.PriceListCache
+
+[register purchase_price_list]
+model:
+    purchase.Line
+
+[register sale_price_list]
+model:
+    sale.Line
+    product.SaleContext

modules/product_price_list_dates/view/price_list_line_context_form.xml

@@ -0,0 +1,11 @@
+<?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. -->
+<data>
+    <xpath expr="/form" position="inside">
+        <newline/>
+        <label name="date"/>
+        <field name="date"/>
+        <newline/>
+    </xpath>
+</data>

modules/product_price_list_dates/view/price_list_line_form.xml

@@ -0,0 +1,13 @@
+<?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. -->
+<data>
+    <xpath expr="/form/field[@name='sequence']" position="after">
+        <label name="start_date"/>
+        <group id="start_end_date" col="3">
+            <field name="start_date"/>
+            <label name="end_date"/>
+            <field name="end_date"/>
+        </group>
+    </xpath>
+</data>

modules/product_price_list_dates/view/price_list_line_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. -->
+<data>
+    <xpath expr="/tree/field[@name='sequence']" position="after">
+        <field name="start_date"/>
+        <field name="end_date"/>
+    </xpath>
+</data>

modules/product_price_list_dates/view/price_list_line_tree_sequence.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. -->
+<data>
+    <xpath expr="/tree/field[@name='category']" position="before">
+        <field name="start_date"/>
+        <field name="end_date"/>
+    </xpath>
+</data>

modules/product_price_list_dates/view/product_sale_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. -->
+<data>
+    <xpath expr="/form" position="inside">
+        <field name="date" invisible="1" colspan="4"/>
+    </xpath>
+</data>