ADD contract_discount module

contract_discount/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
+
+=================
+Contract Discount
+=================
+
+This module was written to extend the functionality of contracts to support set a discount on contract invoice lines.
+
+Configuration
+=============
+
+To configure this module, you need to go to settings -> Configuration -> Sales and activate "Allow setting a discount on the sales order lines" to see discount in contracts.
+
+Usage
+=====
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+   :alt: Try me on Runbot
+   :target: https://runbot.odoo-community.org/runbot/contract/8.0
+
+.. repo_id is available in https://github.com/OCA/maintainer-tools/blob/master/tools/repos_with_ids.txt
+.. branch is "8.0" for example
+
+For further information, please visit:
+
+* https://www.odoo.com/forum/help-1
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/contract/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed feedback
+`here <https://github.com/OCA/contract/issues/new?body=module:%20contract_discount%0Aversion:%208.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Credits
+=======
+
+Contributors
+------------
+
+* Angel Moya <angel.moya@domatix.com>
+
+
+Maintainer
+----------
+
+.. image:: http://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: http://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose mission is to support the collaborative development of Odoo features and promote its widespread use.
+
+To contribute to this module, please visit http://odoo-community.org.

contract_discount/__init__.py

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+# -*- coding: utf-8 -*-
+from . import models
+from . import tests

contract_discount/__openerp__.py

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+# -*- coding: utf-8 -*-
+
+###############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2015 Domatix (<www.domatix.com>).
+#
+#    This program 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.
+#
+#    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+###############################################################################
+
+{
+    'name': 'Contract Discount',
+    'summary': 'Discounts for contracts and their invoices',
+    'version': '8.0.1.0.0',
+    'author': 'Domatix, Odoo Community Association (OCA)',
+    'website': 'http://www.domatix.com',
+    'depends': ['account_analytic_analysis'],
+    'category': 'Sales Management',
+    'license': 'AGPL-3',
+    'data': [
+        'views/contract_view.xml',
+    ],
+    'test': ['test/contract_discount.yml'],
+    'installable': True,
+    'auto_install': False,
+}

contract_discount/i18n/contract_discount.pot

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#	* contract_discount
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 8.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2015-09-16 15:14+0000\n"
+"PO-Revision-Date: 2015-09-16 15:14+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: contract_discount
+#: model:ir.model,name:contract_discount.model_account_analytic_account
+msgid "Analytic Account"
+msgstr ""
+
+#. module: contract_discount
+#: field:account.analytic.invoice.line,discount:0
+msgid "Discount (%)"
+msgstr ""
+
+#. module: contract_discount
+#: code:addons/contract_discount/models/contract.py:40
+#, python-format
+msgid "Discount should be less or equal to 100"
+msgstr ""
+
+#. module: contract_discount
+#: help:account.analytic.invoice.line,discount:0
+msgid "Discount that is applied in generated invoices. It should be less or equal to 100"
+msgstr ""
+

contract_discount/i18n/es.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* contract_discount
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 8.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2015-09-16 15:14+0000\n"
+"PO-Revision-Date: 2015-09-16 17:15+0100\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: \n"
+"Language: es\n"
+"X-Generator: Poedit 1.7.5\n"
+
+#. module: contract_discount
+#: model:ir.model,name:contract_discount.model_account_analytic_account
+msgid "Analytic Account"
+msgstr "Cuenta analítica"
+
+#. module: contract_discount
+#: field:account.analytic.invoice.line,discount:0
+msgid "Discount (%)"
+msgstr "Descuento (%)"
+
+#. module: contract_discount
+#: code:addons/contract_discount/models/contract.py:40
+#, python-format
+msgid "Discount should be less or equal to 100"
+msgstr "El descuento debe ser menor o igual que 100"
+
+#. module: contract_discount
+#: help:account.analytic.invoice.line,discount:0
+msgid "Discount that is applied in generated invoices. It should be less or equal to 100"
+msgstr "El descuento se aplica en las facturas generadas. Debe ser menor o igual que 100"

contract_discount/models/__init__.py

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+# -*- coding: utf-8 -*-
+from . import contract

contract_discount/models/contract.py

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+# -*- coding: utf-8 -*-
+from openerp import models, fields, api
+from openerp.addons.decimal_precision import decimal_precision as dp
+from openerp.exceptions import ValidationError
+
+from openerp.tools.translate import _
+
+from openerp.osv import fields as old_fields
+
+
+class AccountAnalyticInvoiceLine(models.Model):
+    _inherit = "account.analytic.invoice.line"
+
+    def _amount_line(self, cr, uid, ids, prop, unknow_none, unknow_dict,
+                     context=None):
+        res = super(AccountAnalyticInvoiceLine, self)._amount_line(
+            cr, uid, ids, prop, unknow_none, unknow_dict, context=context)
+        for line in self.browse(cr, uid, ids, context=context):
+            discount = (line.discount or 0) / 100
+            res[line.id] = res[line.id] * (1 - discount)
+        return res
+
+    discount = fields.Float(
+        string='Discount (%)',
+        digits=dp.get_precision('Discount'),
+        copy=True,
+        help='Discount that is applied in generated invoices.'
+        ' It should be less or equal to 100')
+
+    _columns = {
+        'price_subtotal': old_fields.function(
+            _amount_line, string='Sub Total',
+            type="float",
+            digits_compute=dp.get_precision('Account')),
+    }
+
+    @api.one
+    @api.constrains('discount')
+    def _check_discount(self):
+        if self.discount > 100:
+            raise ValidationError(_("Discount should be less or equal to 100"))
+
+
+class AccountAnalyticAccount(models.Model):
+    _inherit = 'account.analytic.account'
+
+    @api.model
+    def _prepare_invoice_line(self, line, fiscal_position):
+        res = super(AccountAnalyticAccount, self)._prepare_invoice_line(
+            line, fiscal_position)
+        res['discount'] = line.discount or 0
+        return res

contract_discount/test/contract_discount.yml

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+-
+  In order to test Contract Recurrent Invoice I create a new Contract with 25% discount
+-
+  !record {model: account.analytic.account, id: contract_main_25}:
+    name: Maintenance of Servers
+    company_id: base.main_company
+    partner_id: base.main_partner
+    type: contract
+    recurring_invoices : 1
+    recurring_interval : 1
+    recurring_invoice_line_ids:
+      - quantity: 2.0
+        price_unit: 100.0
+        discount: 25.0
+        name: Database Administration 25
+        product_id: product.product_product_consultant
+        uom_id: product.product_uom_hour
+      - quantity: 2.0
+        price_unit: 100.0
+        discount: 50.0
+        name: Database Administration 50
+        product_id: product.product_product_consultant
+        uom_id: product.product_uom_hour
+-
+  I test the contract
+-
+  !python {model: account.analytic.account}: |
+    aid = ref('contract_discount.contract_main_25')
+    contract = self.browse(cr, uid, aid,context=context)
+    assert contract.recurring_invoice_line_ids[0].discount == 25, "The line discount (%s)is different than 25!"%(contract.recurring_invoice_line_ids[0].discount,)
+    assert contract.recurring_invoice_line_ids[0].price_subtotal == 150.0, "The price subtotal (%s)is different than 150!"%(contract.recurring_invoice_line_ids[0].price_subtotal,)
+    assert contract.recurring_invoice_line_ids[1].discount == 50, "The line discount (%s)is different than 50!"%(contract.recurring_invoice_line_ids[1].discount,)
+    assert contract.recurring_invoice_line_ids[1].price_subtotal == 100, "The price subtotal (%s)is different than 100!"%(contract.recurring_invoice_line_ids[1].price_subtotal,)
+-
+  I generate all invoices from contracts having recurring invoicing
+-
+  !python {model: account.analytic.account}: |
+    self.recurring_create_invoice(cr, uid, [])
+-
+  I test the generated invoice
+-
+  !python {model: account.invoice}: |
+    aid = ref('contract_discount.contract_main_25')
+    ids = self.search(cr, uid, [('invoice_line.account_analytic_id','=',aid)], context=context)
+    assert len(ids)>=1, 'No invoice created for the contract'
+    for invoice in self.browse(cr, uid, ids,context=context):
+        assert invoice.invoice_line[0].discount == 25, "The invoice discount (%s)is different than 25!"%(invoice.invoice_line[0].discount,)
+        assert invoice.invoice_line[1].discount == 50, "The invoice discount (%s)is different than 50!"%(invoice.invoice_line[1].discount,)
+        assert invoice.amount_untaxed == 250.0, "The invoice total (%s)is different than 250!"%(invoice.amount_untaxed,)

contract_discount/tests/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import test_contract_discount

contract_discount/tests/test_contract_discount.py

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+# -*- coding: utf-8 -*-
+
+import openerp.tests.common as common
+from openerp.exceptions import ValidationError
+
+
+def create_simple_contract(self, discount=0):
+
+    partner_id = self.ref('base.res_partner_2')
+    product_id = self.ref('product.product_product_consultant')
+    uom_id = self.ref('product.product_uom_hour')
+
+    line_values = [(0, 0, {'quantity': 2.0,
+                           'price_unit': 100.0,
+                           'discount': discount,
+                           'name': 'Database Administration 25',
+                           'product_id': product_id,
+                           'uom_id': uom_id,
+                           })]
+    values = {
+        'name': 'Maintenance of Servers',
+        'partner_id': partner_id,
+        'type': 'contract',
+        'recurring_invoices': 1,
+        'recurring_interval': 1,
+        'recurring_invoice_line_ids': line_values,
+    }
+
+    return self.env['account.analytic.account']\
+        .create(values)
+
+
+class TestContractDiscount(common.TransactionCase):
+
+    def setUp(self):
+        super(TestContractDiscount, self).setUp()
+
+    def test_create_simple_contract_without_discount(self):
+        """Create contract without discount"""
+        create_simple_contract(self)
+
+    def test_create_simple_contract_with_discount(self):
+        """Create contract with discount"""
+        create_simple_contract(self, 50)
+        create_simple_contract(self, 100)
+
+    def test_create_simple_contract_with_negative_discount(self):
+        """Create contract with negative discount"""
+        create_simple_contract(self, -10)
+
+    def test_discount_greater_than_100_error(self):
+        """Create or write contract with greater than 100 discount"""
+        contract = create_simple_contract(self)
+        lines = contract.recurring_invoice_line_ids
+        with self.assertRaises(ValidationError):
+            lines.write({'discount': 110})
+
+        with self.assertRaises(ValidationError):
+            create_simple_contract(self, 150)

contract_discount/views/contract_view.xml

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+<?xml version="1.0"?>
+<openerp>
+    <data>
+
+        <record id="account_analytic_account_form_extension_form" model="ir.ui.view">
+            <field name="name">account.analytic.account.invoice.form.extension.form
+            </field>
+            <field name="model">account.analytic.account</field>
+            <field name="inherit_id"
+                ref="account_analytic_analysis.account_analytic_account_form_form" />
+            <field name="arch" type="xml">
+                <xpath expr="//field[@name='price_unit']" position="after">
+                    <field name="discount" groups="sale.group_discount_per_so_line" />
+                </xpath>
+            </field>
+        </record>
+
+    </data>
+</openerp>