Initial commit with currency

__init__.py

@@ -0,0 +1,27 @@
+# Copyright (c) 2007 Cedric Krier.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contact a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+from currency import *
+from account import *

__tryton__.py

@@ -0,0 +1,18 @@
+{
+    'name': 'Account',
+    'version': '0.1',
+    'author': 'B2CK',
+    'email': 'info@b2ck.com',
+    'website': 'http://www.tryton.org/',
+    'category': 'Generic Modules',
+    'description': 'Financial and Accounting Module',
+    'depends': [
+        'ir',
+        'res',
+        'company',
+    ],
+    'xml': [
+        'account.xml',
+        'currency.xml',
+    ],
+}

account.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<tryton>
+    <data>
+        <record model="res.group" id="group_account">
+            <field name="name">Account</field>
+        </record>
+        <record model="res.group" id="group_account_admin">
+            <field name="name">Account admin</field>
+        </record>
+        <record model="res.user" id="res.user_admin">
+            <field name="groups" eval="[(4, ref('group_account')), (4, ref('group_account_admin'))]"/>
+        </record>
+        <menuitem name="Financial Management" id="menu_account" sequence="2"
+            groups="group_account,group_account_admin"/>
+        <menuitem name="Configuration" parent="menu_account"
+            id="menu_account_configuration" groups="group_account_admin"/>
+    </data>
+</tryton>

currency.py

@@ -0,0 +1,137 @@
+"Currency"
+
+from trytond.osv import fields, OSV, ExceptOSV
+import time
+
+
+class Currency(OSV):
+    'Currency'
+    _name = 'account.currency'
+    _description = __doc__
+    _order = 'code'
+    name = fields.Char('Name', size=128, required=True, translate=True)
+    code = fields.Char('Code', size=3, required=True)
+    rate = fields.Function('get_rate', string='Current rate', digits=(12, 6))
+    rates = fields.One2Many('account.currency.rate', 'currency', 'Rates')
+    rounding = fields.Numeric('Rounding factor', digits=(12, 6))
+    active = fields.Boolean('Active')
+
+    def default_active(self, cursor, user, context=None):
+        return True
+
+    def default_rounding(self, cursor, user, context=None):
+        return 0.01
+
+    def name_search(self, cursor, user, name, args=None, operator='ilike',
+            context=None, limit=None):
+        if args is None:
+            args = []
+        args_name = args[:]
+        args_code = args[:]
+        if name:
+            args_name += [(self._rec_name, operator, name)]
+            args_code += [('code', operator, name)]
+        ids = self.search(cursor, user, args_code, limit=limit, context=context)
+        if len(ids) != 1:
+            ids += self.search(cursor, user, args_name, limit=limit,
+                    context=context)
+        res = self.name_get(cursor, user, ids, context=context)
+        return res
+
+    def get_rate(self, cursor, user, ids, name, arg, context=None):
+        '''
+        Return the rate at the date from the context or the current date
+        '''
+        res = {}
+        rate_obj = self.pool.get('account.currency.rate')
+        if context is None:
+            context = {}
+        date = context.get('date', time.strftime('%Y-%m-%d'))
+        for currency_id in ids:
+            rate_ids = rate_obj.search(cursor, user, [
+                ('currency', '=', currency_id),
+                ('date', '<=', date),
+                ], limit=1, order='date DESC')
+            if rate_ids:
+                res[currency_id] = rate_ids[0]
+            else:
+                res[currency_id] = 0.0
+        rate_ids = [x for x in res.values() if x]
+        rates = rate_obj.browse(cursor, user, rate_ids, context=context)
+        id2rate = {}
+        for rate in rates:
+            id2rate[rate.id] = rate
+        for currency_id in res.keys():
+            if res[currency_id]:
+                res[currency_id] = id2rate[res[currency_id]].rate
+        return res
+
+    def round(self, cursor, user, currency, amount):
+        'Round the amount depending of the currency'
+        return round(amount / currency.rounding) * currency.rounding
+
+    def is_zero(self, cursor, user, currency, amount):
+        'Return True if the amount can be considered as zero for the currency'
+        return abs(self.round(cursor, user, currency, amount)) < currency.rounding
+
+    def compute(self, cursor, user, from_currency_id, amount, to_currency_id,
+            round=True, context=None):
+        '''
+        Take a currency id and an amount
+        Return the amount to the new currency
+        Use the rate of the date of the context or the current date
+        '''
+        from_currency = self.browse(cursor, user, from_currency_id, context=context)
+        to_currency = self.browse(cursor, user, to_currency_id, context=context)
+        if (not from_currency.rate) or (not to_currency.rate):
+            date = context.get('date', time.strftime('%Y-%m-%d'))
+            if not from_currency.rate:
+                name = from_currency.name
+            else:
+                name = to_currency.name
+            raise ExceptOSV('UserError', 'No rate found \n' \
+                    'for the currency: %s \n' \
+                    'at the date: %s' % (name, date))
+        if to_currency == from_currency:
+            if round:
+                return self.round(cursor, user, to_currency, amount)
+            else:
+                return amount
+        else:
+            if round:
+                return self.round(cursor, user, to_currency,
+                        amount * to_currency.rate / from_currency.rate)
+            else:
+                return amount * to_currency.rate / from_currency.rate
+
+Currency()
+
+
+class Rate(OSV):
+    'Rate'
+    _name = 'account.currency.rate'
+    _description = __doc__
+    _rec_name = 'date'
+    _order = 'date DESC'
+    date = fields.Date('Date', required=True, select=1)
+    rate = fields.Numeric('Rate', digits=(12, 6), required=1)
+    currency = fields.Many2One('account.currency', 'Currency')
+
+    def __init__(self):
+        super(Rate, self).__init__()
+        self._sql_constraints = [
+            ('date_currency_uniq', 'UNIQUE(date, currency)',
+                'A currency can only have one rate by date!'),
+        ]
+
+    def default_date(self, cursor, user, context=None):
+        return time.strftime('%Y-%m-%d')
+
+Rate()
+
+
+class Company(OSV):
+    _name = 'company.company'
+    currency = fields.Many2One('account.currency', 'Currency', required=True)
+
+Company()

currency.xml

@@ -0,0 +1,149 @@
+<?xml version="1.0"?>
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="currency_view_form">
+            <field name="model">account.currency</field>
+            <field name="type">form</field>
+            <field name="arch" type="xml">
+                <![CDATA[
+                <form string="Currency" col="6">
+                    <label name="name"/>
+                    <field name="name"/>
+                    <label name="code"/>
+                    <field name="code"/>
+                    <label name="active"/>
+                    <field name="active" xexpand="0" width="100"/>
+                    <label name="rounding"/>
+                    <field name="rounding"/>
+                    <label name="rate"/>
+                    <field name="rate"/>
+                    <field name="rates" colspan="6" mode="tree,form">
+                        <tree string="Rates">
+                            <field name="date"/>
+                            <field name="rate"/>
+                        </tree>
+                        <form string="Rate">
+                            <label name="date"/>
+                            <field name="date"/>
+                            <label name="rate"/>
+                            <field name="rate"/>
+                        </form>
+                    </field>
+                </form>
+                ]]>
+            </field>
+        </record>
+        <record model="ir.ui.view" id="currency_view_tree">
+            <field name="model">account.currency</field>
+            <field name="type">tree</field>
+            <field name="arch" type="xml">
+                <![CDATA[
+                <tree string="Currencies">
+                    <field name="name" select="1"/>
+                    <field name="code" select="1"/>
+                    <field name="rate"/>
+                    <field name="active" tree_invisible="1" select="2"/>
+                </tree>
+                ]]>
+            </field>
+        </record>
+        <record model="ir.action.act_window" id="act_currency_form">
+            <field name="name">Currencies</field>
+            <field name="res_model">account.currency</field>
+            <field name="view_type">form</field>
+        </record>
+        <record model="ir.action.act_window.view" id="act_currency_form_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="currency_view_tree"/>
+            <field name="act_window" ref="act_currency_form"/>
+        </record>
+        <record model="ir.action.act_window.view" id="act_currency_form_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="currency_view_form"/>
+            <field name="act_window" ref="act_currency_form"/>
+        </record>
+        <menuitem parent="menu_account_configuration" action="act_currency_form"
+            id="menu_currency_form"/>
+        <record model="ir.model.access" id="access_currency">
+            <field name="model" search="[('model', '=', 'account.currency')]"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_unlink" eval="False"/>
+        </record>
+        <record model="ir.model.access" id="access_currency_account_admin">
+            <field name="model" search="[('model', '=', 'account.currency')]"/>
+            <field name="group" ref="group_account_admin"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_unlink" eval="True"/>
+        </record>
+        <record model="ir.ui.view" id="company_view_form">
+            <field name="model">company.company</field>
+            <field name="inherit" ref="company.company_view_form"/>
+            <field name="arch" type="xml">
+                <![CDATA[
+                <data>
+                    <xpath
+                        expr="/form/field[@name=&quot;parent&quot;]"
+                        position="after">
+                        <label name="currency"/>
+                        <field name="currency"/>
+                    </xpath>
+                </data>
+                ]]>
+            </field>
+        </record>
+        <record model="ir.ui.view" id="company_view_tree">
+            <field name="model">company.company</field>
+            <field name="inherit" ref="company.company_view_tree"/>
+            <field name="arch" type="xml">
+                <![CDATA[
+                <data>
+                    <xpath
+                        expr="/tree/field[@name=&quot;partner&quot;]"
+                        position="after">
+                        <field name="currency" select="1"/>
+                    </xpath>
+                </data>
+                ]]>
+            </field>
+        </record>
+        <record model="ir.model.access" id="access_currency_rate">
+            <field name="model" search="[('model', '=', 'account.currency.rate')]"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_unlink" eval="False"/>
+        </record>
+        <record model="ir.model.access" id="access_currency_rate_account_admin">
+            <field name="model" search="[('model', '=', 'account.currency.rate')]"/>
+            <field name="group" ref="group_account_admin"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_unlink" eval="True"/>
+        </record>
+        <record model="account.currency" id="eur">
+            <field name="name">Euro</field>
+            <field name="code">EUR</field>
+            <field name="rounding" eval="0.01"/>
+        </record>
+        <record model="account.currency.rate" id="eur_rate">
+            <field name="date" eval="time.strftime('%Y-01-01')"/>
+            <field name="rate" eval="1.0"/>
+            <field name="currency" ref="eur"/>
+        </record>
+        <record model="account.currency" id="usd">
+            <field name="name">United States dollar</field>
+            <field name="code">USD</field>
+            <field name="rounding" eval="0.01"/>
+        </record>
+        <record model="account.currency" id="chf">
+            <field name="name">Swiss franc</field>
+            <field name="code">CHF</field>
+            <field name="rounding" eval="0.01"/>
+        </record>
+    </data>
+</tryton>

setup.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+
+from distutils.core import setup
+from distutils.command import sdist
+
+
+class mysdist(sdist.sdist):
+
+    def add_defaults(self):
+        sdist.sdist.add_defaults(self)
+        if self.distribution.has_pure_modules():
+            build_py = self.get_finalized_command('build_py')
+            data = []
+            for package in build_py.packages:
+                src_dir = build_py.get_package_dir(package)
+                data.extend(build_py.find_data_files(package, src_dir))
+            self.filelist.extend(data)
+
+info = eval(file('__tryton__.py').read())
+
+requires = ['trytond'] + ['trytond-' + x for x in info.get('depends', [])]
+
+setup(name='trytond-' + info['name'].lower(),
+    version=info.get('version', '0'),
+    description=info.get('description', ''),
+    author=info.get('author', ''),
+    author_email=info.get('email', ''),
+    url=info.get('website', ''),
+    package_dir={'trytond.modules.' + info['name'].lower(): '.'},
+    packages=[
+        'trytond.modules.' + info['name'].lower(),
+    ],
+    package_data={
+        'trytond.modules.' + info['name'].lower(): info.get('xml', []),
+    },
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Environment :: Plugins',
+        'Intended Audience :: Developers',
+        'Intended Audience :: Financial and Insurance Industry',
+        'Intended Audience :: Legal Industry',
+        'Natural Language :: English',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python',
+        'Topic :: Office/Business',
+        'Topic :: Office/Business :: Financial :: Accounting',
+    ],
+    license=info.get('license', 'GPL-2'),
+    #requires=requires,
+    cmdclass={
+        'sdist': mysdist,
+    },
+)