[ADD] web_pytz

web_pytz/__init__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    This module copyright (C) 2014 Therp BV (<http://therp.nl>).
+#
+#    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/>.
+#
+##############################################################################

web_pytz/__openerp__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    This module copyright (C) 2014 Therp BV (<http://therp.nl>).
+#
+#    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": "pytz support for filter domains",
+    "version": "1.0",
+    "author": "Therp BV",
+    "license": "AGPL-3",
+    "complexity": "normal",
+    "description": """
+Introduction
+------------
+This module allows complex timezone operations in domains mimicing python's
+pytz. The heavy lifting is done by http://momentjs.com/timezone.
+
+It is meant to allow correct filters for 'Today', 'Yesterday' etc.
+
+In addition to implementing a subset of `pytz.tzinfo` and
+`datetime.astimezone`, there's a shortcut called `utc_today()` which returns
+the beginning of the day in the current user's time zone translated to UTC,
+this is equivalent to::
+
+  pytz.timezone(tz).localize(datetime.datetime.now().replace(hour=0, minute=0,
+      second=0)).astimezone(pytz.utc)
+
+in python.
+
+Usage
+-----
+
+Depend on this module and use filters like::
+
+  [('write_date', '>=', utc_today().strftime('%Y-%m-%d'))]
+
+which displays records changed in the user's conception of today.""",
+    "category": "Dependency",
+    "depends": [
+        'web',
+    ],
+    "data": [
+    ],
+    "js": [
+        'static/src/js/web_pytz.js',
+        'static/lib/moment.min.js',
+        'static/lib/moment-timezone.min.js',
+    ],
+    "css": [
+    ],
+    "qweb": [
+    ],
+    "test": [
+        'static/test/web_pytz.js',
+    ],
+    "auto_install": False,
+    "installable": True,
+    "application": False,
+    "external_dependencies": {
+        'python': [],
+    },
+}

web_pytz/static/src/js/web_pytz.js

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+//-*- coding: utf-8 -*-
+//############################################################################
+//
+//   OpenERP, Open Source Management Solution
+//   This module copyright (C) 2014 Therp BV (<http://therp.nl>).
+//
+//   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/>.
+//
+//############################################################################
+
+openerp.web_pytz = function(instance)
+{
+    var original_pyeval_context = instance.web.pyeval.context;
+
+    var tzinfo = py.type('tzinfo', null, {
+        tzname: function()
+        {
+            var args = py.PY_parseArgs(arguments, 'dst');
+            return py.str.fromJSON(this.zone.name);
+        },
+        localize: function()
+        {
+            var args = py.PY_parseArgs(arguments, 'dst'),
+                result = py.PY_call(
+                    args.dst.__class__,
+                    [
+                        py.float.fromJSON(args.dst.year),
+                        py.float.fromJSON(args.dst.month),
+                        py.float.fromJSON(args.dst.day),
+                        py.float.fromJSON(args.dst.hour),
+                        py.float.fromJSON(args.dst.minute),
+                        py.float.fromJSON(args.dst.second),
+                        py.float.fromJSON(args.dst.microsecond),
+                    ]);
+            result.tzinfo = this;
+            return result;
+        },
+    });
+
+    var pytz = py.PY_call(py.object);
+    pytz.timezone = py.PY_def.fromJSON(function()
+    {
+        var args = py.PY_parseArgs(arguments, 'tz_name'),
+            tz = moment.tz.zone(args.tz_name.toJSON()),
+            result = py.PY_call(tzinfo);
+        result.zone = tz;
+        return result;
+    });
+    pytz.utc = py.PY_call(
+        py.PY_getAttr(pytz, 'timezone'), [py.str.fromJSON('UTC')]);
+
+    function astimezone()
+    {
+        var args = py.PY_parseArgs(arguments, 'tzinfo');
+        // TODO: check that we only do this with localized dts
+        var d = moment.tz(
+            {
+                year: this.year,
+                month: this.month - 1,
+                day: this.day,
+                hour: this.hour,
+                minute: this.minute,
+                second: this.second,
+            },
+            this.tzinfo.zone.name)
+            .tz(args.tzinfo.zone.name);
+        return py.PY_call(
+            this.__class__,
+            [d.year(), d.month() + 1, d.date(), d.hour(), d.minute(),
+             d.second()]);
+    };
+
+    instance.web.pyeval.context = function ()
+    {
+        var ctx = original_pyeval_context();
+        ctx.datetime.datetime.astimezone = astimezone;
+        return _.extend(
+                ctx,
+                {
+                    pytz: pytz,
+                    utc_today: function(args, kwargs)
+                    {
+                        var timezone = py.PY_call(
+                                py.PY_getAttr(pytz, 'timezone'),
+                                [py.str.fromJSON(
+                                    ctx.tz || (args.length ? args[0] : 'UTC'))]),
+                            now = py.PY_call(
+                                py.PY_getAttr(ctx.datetime.datetime, 'now')),
+                            localized = py.PY_call(
+                                py.PY_getAttr(timezone, 'localize'),
+                                [now]);
+                        localized.hour = 0;
+                        localized.minute = 0;
+                        localized.second = 0;
+                        localized.millisecond = 0;
+                        return py.PY_call(
+                            py.PY_getAttr(localized, 'astimezone'),
+                            [py.PY_getAttr(pytz, 'utc')]);
+                    }
+                });
+    }
+}

web_pytz/static/test/web_pytz.js

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+//-*- coding: utf-8 -*-
+//############################################################################
+//
+//   OpenERP, Open Source Management Solution
+//   This module copyright (C) 2014 Therp BV (<http://therp.nl>).
+//
+//   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/>.
+//
+//############################################################################
+
+openerp.testing.section(
+        'timezones',
+        {dependencies: ['web.coresetup', 'web.pyeval']},
+        function(test)
+        {
+            test('basic', function(instance)
+            {
+                openerp.web_pytz(instance);
+                var eval = function(expression, context)
+                {
+                    var result_domain = instance.web.pyeval.eval(
+                        'domain', "[['a', '=', " + expression + "]]",
+                        context || {}, {});
+                    return result_domain[0][2];
+                }
+
+                var result;
+                
+                result = eval(
+                    "pytz.timezone('Europe/Amsterdam').localize(datetime.datetime(2014, 10, 6, 0, 0, 0)).astimezone(pytz.timezone('utc')).strftime('%Y-%m-%d %H:%M:%S')");
+                ok(result == '2014-10-05 22:00:00', 'day start in Amsterdam, summer');
+
+                result = eval(
+                    "pytz.timezone('Europe/Amsterdam').localize(datetime.datetime(2014, 12, 6, 0, 0, 0)).astimezone(pytz.timezone('utc')).strftime('%Y-%m-%d %H:%M:%S')");
+                ok(result == '2014-12-05 23:00:00', 'day start in Amsterdam, winter');
+
+                result = eval(
+                    "pytz.timezone('America/Toronto').localize(datetime.datetime(2014, 10, 6, 0, 0, 0)).astimezone(pytz.utc).strftime('%Y-%m-%d %H:%M:%S')");
+                ok(result == '2014-10-06 04:00:00', 'day start in Torronto');
+
+                result = eval(
+                    "pytz.timezone('Asia/Shanghai').localize(datetime.datetime(2014, 10, 6, 0, 0, 0)).astimezone(pytz.utc).strftime('%Y-%m-%d %H:%M:%S')");
+                ok(result == '2014-10-05 16:00:00', 'day start in Shanghai');
+
+                _.each(['Europe/Amsterdam', 'America/Toronto', 'Asia/Shanghai'], function(tz)
+                {
+                    result = eval("utc_today().strftime('%Y-%m-%d %H:%M:%S')", {tz: tz});
+                    var now = moment();
+                    ok(result == moment.tz([now.year(), now.month(), now.date()], tz).hour(0).utc().format('YYYY-MM-DD HH:mm:ss'), _.str.sprintf('day start with shortcut in %s', tz));
+                });
+            });
+        });