[IMP] base: add qweb field for float value representing a time value

We add a new qweb field that transforms a float value to a human-
readable time format.

task-2458013
COM PR: odoo#78049

Part-of: odoo/odoo#78049

odoo/addons/base/models/ir_qweb_fields.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 import base64
+from datetime import time
 import logging
 import re
 from io import BytesIO
@@ -517,6 +518,32 @@ class FloatTimeConverter(models.AbstractModel):
         return format_duration(value)
 
 
+class TimeConverter(models.AbstractModel):
+    """ ``time`` converter, to display integer or fractional value as
+    human-readable time (e.g. 1.5 as "1:30 AM"). The unit of this value
+    is in hours.
+
+    Can be used on any numerical field between: 0 <= value < 24
+    """
+    _name = 'ir.qweb.field.time'
+    _description = 'QWeb Field Time'
+    _inherit = 'ir.qweb.field'
+
+    @api.model
+    def value_to_html(self, value, options):
+        if value < 0:
+            raise ValueError(_("The value (%s) passed should be positive", value))
+        hours, minutes = divmod(int(abs(value) * 60), 60)
+        if hours > 23:
+            raise ValueError(_("The hour must be between 0 and 23"))
+        t = time(hour=hours, minute=minutes)
+
+        locale = babel_locale_parse(self.user_lang().code)
+        pattern = options.get('format', 'short')
+
+        return babel.dates.format_time(t, format=pattern, tzinfo=None, locale=locale)
+
+
 class DurationConverter(models.AbstractModel):
     """ ``duration`` converter, to display integral or fractional values as
     human-readable time spans (e.g. 1.5 as "1 hour 30 minutes").

odoo/addons/base/tests/__init__.py

@@ -33,6 +33,7 @@ from . import test_module
 from . import test_orm
 from . import test_ormcache
 from . import test_osv
+from . import test_qweb_field
 from . import test_qweb
 from . import test_res_config
 from . import test_res_lang

odoo/addons/base/tests/test_qweb_field.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+
+from odoo.tests import common
+
+
+class TestQwebFieldTime(common.TransactionCase):
+    def value_to_html(self, value, options=None):
+        options = options or {}
+        return self.env['ir.qweb.field.time'].value_to_html(value, options)
+
+    def test_time_value_to_html(self):
+
+        self.assertEqual(
+            self.value_to_html(0),
+            "12:00 AM"
+        )
+
+        self.assertEqual(
+            self.value_to_html(11.75),
+            "11:45 AM"
+        )
+
+        self.assertEqual(
+            self.value_to_html(12),
+            "12:00 PM"
+        )
+
+        self.assertEqual(
+            self.value_to_html(14.25),
+            "2:15 PM"
+        )
+
+        self.assertEqual(
+            self.value_to_html(15.1, {'format': 'HH:mm:SS'}),
+            "15:06:00"
+        )
+
+        # Only positive values can be used
+        with self.assertRaises(ValueError):
+            self.value_to_html(-6.5)
+
+        # Only values inferior to 24 can be used
+        with self.assertRaises(ValueError):
+            self.value_to_html(24)