[IMP] hr_payroll: Add notion of full time/part time on resource calendar

Purpose
=======

In order to be able to manage payroll, we need to know if a resource calendar
is a full time or a part time. For instance, in belgium, 23h a week is a full
time for a teacher but in cp 200 it is 38h. In belgium every employee can take a
parental leave in part time but he cannot take it in part time if they are not full time.
Having a field indicating if the contract is full time or not is useful for computing
salary rules.

Specification
=============

On the calendar model
- Display a computed field with the number of hours in the calendar
- Display a field with the required number of hours to be full time
- Display a computed checkbox, ticked if full time or not

On the contract model
- Add a related on these fields, to ease the access on the salary rules computation.

closes odoo/odoo#30034

addons/hr_payroll/data/hr_payroll_data.xml

 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
     <data noupdate="0">
+
+        <record id="resource.resource_calendar_std" model="resource.calendar">
+            <field name="full_time_required_hours">40</field>
+        </record>
+
+        <record id="resource.resource_calendar_std_35h" model="resource.calendar">
+            <field name="full_time_required_hours">35</field>
+        </record>
+
+        <record id="resource.resource_calendar_std_38h" model="resource.calendar">
+            <field name="full_time_required_hours">38</field>
+        </record>
+
         <record id="contrib_register_employees" model="hr.contribution.register">
             <field name="name">Employees</field>
             <field name="partner_id" eval="False"/>

addons/hr_payroll/models/hr_contract.py

@@ -21,6 +21,10 @@ class HrContract(models.Model):
     help="Defines the frequency of the wage payment.")
     resource_calendar_id = fields.Many2one(required=True, help="Employee's working schedule.")
 
+    hours_per_week = fields.Float(related='resource_calendar_id.hours_per_week')
+    full_time_required_hours = fields.Float(related='resource_calendar_id.full_time_required_hours')
+    is_fulltime = fields.Boolean(related='resource_calendar_id.is_fulltime')
+
     @api.multi
     def get_all_structures(self):
         """

addons/hr_payroll/models/resource.py

 # -*- coding:utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
-from odoo import models, fields
+from odoo import models, fields, api
 from odoo.osv.expression import AND, OR
-
+from odoo.tools import float_compare
 
 class ResourceCalendar(models.Model):
     _inherit = 'resource.calendar'
 
+    hours_per_week = fields.Float(compute="_compute_hours_per_week", string="Hours per Week")
+    full_time_required_hours = fields.Float(string="Fulltime Hours", help="Number of hours to work to be considered as fulltime.")
+    is_fulltime = fields.Boolean(compute='_compute_is_fulltime', string="Is Full Time")
+
     # UI fields
     normal_attendance_ids = fields.One2many(
         'resource.calendar.attendance', 'calendar_id', 'Normal working Time',
@@ -16,6 +20,15 @@ class ResourceCalendar(models.Model):
         'resource.calendar.attendance', 'calendar_id', 'Employees working Time',
         domain=[('resource_id', '!=', False)])
 
+    @api.depends('normal_attendance_ids.hour_from', 'normal_attendance_ids.hour_to')
+    def _compute_hours_per_week(self):
+        for calendar in self:
+            calendar.hours_per_week = sum((attendance.hour_to - attendance.hour_from) for attendance in calendar.normal_attendance_ids)
+
+    def _compute_is_fulltime(self):
+        for calendar in self:
+            calendar.is_fulltime = not float_compare(calendar.full_time_required_hours, calendar.hours_per_week, 3)
+
 
 class ResourceCalendarAttendance(models.Model):
     _inherit = 'resource.calendar.attendance'
@@ -25,8 +38,10 @@ class ResourceCalendarAttendance(models.Model):
 
     benefit_type_id = fields.Many2one('hr.benefit.type', 'Benefit Type', default=_default_benefit_type_id)
 
+
 class ResourceCalendarLeave(models.Model):
     _inherit = 'resource.calendar.leaves'
+
     benefit_type_id = fields.Many2one('hr.benefit.type', 'Benefit Type')
 
 

addons/hr_payroll/views/resource_views.xml

@@ -7,21 +7,38 @@
         <field name="model">resource.calendar</field>
         <field name="inherit_id" ref="resource.resource_calendar_form"/>
         <field name="arch" type="xml">
+            <xpath expr="//group[@name='resource_details']" position="inside">
+                <group>
+                    <label for="full_time_required_hours" string="Full Time"/>
+                    <div class="o_row">
+                        <field name="full_time_required_hours" nolabel="1"/>
+                        <span> hours/week</span>
+                    </div>
+                    <field name="is_fulltime" invisible="1"/>
+                </group>
+            </xpath>
             <xpath expr="//field[@name='attendance_ids']" position="replace">
                 <field name="normal_attendance_ids"/>
+                <group class="oe_subtotal_footer oe_right" style="width: 25% !important;">
+                    <label for="hours_per_week" string="Total"/>
+                    <div class="o_row">
+                        <field name="hours_per_week" nolabel="1"/>
+                        <span> hours/week</span>
+                    </div>
+                </group>
             </xpath>
             <xpath expr="//notebook" position="inside">
-                <page string="Employees Working Hours">
+                <page string="Employees Working Hours" groups="base.group_no_one">
                     <field name="extra_attendance_ids">
                         <tree string="Working Time" editable="top">
                             <field name="resource_id" string="Employee"/>
                             <field name="name"/>
                             <field name="dayofweek"/>
+                            <field name="day_period"/>
                             <field name="hour_from" widget="float_time"/>
                             <field name="hour_to" widget="float_time"/>
                             <field name="date_from"/>
                             <field name="date_to"/>
-                            <field name="day_period"/>
                         </tree>
                     </field>
                 </page>

addons/resource/models/resource.py

@@ -179,7 +179,7 @@ class ResourceCalendar(models.Model):
         'resource.calendar.leaves', 'calendar_id', 'Global Leaves',
         domain=[('resource_id', '=', False)]
         )
-    hours_per_day = fields.Float("Average hour per day", default=HOURS_PER_DAY,
+    hours_per_day = fields.Float("Average Hour per Day", default=HOURS_PER_DAY,
                                  help="Average hours per day a resource is supposed to work with this calendar.")
     tz = fields.Selection(
         _tz_get, string='Timezone', required=True,

addons/resource/views/resource_views.xml

@@ -189,11 +189,11 @@
             <tree string="Working Time" editable="top">
                 <field name="name"/>
                 <field name="dayofweek"/>
+                <field name="day_period"/>
                 <field name="hour_from" widget="float_time"/>
                 <field name="hour_to" widget="float_time"/>
                 <field name="date_from"/>
                 <field name="date_to"/>
-                <field name="day_period"/>
             </tree>
         </field>
     </record>
@@ -241,7 +241,7 @@
                         <button name="%(resource_calendar_leaves_action_from_calendar)d" type="action"
                                 string="Leaves" icon="fa-calendar-times-o"
                                 class="oe_stat_button"
-                                groups="base.group_user"/>
+                                groups="base.group_no_one"/>
                         <button name="%(resource_resource_action_from_calendar)d" type="action"
                                 string="Work Resources" icon="fa-cogs"
                                 class="oe_stat_button"
@@ -251,9 +251,11 @@
                         <field name="name"/>
                     </h1>
                     <group name="resource_details">
-                        <field name="company_id" groups="base.group_multi_company"/>
-                        <field name="hours_per_day"/>
-                        <field name="tz"/>
+                        <group>
+                            <field name="company_id" groups="base.group_multi_company"/>
+                            <field name="hours_per_day"/>
+                            <field name="tz"/>
+                        </group>
                     </group>
                     <notebook>
                         <page string="Working Hours" name="working_hours">