I like to add some fields in the warehouse so I added the class with columns in the stock.py. But it shows error. I can not find what the error is.

The error message is

Traceback (most recent call last):
File "/home/rck/Desktop/odoo-8.0/openerp/http.py", line 539, in _handle_exception return super(JsonRequest, self)._handle_exception(exception) File "/home/rck/Desktop/odoo-8.0/openerp/http.py", line 590, in dispatch return self._json_response(result) File "/home/rck/Desktop/odoo-8.0/openerp/http.py", line 528, in _json_response body = simplejson.dumps(response) File "/usr/local/lib/python2.7/dist-packages/simplejson/__init__.py", line 366, in dumps return _default_encoder.encode(obj) File "/usr/local/lib/python2.7/dist-packages/simplejson/encoder.py", line 269, in encode chunks = self.iterencode(o, _one_shot=True) File "/usr/local/lib/python2.7/dist-packages/simplejson/encoder.py", line 348, in iterencode return _iterencode(o, 0) File "/usr/local/lib/python2.7/dist-packages/simplejson/encoder.py", line 246, in default

raise TypeError(repr(o) + " is not JSON serializable")

TypeError: product.step1() is not JSON serializable


My py code in stock.py is

class product_step1(osv.osv):
_name = "product.step1"

_columns = {

'name':fields.float('Name'),

'b':fields.float('B'),

'c':fields.float('C'),

'd':fields.float('D'),

'e':fields.float('E'),

'f':fields.float('F'),

'g':fields.float('G'),

'h':fields.float('H'),

'i':fields.float('I'),

'j':fields.float('J'),

}

my xml code in stock_view.xml is


<record model="ir.ui.view" id="step1_tree_view">

<field name="name">step1.tree</field>

<field name="model">product.step1</field>

<field name="type">tree</field>

<field name="arch" type="xml">

<tree string="Product Details">

<field name="name"/>

<field name="b"/>

<field name="c"/>

</tree> </field> </record>


<record model="ir.ui.view" id="step1_form_view">

<field name="name">step1.form</field>

<field name="model">product.step1</field>

<field name="type">form</field>

<field name="arch" type="xml">

<form string="Product Details">

<sheet>

<group>

<group>

<field name="name"/>

<field name="b"/>

<field name="c"/>

<field name="d"/>

<field name="e"/>

</group>

<group>

<field name="f"/>

<field name="g"/>

<field name="h"/>

<field name="i"/>

<field name="j"/>

</group>

</group>

</sheet>

</form> </field> </record>


<record model="ir.actions.act_window" id="action_step1_form">

<field name="name">step1</field>

<field name="res_model">product.step1</field>

</record>
<menuitem name="Product Details" parent="menu_stock_root" id="step1_menu_mainform"/>

<menuitem name="Product Description" parent="step1_menu_mainform" id="step1_menu1_mainform" action="action_step1_form"/>


When I click the Quants and stock Moves tab in warehouse this error has been shown.

Notify me where I'm doing the mistake.

Thank you.

1.Work Absence
-If there are employee who doesn’t scan finger print at all on that date it will count as 1 day absence,
1 day absence mean employee doesn’t get paid on that specific day so the calculation will be like this
result = (contract.wage / 30) * days employee missed

start_dt = datetime.datetime.combine(fields.Date.from_string(payslip.date_from), datetime.datetime.min.time())
end_dt = datetime.datetime.combine(fields.Date.from_string(payslip.date_to), datetime.datetime.max.time())

start_dt_str = fields.Datetime.to_string(start_dt)
end_dt_str = fields.Datetime.to_string(end_dt)

resource_calendar_id = employee._get_resource_calendar()
attendance_ids = employee.attendance_ids.filtered(lambda att: att.check_in >= start_dt_str and att.check_out <= end_dt_str)

missed_days = 0
for dt in dateutil.rrule.rrule(dateutil.rrule.DAILY, dtstart=start_dt, until=end_dt):
    if not resource_calendar_id._is_work_day(dt.date(), resource_calendar_id.id):
        continue

    if not attendance_ids.filtered(lambda att: fields.Date.from_string(att.check_in) == dt.date() and fields.Date.from_string(att.check_out) == dt.date()):
        missed_days +=1

result = (contract.wage / 30) * missed_days

start_dt = datetime.datetime.combine(fields.Date.from_string(payslip.date_from), datetime.datetime.min.time())
end_dt = datetime.datetime.combine(fields.Date.from_string(payslip.date_to), datetime.datetime.max.time())

start_dt_str = fields.Datetime.to_string(start_dt)
end_dt_str = fields.Datetime.to_string(end_dt)

resource_calendar_id = employee._get_resource_calendar()
attendance_ids = employee.attendance_ids.filtered(lambda att: att.check_in >= start_dt_str and att.check_out <= end_dt_str)

lates_count = 0
for dt in dateutil.rrule.rrule(dateutil.rrule.DAILY, dtstart=start_dt, until=end_dt):
    employee_att_ids = attendance_ids.filtered(lambda att: fields.Date.from_string(att.check_in) == dt.date())
    if employee_att_ids:
        emp_check_in = fields.Datetime.from_string(employee_att_ids[0].check_in)
        calendar_att_ids = resource_calendar_id._get_day_attendances(dt.date(), dt.min.time(), dt.max.time())
        if calendar_att_ids:
            hour, minute = divmod(calendar_att_ids[0].hour_from * 60.0, 60)
            calendar_start_dt = dt.replace(hour=int(hour), minute=int(minute))
            if (emp_check_in - calendar_start_dt).seconds / 60 > 10.0:
                lates_count += 1

result = (contract.wage / 30) * (lates_count // 11)

start_dt = datetime.datetime.combine(fields.Date.from_string(payslip.date_from), datetime.datetime.min.time())
end_dt = datetime.datetime.combine(fields.Date.from_string(payslip.date_to), datetime.datetime.max.time())

start_dt_str = fields.Datetime.to_string(start_dt)
end_dt_str = fields.Datetime.to_string(end_dt)

resource_calendar_id = employee._get_resource_calendar()
attendance_ids = employee.attendance_ids.filtered(lambda att: att.check_in >= start_dt_str and att.check_out <= end_dt_str)

cumm_lates_minutes= 0.0
for dt in dateutil.rrule.rrule(dateutil.rrule.DAILY, dtstart=start_dt, until=end_dt):
    employee_att_ids = attendance_ids.filtered(lambda att: fields.Date.from_string(att.check_in) == dt.date())
    if employee_att_ids:
        emp_check_in = fields.Datetime.from_string(employee_att_ids[0].check_in)
        calendar_att_ids = resource_calendar_id._get_day_attendances(dt.date(), dt.min.time(), dt.max.time())
        if calendar_att_ids:
            hour, minute = divmod(calendar_att_ids[0].hour_from * 60.0, 60)
            calendar_start_dt = dt.replace(hour=int(hour), minute=int(minute))
            late_minutes = (emp_check_in - calendar_start_dt).seconds / 60
            cumm_lates_minutes += late_minutes
        
late_hours = cumm_lates_minutes // 60
result = (contract.wage / 30) * (late_hours // 4)

# cost per hour
hour_cost = ((contract.wage / 30) / 8 )

# start calculating overtime cost
result = 0.0
if payslip.hr_overtime_line_ids:
    for line in payslip.hr_overtime_line_ids:
        if line.work_day_type_id and line.work_day_type_id.is_holiday:
            result += hour_cost * line.worked_hours * line.work_day_type_id.rate / 100.0
        else:
            result += hour_cost * line.worked_hours * line.rate / 100.0

how to subtotal debit , creid by date or by peroid?

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