Calling method and field from other model in odoo - odoo

Question

these are my 1st model, method, and fields
class overtime(models.Model):
_name = 'overtime'
def calc_overtime(self, start_date, end_date):
#import pdb;pdb.set_trace()
f = '%Y-%m-%d %H:%M:%S'
d1 = datetime.strptime(start_date, f)
d2 = datetime.strptime(end_date, f)
timeDiff = d2-d1
hours = float(timeDiff.total_seconds()/3600)
return hours
start_date = fields.Datetime('Start Date', required=True, default=lambda *a : time.strftime("%Y-%m-%d"+" "+"%H:%M:%S")
, readonly=True, states={'draft': [('readonly', False)]})
end_date = fields.Datetime('End Date', required=True, default=lambda *a : time.strftime("%Y-%m-%d"+" "+"%H:%M%S")
, readonly=True, states={'draft': [('readonly', False)]})
and these are my 2nd model, method and field
class overtime_details(models.Model):
_name='overtime_details'
def function(self):
"calling calc_overtime"
ovrtm = fields.Float('Overtime Hour(s)')
how do i call the calc_overtime method, start_date and end_date as parameters, in the overtime details class by using "self.pool.get"
or "self.env". and make the result as ovrtm field's value. Thanks before

Answer 1

I think you don't need to calculate the nb of hours in the first class, The function sould be in the second class, and add a One2many field.
class overtime(models.Model):
_name = 'overtime'
start_date = fields.Datetime('Start Date', required=True, default=lambda *a : time.strftime("%Y-%m-%d"+" "+"%H:%M:%S")
, readonly=True, states={'draft': [('readonly', False)]})
end_date = fields.Datetime('End Date', required=True, default=lambda *a : time.strftime("%Y-%m-%d"+" "+"%H:%M%S")
, readonly=True, states={'draft': [('readonly', False)]})
class overtime_details(models.Model):
_name='overtime_details'
def compute_houres(self, start_date, end_date):
d1 = self.overtime_id.end_date
d2 = self.overtime_id.start_date
f = '%Y-%m-%d %H:%M:%S'
d1 = datetime.strptime(start_date, f)
d2 = datetime.strptime(end_date, f)
timeDiff = d2-d1
hours = float(timeDiff.total_seconds()/3600)
self.ovrtm = hours
overtime_id = fields.Many2one('overtime', 'Réference', ondelete='cascade'),
ovrtm = fields.Float(compute='compute_houres')