Hai

     just add store = True . For yr code

     samp_cal3=fields.Integer(string="c",readonly=True,store=True)

Hello

I hope below code will help you

In my case have Total year field is readonly and based on 'Date of birth' Total year will be update

Using onchange method, Can get Total year on field but when save that record Total Year field to set blank

Solution:-

Create new dummy field of total year and set that dummy field value on original field

Example:-

Python file

total_year = fields.Float()

total_year_copy = fields.Float()

from datetime import date​​

# Onchange method

@api.onchange('dob')
def onchange_dob(self):
today = date.today()
self.total_year = self.total_year_copy = today.year - dob.year - ((today.month, today.day) < (dob.month, dob.day))

# Create method

@api.model

def create(self, vals):

if 'total_year_copy' in vals:

vals.update({'total_year': vals.get('total_year_copy')})

return super(Project, self).create(vals)

# Write method

@api.multi

def write(self, vals):

if 'total_year_copy' in vals:

vals.update({'total_year': vals.get('total_year_copy')})

return super(Project, self).write(vals)

Xml File

<field name="total_year" readonly="1"/>

<field name="total_year_copy" invisible="1"/>

Hope this help you to save readonly records

Best Regards,

Ankit H Gandhi