old_contents: # -*- coding: utf-8 -*-
  
  from odoo import fields, models
  
  
  class Employee(models.Model):
  
      _name = 'tmc.hr.employee'
      _order = 'name'
  
      name = fields.Char()
  
      internal_number = fields.Char(
          size=3,
          required=True
      )
  
      docket_number = fields.Integer(
          required=True
      )
  
      bank_account_number = fields.Char()
  
      bank_branch = fields.Integer(
          size=2
      )
  
      admission_date = fields.Date()
  
      email = fields.Char()
  
      active = fields.Boolean(
          default=True
      )
  
      employee_title_ids = fields.Many2many(
          comodel_name='tmc.hr.employee_title'
      )
  
      employee_job_id = fields.Many2one(
          comodel_name='tmc.hr.employee_job'
      )
  
      office_id = fields.Many2one(
          comodel_name='tmc.hr.office'
      )
  
      _sql_constraints = [
          ('number_uniq',
           'unique(docket_number, bank_account_number)',
           'Number must be unique!'),
      ]
  
new_contents: # -*- coding: utf-8 -*-
  
  from odoo import fields, models
  
  
  class Employee(models.Model):
  
      _name = 'tmc.hr.employee'
      _order = 'name'
  
      name = fields.Char()
  
      internal_number = fields.Char(
          size=3
      )
  
      docket_number = fields.Integer()
  
      bank_account_number = fields.Char()
  
      bank_branch = fields.Integer(
          size=2
      )
  
      admission_date = fields.Date()
  
      email = fields.Char()
  
      active = fields.Boolean(
          default=True
      )
  
      employee_title_ids = fields.Many2many(
          comodel_name='tmc.hr.employee_title'
      )
  
      employee_job_id = fields.Many2one(
          comodel_name='tmc.hr.employee_job'
      )
  
      office_id = fields.Many2one(
          comodel_name='tmc.hr.office'
      )
  
      _sql_constraints = [
          ('number_uniq',
           'unique(docket_number, bank_account_number)',
           'Number must be unique!'),
      ]
  
subject: Remove required property on some fields