Hello,

I'm trying to modify hr.contract model so the '`end_date`' field gets the value of '`effective_date`' which is in another model '`resignation_application`'.

The concept is when an employee fill a resignation application it updates the contract end date.

Here's my code:

    class resignation_application(osv.osv):
        _name = 'resignation.application'
        _columns = {
            'employee_id': fields.many2one('hr.employee', "Employee", select=True, invisible=False, readonly=True, states={'draft':[('readonly',False)], 'confirm':[('readonly',False)]}),
            'effective_date': fields.date('Effective Date', readonly=True, states={'draft':[('readonly',False)], 'confirm':[('readonly',False)]}, select=True, copy=False),
    class hr_contract(osv.osv):
        _inherit = 'hr.contract'
         _columns = {         
            'end_date': fields.date('End Date', compute= '_compute_effective_date', store=True),        
        }
        @api.model
        def create(self, values):        
            if 'end_date' in values and not values['end_date']:
                del(values['end_date'])
            return super(hr_contract, self).create(values)
        @api.one
        @api.depends('end_date','employee_id')
        def _compute_effective_date(self):
            recs = self.env['resignation.application'] # retrieve an instance of MODEL
            recs = recs.search([('state', '=', 'validate')]) # search returns a recordset
            for rec in recs: # iterate over the records
                if self.employee_id == rec.employee_id:
                    self.end_date = rec.effective_date
            return recs.write({'end_date': rec.effective_date})

But it didn't return the end date.. I know there's something wrong with my return statement but I don't know how to fix it.. Also I want to add an inverse method to `end_date` field so the hr officer can add an end date to the employee contract. Any help will be appreciated.