display one2many values of a model in a wizard - odoo

Question

I have a class salesin which has a one2many field emidetails . Here i defined abutton that directs to a wizard saleswizard . What i need to acheive is when i click the button , the wizard that opens should contain the emidetails one2many field of salesin class .. How to
'''
class Salesin(models.Model):
_inherit = 'sale.order'
amount = fields.Integer(string="Total Amount")
product = fields.Char(string="Product")
paymenttype = fields.Selection([('Full Payment', 'Full Payment'), ('EMI', 'EMI'), ],
string=" Payment Type : ", default='Full Payment')
emidetails = fields.One2many(comodel_name="emidetails",inverse_name="saleorder",string="Emi Details",onchange="restrict")
#api.multi
def cnfirm(self):
result = {
'view_type': 'form',
'view_mode': 'form',
'res_model': 'confirmbox',
'name': 'Confirm the Quantities Currently Have',
'type': 'ir.actions.act_window',
'target': 'new',
}
return result
class emidetails(models.Model):
_name = "emidetails"
saleorder = fields.Many2one( comodel_name="sale.order' ,string="SO")
installment = fields.Selection([('Level 1', '1st Installment'), ('Level 2', '2nd
Installment'), ('Level 3', '3rd Installment'), ],
string=" Installment : ",)
amount = fields.Char(string="Amount:",onchange="calculate_med")
date = fields.Date(string="Due Date")
cust = fields.Many2one(comodel_name="sale.order")
status = fields.Selection([('Pending', 'Pending'), ('Paid', 'Paid'), ],
string=" Status : ",)
class saleswizard(models.TransientMOdel) :
_name = saleswiz
emidetails = fields.One2many
(comodel_name="emidetails",inverse_name="saleorder",string="Emi
Details",onchange="restrict")

Answer 1

Use a Many2many field:
emidetails = fields.Many2many("emidetails", string="EmiDetails")
And passe default values in context:
#api.multi
def cnfirm(self):
self.ensure_one()
emidetails = [(4, emit.id, 0) for emit in self.emidetails]
result = {
'view_type': 'form',
'view_mode': 'form',
'res_model': 'saleswiz',
'name': 'Confirm the Quantities Currently Have',
'type': 'ir.actions.act_window',
'target': 'new',
'context': {'default_emidetails': emidetails}
}
return result