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V10 Passing One2Many values into Transient Model One2Many (TypeError from onchange & DataError from default)

I'm customizing a module for hr.payroll that registers payment for the payslip, starting with a Register Payment wizard that then passes the data to account.payment when validated for the check to be printed. All other fields like memo and partner_id pass as expected, but doesn't fill anything in my one2many field, which is trying to pull the Name and Amount values from hr.payslip line_ids. 

My One2Many field:

pay_line_ids = fields.One2many('pay.line.ids', 'payline_id', string='Paylines', readonly=False, copy=True)


class PayLineIds(models.Model):

    _name = 'pay.line.ids'

    _description = 'Payslip Payment Lines'


    payline_id = fields.Many2one('account.payment', string='Pay Slip', required=False)

    name = fields.Char(string='Name', required=False)

    amount = fields.Float(digits=dp.get_precision('Payroll'))


I've attempted two methods. Any help is appreciated.

First is setting onchange


    @api.onchange('pay_line_ids')

    def _onchange_lines(self):

        context = dict(self._context or {})

        active_ids = context.get('active_ids', [])

        payslip = self.env['hr.payslip'].browse(active_ids)

        ids = []

        for line in payslip.line_ids:

            lines = {'name':line.name,'amount':line.amount}

            ids.append(lines)

        self.pay_line_ids = [(6,0,ids)]


Which results in the following error:
  File "/mnt/extra-addons/hr_payroll_payment/hr_payroll_register_payment.py", line 119, in _onchange_lines
    self.pay_line_ids = [(6,0,ids)]
  File "/usr/lib/python2.7/dist-packages/odoo/fields.py", line 933, in __set__
    value = self.convert_to_cache(value, record)
  File "/usr/lib/python2.7/dist-packages/odoo/fields.py", line 2055, in convert_to_cache
    ids = OrderedSet(command[2])
  File "/usr/lib/python2.7/dist-packages/odoo/tools/misc.py", line 1121, in __init__
    self._map = OrderedDict((elem, None) for elem in elems)
  File "/usr/lib/python2.7/collections.py", line 52, in __init__
    self.__update(*args, **kwds)
  File "/usr/lib/python2.7/_abcoll.py", line 567, in update
    self[key] = value
  File "/usr/lib/python2.7/collections.py", line 58, in __setitem__
    if key not in self:
TypeError: unhashable type: 'dict'

Second is setting the default.

pay_line_ids = fields.One2many('pay.line.ids', 'payline_id', string='Paylines', readonly=False, copy=True, default=_default_line_ids)

    @api.model
    def _default_line_ids(self):
        context = dict(self._context or {})
        active_ids = context.get('active_ids', [])
        payslip = self.env['hr.payslip'].browse(active_ids)
        res = {}
for line in payslip.line_ids:
            res = {
                'name': line.name,
                'amount': line.amount,
            }
        return [(6, 0, res)]

Which results in the following error:
DataError: invalid input syntax for integer: "amount"
LINE 2: ...                      WHERE "pay_line_ids".id IN ('amount', ...
                                                             ^
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