Hi,

Thanks, but I still need some help.

I have this error : TypeError: sale.order.products(1, 2, 3) is not JSON serializable

And, the model that i put data json, should be sale.order or sale.order.products ?

-----------------------------------------------------------------

class my_class(models.Model):

_inherit = 'sale.order'

products = fields.One2many(comodel_name='sale.order.products', inverse_name='order_id')

@api.multi

def my_print_method(self):

data = {'ids': self.products,

'model': 'sale.order.products',

'form': self.read([])[0],

}

return {'type': 'ir.actions.report.xml',

'report_name': 'mymodule.sale_order_products_report',

'report_type': "qweb-pdf",

'datas': data

}

please use 'ids': self.products.ids instead of self.products

thanks.

I get this message:

QWebException: ('MissingError', u'Record does not exist or has been deleted.')

I tried to change:

'model': 'sale.order.products',

to

'model': 'sale.order',

But same result. Of course the ids exist.

Don't know what i am missing.

I am still stucked on it, if you have some idea