Override many2one with many2many

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP



Override many2one with many2many



I try to override many2one field with many2many


property_product_pricelist = fields.Many2many('product.pricelist',
string="Sale Pricelist",
help="This pricelist will be used, instead of the default one, for sales to the current partner")



and i get this error when try to save values


File "/home//workspace/odoo-9.0/openerp/models.py", line 5384, in _browse
env.prefetch[cls._name].update(ids)
TypeError: unhashable type: 'list'



also i tryid like this


property_product_pricelist = fields.Many2many('product.pricelist', column1='partner_id', column2='pricelist_id')



but get


ProgrammingError: column product_pricelist_res_partner_rel.pricelist_id does not exist



LINE 1: SELECT product_pricelist_res_partner_rel.pricelist_id, produ...





I would suggest you not to do that because if a Many2one field already exists, it must be used at many different places and you will have errors everywhere, because a singleton is expected instead of a list. You should create another field instead.
– Harlan
Aug 7 at 6:01





What you are doing is bad because you will break the logic.Ask you the question why I need a many2many field ?
– WaKo
Aug 7 at 13:17


why I need a many2many field ?




1 Answer
1



Best solution I came up with.


multiply_pricelists_ids = fields.Many2many(
'product.pricelist', string='Multiply Pricelists')

@api.onchange('property_product_pricelist')
@api.multi
def pricelist_change(self):
self.multiply_pricelists_ids = self.property_product_pricelist






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