Hello Gents,

Need help for below. 

I need to prevent entering records one2many field( sparepartslines ) in the  same Asset model based on the field 'name' from spareparts_lineitem.

User can enter the same spareparts_lineitem in different Asset

class Asset(models.Model):
    _name = 'asset'

    name = fields.Char(string="Code", required=True)
    assetname = fields.Char(string='Asset Name')
    sparepartslines = fields.One2many('spareparts_lineitem', 'asset', string='Spareparts')


class Spareparts(models.Model):
    _name = 'spareparts'

    name = fields.Char(string="Item number", required=True)
    description = fields.Char(string='Description')


class Spareparts_lineitem(models.Model):
    _name = 'spareparts_lineitem'

    name = fields.Many2one('spareparts', string="Item number", required=True)
    description = fields.Char(string='Description', related='name.description', store=True, readonly=True)
    quantity = fields.Float(string='Quantity', required=True)
    quantityinstore = fields.Float(string='Qty in Store')
    asset = fields.Many2one('asset', string="Asset")