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Emm

Hello,
So my problem is, I have already created some Items and lines objects, and I'd like to pass those objects from Line to Order.
I'm trying to pass values through buttons by using this:

(4, ID)                link to existing record with id = ID (adds a relationship)

but the only thing I get is an error. 

This is an example of my code:

class Item(models.Model):
	_name = 'a.a'
	
	name= fields.Integer(string = "Name")

class Line(models.Model):
	_name = 'b.b'
	item_id = fields.Many2one('a.a', string="Item")
        quantity = fields.Integer(string = "Quantity")
        
        @api.multi
	def addOrder(self):
            for m in self:
                result = self.env['c.c'].create(
						{'line_id':[(4,m.id)], }
                                               )
	    return result

class Order(models.Model):
	_name = 'c.c'
	line_id = fields.One2many('b.b','item_id')
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Emipro Technologies Pvt. Ltd.
Best Answer

Hello Emm,

You need to add Many2one field in 'b.b'  and give that field name in One2many field of 'c.c'.

You can write like following.

Example:

class Line(models.Model):
    _name = 'b.b'
    item_id = fields.Many2one('a.a', string="Item")
    quantity = fields.Integer(string = "Quantity")
    order_id =fields.Many2one('c.c',string="order")


class Order(models.Model):
    _name = 'c.c'
    line_id = fields.One2many('b.b','order_id')

Thanks,

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