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Rejini Varghese 
list_line = fields.One2many('car.rental.list','list_number',string="Checklist")

class VehicleTools(models.Model):
    _name = 'vehicle.tools'

    name = fields.Char(string="Name")
    price = fields.Float(string="Price")

class CarRentalList(models.Model):
    _name = 'car.rental.list'
    name = fields.Many2one('vehicle.tools', string="Name")

    list_active = fields.Boolean(string="Active", default=False)
    list_number = fields.Many2one('car.rental.contract', string="list number")
    price = fields.Float(string="Price")

    @api.onchange('name')
    def onchange_name(self):
        self.price=self.name.price


How to set default values for name and price fields in 'car.rental.list' with values of name and price fields of 'vehicle.tools'?
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Rejini Varghese
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Please note that

I have one2many field

list_line = fields.One2many('car.rental.list','list_number',string="Checklist")

Here i have to get all the values of name and price listed (when i click the tab)

These values should be loaded from 'car.tools' (which i have given as data file) .

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Cybrosys Techno Solutions Pvt.Ltd
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Hi,

You can use related attribute for the field,

price = fields.Float(string="Price", related='name.price')

The value will come to field only once you save the record.


From the XML, you can do it using the context like this,

<page string="String Here">
     <field name="field_name" context="{'default_price': price}">
         <tree string="string" editable="bottom">
             <field name="price"/>
         </tree>
     </field>


Thanks

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Syed Hamza

it helped me in my case. I wanted to give a default value in O2m field everytime new line is added. Thanks gave you +1.

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Adrien
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First of all, you should not call your Many2one field "name" but rather "name_id" so it does not conflict with the Char field "name" of you car.rental.list

----- Related field -----

Using related fields will not only set the default value but it will force the value to be the one of the related field.

So using related fields you can not have different values for your car.rental.list and vehicle.tools. 

If it is what you want, then it is ok :)

-------

If you want to be able to change after the default value in car.rental.list :

1. You can add to your onchange method :

    @api.onchange('name_id')
    def onchange_name_id(self):
        self.price=self.name_id.price
        self.name = self.name_id.name

=> this will set the values when you select your Many2one 'name_id' field in the form of the car.rental.list

if you are somehow setting the value of the Many2one field in another way (e.g. programaticcaly in some python function) you can then call yourself the onchange_name function, for example :

self.name_id = some_name

self.onchange_name_id()

Cheers




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