Odoo is the world's easiest all-in-one management software.
It includes hundreds of business apps:
- CRM
- e-Commerce
- Účetnictví
- Sklad
- PoS
- Projekty
- MRP
This question has been flagged
7
Odpovědi
16528
Zobrazení
Hi,
It is simple as the name suggests. Means its a field, related to another model through a field on the same model.
We use them normally when we need to fetch some value from another model (say model_B) and we already have one field in current model (say model_A) which is linked to that model (for eg. a many2one field). So through that many2one field we can reach model_B and fetch the value to our related field.
For eg:
Suppose I want to show qty_available of a product on the sale order line. So through the product_id (many2one) field you can reach product.template model and fetch the qty_available. Here the qty_avail field is related to product_id.qty_available
class sale_order_line(models.Model):
_inherit = "sale.order.line"
qty_avail = fields.Float(related="product_id.qty_available", string="Quantity Available", readonly=True)
One thing to note is that, both the field types should be same. That means here the qty_avail and qty_available
Hope this helps!
Perfect Thank You Akhil :)
HI sir, product_id (many2one) field can reach product.product , not yet reach product.template.
In sort ,it use the HAS-A relation in between entity , and help in simplifying your task .
the Changes will always reflect in both the related model simultaneously .
Lets' take an example:
if i have a model student.student and student.student have a Many2one field associated with res.partner .
At the time of creation :
if you will make the name and email as the related field , it will automatically fill the data ( name , email) in the student.student from res.partner
This save the end-user time.
At time of updation :
in future if you want to change the email and also want to synchronize the records between entity , here related field will also help you.
if you change the email and name here, it will automatically update the email , name of res.partner also .
try these link for reference :
http://stackoverflow.com/questions/3887675/what-is-the-use-of-related-fields-in-openerp
http://stackoverflow.com/questions/33869087/how-to-use-related-fields-fields-related-in-odoo-8
thank you sharma
That example of using a related field on product.qty_available doesn't work, at least not in Odoo 8. Field qty_available is a function field, and the related field is not updated properly.
The Related field is used to fetch another field from the relational table.
Enjoying the discussion? Don't just read, join in!
Create an account today to enjoy exclusive features and engage with our awesome community!
Přihlásit se