Odoo警告弹出错误

Question

In odoo10, I wrote a @api.onchange function on change of name which return warning popup if name already in database, so As I click on save button after giving input in name field then It returning a warning popup but also form saving on background which I don't want.

So, what is the actual problem here? Please find attached screenshot below. Thanks

Answer 1

If the problem is that Odoo lets you save the record after the warning is shown (although the name already exists in the database), you have to add a SQL constraint to your model, because the warning in the onchange method does not prevent users from storing the records.

_sql_constraints = [
    ('name_unique', 'unique(name)',
    'There is another record with the same name stored in the database!')
]

Of course you can keep your onchange warning in order to let the user know that if they keep that name, they're getting an error when saving the record.