how to get database value from orm and field name get from string in odoo 8

Question

I get field name string from configuration.

para = 'partner_id.name'
account.invoice(281088,).para 
*** AttributeError: 'account.invoice' object has no attribute 'para'

The system cannot know database field name exactly.It comes from user configuration.

Answer 1

In your case you can split the provided parameter and use getattr like this

para = 'partner_id.name'
attributes = para.split('.')
value = account.invoice(281088)
for attribute in attributes:
    if hasattr(value, attribute):
        value = getattr(value, attribute)
    else:
        return False
return value

attributes = para.split('.')

This splits user supplied parameter. In this case attributes value will become ['partner_id', 'name']

value = account.invoice(281088)

Assign account.invoice to value

for attribute in attributes:
    if hasattr(value, attribute):
        value = getattr(value, attribute)
    else:
        return False

Loop through our attributes and check if value has that attribute. If so, get its value or return else otherwise.

return value

Return the finale value which will be partner name in this case