Odoo check field in other module

Question

How can we check in method if field is empty. How this code should look correctly.

i hope try to made my point clear.

def method(self, vals):
    if vals.get("field" == empty)
    use my logic
    if not empty use data that was already there.
    and if that field is in other model , how can i reach it.

Answer 1

Try this:

def method(self):
    if vals.get("field_name", False): 
        # Code if is not empty
    else:  
        # Code if is empty

Answer 2

You can try following code, in which first check if key is in vals or not. if key is available then check value is set or not.

def method(self, vals):
    if vals.has_key('field') and not vals.get('field',False):
        print "if logic"
    else:
        print "else logic"

If field is not empty and field is in other model then you should try with active_model.

You can pass active_model in context from calling method, based on that you can browse record or do other operation.

Ex:

def method(self, vals):
    if vals.has_key('field') and not vals.get('field',False):
        print "if logic"
    else:
        model=self._context.get('active_model')
        self.env[model].browse(model)
        print "else logic"

self.with_context({'active_model':'model'}).method(vals)

Using with_context user can pass context & based on context value you can easily get active model dynamically.

This may help you.