Question

assuming i have a filter (which is being invoked before every action), how can I pass an object, which is fetched from the database in it to every view? I do not want to refactor
all my methods.

To vizualize:

I have a filter that sets an object, for example:

def god = God.find(1)

and I have 100 controllers, for each controllers 100 methods, which is 100 * 100 views.
Usually in the action you write something like :

def index = {
 def something = Something.find(1)
 [something: something]
}

the question is how can I pass God object as well, without having to modify the return array to

[something: something, god: god]

Answer 1

You would want an after interceptor type to your filter for that. after takes model as an argument to the closure, and you can add god to that model.

myFilter(controller:'*', action:'*') {
    after = { model ->
        def god = God.find(1)
        model.god = god
    }
}

Here’s the relevant docs section.