Rails: Create method available in all views and all models
- by smotchkkiss
I'd like to define a method that is available in both my views and my models
Say I have a view helper:
def foo(s)
"hello #{s}"
end
A view might use the helper like this:
<div class="data"><%= foo(@user.name) %></div>
However, this <div> will be updated with a repeating ajax call. I'm using a to_json call in a controller returns data like so:
render :text => @item.to_json(:only => [...], :methods => [:foo])
This means, that I have to have foo defined in my Item model as well:
class Item
def foo
"hello #{name}"
end
end
It'd be nice if I could have a DRY method that could be shared in both my views and my models.
Usage might look like this:
Helper
def say_hello(s)
"hello #{s}"
end
User.rb model
def foo
say_hello(name)
end
Item.rb model
def foo
say_hello(label)
end
View
<div class="data"><%= item.foo %></div>
Controller
def observe
@items = item.find(...)
render :text => @items.to_json(:only=>[...], :methods=>[:foo])
end
IF I'M DUMB,
please let me know.
I don't know the best way to handle this, but I don't want to completely go against best-practices here.
If you can think of a better way, I'm eager to learn!
