Volt::ModelController proxies any missing methods to its model. Sometimes you need to store additional data reactively in the controller outside of the model. (Though often you may want to consider making another controller). In this case, you can add a
reactive_accessor. These behave just like
attr_accessor except that the values assigned and returned are tracked reactively.
module Main class Contacts < Volt::ModelController reactive_accessor :query end end
Now, from the view, we can bind to
query while also changing in and out the model. When
query is accessed it tracks that it was accessed and will rerun any computations when it changes.