How do you unwire an action in Nitrogen?

Question

In Nitrogen, the Erlang web framework, you wire actions like this:

wf:wire(send_message, #event { type=click, postback=send_message })

but if after that you run

wf:wire(send_message, #event { type=click, postback=send_message2 }),

then you get the action wired twice.

How do you unwire the previous action or all actions of an element?

Answer 1

Since events in nitrogen are bound using jquery's bind method. You can use unbind to unbind them. There isn't currently a nitrogen api to unbind an event but you could output the javascript code to unbind it yourself if you so wished.

see action_event.erl for an example of how the binding javascript is output. You can create a similar action/event that removes the binding.