[Rails] Rendering in ApplicationController fails.

Hi experts,

Just trying to see if anyone on this list can answer my question:

http://stackoverflow.com/questions/5545877/rendering-in-applicationcontroller-fails

Basically, the problem is as follows:

* I have several methods such as render_not_found, render_internal_error
etc. in ApplicationController. Each of these goes something like this:

rescue_from ActiveRecord::RecordInvalid do |err|
render_bad_request err.message
end

def render_bad_request(message="bad request")
respond_to do |wants|
wants.json {
errmsg = {:error => 'failure', :message => message }
render :status => 400, :json => errmsg and return
}
end
end

And in my actual controller

def create
@resource.transaction do
# a lot of stuff...
end

render_created @resource, :location => build_link(@resource)
end

The problem is, whenever an ActiveRecord::RecordInvalid (or any other
exception I am rescuing from) is raised, the render_* method in
ApplicationController runs, but it then continues execution in the
action as though no render happened (so it leads to DoubleRender)

Any way I could fix this / rewrite the rendering methods?

Best,
Radhesh

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