Question

This is simple enough.

I’m trying to use mongoid’s ‘after_destroy’ callback to do some cleanup operations.

Eg

class Model
    include Mongoid::Document

    after_destroy do |model|
        #Do cleanup stuff
    end
end

There are 2 ways to remove an object from mongo. Delete and Destroy. Destroy runs the callback but Delete Doesn’t.

The model’s routes are declared like this

  resources :models

So my question is, when someone sends a request to models/delete does the destroy method get called or the delete method?

If the latter, then is there any way to run callbacks with the delete function in mongo.

Answer 1

The HTTP method :delete that gets created in resources :models has no direct bearing on the method used in the model. the HTTP delete calls this method:

class ModelsController < ApplicationController

  def delete
    model = Model.find(params[:id])
    model.destroy
    redirect_to models_path, notice: "Model removed"
  end
end

You’re able to change “delete” to “destroy” in the controller to suit your needs.