Class: GenericAjaxController

Inherits:
ApplicationController show all
Defined in:
app/controllers/generic_ajax_controller.rb

Instance Method Summary collapse

Methods inherited from ApplicationController

#robot?

Instance Method Details

#update_model_with_value ⇒ Object 



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# File 'app/controllers/generic_ajax_controller.rb', line 5

def update_model_with_value
  model_name = params[:model]
  id = params[:id]
  attribute = params[:attribute]
  update_value = params[:value]

# This is an example of what we are doing for an input of User, 1, course_tools_view, "links"
#    instance = "User".constantize.find(1)
#    instance.course_tools_view = "links"

  model = model_name.constantize
  instance = model.find_by_id(id)
  if (instance.nil?)
    return render :text => "#{model_name} does not have a row with an id of #{id}"
  end

  unless instance.attributes.has_key? attribute
    return render :text => "#{model_name} does not have the attribute #{attribute}"
  end

  unless can? :update, instance
    return render :text => "Do not have permission to modify #{model_name}"
  end

  result = instance.update_attribute(attribute, update_value)

  if result
    return render :text => "Success"
  else
    return render :text => "Failure on update_attribute"
  end


end