Class: ActionController::Base

Inherits:
Object
  • Object
show all
Defined in:
app/controllers/rails_ext.rb

Direct Known Subclasses

ApplicationController

Instance Method Summary collapse

Instance Method Details

#find_selected(name) ⇒ Object

Returns the selected object from a select_pane and defines the selected? method on it to return true (so that define_selected will work properly



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# File 'app/controllers/rails_ext.rb', line 29

def find_selected(name)
  array = instantiate_array_from_hashes(@params[name])
  selected = @params["#{name}_selected"]
  selected_object = array.find { |o| o.class.name == selected }
  unless selected_object
    Log.error "No selected object among '#{name}'"
    Log.error "params: #{@params[name].inspect}"
    Log.error "array: #{array.inspect}"
    Log.error "selected: #{selected}"
    raise "No selected object found. See log for details."
  end
  def selected_object.selected?
    true
  end
  selected_object
end

#instantiate_array_from_hashes(class_name_2_attr_hash_hash) ⇒ Object

Instantiates an Array of object from class_name_2_attr_hash_hash which should be a hash where the keys are class names and the values a Hash containing => attr_value pairs.



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# File 'app/controllers/rails_ext.rb', line 8

def instantiate_array_from_hashes(class_name_2_attr_hash_hash)
  result = []
  class_name_2_attr_hash_hash.each do |class_name, attr_hash|
    result << instantiate_from_hash(eval(class_name), attr_hash)
  end
  result
end

#instantiate_from_hash(clazz, attr_hash) ⇒ Object 



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# File 'app/controllers/rails_ext.rb', line 16

def instantiate_from_hash(clazz, attr_hash)
  object = clazz.new
  attr_hash.each do |attr_name, attr_value|
    setter = attr_name[1..-1] + "="
    object.__send__(setter.to_sym, attr_value) if object.respond_to?(setter.to_sym)
  end
  object
end