Module: Core::Models::Concerns::Historizable::ClassMethods

Defined in:
lib/core/models/concerns/historizable.rb

Overview

Submodule holding all the static methods add to the current subclass.

Author:

Instance Method Summary collapse

Instance Method Details

#historize(field) ⇒ Object

Takes the Mongoid declared field and creates the callbacks to intercept any value change and add it to the history.



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# File 'lib/core/models/concerns/historizable.rb', line 43

def historize(field)

  unless relations.key?('history')
    embeds_many :history, class_name: 'Core::Models::Event'
  end

  after_initialize do |doc|
    add_history(field: field.name, from: nil, to: doc[field.name])
  end

  after_save do |doc|
    if doc.changed_attributes.key?(field.name)
      from = doc.changed_attributes[field.name]
      add_history(field: field.name, from: from, to: doc[field.name])
    end
  end
end