Contents

module Thoth
  module Rails::Model

    def self.included(base)
      base.send :extend, ClassMethods
    end

    module ClassMethods
      def log_events(options={})
        defaults = {on: [:create, :update, :destroy]}
        options = options.reverse_merge!(defaults)

        options[:on] = Array(options[:on])
        options[:only] = Array(options[:only])

        class_attribute :thoth_options
        self.thoth_options = options

        after_create  :thoth_log_create if options[:on].include?(:create)
        before_update :thoth_log_update if options[:on].include?(:update)
        after_destroy :thoth_log_destroy if options[:on].include?(:destroy)
      end
    end

    def thoth_log_create
      return unless self.class.thoth_options[:on].include?(:create)
      thoth_log_model(:create)
    end

    def thoth_log_update
      return unless self.class.thoth_options[:on].include?(:update)

      except_options = self.class.thoth_options[:except]
      only_options = if except_options.present?
        self.class.columns.map(&:name) - except_options.map(&:to_s)
      else
        self.class.thoth_options[:only]
      end

      if only_options.empty? || !(only_options.map(&:to_s) & changed_attribute_names_to_save).empty?
        thoth_log_model(:update)
      end
    end

    def thoth_log_destroy
      return unless self.class.thoth_options[:on].include?(:destroy)
      thoth_log_model(:destroy)
    end

    def thoth_log_model(action)
      Thoth.logger.log("#{self.class.name} #{action}", changes: changes_to_log, attributes: attributes)
    end

    def changes_to_log
      has_changes_to_save? ? changes_to_save : saved_changes
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
thoth-3.0.0	lib/thoth/rails/model.rb
thoth-2.0.0	lib/thoth/rails/model.rb