Class: EffectiveLogging::ActiveRecordLogger

Inherits:
Object
  • Object
show all
Defined in:
lib/effective_logging/active_record_logger.rb

Constant Summary collapse

BLANK = 
"''"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, options = {}) ⇒ ActiveRecordLogger

Returns a new instance of ActiveRecordLogger.

Raises:



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# File 'lib/effective_logging/active_record_logger.rb', line 7

def initialize(object, options = {})
  raise ArgumentError.new('options must be a Hash') unless options.kind_of?(Hash)

  @object = object
  @resource = Effective::Resource.new(object)

  @logger = options.delete(:logger) || object
  @depth = options.delete(:depth) || 0
  @include_associated = options.fetch(:include_associated, true)
  @include_nested = options.fetch(:include_nested, true)
  @options = options

  raise ArgumentError.new('logger must respond to logged_changes') unless @logger.respond_to?(:logged_changes)
end

Instance Attribute Details

#depth ⇒ Object

Returns the value of attribute depth.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def depth
  @depth
end

#include_associated ⇒ Object

Returns the value of attribute include_associated.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def include_associated
  @include_associated
end

#include_nested ⇒ Object

Returns the value of attribute include_nested.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def include_nested
  @include_nested
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def logger
  @logger
end

#object ⇒ Object

Returns the value of attribute object.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def object
  @object
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def options
  @options
end

#resource ⇒ Object

Returns the value of attribute resource.



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# File 'lib/effective_logging/active_record_logger.rb', line 3

def resource
  @resource
end

Instance Method Details

#created! ⇒ Object 



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# File 'lib/effective_logging/active_record_logger.rb', line 40

def created!
  log('Created', details: applicable(instance_attributes))
end

#destroyed! ⇒ Object 



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# File 'lib/effective_logging/active_record_logger.rb', line 36

def destroyed!
  log('Deleted', details: applicable(instance_attributes))
end

#execute! ⇒ Object 



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# File 'lib/effective_logging/active_record_logger.rb', line 22

def execute!
  @logged = false

  if new_record?(object)
    created!
  elsif destroyed_record?(object)
    destroyed!
  else
    updated!
  end

  logged?
end

#log_nested_resources! ⇒ Object 



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# File 'lib/effective_logging/active_record_logger.rb', line 69

def log_nested_resources!
  return unless include_nested

  # Log changes on all accepts_as_nested_parameters has_many associations
  resource.nested_resources.each do |association|
    title = association.name.to_s.singularize.titleize

    Array(object.send(association.name)).each_with_index do |child, index|
      next unless child.present?

      child_options = options.merge(logger: logger, depth: depth+1, prefix: "#{title} #{index} - #{child} - ", include_associated: include_associated, include_nested: include_nested)
      child_options = child_options.merge(child.log_changes_options) if child.respond_to?(:log_changes_options)

      @logged = true if ::EffectiveLogging::ActiveRecordLogger.new(child, child_options).execute!
    end
  end
end

#log_resource_changes! ⇒ Object 



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# File 'lib/effective_logging/active_record_logger.rb', line 51

def log_resource_changes!
  applicable(resource.instance_changes).each do |attribute, (before, after)|
    if object.respond_to?(:log_changes_formatted_value)
      before = object.log_changes_formatted_value(attribute, before) || before
      after = object.log_changes_formatted_value(attribute, after) || after
    end

    before = before.to_s if before.kind_of?(ActiveRecord::Base) || before.kind_of?(FalseClass)
    after = after.to_s if after.kind_of?(ActiveRecord::Base) || after.kind_of?(FalseClass)

    attribute = if object.respond_to?(:log_changes_formatted_attribute)
      object.log_changes_formatted_attribute(attribute)
    end || attribute.titleize

    log("#{attribute}: #{before.presence || BLANK} → #{after.presence || BLANK}", details: { attribute: attribute, before: before, after: after })
  end
end

#updated! ⇒ Object 



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# File 'lib/effective_logging/active_record_logger.rb', line 44

def updated!
  log_resource_changes!
  log_nested_resources!

  log('Updated', details: applicable(instance_attributes)) if logged? && depth == 0
end