Class: Breathing::ChangeLog

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/breathing/change_log.rb

Instance Method Summary collapse

Instance Method Details

#attributes_for_excel ⇒ Object 



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# File 'lib/breathing/change_log.rb', line 37

def attributes_for_excel
  {
    'change_logs.id' => id,
    'created_at'     => created_at.to_fs(:db),
    'table_name'     => table_name,
    'action'         => action,
    'id'             => transaction_id,
    'diff'           => diff
  }
end

#changed_attribute_columns ⇒ Object 



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# File 'lib/breathing/change_log.rb', line 5

def changed_attribute_columns
  before_data.each.with_object([]) do |(column, value), columns|
    columns << column if after_data[column] != value
  end
end

#data ⇒ Object 



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# File 'lib/breathing/change_log.rb', line 16

def data
  action == 'DELETE' ? before_data : after_data
end

#data_attributes ⇒ Object 



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# File 'lib/breathing/change_log.rb', line 20

def data_attributes
  data_column_names.each.with_object('change_logs.id'         => id,
                                     'change_logs.created_at' => created_at.to_fs(:db),
                                     'action'                 => action,
                                     'id'                     => transaction_id) do |name, hash|
    hash[name] = data[name]
  end
end

#data_column_names ⇒ Object 



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# File 'lib/breathing/change_log.rb', line 11

def data_column_names
  names = before_data.keys.present? ? before_data.keys : after_data.keys
  names.reject { |name| name == 'id' }
end

#diff ⇒ Object 



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# File 'lib/breathing/change_log.rb', line 29

def diff
  return nil if action != 'UPDATE'

  changed_attribute_columns.map do |column_name|
    "#{column_name}: #{before_data[column_name]} -> #{after_data[column_name]}"
  end.join(" \n")
end