Module: ActiveRecord::UpdatedAt::Relation

Defined in:
lib/active_record/updated_at/relation.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/active_record/updated_at/relation.rb', line 4

def self.included(base)
  base.class_eval do
    # We were originally using `prepend` to inject this behavior
    # directly into the `update_all` method but this was causing
    # `SystemStackError` exceptions when loaded alongside other
    # gems like `newrelic_rpm` which uses alias method chains.
    #
    # It's unlikely NewRelic will change their API anytime soon
    # since they have to support older versions of Ruby which do
    # not support `prepend` so we'll use this deprecated style
    # of method injection.
    #
    # Newer versions of ActiveRecord have already deprecated the
    # old `alias_method_chain` method so we're doing it manually
    # here to avoid deprecation warnings.
    alias_method :update_all_without_updated_at, :update_all
    alias_method :update_all, :update_all_with_updated_at
  end
end

Instance Method Details

#update_all_with_updated_at(query, *args, &block) ⇒ Object 



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# File 'lib/active_record/updated_at/relation.rb', line 24

def update_all_with_updated_at(query, *args, &block)
  attribute_exists = column_names.include?("updated_at")
  already_specified = Array(query).flatten.grep(/\bupdated_at\b/).any?
  enabled = UpdatedAt.enabled?
  updated_at = Time.current

  if attribute_exists && !already_specified && enabled
    case query
    when Array
      query.first << ", updated_at = ?"
      query << updated_at
    when Hash
      query[:updated_at] = updated_at
    when String
      query = ["#{query}, updated_at = ?", updated_at]
    end
  end

  update_all_without_updated_at(query, *args, &block)
end