Module: ActiveRecord::Events

Defined in:
lib/active_record/events.rb,
lib/active_record/events/naming.rb,
lib/active_record/events/version.rb

Defined Under Namespace

Classes: Naming

Constant Summary collapse

VERSION = 
'2.1.0'

Instance Method Summary collapse

Instance Method Details

#has_event(name, options = {}) ⇒ Object 



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# File 'lib/active_record/events.rb', line 11

def has_event(name, options = {})
  naming = Naming.new(name, options)

  define_method("#{naming.predicate}?") do
    self[naming.field].present?
  end

  define_method("#{naming.inverse_predicate}?") do
    self[naming.field].blank?
  end

  define_method(naming.action) do
    touch(naming.field) if self[naming.field].blank?
  end

  define_method("#{naming.action}!") do
    touch(naming.field)
  end

  define_singleton_method(naming.scope) do
    where(arel_table[naming.field].not_eq(nil))
  end

  define_singleton_method(naming.inverse_scope) do
    where(arel_table[naming.field].eq(nil))
  end
end

#has_events(*names) ⇒ Object 



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# File 'lib/active_record/events.rb', line 6

def has_events(*names)
  options = names.extract_options!
  names.each { |n| has_event(n, options) }
end