Module: FastTimestamp

Defined in:
lib/fast_timestamp.rb

Overview

Expects a ::Timestamp ActiveRecord class with timestampable_type, timestampable_id, key:string, and stamped_at:datetime.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/fast_timestamp.rb', line 3

def self.included(base)
  base.class_eval { after_destroy :fast_destroy_timestamps }
end

Instance Method Details

#fast_destroy_timestamps ⇒ Object 



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# File 'lib/fast_timestamp.rb', line 37

def fast_destroy_timestamps
  ::Timestamp.destroy_all :timestampable_type => self.class.base_class.name, :timestampable_id => id
  true
end

#set_timestamp!(key, time) ⇒ Object 



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# File 'lib/fast_timestamp.rb', line 29

def set_timestamp!(key, time)
  raise "Can't timestamp new records" if new_record?
  transaction do
    t = ::Timestamp.find_or_create_by_timestampable_type_and_timestampable_id_and_key(self.class.base_class.name, id, key.to_s)
    t.update_attribute :stamped_at, time
  end
end

#timestamp!(key) ⇒ Object 



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# File 'lib/fast_timestamp.rb', line 7

def timestamp!(key)
  set_timestamp! key, Time.zone.now
end

#timestamp_for(key) ⇒ Object

returns a Time object



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# File 'lib/fast_timestamp.rb', line 23

def timestamp_for(key)
  if t = ::Timestamp.find_by_timestampable_type_and_timestampable_id_and_key(self.class.base_class.name, id, key.to_s)
    t.read_attribute :stamped_at
  end
end

#timestamped?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fast_timestamp.rb', line 17

def timestamped?(key)
  raise "Can't check timestamps on new record" if new_record?
  ::Timestamp.exists? :timestampable_type => self.class.base_class.name, :timestampable_id => id, :key => key.to_s
end

#untimestamp!(key) ⇒ Object 



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# File 'lib/fast_timestamp.rb', line 11

def untimestamp!(key)
  if t = ::Timestamp.find_by_timestampable_type_and_timestampable_id_and_key(self.class.base_class.name, id, key.to_s)
    t.destroy
  end
end