Class: ActiveRecordSamplooper::Samplooper

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass) ⇒ Samplooper

Returns a new instance of Samplooper.



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# File 'lib/active_record_samplooper.rb', line 18

def initialize(klass)
  self.klass = klass
  init!
end

Instance Attribute Details

#id_store ⇒ Object

Returns the value of attribute id_store.



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# File 'lib/active_record_samplooper.rb', line 15

def id_store
  @id_store
end

#klass ⇒ Object

Returns the value of attribute klass.



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# File 'lib/active_record_samplooper.rb', line 15

def klass
  @klass
end

#rest ⇒ Object

Returns the value of attribute rest.



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# File 'lib/active_record_samplooper.rb', line 15

def rest
  @rest
end

Instance Method Details

#find(id) ⇒ Object 



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# File 'lib/active_record_samplooper.rb', line 24

def find(id)
  klass.find(id)
rescue ActiveRecord::RecordNotFound => e
  raise Gone, id
end

#init! ⇒ Object 



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# File 'lib/active_record_samplooper.rb', line 48

def init!
  self.id_store = klass.pluck(:id).shuffle!
  self.rest = id_store.dup
end

#loop ⇒ Object 



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# File 'lib/active_record_samplooper.rb', line 42

def loop
  reset! if rest.blank?
  sample
end

#pick ⇒ Object 



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# File 'lib/active_record_samplooper.rb', line 36

def pick
  return if rest.blank?
  find(rest.shift)
end

#reset! ⇒ Object 



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# File 'lib/active_record_samplooper.rb', line 54

def reset!
  self.rest = id_store.dup
end

#sample ⇒ Object 



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# File 'lib/active_record_samplooper.rb', line 31

def sample
  find(id_store.sample)
end