Class: Fiona7::Prefetch::ObjPrefetch

Inherits:
Object
  • Object
show all
Defined in:
lib/fiona7/prefetch/obj_prefetch.rb

Instance Method Summary collapse

Constructor Details

#initialize(klass, prefetch_ids = []) ⇒ ObjPrefetch

Returns a new instance of ObjPrefetch.



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# File 'lib/fiona7/prefetch/obj_prefetch.rb', line 6

def initialize(klass, prefetch_ids=[])
  self.klass          = klass
  self.prefetched_ids = Set.new
  self.object_id_map  = {}

  self.prefetch_objects(prefetch_ids)
end

Instance Method Details

#find_many(ids) ⇒ Object

Returns an array with objects for given IDs. The array is ordered according to the IDs given. For missing objects the array is filled with nil values



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# File 'lib/fiona7/prefetch/obj_prefetch.rb', line 22

def find_many(ids)
  self.prefetch_objects(ids)
  ids.map { |id| self.object_id_map[id.to_i] }
end

#find_one(id) ⇒ Object

Returns an object with given ID or nil if no matching object found



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# File 'lib/fiona7/prefetch/obj_prefetch.rb', line 15

def find_one(id)
  self.find_many([id]).first
end