Module: Scrooge::Optimizations::Associations::SingletonMethods

Defined in:
lib/optimizations/associations/macro.rb

Constant Summary collapse

@@preloadable_associations = 
{}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(base) ⇒ Object 



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# File 'lib/optimizations/associations/macro.rb', line 31

def self.extended( base )
  eigen = class << base; self; end
  # not used at present
end

Instance Method Details

#preload_scrooge_associations(result_set, callsite_sig) ⇒ Object 



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# File 'lib/optimizations/associations/macro.rb', line 36

def preload_scrooge_associations(result_set, callsite_sig)
  scrooge_preloading_exclude do
    callsite_associations = scrooge_callsite(callsite_sig).associations.to_a
    preload_associations(result_set, callsite_associations) unless callsite_associations.empty?
  end
end

#preloadable_associations ⇒ Object

Let’s not preload polymorphic associations or collections



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# File 'lib/optimizations/associations/macro.rb', line 53

def preloadable_associations
  @@preloadable_associations[self.name] ||= 
    reflect_on_all_associations.reject{|a| a.options[:polymorphic] || a.macro == :has_many}.map(&:name)
end

#scrooge_preloading_exclude ⇒ Object 



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# File 'lib/optimizations/associations/macro.rb', line 43

def scrooge_preloading_exclude
  unless Thread.current[:scrooge_preloading]
    Thread.current[:scrooge_preloading] = true
    yield
    Thread.current[:scrooge_preloading] = false
  end
end