Class: ArOuterJoins::Join

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass) ⇒ Join

Returns a new instance of Join.



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# File 'lib/ar_outer_joins/join.rb', line 5

def initialize(klass)
  @klass = klass
end

Instance Attribute Details

#klass ⇒ Object (readonly)

Returns the value of attribute klass.



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# File 'lib/ar_outer_joins/join.rb', line 3

def klass
  @klass
end

Instance Method Details

#apply(*args) ⇒ Object 



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# File 'lib/ar_outer_joins/join.rb', line 22

def apply(*args)
  klass.joins(generate(*args))
end

#generate(*args) ⇒ Object 



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# File 'lib/ar_outer_joins/join.rb', line 9

def generate(*args)
  args.flatten.compact.map do |arg|
    if arg.is_a?(Hash)
      arg.map do |key, value|
        association = klass.reflect_on_association(key)
        generate(key) + Join.new(association.klass).generate(value)
      end
    else
      JoinBuilder.new(klass.reflect_on_association(arg)).build
    end
  end
end