Class: Hpath::Filter

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

Instance Method Summary collapse

Constructor Details

#initialize(filter_hash) ⇒ Filter

Returns a new instance of Filter.



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# File 'lib/hpath/filter.rb', line 3

def initialize(filter_hash)
  @type = filter_hash.keys.first
  
  if @type == :and_filter || @type == :or_filter
    @children = filter_hash.values.first.map do |element|
      Hpath::Filter.new(element)
    end
  elsif @type == :key_value_filter
    @key = filter_hash[:key_value_filter][:key]
    @value = filter_hash[:key_value_filter][:value]
  end
end

Instance Method Details

#applies?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hpath/filter.rb', line 16

def applies?(object)
  if @type == :and_filter
    @children.all? { |child_filter| child_filter.applies?(object) }
  elsif @type == :or_filter
    @children.any? { |child_filter| child_filter.applies?(object) }
  elsif @type == :key_value_filter
    if object.is_a?(Hash) && (@value.is_a?(String) || @value.is_a?(Symbol))
      object[@key.to_s] == @value.to_s || object[@key.to_sym] == @value.to_s ||
      object[@key.to_s] == @value.to_sym || object[@key.to_sym] == @value.to_sym
    else
      if object.respond_to(@key)
        object.send(@key) == @value
      end
    end
  end
end