Class: Elastics::Variables

Inherits:
Struct::Hash show all
Defined in:
lib/elastics/variables.rb

Instance Method Summary collapse

Methods inherited from Struct::Hash

#[], #deep_merge, #deep_merge!, #fetch, #merge, #merge!, #store, #try, #try_delete

Methods included from Struct::Symbolize

#symbolize

Constructor Details

#initialize(*hashes) ⇒ Variables

Returns a new instance of Variables.



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# File 'lib/elastics/variables.rb', line 4

def initialize(*hashes)
  deep_merge! super(), *hashes
end

Instance Method Details

#fetch_nested(key) ⇒ Object

allows to fetch values for tag names like ‘a.3.c’ fetching vars[3]



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# File 'lib/elastics/variables.rb', line 45

def fetch_nested(key)
  unnest(key).inject(self, :fetch)
rescue NoMethodError, KeyError
  # return the milliseconds for :now if it is not set explicitly
  return (Time.now.to_f * 1000).to_i if key == :now
  raise MissingVariableError, "the required #{key.inspect} variable is missing."
end

#fetch_value(key) ⇒ Object

returns Prunable::Value if the value is in VALUES (called from stringified)



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# File 'lib/elastics/variables.rb', line 24

def fetch_value(key)
  val = fetch_nested(key)
  return val if self[:no_pruning].include?(key)
  Prunable::VALUES.include?(val) ? Prunable::Value : val
end

#finalize ⇒ Object 



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# File 'lib/elastics/variables.rb', line 8

def finalize
  self[:index] = self[:index].uniq.join(',') if self[:index].is_a?(Array)
  self[:type]  = self[:type].uniq.join(',')  if self[:type].is_a?(Array)
  # so you can pass :fields => [:field_one, :field_two]
  self[:params!].each{|k,v| self[:params][k] = v.uniq.join(',') if v.is_a?(Array)}
  if self[:page]
    self[:page] = self[:page].to_i
    self[:page] = 1 unless self[:page] > 0
    self[:params][:from] ||= ((self[:page] - 1) * (self[:params][:size] || 10)).ceil unless self[:page] == 1
  else
    self[:page] = 1
  end
  self
end

#store_nested(key, value) ⇒ Object

allows to store keys like ‘a.3.c’ into vars[3]



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# File 'lib/elastics/variables.rb', line 31

def store_nested(key, value)
  var = unnest(key).reverse.inject(value) do |memo,k|
          if k.is_a?(Symbol)
            {k => memo}
          else
            ar = []
            ar[k] = memo
            ar
          end
        end
  deep_merge! var
end