Class: Garb::FilterParameters

Inherits:
Object
  • Object
show all
Defined in:
lib/garb/filter_parameters.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FilterParameters

Returns a new instance of FilterParameters.



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# File 'lib/garb/filter_parameters.rb', line 18

def initialize
  self.parameters = []
end

Instance Attribute Details

#parameters ⇒ Object

Returns the value of attribute parameters.



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# File 'lib/garb/filter_parameters.rb', line 16

def parameters
  @parameters
end

Class Method Details

.define_operators(*methods) ⇒ Object 



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# File 'lib/garb/filter_parameters.rb', line 3

def self.define_operators(*methods)
  methods.each do |method|
    class_eval <<-CODE
      def #{method}(field, value)
        @filter_hash.merge!({SymbolOperator.new(field, :#{method}) => value})
      end
    CODE
  end
end

Instance Method Details

#filters(&block) ⇒ Object 



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# File 'lib/garb/filter_parameters.rb', line 22

def filters(&block)
  @filter_hash = {}

  instance_eval &block

  self.parameters << @filter_hash
end

#to_params ⇒ Object 



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# File 'lib/garb/filter_parameters.rb', line 30

def to_params
  value = self.parameters.map do |param|
    param.map do |k,v|
      next unless k.is_a?(SymbolOperator)
      escaped_v = v.to_s.gsub(/([,;\\])/) {|c| '\\'+c}
      "#{URI.encode(k.to_google_analytics, /[=<>]/)}#{CGI::escape(escaped_v)}"
    end.join('%3B') # Hash AND (no duplicate keys), escape char for ';' fixes oauth
  end.join(',') # Array OR

  value.empty? ? {} : {'filters' => value}
end