Class: ParameterFilter::CompiledFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/rusen/utils/parameter_filter.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(regexps, blocks) ⇒ CompiledFilter

Returns a new instance of CompiledFilter.



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# File 'lib/rusen/utils/parameter_filter.rb', line 41

def initialize(regexps, blocks)
  @regexps = regexps
  @blocks  = blocks
end

Instance Attribute Details

#blocks ⇒ Object (readonly)

Returns the value of attribute blocks.



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# File 'lib/rusen/utils/parameter_filter.rb', line 39

def blocks
  @blocks
end

#regexps ⇒ Object (readonly)

Returns the value of attribute regexps.



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# File 'lib/rusen/utils/parameter_filter.rb', line 39

def regexps
  @regexps
end

Class Method Details

.compile(filters) ⇒ Object 



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# File 'lib/rusen/utils/parameter_filter.rb', line 19

def self.compile(filters)
  return lambda { |params| params.dup } if filters.nil? || filters.empty?

  strings, regexps, blocks = [], [], []

  filters.each do |item|
    case item
      when Proc
        blocks << item
      when Regexp
        regexps << item
      else
        strings << item.to_s
    end
  end

  regexps << Regexp.new(strings.join('|'), true) unless strings.empty?
  new regexps, blocks
end

Instance Method Details

#call(original_params) ⇒ Object 



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# File 'lib/rusen/utils/parameter_filter.rb', line 46

def call(original_params)
  filtered_params = {}

  original_params.each do |key, value|
    if regexps.any? { |r| key =~ r }
      value = FILTERED
    elsif value.is_a?(Hash)
      value = call(value)
    elsif value.is_a?(Array)
      value = value.map { |v| v.is_a?(Hash) ? call(v) : v }
    elsif blocks.any?
      key = key.dup
      value = value.dup if value.duplicable?
      blocks.each { |b| b.call(key, value) }
    end

    filtered_params[key] = value
  end

  filtered_params
end