Class: Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/undecided/converter.rb

Overview

Convert data to required type

Class Method Summary collapse

Class Method Details

.error(value) ⇒ Object

Raises:



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# File 'lib/undecided/converter.rb', line 38

def self.error(value)
  raise Undecided::DeciderError, "#{value} Is not a correct value, " \
        'insert (1 or 0) or (true or false)'
end

.hash_values_to_bool(values) ⇒ Object

Convert every value from hash to a boolean value



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# File 'lib/undecided/converter.rb', line 21

def self.hash_values_to_bool(values)
  raise 'Only hash values' unless values.is_a? Hash
  values.map { |k, v| [k, to_bool(v)] }.to_h
end

.process_values(values) ⇒ Object 



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# File 'lib/undecided/converter.rb', line 3

def self.process_values(values)
  values = to_symbol(values)
  hash_values_to_bool(values)
end

.replacing_variables(rule, values) ⇒ Object

Replaces variables from rules with values



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# File 'lib/undecided/converter.rb', line 44

def self.replacing_variables(rule, values)
  process_values(values).each do |k, v|
    rule.gsub! k.to_s, v.to_s
  end
  rule
end

.to_bool(value) ⇒ Object

Transform value to boolean



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# File 'lib/undecided/converter.rb', line 27

def self.to_bool(value)
  # if boolean return value
  return value if Undecided::Evaluator.bool?(value)
  # transform integer value to boolean
  error(value) unless [0, 1].include? value
  !value.to_i.zero?
rescue => e
  puts e.message
  error value
end

.to_symbol(value) ⇒ Object

Convert array, hash’s keys or solo values to symbol



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# File 'lib/undecided/converter.rb', line 9

def self.to_symbol(value)
  if value.is_a?(Array)
    value.map(&:to_sym)
  elsif value.is_a? Hash
    value.map { |k, v| [k.to_sym, v] }.to_h
  else
    # for String and Number solo values
    value.to_s.to_sym
  end
end