Class: TechnicalAnalysis::Validation

Inherits:
Object
  • Object
show all
Defined in:
lib/technical_analysis/helpers/validation.rb

Defined Under Namespace

Classes: ValidationError

Class Method Summary collapse

Class Method Details

.validate_date_time_key(data, date_time_key = :date_time) ⇒ Object 



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# File 'lib/technical_analysis/helpers/validation.rb', line 24

def self.validate_date_time_key(data, date_time_key=:date_time)
  unless data.all? { |row| row.keys.include? date_time_key }
    raise ValidationError.new "Dataset must include '#{date_time_key}' field with timestamps"
  end
end

.validate_length(data, size) ⇒ Object 



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# File 'lib/technical_analysis/helpers/validation.rb', line 12

def self.validate_length(data, size)
  raise ValidationError.new "Not enough data for that period" if data.size < size
end

.validate_numeric_data(data, *keys) ⇒ Object 



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# File 'lib/technical_analysis/helpers/validation.rb', line 4

def self.validate_numeric_data(data, *keys)
  keys.each do |key|
    unless data.all? { |v| v[key].is_a? Numeric }
      raise ValidationError.new "Invalid Data. '#{key}' is not valid price data."
    end
  end
end

.validate_options(options, valid_options) ⇒ Object 



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# File 'lib/technical_analysis/helpers/validation.rb', line 16

def self.validate_options(options, valid_options)
  raise ValidationError.new "Options must be a hash." unless options.respond_to? :keys
  raise ValidationError.new "No valid options provided." unless valid_options

  return true if (options.keys - valid_options).empty?
  raise ValidationError.new "Invalid options provided. Valid options are #{valid_options.join(", ")}"
end