Module: Daru::View::ParamHelpers

Included in:
JsHelpers
Defined in:
lib/daru/data_tables/generate_js/param_helpers.rb

Instance Method Summary collapse

Instance Method Details

#js_parameters(options) ⇒ Object 



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# File 'lib/daru/data_tables/generate_js/param_helpers.rb', line 6

def js_parameters(options)
  return '' if options.nil?

  attributes = options.collect { |(key, value)| "#{key}: #{typecast(value)}" }
  '{' + attributes.join(', ') + '}'
end

#typecast(value, type = nil) ⇒ Object

If the column type is ‘string’ , the value should be a string. If the column type is ‘number’ , the value should be a number. If the column type is ‘boolean’ , the value should be a boolean. If the column type is ‘date’ , the value should be a Date object. If the column type is ‘datetime’ , the value should be a DateTime or Time object. If the column type is ‘timeofday’ , the value should be an array of three or four numbers: [hour, minute, second, optional milliseconds]. Returns an array of strings if given an array Returns ‘null’ when value is nil. Recursive typecasting when value is a hash.

rubocop:disable Metrics/PerceivedComplexity, Metrics/MethodLength rubocop:disable Metrics/CyclomaticComplexity, Metrics/AbcSize



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# File 'lib/daru/data_tables/generate_js/param_helpers.rb', line 27

def typecast(value, type=nil)
  case
  when value.respond_to?(:js_code) && value.js_code?
    value
  when value.is_a?(String)
    value.to_json
  when value.is_a?(Integer) || value.is_a?(Float)
    value
  when value.is_a?(TrueClass) || value.is_a?(FalseClass)
    value.to_s
  when value.is_a?(DateTime) || value.is_a?(Time)
    if type == 'time'
      "new Date(0, 0, 0, #{value.hour}, #{value.min}, #{value.sec})"
    else
      "new Date(#{value.year}, #{value.month-1}, #{value.day}, #{value.hour}, #{value.min}, #{value.sec})"
    end
  when value.is_a?(Date)
    "new Date(#{value.year}, #{value.month-1}, #{value.day})"
  when value.nil?
    'null'
  when value.is_a?(Array)
    '[' + value.map { |v| typecast(v) }.join(',') + ']'
  when value.is_a?(Hash)
    js_parameters(value)
  else
    value
  end
end