module GoogleVisualr::ParamHelpers
Public Instance Methods
js_parameters(options)
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# File lib/google_visualr/param_helpers.rb, line 12 def js_parameters(options) return "" if options.nil? attributes = options.collect { |(key, value)| "#{key}: #{typecast(value)}" } "{" + attributes.join(", ") + "}" end
stringify_keys!(options)
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# File lib/google_visualr/param_helpers.rb, line 5 def stringify_keys!(options) options.keys.each do |key| options[key.to_s] = options.delete(key) end options end
typecast(value, type = nil)
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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.
# File lib/google_visualr/param_helpers.rb, line 28 def typecast(value, type = nil) case when value.is_a?(String) return value.to_json when value.is_a?(Integer) || value.is_a?(Float) return value when value.is_a?(TrueClass) || value.is_a?(FalseClass) return "#{value}" when value.is_a?(DateTime) || value.is_a?(Time) if type == "time" return "new Date(0, 0, 0, #{value.hour}, #{value.min}, #{value.sec})" else return "new Date(#{value.year}, #{value.month-1}, #{value.day}, #{value.hour}, #{value.min}, #{value.sec})" end when value.is_a?(Date) return "new Date(#{value.year}, #{value.month-1}, #{value.day})" when value.nil? return "null" when value.is_a?(Array) return "[" + value.map{|v| typecast(v) }.join(',') + "]" when value.is_a?(Hash) return js_parameters(value) else return value end end