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module ChronicDurationAttribute
extend ActiveSupport::Concern
class_methods do
def chronic_duration_attr_reader(virtual_attribute, source_attribute)
define_method(virtual_attribute) do
chronic_duration_attributes[virtual_attribute] || output_chronic_duration_attribute(source_attribute)
end
end
def chronic_duration_attr_writer(virtual_attribute, source_attribute, parameters = {})
chronic_duration_attr_reader(virtual_attribute, source_attribute)
define_method("#{virtual_attribute}=") do |value|
chronic_duration_attributes[virtual_attribute] = value.presence || parameters[:default].presence.to_s
begin
new_value = value.present? ? ChronicDuration.parse(value).to_i : parameters[:default].presence
assign_attributes(source_attribute => new_value)
rescue ChronicDuration::DurationParseError
# ignore error as it will be caught by validation
end
end
validates virtual_attribute, allow_nil: true, duration: true
end
alias_method :chronic_duration_attr, :chronic_duration_attr_writer
end
def chronic_duration_attributes
@chronic_duration_attributes ||= {}
end
def output_chronic_duration_attribute(source_attribute)
value = attributes[source_attribute.to_s]
ChronicDuration.output(value, format: :short) if value
end
end
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