Class: QueryService::WikidataDate

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/query_service.rb

Overview

a Wikidata date of a given precision

Instance Method Summary collapse

Constructor Details

#initialize(str, precision) ⇒ WikidataDate

Returns a new instance of WikidataDate.



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# File 'lib/query_service.rb', line 57

def initialize(str, precision)
  @str = str
  @raw_precision = precision.to_s
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/query_service.rb', line 62

def <=>(other)
  return to_s <=> other.to_s if precision == other.precision
  return year <=> other.year if year != other.year
  return month <=> other.month if month && other.month
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/query_service.rb', line 77

def empty?
  str.to_s.empty?
end

#month ⇒ Object 



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# File 'lib/query_service.rb', line 91

def month
  parts[1]
end

#precision ⇒ Object 



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# File 'lib/query_service.rb', line 81

def precision
  return '11' if raw_precision.empty? # default to YYYY-MM-DD

  raw_precision
end

#to_s ⇒ Object 



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# File 'lib/query_service.rb', line 68

def to_s
  return str if precision == '11'
  return str[0..6] if precision == '10'
  return str[0..3] if precision == '9'

  warn "Cannot handle precision #{precision} for #{str}"
  str
end

#year ⇒ Object 



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# File 'lib/query_service.rb', line 87

def year
  parts[0]
end