Class: Barometer::Query::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/barometer/query/base.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(query, units = :metric) ⇒ Base

Returns a new instance of Base.



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# File 'lib/barometer/query/base.rb', line 6

def initialize(query, units=:metric)
  @q = query.dup
  @units = units
  detect_format
  freeze_query
  @conversions = {}
end

Instance Attribute Details

#format ⇒ Object (readonly)

Returns the value of attribute format.



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# File 'lib/barometer/query/base.rb', line 4

def format
  @format
end

#geo ⇒ Object

Returns the value of attribute geo.



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# File 'lib/barometer/query/base.rb', line 4

def geo
  @geo
end

#units ⇒ Object (readonly)

Returns the value of attribute units.



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# File 'lib/barometer/query/base.rb', line 4

def units
  @units
end

Instance Method Details

#add_conversion(format, q) ⇒ Object 



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# File 'lib/barometer/query/base.rb', line 18

def add_conversion(format, q)
  return unless q

  @conversions[format] = q
  converted_query(q, format)
end

#convert!(*preferred_formats) ⇒ Object 



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# File 'lib/barometer/query/base.rb', line 36

def convert!(*preferred_formats)
  return self if preferred_formats.include?(format)

  get_conversion(*preferred_formats) ||
    do_conversion(format, preferred_formats) ||
    raise(ConversionNotPossible)
end

#get_conversion(*formats) ⇒ Object 



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# File 'lib/barometer/query/base.rb', line 25

def get_conversion(*formats)
  converted_format = formats.detect{|f| format == f || @conversions.has_key?(f)}
  return unless converted_format

  if converted_format == format
    self
  else
    converted_query(@conversions[converted_format], converted_format)
  end
end

#metric? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/barometer/query/base.rb', line 44

def metric?
  units == :metric
end

#q ⇒ Object 



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# File 'lib/barometer/query/base.rb', line 14

def q
  @format_klass.convert_query(@q)
end

#to_s ⇒ Object 



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# File 'lib/barometer/query/base.rb', line 48

def to_s
  q.to_s
end