Class: SgMRT::Station

Inherits:
Object
  • Object
show all
Defined in:
lib/sg_mrt.rb

Constant Summary collapse

@@cache = 
{}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, code = nil) ⇒ Station

Returns a new instance of Station.



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# File 'lib/sg_mrt.rb', line 117

def initialize(name, code = nil)
  @name = name
  @lines = []
  @codes = []
  @codes << code if code
end

Instance Attribute Details

#codes ⇒ Object

Returns the value of attribute codes.



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# File 'lib/sg_mrt.rb', line 114

def codes
  @codes
end

#lines ⇒ Object

Returns the value of attribute lines.



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# File 'lib/sg_mrt.rb', line 114

def lines
  @lines
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/sg_mrt.rb', line 114

def name
  @name
end

Class Method Details

.all ⇒ Object 



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# File 'lib/sg_mrt.rb', line 126

def all
  SgMRT.stations
end

.cached ⇒ Object 



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# File 'lib/sg_mrt.rb', line 138

def cached
  @@cache
end

.define_helpers(meths) ⇒ Object

Defines line helpers

Example:

station = Station.find_by_code('EW13')
station.ewl?     # => true



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# File 'lib/sg_mrt.rb', line 150

def define_helpers(meths)
  meths.each do |code|
    define_method("#{code.downcase}?") do 
      @lines.include?(code.upcase) 
    end

    define_method("#{code}?") do
      @lines.include?(code.upcase)
    end
  end
end

.find_by_code(code) ⇒ Object 



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# File 'lib/sg_mrt.rb', line 134

def find_by_code(code)
  @@cache[code] ||= all.find{|x| x.codes.include?(code)}
end

.find_by_name(name) ⇒ Object 



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# File 'lib/sg_mrt.rb', line 130

def find_by_name(name)
  @@cache[name] ||= all.find{|x| x.name == name}
end