Class: Noaaer::Forecast

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

Overview

A Forecast object represents a multi-day forecast for a particular place. The forecast for a given day can be accessed using the [] method; e.g. (assuming forecast is a forecast for 12/20/2008 - 12/24/2008):

forecast[1]     #=> ForecastDay for 12/21/2008
forecast.length #=> 4

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(doc) ⇒ Forecast

:noinit:



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# File 'lib/noaaer/forecast.rb', line 19

def initialize(doc) #:noinit:
  @doc = doc
end

Class Method Details

.from_xml(doc) ⇒ Object

:nodoc:



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# File 'lib/noaaer/forecast.rb', line 14

def from_xml(doc) #:nodoc:
  new(doc)
end

Instance Method Details

#[](i) ⇒ Object

Get the ForecastDay for day i

forecast[1] #=> returns the ForecastDay for the second day



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# File 'lib/noaaer/forecast.rb', line 35

def [](i)
  forecast_days[i]
end

#length ⇒ Object

The number of days provided by the forecast



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# File 'lib/noaaer/forecast.rb', line 26

def length
  @length ||= @doc.find(%q{/dwml/data/time-layout[@summarization='24hourly'][1]/start-valid-time}).length
end