wunderground API を使用して、都市ページに天気予報を表示します。
city_controller.rb
def show
@region = Region.find(params[:region_id])
@city = City.find(params[:id])
@weather_lookup = WeatherLookup.new
end
weather_lookup.rb
class WeatherLookup
attr_accessor :temperature, :icon, :condition
def fetch_weather
HTTParty.get("http://api.wunderground.com/api/a8135a01b8230bfb/hourly10day/lang:NL/q/IT/#{@city.name}.xml")
end
def initialize
weather_hash = fetch_weather
end
def assign_values(weather_hash)
hourly_forecast_response = weather_hash.parsed_response['response']['hourly_forecast']['forecast'].first
self.temperature = hourly_forecast_response['temp']['metric']
self.condition = hourly_forecast_response['condition']
self.icon = hourly_forecast_response['icon_url']
end
def initialize
weather_hash = fetch_weather
assign_values(weather_hash)
end
end
show.html.haml(都市)
= @weather_lookup.temperature
= @weather_lookup.condition.downcase
= image_tag @weather_lookup.icon
正しい天気予報を取得するには、例で行ったように、@city 変数を HTTParty.get URL に配置できると考えましたが、エラー メッセージ undefined method `name' が表示されます。
ここで何が間違っていますか?