Class: Weather

Inherits:
DynamicContent
  • Object
show all
Defined in:
app/models/weather.rb

Constant Summary collapse

DISPLAY_NAME = 
'Weather'
UNITS = 
{
  'metric' => 'Celsius',
  'imperial' => 'Fahrenheit'
}
FONTS = 
{
  'owf' => 'Open Weather Font',
  'wi' => 'Weather Icons'
}
FORECAST = 
{
  'realtime' => 'Realtime Weather',
  'forecast' => 'Max and Min temps forecast for the day'
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.form_attributes ⇒ Object

Weather needs a location. Also allow specification of units



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# File 'app/models/weather.rb', line 146

def self.form_attributes
  attributes = super()
  attributes.concat([:config => [:lat, :lng, :units, :font_name, :location_name, :format_string, :forecast_type]])
end

Instance Method Details

#build_content ⇒ Object 



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# File 'app/models/weather.rb', line 21

def build_content
  require 'json'
  require 'net/http'

  forecast_type = self.config['forecast_type']
  font_name = self.config['font_name']

  if forecast_type == 'forecast'
     # Full day forecast
     # Build request url
     params = {
        lat: self.config['lat'],
        lon: self.config['lng'],
        units: self.config['units'],
        cnt: 1,
        mode: 'json',
        appid: ConcertoConfig['open_weather_map_api_key']
     }

     url = "http://api.openweathermap.org/data/2.5/forecast/daily?#{params.to_query}"

     # Make request to OpenWeatherMapAPI
     response = Net::HTTP.get_response(URI.parse(url)).body
     data = JSON.parse(response)

     # if there was an error, then return nil
     if data['cod'].present? && !data['cod'].to_s.starts_with?('2')
       Rails.logger.error("response (#{url}) =  #{response}")
       return nil
     end

     # Build HTML using API data

     self.config["location_name"] = data["city"]["name"]

     format_city = data['city']['name']
     format_iconid = "#{data['list'][0]['weather'][0]['id']}"

     if font_name=='wi'
        format_icon = "<i style=\'font-size:calc(min(80vh,80vw));' class=\'wi wi-owm-#{format_iconid}\'></i>"
     else
        format_icon = "<i class=\'owf owf-#{format_iconid} owf-5x\'></i>"
     end

     format_high = "#{data['list'][0]['temp']['max'].round(0)} &deg;#{UNITS[params[:units]][0]}"
     format_low = "#{data['list'][0]['temp']['min'].round(0)} &deg;#{UNITS[params[:units]][0]}"
     empty_html = "
              <h1> Today in #{format_city} </h1>
              <div style='float: left; width: 50%'>
                 #{format_icon}
              </div>
              <div style='float: left; width: 50%'>
                <p> High </p>
                <h1> #{format_high} </h1>
                <p> Low </p>
                <h1> #{format_low}</h1>
              </div>
            "
  else
     # We're using realtime weather forecast
     # Build request url
     params = {
        lat: self.config['lat'],
        lon: self.config['lng'],
        units: self.config['units'],
        mode: 'json',
        appid: ConcertoConfig['open_weather_map_api_key']
     }

     url = "http://api.openweathermap.org/data/2.5/weather?#{params.to_query}"

     # Make request to OpenWeatherMapAPI
     response = Net::HTTP.get_response(URI.parse(url)).body
     data = JSON.parse(response)

     # if there was an error, then return nil
     if data['cod'].present? && !data['cod'].to_s.starts_with?('2')
       Rails.logger.error("response (#{url}) =  #{response}")
       return nil
     end

     # Build HTML using API data

     self.config["location_name"] = data["name"]

     format_city = data['name']
     format_iconid = "#{data['weather'][0]['id']}"

     if font_name=='wi'
        format_icon = "<i style=\'font-size:calc(min(80vh,80vw));' class=\'wi wi-owm-#{format_iconid}\'></i>"
     else
        format_icon = "<i class=\'owf owf-#{format_iconid} owf-5x\'></i>"
     end

     format_high = "#{data['main']['temp_max'].round(0)} &deg;#{UNITS[params[:units]][0]}"
     format_low = "#{data['main']['temp_min'].round(0)} &deg;#{UNITS[params[:units]][0]}"
     format_current = "#{data['main']['temp'].round(0)} &deg;#{UNITS[params[:units]][0]}"
     empty_html = "
              <h1> Today in #{format_city} </h1>
              <div style='float: left; width: 50%'>
                 #{format_icon}
              </div>
              <div style='float: left; width: 50%'>
                <p> Current </p>
                <h1> #{format_current} </h1>
              </div>
            "
  end

  format_string = self.config['format_string']

  if format_string.blank?
     rawhtml = empty_html
  else
     rawhtml = eval("\"" + format_string + "\"")
  end

  # Create HtmlText content
  htmltext = HtmlText.new()
  htmltext.name = "Today's weather in #{format_city}"
  htmltext.data = rawhtml
  return [htmltext]
end

#validate_config ⇒ Object 



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# File 'app/models/weather.rb', line 151

def validate_config
  if self.config['lat'].blank? || self.config['lng'].blank?
    errors.add(:base, 'A city must be selected')
  end
end