Class: Wasserstand::Provider::LevelMapper

Inherits:
Object
  • Object
show all
Defined in:
lib/wasserstand/provider/level_mapper.rb

Overview

<item>

  <no>8</no>
  <psmgr>320</psmgr>
  <pegelname>KONSTANZ</pegelname>
  <messwert>380,7</messwert>
  <km>0</km>
  <pnp>391,89</pnp>
  <tendenz>Gleich</tendenz>
  <datum>13.09.2012</datum>
  <uhrzeit>20:00:00</uhrzeit>
  <pegelnummer>0906</pegelnummer>
</item>

Class Method Summary collapse

Class Method Details

.map(item) ⇒ Object 



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# File 'lib/wasserstand/provider/level_mapper.rb', line 19

def map(item)
  level_name = item.xpath('pegelname').text

  Level.new(level_name).tap do |pegel|
    # The level class will resolve the name to a real object if required
    pegel.waterway = item.xpath('../name').text

    pegel.level_id = item.xpath('pegelnummer').text
    pegel.km = item.xpath('km').text.sub(',', '.').to_f
    datum = item.xpath('datum').text
    uhrzeit = item.xpath('uhrzeit').text

    messdatum = TZInfo::Timezone.get('Europe/Berlin').local_to_utc(Time.parse("#{datum} #{uhrzeit}"))
    wert = item.xpath('messwert').text.sub(',', '.').to_f
    tendenz = item.xpath('tendenz').text

    pegel.measurements << Measurement.new(messdatum, wert, Trend.new(tendenz))
  end
end