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outoftime / noaa

Ruby API for National Oceanic and Atmospheric Association (National Weather Service) weather data
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undefined method `xpath' for LibXML::XML #3

Open seankibler opened 13 years ago

seankibler commented 13 years ago

Using Ruby 1.9.1 Using libxml-ruby 2.0.9

weather = NOAA.current_conditions_at_station("KCAK")
weather.weather_description

NoMethodError: undefined method `xpath' for #<LibXML::XML::Document:0x00000107379418>
    from /Users/skibler/Projects/newscloudcms/.bundle/ruby/1.9.1/gems/noaa-0.2.4/lib/noaa/current_conditions.rb:177:in `text_from_node'
    from /Users/skibler/Projects/newscloudcms/.bundle/ruby/1.9.1/gems/noaa-0.2.4/lib/noaa/current_conditions.rb:30:in `weather_description'
    from (irb):6
    from /Users/skibler/Projects/newscloudcms/.bundle/ruby/1.9.1/gems/railties-3.0.3/lib/rails/commands/console.rb:44:in `start'
    from /Users/skibler/Projects/newscloudcms/.bundle/ruby/1.9.1/gems/railties-3.0.3/lib/rails/commands/console.rb:8:in `start'
    from /Users/skibler/Projects/newscloudcms/.bundle/ruby/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:23:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'
jreidthompson commented 13 years ago

$ ruby -v ruby 1.8.7 (2011-02-18 patchlevel 334) [x86_64-linux]

$ ~/bin/oxfordWeatherAll.rb /usr/local/lib64/ruby/gems/1.8/gems/noaa-0.2.4/lib/noaa/current_conditions.rb:177:in text_from_node': undefined methodxpath' for #LibXML::XML::Document:0x7f0026190de8 (NoMethodError) from /usr/local/lib64/ruby/gems/1.8/gems/noaa-0.2.4/lib/noaa/current_conditions.rb:23:in `observed_at' from /home/rthompso/bin/oxfordWeatherAll.rb:19

jreidthompson commented 13 years ago

$ gem list --local

* LOCAL GEMS *

andre-geokit (1.5.0) atk (0.19.4) cairo (1.10.0) color (1.4.1) columnize (0.3.4) daemons (1.1.3) echoe (4.3.1) fastthread (1.0.7) gdkpixbuf2 (0.19.4) geokit (1.6.0) gettext (2.1.0) glib2 (0.19.4) gnome2 (0.19.4) gnomecanvas2 (0.19.4) gruff (0.3.6) gtk2 (0.19.4) highline (1.6.1) hoe (2.8.0) httparty (0.8.1) httpclient (2.2.1) jeremymcanally-context (0.5.5) jeremymcanally-matchy (0.1.0) json (1.4.6) libart2 (0.19.4) libglade2 (0.19.4) libxml-ruby (2.2.2) linecache (0.46) locale (2.0.5) multi_json (1.0.3) multi_xml (0.4.1) net-http-digest_auth (1.1.1) net-http-persistent (2.1) net-scp (1.0.4) net-sftp (2.0.5) net-ssh (2.1.3) noaa (0.2.4) nokogiri (1.5.0) outoftime-noaa (0.2.2) pango (0.19.4) pdf-writer (1.1.8) rake (0.8.7) rake-compiler (0.7.5) rbx-require-relative (0.0.5) rmagick (2.13.0) ruby-debug (0.10.4) ruby-debug-base (0.10.4) ruby-net-ldap (0.0.4) ruby-prof (0.10.7) rubyforge (2.0.4) rubygems-update (1.8.10 ruby) RubyInline (3.8.6) sqlite3-ruby (1.3.2) syntax (1.0.0) transaction-simple (1.4.0) xml-simple (1.1.0) ZenTest (4.4.2)

jreidthompson commented 13 years ago

fixed for my purposed by changing line 177 of current_conditions.rb from

@doc.xpath("/current_observation/#{element_name}[1]/child::text()").first.to_s

to @doc.find("/current_observation/#{element_name}[1]/child::text()").first.to_s

/usr/local/lib64/ruby/gems/1.8/gems/noaa-0.2.4/lib/noaa/current_conditions.rb:177:in text_from_node': undefined methodxpath' for #LibXML::XML::Document:0x7fe21411e8f8 (NoMethodError

jreidthompson commented 11 years ago

it appears that current_conditions.rb line 177 def text_from_node(element_name) @doc.xpath("/current_observation/#{element_name}[1]/child::text()").first.to_s end should now read as def text_from_node(element_name) @doc.find("/current_observation/#{element_name}[1]/child::text()").first.to_s end