Class: Wolfram::Result

Inherits:
Object
  • Object
show all
Extended by:
Util
Includes:
Enumerable, XmlContainer
Defined in:
lib/wolfram/result.rb

Overview

Result of a Query. Can have multiple Assumptions and Pods.

Instance Attribute Summary collapse

Attributes included from XmlContainer

#xml

Instance Method Summary collapse

Methods included from Util

delegate, module_get, to_param, to_query

Methods included from XmlContainer

#respond_to?

Constructor Details

#initialize(xml, options = {}) ⇒ Result

Returns a new instance of Result.



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# File 'lib/wolfram/result.rb', line 13

def initialize(xml, options = {})
  @query = options[:query]
  @xml = Nokogiri::XML(xml.to_s).search('queryresult').first
  @xml or raise MissingNodeError, "<queryresult> node missing from xml: #{xml[0..20]}..."
  @assumptions = Assumption.collection(@xml, options)
  @pods = Pod.collection(@xml, options)
  types.each {|mod| extend mod}
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Wolfram::XmlContainer

Instance Attribute Details

#assumptions ⇒ Object (readonly)

Returns the value of attribute assumptions.



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# File 'lib/wolfram/result.rb', line 11

def assumptions
  @assumptions
end

#pods ⇒ Object (readonly)

Returns the value of attribute pods.



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# File 'lib/wolfram/result.rb', line 11

def pods
  @pods
end

#query ⇒ Object (readonly)

Returns the value of attribute query.



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# File 'lib/wolfram/result.rb', line 11

def query
  @query
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/wolfram/result.rb', line 22

def [](key)
  key.is_a?(String) ? pods.find {|e| e.title == key } : pods[key]
end

#assumption ⇒ Object

shortcut to the first assumption



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# File 'lib/wolfram/result.rb', line 31

def assumption
  assumptions[0]
end

#format ⇒ Object 



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# File 'lib/wolfram/result.rb', line 46

def format
  @query && @query.options[:format]
end

#inspect ⇒ Object 



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# File 'lib/wolfram/result.rb', line 39

def inspect
  out = "a: #{xml['datatypes']}"
  out << " (assumptions: #{assumptions.map(&:name).join(', ')})" if !Array(assumptions).empty?
  out << pods.map{|pod| "\n  - #{pod.to_s.gsub("\n", "\n    ")}"}.join
  out
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wolfram/result.rb', line 26

def success?
  success
end

#types ⇒ Object 



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# File 'lib/wolfram/result.rb', line 35

def types
  @types ||= xml['datatypes'].split(',').map {|type| Util.module_get(Result, type)}
end