Class: RubyPager::XML

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_pager/xml.rb

Class Method Summary collapse

Class Method Details

.exists?(file_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruby_pager/xml.rb', line 8

def self.exists?(file_name)
  if file_name.end_with?(".xml")
    return File.file?(file_name)
  end
  return false
end

.generate_xml(data, parent = false, opt = {}) ⇒ Object 



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# File 'lib/ruby_pager/xml.rb', line 28

def self.generate_xml(data, parent = false, opt = {})
  return if data.to_s.empty?
  return unless data.is_a?(Hash)

  unless parent
    # assume that if the hash has a single key that it should be the root
    root, data = (data.length == 1) ? data.shift : ["root", data]
    attr = Hash.new
    data.each{|label,value|
      if(label.start_with?("@")) then
        new_label = label.dup
        new_label[0]= ''
        attr[new_label]=value
      end
    }
    builder = Nokogiri::XML::Builder.new(opt) do |xml|
      xml.send(root,attr) {
        data.each{|label,value|
          if(label.start_with?("@")) then
            data.delete(label)
          end
        }
        generate_xml(data, xml)
      }
    end

    return builder.to_xml
  end
  data.each { |label, value|
    if value.is_a?(Hash)
      attr = Hash.new
      value.each{|vlabel,vvalue|
        if(vlabel.start_with?("@")) then
          new_label = vlabel.dup
          new_label[0]= ''
          attr[new_label]=vvalue
        end
      }

      parent.send(label,attr) {
        value.each{|vlabel,vvalue|
          if(vlabel.start_with?("@")) then
            value.delete(vlabel)
          end
        }
        generate_xml(value, parent)
      }

    elsif value.is_a?(Array)
      value.each { |el|
        # lets trick the above into firing so we do not need to rewrite the checks
        el = {label => el}
        generate_xml(el, parent)
      }

    else
      parent.send(label, value)
    end
  }
end

.load(file_name) ⇒ Object 



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# File 'lib/ruby_pager/xml.rb', line 15

def self.load(file_name)
  if self.exists?(file_name)
    xml  = Nokogiri::XML(File.open(file_name)) { |config| config.strict.noblanks }
    hash = Nori.new(:parser => :nokogiri, :advanced_typecasting => false).parse(xml.to_s)
    return hash
  end
  return nil
end

.save(file_name, hash) ⇒ Object 



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# File 'lib/ruby_pager/xml.rb', line 24

def self.save(file_name,hash)
  File.open(file_name, 'w') { |file| file.write(self.generate_xml(hash)) } ;
end