Class: Synthra::Export::XmlData

Inherits:
Base
  • Object
show all
Defined in:
lib/synthra/export/xml_data.rb

Overview

Exports generated data as XML

Examples:

Export schema data as XML

exporter = XmlData.new(schema, registry: registry, count: 10)
xml = exporter.export

Instance Method Summary collapse

Constructor Details

This class inherits a constructor from Synthra::Export::Base

Instance Method Details

#build_xml_element(name, value, indent, depth = 1) ⇒ Object (private) 



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# File 'lib/synthra/export/xml_data.rb', line 41

def build_xml_element(name, value, indent, depth = 1)
  prefix = " " * (indent * depth)

  case value
  when Hash
    lines = ["#{prefix}<#{name}>"]
    value.each do |k, v|
      lines << build_xml_element(to_snake_case(k.to_s), v, indent, depth + 1)
    end
    lines << "#{prefix}</#{name}>"
    lines.join("\n")
  when Array
    if value.empty?
      "#{prefix}<#{name}/>"
    else
      lines = ["#{prefix}<#{name}>"]
      item_name = singularize(name)
      value.each do |item|
        lines << build_xml_element(item_name, item, indent, depth + 1)
      end
      lines << "#{prefix}</#{name}>"
      lines.join("\n")
    end
  when nil
    "#{prefix}<#{name} nil=\"true\"/>"
  when true, false
    "#{prefix}<#{name}>#{value}</#{name}>"
  else
    escaped = escape_xml(value.to_s)
    "#{prefix}<#{name}>#{escaped}</#{name}>"
  end
end

#escape_xml(str) ⇒ Object (private) 



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# File 'lib/synthra/export/xml_data.rb', line 74

def escape_xml(str)
  str.gsub("&", "&amp;")
     .gsub("<", "&lt;")
     .gsub(">", "&gt;")
     .gsub("\"", "&quot;")
     .gsub("'", "&apos;")
end

#export ⇒ Object 



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# File 'lib/synthra/export/xml_data.rb', line 13

def export
  count = options[:count] || 10
  seed = options[:seed]
  mode = options[:mode] || :random
  indent = options[:indent] || 2

  records = schema.generate_many(count, seed: seed, mode: mode, registry: registry)

  lines = []
  lines << '<?xml version="1.0" encoding="UTF-8"?>'
  lines << "<!-- Generated from Synthra schema: #{schema.name} -->"
  lines << "<!-- Records: #{count}, Generated at: #{Time.now.iso8601} -->"

  root_name = options[:root] || "#{to_snake_case(schema.name)}s"
  item_name = options[:item] || to_snake_case(schema.name)

  lines << "<#{root_name}>"

  records.each do |record|
    lines << build_xml_element(item_name, record, indent)
  end

  lines << "</#{root_name}>"
  lines.join("\n")
end

#singularize(str) ⇒ Object (private) 



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# File 'lib/synthra/export/xml_data.rb', line 88

def singularize(str)
  # Simple singularization
  case str
  when /ies$/
    str.sub(/ies$/, "y")
  when /es$/
    str.sub(/es$/, "")
  when /s$/
    str.sub(/s$/, "")
  else
    str
  end
end

#to_snake_case(str) ⇒ Object (private) 



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# File 'lib/synthra/export/xml_data.rb', line 82

def to_snake_case(str)
  str.gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
     .gsub(/([a-z\d])([A-Z])/, '\1_\2')
     .downcase
end