Class: Polyrex

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(location = nil, opt = {}) ⇒ Polyrex

Returns a new instance of Polyrex.



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# File 'lib/polyrex.rb', line 43

def initialize(location=nil, opt={})

  options = {id_counter: '1'}.merge opt

  @id_counter = options[:id_counter]
  @format_masks = []
  @delimiter = '' 
  
  if location then

    self.method(:schema=).call(options[:schema]) if options[:schema]

    openx(location)

    if options[:schema] then

      fields = @schema[/\/.*/].scan(/\[([^\]]+)/).map \
        {|x| x.first.split(',').map(&:strip)}
      refresh_records self.records, fields, 0

    end


    summary_h = Hash[*@doc.root.xpath("summary/*").map {|x| [x.name, x.text]}.flatten]      
    #@summary = OpenStruct.new summary_h

    @summary = RecordX.new summary_h
    @summary_fields = summary_h.keys.map(&:to_sym)
  end
  
  @polyrex_xslt = RecordxXSLT.new
end

Instance Attribute Details

#delimiter ⇒ Object

Returns the value of attribute delimiter.



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# File 'lib/polyrex.rb', line 40

def delimiter
  @delimiter
end

#id_counter ⇒ Object

Returns the value of attribute id_counter.



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# File 'lib/polyrex.rb', line 40

def id_counter
  @id_counter
end

#schema ⇒ Object

Returns the value of attribute schema.



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# File 'lib/polyrex.rb', line 40

def schema
  @schema
end

#summary_fields ⇒ Object

Returns the value of attribute summary_fields.



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# File 'lib/polyrex.rb', line 40

def summary_fields
  @summary_fields
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/polyrex.rb', line 40

def type
  @type
end

#xslt_schema ⇒ Object

Returns the value of attribute xslt_schema.



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# File 'lib/polyrex.rb', line 40

def xslt_schema
  @xslt_schema
end

Instance Method Details

#add(pxobj) ⇒ Object 



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# File 'lib/polyrex.rb', line 76

def add(pxobj)
  self.record.add pxobj.node
end

#build(records, indent = 0) ⇒ Object 



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# File 'lib/polyrex.rb', line 238

def build(records, indent=0)

  records.map do |item|

    summary = item.element 'summary'
    format_mask = summary.text 'format_mask'
    line = format_mask.gsub(/\[![^\]]+\]/){|x| summary.text x[2..-2]}

    records = item.element('records').elements.to_a
    line = line + "\n" + build(records, indent + 1).join("\n") if records.length > 0
    ('  ' * indent) + line
  end
end

#content(options = {}) ⇒ Object 



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# File 'lib/polyrex.rb', line 80

def content(options={})
  CGI.unescapeHTML(to_xml(options))
end

#create(id: nil) ⇒ Object 



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# File 'lib/polyrex.rb', line 84

def create(id: nil)
    # @create is a PolyrexCreateObject, @parent_node is a Rexle::Element pointing to the current record
  
  @create.id = id || @id_counter
  @create.record = @parent_node.name == 'records' ? @parent_node.root : @parent_node.root.element('records')
  @create
end

#delete(x = nil) ⇒ Object 



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# File 'lib/polyrex.rb', line 92

def delete(x=nil)

  if x.to_i.to_s  == x.to_s then
    @doc.root.delete("//[@id='#{x}'")
  else
    @doc.root.xpath(x).each(&:delete)
  end
end

#element(s) ⇒ Object 



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# File 'lib/polyrex.rb', line 156

def element(s)
  @doc.root.element(s)
end

#find_by_id(id) ⇒ Object

– start of crud methods –



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# File 'lib/polyrex.rb', line 130

def find_by_id(id)
  @parent_node = @doc.root.element("//[@id='#{id}']")
  @objects[@parent_node.name].new(@parent_node, id: @id)
end

#format_masks ⇒ Object

– start of full text edit methods



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# File 'lib/polyrex.rb', line 143

def format_masks
  @format_masks
end

#id(id) ⇒ Object 



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# File 'lib/polyrex.rb', line 135

def id(id)
  @parent_node = @doc.root.element("//[@id='#{id}']")
  self
end

#parse(buffer = '', options = {}) ⇒ Object Also known as: import 



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# File 'lib/polyrex.rb', line 147

def parse(buffer='', options={})

  buffer = yield if block_given?          
  string_parse buffer.clone, options
  self
end

#record ⇒ Object 



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# File 'lib/polyrex.rb', line 110

def record()
  @parent_node
end

#records ⇒ Object 



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# File 'lib/polyrex.rb', line 160

def records
  @doc.root.xpath("records/*").map do |record|      
    @objects_a[0].new(record)
  end
end

#rxpath(s) ⇒ Object 



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# File 'lib/polyrex.rb', line 166

def rxpath(s)
  
  a = @doc.root.xpath s.split('/').map \
                {|x| x.sub('[','[summary/').prepend('records/')}.join('/')
  
  a.map {|x| @objects[x.name].new(x, id: x.attributes[:id]) }

end

#save(filepath = nil, options = {}) ⇒ Object 



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# File 'lib/polyrex.rb', line 119

def save(filepath=nil, options={})    
  refresh_summary
  filepath ||= @local_filepath
  @local_filepath = filepath
  xml = @doc.to_s(options)
  buffer = block_given? ? yield(xml) : xml
  File.open(filepath,'w'){|f| f.write buffer}    
end

#summary ⇒ Object 



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# File 'lib/polyrex.rb', line 186

def summary
  @summary
end

#to_a ⇒ Object 



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# File 'lib/polyrex.rb', line 190

def to_a()
  recordx_map @doc.root
end

#to_dynarex ⇒ Object 



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# File 'lib/polyrex.rb', line 194

def to_dynarex()
  root = @doc.root.deep_clone

  summary = root.element('summary')
  e = summary.element('schema')
  e.text = e.text[/[^\/]+\/[^\/]+/].sub(/(\/\w+)\[([^\]]+)\]/,'\1(\2)')
  summary.delete('format_mask')
  summary.element('recordx_type').text = 'dynarex'

  summary.add root.element('records/*/summary/format_mask').clone
  root.xpath('records/*/summary/format_mask').each(&:delete)

xsl_buffer ="<xsl:stylesheet xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\" version=\"1.0\">\n<xsl:output encoding=\"UTF-8\"\n          indent=\"yes\"\n          omit-xml-declaration=\"yes\"/>\n\n<xsl:template match=\"*\">\n  <xsl:element name=\"{name()}\">\n  <xsl:element name=\"summary\">\n    <xsl:for-each select=\"summary/*\">\n      <xsl:copy-of select=\".\"/>\n    </xsl:for-each>\n  </xsl:element>\n  <xsl:element name=\"records\">\n    <xsl:for-each select=\"records/*\">\n      <xsl:element name=\"{name()}\">\n        <xsl:copy-of select=\"summary/*\"/>\n      </xsl:element>\n    </xsl:for-each>\n  </xsl:element>\n  </xsl:element>\n</xsl:template>\n</xsl:stylesheet>\n"
  xslt  = Nokogiri::XSLT(xsl_buffer)
  buffer = xslt.transform(Nokogiri::XML(root.xml)).to_s
  Dynarex.new buffer

end

#to_s ⇒ Object 



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# File 'lib/polyrex.rb', line 236

def to_s()

  def build(records, indent=0)

    records.map do |item|

      summary = item.element 'summary'
      format_mask = summary.text 'format_mask'
      line = format_mask.gsub(/\[![^\]]+\]/){|x| summary.text x[2..-2]}

      records = item.element('records').elements.to_a
      line = line + "\n" + build(records, indent + 1).join("\n") if records.length > 0
      ('  ' * indent) + line
    end
  end

  sumry = ''


  summary_fields = self.summary.to_h.keys

  %w(recordx_type schema format_mask).each {|x| summary_fields.delete x}
  sumry = summary_fields.map {|x| x + ': ' + \
                     self.summary.method(x.to_sym).call}.join("\n") + "\n"


  if @raw_header then
    declaration = @raw_header
  else

    smry_fields = i(schema)              
    if self.delimiter.length > 0 then
      smry_fields << :delimiter 
    else
      smry_fields << :format_mask
    end
    s = smry_fields.map {|x| "%s=\"%s\"" % \
      [x, self.summary.send(x).gsub('"', '\"') ]}.join ' '

    declaration = %Q(<?polyrex %s?>\n) % s
  end

  header = declaration + sumry
  out = build(self.records).join("\n")
  header + "\n" + out
end

#to_xml(options = {}) ⇒ Object 



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# File 'lib/polyrex.rb', line 114

def to_xml(options={})
  refresh_summary
  @doc.to_s(options)
end

#to_xslt ⇒ Object 



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# File 'lib/polyrex.rb', line 283

def to_xslt()    
  @polyrex_xslt.schema = @schema
  @polyrex_xslt.to_xslt
end

#xpath(s, &blk) ⇒ Object 



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# File 'lib/polyrex.rb', line 288

def xpath(s, &blk)

  if block_given? then
    @doc.root.xpath(s, &blk)
  else
    @doc.root.xpath s
  end
end