Class: TTL2HTML::Template

Inherits:
Object
  • Object
show all
Includes:
ActionView::Helpers::NumberHelper, ERB::Util, I18n::Base, Util
Defined in:
lib/ttl2html/template.rb

Instance Method Summary collapse

Methods included from Util

#_uri_mapping_to_path, #make_mapping_uris_cache, #safe_output_path, #uri_mapping_to_path

Constructor Details

#initialize(template, param = {}) ⇒ Template

Returns a new instance of Template.



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# File 'lib/ttl2html/template.rb', line 15

def initialize(template, param = {})
  @template = template
  @param = param.dup
  @template_path = [ File.join(Dir.pwd, "templates") ]
  @template_path << File.join(File.dirname(__FILE__), "..", "..", "templates")
  I18n.load_path << Dir[File.join(File.dirname(__FILE__), "..", "..", "locales") + "/*.yml"]
  I18n.load_path << Dir[File.expand_path("locales") + "/*.yml"]
  I18n.locale = @param[:locale].to_sym if @param[:locale]
end

Instance Method Details

#expand_shape(data, uri, prefixes = {}, depth = 0) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 60

def expand_shape(data, uri, prefixes = {}, depth = 0)
  return nil if not data[uri]
  return nil if not data[uri]["http://www.w3.org/ns/shacl#property"]
  return nil if depth > 10
  prefix_used = {}
  result = data[uri]["http://www.w3.org/ns/shacl#property"].sort_by do |e|
    e["http://www.w3.org/ns/shacl#order"]
  end.map do |property|
    path = data[property]["http://www.w3.org/ns/shacl#path"].first
    shorten_path = path.dup
    prefixes.each do |prefix, val|
      if path.index(val) == 0
        shorten_path = path.sub(/\A#{val}/, "#{prefix}:")
        prefix_used[prefix] = val
      end
    end
    repeatable = false
    if data[property]["http://www.w3.org/ns/shacl#maxCount"]
      max_count = data[property]["http://www.w3.org/ns/shacl#maxCount"].first.to_i
      if max_count > 1
        repeatable = true
      end
    else
      repeatable = true
    end
    nodes = nil
    if data[property]["http://www.w3.org/ns/shacl#node"]
      node = data[property]["http://www.w3.org/ns/shacl#node"].first
      if data[node]["http://www.w3.org/ns/shacl#or"]
        node_or = data[data[node]["http://www.w3.org/ns/shacl#or"].first]
        node_mode = :or
        nodes = []
        nodes << expand_shape(data, node_or["http://www.w3.org/1999/02/22-rdf-syntax-ns#first"].first, prefixes, depth + 1)
        rest = node_or["http://www.w3.org/1999/02/22-rdf-syntax-ns#rest"].first
        while data[rest] do
          nodes << expand_shape(data, data[rest]["http://www.w3.org/1999/02/22-rdf-syntax-ns#first"].first, prefixes, depth + 1)
          rest = data[rest]["http://www.w3.org/1999/02/22-rdf-syntax-ns#rest"].first
        end
      else
        nodes = expand_shape(data, node, prefixes, depth + 1)
      end
      #p nodes
    end
    example = data[property]["http://www.w3.org/2004/02/skos/core#example"].first if data[property]["http://www.w3.org/2004/02/skos/core#example"]
    if example.respond_to?(:datatype) and example.datatype?
      datatype = example.datatype.pname or example.datatype.to_s
      example = example.to_s + "<span class=\"datatype\">^^" + example.datatype.pname + "</span>"
    end
    descriptions = [ get_language_literal(data[property]["http://www.w3.org/ns/shacl#description"]) ]
    if data[property]["http://www.w3.org/ns/shacl#datatype"]
      datatypes = data[property]["http://www.w3.org/ns/shacl#datatype"].map do |datatype|
        datatype.to_s.sub(%r{\Ahttp://www\.w3\.org/2001/XMLSchema#}, 'xsd:')
      end.join(", ")
      descriptions << t('shape-table.datatype') + datatypes
    end
    {
      path: path,
      shorten_path: shorten_path,
      name: get_language_literal(data[property]["http://www.w3.org/ns/shacl#name"]),
      example: example,
      description: descriptions.compact.join("<br>"),
      required: data[property]["http://www.w3.org/ns/shacl#minCount"] ? data[property]["http://www.w3.org/ns/shacl#minCount"].first.to_i > 0 : false,
      repeatable: repeatable,
      nodeKind: data[property]["http://www.w3.org/ns/shacl#nodeKind"] ? data[property]["http://www.w3.org/ns/shacl#nodeKind"].first : nil,
      class: data[property]["http://www.w3.org/ns/shacl#class"] ? data[property]["http://www.w3.org/ns/shacl#class"].first : nil,
      nodes: nodes,
      node_mode: node_mode,
      prefix: prefix_used,
    }
  end
  template = "shape-table.html.erb"
  to_html_raw(template, { properties: result, prefix: prefix_used })
end

#find_template_path(fname) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 48

def find_template_path(fname)
  if @param[:template_dir] and Dir.exist?(@param[:template_dir])
    @template_path.unshift(@param[:template_dir])
    @template_path.uniq!
  end
  @template_path.each do |dir|
    file = File.join(dir, fname)
    return file if File.file? file
  end
  nil
end

#format_object(object, param) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 228

def format_object(object, param)
  type = param[:type] || {}
  data = param[:data] || {}
  if /\Ahttps?:\/\// =~ object.to_s
    #p [:format_object_uri, param[:output_file], object]
    rel_path = relative_path_uri(param[:output_file], object)
    if param[:data_global][object]
      result = "<a href=\"#{rel_path}\">#{get_title(param[:data_global][object]) or ERB::Util.html_escape(object)}</a>"
      subtitle = get_subtitle(param[:data_global][object])
      if subtitle
        result += " <small>#{subtitle}</small>"
      else
        result
      end
    else
      "<a href=\"#{rel_path}\">#{ERB::Util.html_escape object}</a>"
    end
  elsif /\A_:/ =~ object.to_s and param[:data_global][object]
    if type[:inverse] and param[:data_inverse_global][object]
      format_triples(param[:data_inverse_global][object], param, inverse: true, blank: true)
    else
      format_triples(param[:data_global][object], param, blank: true)
    end
  else
    ERB::Util.html_escape object
  end
end

#format_property(property, param, subject = nil) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 216

def format_property(property, param, subject = nil)
  param = @param.merge(param)
  subject = param[:blank_subject] if not subject and param[:blank_subject]
  subject_class = param[:data_global][subject][RDF.type.to_s]&.first if subject
  if subject_class and param[:labels_with_class][subject_class] and param[:labels_with_class][subject_class][property]
    param[:labels_with_class][subject_class][property]
  elsif param[:labels] and param[:labels][property]
    param[:labels][property]
  else
    property.split(/[\/\#]/).last.capitalize
  end
end

#format_triples(triples, param, type = {}) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 255

def format_triples(triples, param, type = {})
  param_local = @param.dup.merge(param)
  param_local = param_local.merge(data: triples)
  param_local[:type] = type
  if @param[:labels_with_class] and triples["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"]
    @param[:labels_with_class].reverse_each do |k, v|
      triples["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"].each do |entity_class|
        if entity_class == k
          v.each do |property, label_value|
            param_local[:labels] ||= {}
            param_local[:labels][property] = label_value
          end
        end
      end
    end
  end
  if @param[:orders_with_class] and triples["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"]
    @param[:orders_with_class].reverse_each do |k, v|
      triples["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"].each do |entity_class|
        if entity_class == k
          v.each do |property, order|
            param_local[:orders] ||= {}
            param_local[:orders][property] = order || Float::INFINITY
          end
        end
      end
    end
  end
  if type[:inverse] == true
    if type[:blank] == true
      #p param_local[:data]
      #p param_local[:data_inverse]
      #p param_local[:data_inverse].values.first.first
      param_local[:blank_subject] = param_local[:data].values.first.first
      param_local[:blank_triples] = {
        param_local[:data].keys.first => param_local[:data_global][param_local[:blank_subject]][param_local[:data].keys.first]
      }
      #p param_local[:blank_subject]
      #p param_local[:blank_triples]
      param_local[:type] = {}
      #pp param_local
      to_html_raw("triples-blank.html.erb", param_local)
    else
      to_html_raw("triples-inverse.html.erb", param_local)
    end
  else
    to_html_raw("triples.html.erb", param_local)
  end
end

#format_version_info(version) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 304

def format_version_info(version)
  param_local = @param.dup.merge(data: version)
  to_html_raw("version.html.erb", param_local)
end

#get_language_literal(object) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 202

def get_language_literal(object)
  if object.is_a? Array
    object_lang = object.select do |e|
      e.language? and e.language == I18n.locale
    end
    if not object_lang.empty?
      object_lang.first
    else
      object.first
    end
  else
    object
  end
end

#get_subtitle(data, default_title = nil) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 194

def get_subtitle(data, default_title = nil)
  resolve_title(data,
    default: default_title,
    use_default: false,
    property_key: :subtitle_property,
    perclass_key: :subtitle_property_perclass
  )
end

#get_title(data, default_title = "no title") ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 186

def get_title(data, default_title = "no title")
  resolve_title(data,
    default: default_title,
    use_default: true,
    property_key: :title_property,
    perclass_key: :title_property_perclass
  )
end

#html_title(param) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 168

def html_title(param)
  titles = []
  if @template.start_with? "about.html"
    titles << t("about.title", title: param[:site_title])
  else
    titles << param[:title]
    titles << param[:site_title]
  end
  titles.compact.join(" - ")
end

#output_to(file, param = {}) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 24

def output_to(file, param = {})
  param = @param.merge(param)
  param[:output_file] = file
  FileUtils.mkdir_p(File.dirname(file))
  File.open(file, "w") do |io|
    io.print to_html(param)
  end
end

#relative_path(src, dest) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 136

def relative_path(src, dest)
  path = nil
  dest_uri = RDF::IRI.parse(dest)
  if dest_uri.absolute?
    path = dest
  else
    dest.sub!(/^\/+/, "")
    #p [:relative_path, src, dest]
    if @param[:output_dir]
      src = Pathname.new(src).relative_path_from(Pathname.new(@param[:output_dir]))
    else
      src = Pathname.new(File.expand_path(src)).relative_path_from(Pathname.new(File.expand_path(".")))
    end
    path = Pathname(dest).relative_path_from(Pathname(File.dirname src))
    if @param[:output_dir] and File.directory?(File.join(@param[:output_dir], path))
      path = path.to_s + "/"
    elsif File.directory?(path)
      path = path.to_s + "/"
    end
  end
  #p [ :relative_path, path, dest, src ]
  path
end

#relative_path_uri(src, dest_uri, base_uri = ) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 159

def relative_path_uri(src, dest_uri, base_uri = @param[:base_uri])
  if dest_uri.start_with? base_uri
    dest = dest_uri.sub(base_uri, "")
    dest = uri_mapping_to_path(dest, @param, "")
    relative_path(src, dest)
  else
    dest_uri
  end
end

#shorten_title(title, length = 140) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 178

def shorten_title(title, length = 140)
  if title.to_s.length > length
    short_title = Nokogiri::HTML::DocumentFragment.parse(title.to_s[0..length])
    short_title.to_html + "..."
  else
    ERB::Util.html_escape title
  end
end

#to_html(param) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 32

def to_html(param)
  param[:content] = to_html_raw(@template, param)
  layout_fname = "layout.html.erb"
  to_html_raw(layout_fname, param)
end

#to_html_raw(template, param) ⇒ Object 



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# File 'lib/ttl2html/template.rb', line 37

def to_html_raw(template, param)
  param = @param.merge(param)
  template = find_template_path(template)
  tmpl = File.open(template) { |io| io.read }
  erb = ERB.new(tmpl, trim_mode: "-")
  erb.filename = template
  I18n.with_locale(@param[:locale] || I18n.default_locale) do
    erb.result(binding)
  end
end