Class: SimpleCataloger::DirectoryVisitor

Inherits:
Object
  • Object
show all
Defined in:
lib/dircat/cat_on_sqlite/directory_visitor.rb,
lib/simple_cataloger_dm/core/directory_visitor.rb

Overview

Find directory without subdirectories

Instance Method Summary collapse

Constructor Details

#initialize(catalog_root) ⇒ DirectoryVisitor

Returns a new instance of DirectoryVisitor.



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# File 'lib/dircat/cat_on_sqlite/directory_visitor.rb', line 8

def initialize(catalog_root)
  @stack        = []
  @files        = []
  @nr           = 0
  @catalog_root = catalog_root
end

Instance Method Details

#enter_node(pathname) ⇒ Object 



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# File 'lib/dircat/cat_on_sqlite/directory_visitor.rb', line 15

def enter_node(pathname)
  # each directory is associated to a number,
  # so when exit_tree_node is called and the number @nr is not increased
  # the directory doesn't have subdirectories
  @nr += 1

  dirname = File.basename(pathname)
  tags    = Tag.extract_tags(dirname)
  tags = tags.concat(@stack.last.tags).uniq unless @stack.empty?
  info = OpenStruct.new(:nr => @nr, :pathname => pathname, :tags => tags, :name => Tag.extract_name(dirname))

  @files = []
  @stack.push(info)
end

#exit_node(pathname) ⇒ Object 



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# File 'lib/dircat/cat_on_sqlite/directory_visitor.rb', line 30

def exit_node(pathname)
  info = @stack.pop

  if info.nr == @nr
    # this directory doesn't have subdirectories
    name      = info.name
    tag_names = info.tags
    puts name
    # pp tags

    # every name must be unique, two films cannot have the some name
    if Item.find_by_name(name)
      raise "item #{name} is not unique path #{pathname}"
    end

    item = Item.create(
        :name                   => name,
        :added_at               => File.lstat(pathname).ctime,
        :path                   => pathname,
        :path_from_catalog_root => pathname[File.dirname(@catalog_root).length..-1]
    )

    #
    # Associate item and tags
    #
    unknown = Category.find_or_create_by_name("unknown")
    tag_names.each do |tag_name|
      tag = Tag.find_by_name(tag_name)
      unless tag
        tag = Tag.match_category(tag_name)
        unless tag
          tag = Tag.find_by_name_and_category_id(tag_name, unknown.id)
          unless tag
            tag = Tag.create(:name => tag_name, :category => unknown)
          end
        end
      end
      Tagging.find_or_create_by_item_id_and_tag_id(item.id, tag.id)
    end

    #
    # Searches images
    #
    @files.each do |pathname|
      next unless pathname.match /(jpg|jpeg)$/

      image = Image.find_or_create_by_path_and_path_from_catalog_root(
          pathname,
          pathname[File.dirname(@catalog_root).length..-1]
      )
      item.images << image

      filename  = File.basename(pathname)
      tag_names = Tag.extract_tags(filename)
      tag_names.each do |tag_name|
        tag = Tag.first(:name => tag_name)
        if tag
          tag.images << image
          tag.save
        else
          puts "WARNING: tag '#{tag_name}' not found"
        end
      end
    end
    item.save
  end
end

#visit_leaf(pathname) ⇒ Object

called when visit leaf node



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# File 'lib/dircat/cat_on_sqlite/directory_visitor.rb', line 102

def visit_leaf(pathname)
  @files << pathname
end