Module: BuntoImport::Importers::DrupalCommon::ClassMethods

Included in:
BuntoImport::Importers::Drupal6, BuntoImport::Importers::Drupal7
Defined in:
lib/bunto-import/importers/drupal_common.rb

Overview

This module provides a base for the Drupal importers (at least for 6 and 7; since 8 will be a different beast). Version-specific importers will need to implement the missing methods from the Importer class.

The general idea is that this importer reads a MySQL database via Sequel and creates a post file for each node it finds in the Drupal database.

Constant Summary collapse

DEFAULTS = 
{
  "password" => "",
  "host"     => "localhost",
  "prefix"   => "",
  "types"    => %w(blog story article)
}

Instance Method Summary collapse

Instance Method Details

#process(options) ⇒ Object 



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# File 'lib/bunto-import/importers/drupal_common.rb', line 40

def process(options)
  dbname = options.fetch('dbname')
  user   = options.fetch('user')
  pass   = options.fetch('password', DEFAULTS["password"])
  host   = options.fetch('host',     DEFAULTS["host"])
  prefix = options.fetch('prefix',   DEFAULTS["prefix"])
  types  = options.fetch('types',    DEFAULTS["types"])

  db = Sequel.mysql(dbname, :user => user, :password => pass, :host => host, :encoding => 'utf8')

  query = self.build_query(prefix, types)

  conf = Bunto.configuration({})
  src_dir = conf['source']

  dirs = {
      :_posts   => File.join(src_dir, '_posts').to_s,
      :_drafts  => File.join(src_dir, '_drafts').to_s,
      :_layouts => Bunto.sanitized_path(src_dir, conf['layouts_dir'].to_s)
  }

  dirs.each do |key, dir|
    FileUtils.mkdir_p dir
  end

  # Create the refresh layout
  # Change the refresh url if you customized your permalink config
  File.open(File.join(dirs[:_layouts], 'refresh.html'), 'w') do |f|
    f.puts <<-HTML
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta http-equiv="refresh" content="0;url={{ page.refresh_to_post_id }}.html" />
</head>
</html>
HTML
  end

  db[query].each do |post|
    # Get required fields
    data, content = self.post_data(post)

    data['layout'] = post[:type]
    title = data['title'] = post[:title].strip.force_encoding('UTF-8')
    time = data['created'] = post[:created]

    # Get the relevant fields as a hash and delete empty fields
    data = data.delete_if { |k,v| v.nil? || v == ''}.each_pair {
        |k,v| ((v.is_a? String) ? v.force_encoding('UTF-8') : v)
    }

    # Construct a Bunto compatible file name
    is_published = post[:status] == 1
    node_id = post[:nid]
    dir = is_published ? dirs[:_posts] : dirs[:_drafts]
    slug = title.strip.downcase.gsub(/(&|&amp;)/, ' and ').gsub(/[\s\.\/\\]/, '-').gsub(/[^\w-]/, '').gsub(/[-_]{2,}/, '-').gsub(/^[-_]/, '').gsub(/[-_]$/, '')
    filename = Time.at(time).to_datetime.strftime('%Y-%m-%d-') + slug + '.md'

    # Write out the data and content to file
    File.open("#{dir}/#{filename}", 'w') do |f|
      f.puts data.to_yaml
      f.puts '---'
      f.puts content
    end


    # Make a file to redirect from the old Drupal URL
    if is_published
      alias_query = self.aliases_query(prefix)
      type = post[:type]

      aliases = db[alias_query, "#{type}/#{node_id}"].all

      aliases.push(:alias => "#{type}/#{node_id}")

      aliases.each do |url_alias|
        FileUtils.mkdir_p url_alias[:alias]
        File.open("#{url_alias[:alias]}/index.md", "w") do |f|
          f.puts '---'
          f.puts 'layout: refresh'
          f.puts "refresh_to_post_id: /#{Time.at(time).to_datetime.strftime('%Y/%m/%d/') + slug}"
          f.puts '---'
        end
      end
    end
  end
end

#require_deps ⇒ Object 



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# File 'lib/bunto-import/importers/drupal_common.rb', line 31

def require_deps
  BuntoImport.require_with_fallback(%w[
    rubygems
    sequel
    fileutils
    safe_yaml
  ])
end

#specify_options(c) ⇒ Object 



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# File 'lib/bunto-import/importers/drupal_common.rb', line 21

def specify_options(c)
  c.option 'dbname', '--dbname DB', 'Database name'
  c.option 'user', '--user USER', 'Database user name'
  c.option 'password', '--password PW', "Database user's password (default: #{DEFAULTS["password"].inspect})"
  c.option 'host', '--host HOST', "Database host name (default: #{DEFAULTS["host"].inspect})"
  c.option 'prefix', '--prefix PREFIX', "Table prefix name (default: #{DEFAULTS["prefix"].inspect})"
  c.option 'types', '--types TYPE1[,TYPE2[,TYPE3...]]', Array,
    "The Drupal content types to be imported  (default: #{DEFAULTS["types"].join(",")})"
end