Class: JekyllImport::Importers::Joomla

Inherits:
JekyllImport::Importer show all
Defined in:
lib/jekyll-import/importers/joomla.rb

Class Method Summary collapse

Methods inherited from JekyllImport::Importer

inherited, run, stringify_keys, subclasses

Class Method Details

.process(options) ⇒ Object 



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# File 'lib/jekyll-import/importers/joomla.rb', line 30

def self.process(options)
  dbname  = options.fetch('dbname')
  user    = options.fetch('user')
  pass    = options.fetch('password', '')
  host    = options.fetch('host', "localhost")
  section = options.fetch('section', '1')
  table_prefix = options.fetch('prefix', "jos_")

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

  FileUtils.mkdir_p("_posts")

  # Reads a MySQL database via Sequel and creates a post file for each
  # post in wp_posts that has post_status = 'publish'. This restriction is
  # made because 'draft' posts are not guaranteed to have valid dates.
  query = "SELECT `title`, `alias`, CONCAT(`introtext`,`fulltext`) as content, `created`, `id` FROM #{table_prefix}content WHERE (state = '0' OR state = '1') AND sectionid = '#{section}'"

  db[query].each do |post|
    # Get required fields and construct Jekyll compatible name.
    title = post[:title]
    date = post[:created]
    content = post[:content]
    id = post[:id]

    # Construct a slug from the title if alias field empty.
    # Remove illegal filename characters.
    if !post[:alias] or post[:alias].empty?
      slug = sluggify(post[:title])
    else
      slug = sluggify(post[:alias])
    end

    name = "%02d-%02d-%02d-%03d-%s.markdown" % [date.year, date.month, date.day,
                                           id,slug]

    # Get the relevant fields as a hash, delete empty fields and convert
    # to YAML for the header.
    data = {
       'layout' => 'post',
       'title' => title.to_s,
       'joomla_id' => post[:id],
       'joomla_url' => post[:alias],
       'date' => date
     }.delete_if { |k,v| v.nil? || v == '' }.to_yaml

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

.require_deps ⇒ Object 



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# File 'lib/jekyll-import/importers/joomla.rb', line 21

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

.sluggify(title) ⇒ Object

Borrowed from the Wordpress importer



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# File 'lib/jekyll-import/importers/joomla.rb', line 85

def self.sluggify( title )
  title = title.downcase.gsub(/[^0-9A-Za-z]+/, " ").strip.gsub(" ", "-")
end

.specify_options(c) ⇒ Object 



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# File 'lib/jekyll-import/importers/joomla.rb', line 12

def self.specify_options(c)
  c.option 'dbname', '--dbname', 'Database name'
  c.option 'user', '--user', 'Database user name'
  c.option 'password', '--password', "Database user's password (default: '')"
  c.option 'host', '--host', 'Database host name'
  c.option 'section', '--section', 'Table prefix name'
  c.option 'prefix', '--prefix', 'Table prefix name'
end

.validate(options) ⇒ Object 



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# File 'lib/jekyll-import/importers/joomla.rb', line 4

def self.validate(options)
  %w[dbname user].each do |option|
    if options[option].nil?
      abort "Missing mandatory option --#{option}."
    end
  end
end