Class: JekyllImport::Importers::Easyblog

Inherits:
JekyllImport::Importer show all
Defined in:
lib/jekyll-import/importers/easyblog.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/easyblog.rb', line 31

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.mysql2(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
	  ep.`title`, `permalink` as alias, concat(`intro`, `content`) as content, ep.`created`, ep.`id`, ec.`title` as category, tags
  from
    #{table_prefix}easyblog_post ep
    left join #{table_prefix}easyblog_category ec on (ep.category_id = ec.id)
    left join (
      select
        ept.post_id,
        group_concat(et.alias order by alias separator ' ') as tags
      from
        #{table_prefix}easyblog_post_tag ept
        join #{table_prefix}easyblog_tag et on (ept.tag_id = et.id)
      group by
        ept.post_id) x on (ep.id = x.post_id);
  "

  db[query].each do |post|
    # Get required fields and construct Jekyll compatible name.
    title = post[:title]
    slug = post[:alias]
    date = post[:created]
    content = post[:content]
    category = post[:category]
    tags = post[:tags]
    name = format("%02d-%02d-%02d-%s.markdown", date.year, date.month, date.day, 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],
      "category"   => post[:category],
      "tags"       => post[:tags],
      "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/easyblog.rb', line 21

def self.require_deps
  JekyllImport.require_with_fallback(%w(
    rubygems
    sequel
    mysql2
    fileutils
    safe_yaml
  ))
end

.specify_options(c) ⇒ Object 



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# File 'lib/jekyll-import/importers/easyblog.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/easyblog.rb', line 6

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