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 37

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 
	  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 = "%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 28

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

.specify_options(c) ⇒ Object 



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# File 'lib/jekyll-import/importers/easyblog.rb', line 19

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 11

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