module ActsAsMarkup::ActiveRecordExtension::ClassMethods

This is a convenience method for `acts_as_markup :language => :markdown, :columns => [:body]` Additional options can be given at the end, if necessary.

# File lib/acts_as_markup/active_record_extension.rb, line 82
def acts_as_markdown(*columns)
  options = columns.extract_options!
  acts_as_markup options.merge(:language => :markdown, :columns => columns)
end

This allows you to specify columns you want to define as containing Markdown, Textile, Wikitext or RDoc content. Then you can simply call .to_html method on the attribute.

You can also specify the language as :variable. The language used to process the column will be based on another column. By default a column named “markup_language” is used, but this can be changed by providing a :language_column option. When a value is accessed it will create the correct object (Markdown, Textile, Wikitext or RDoc) based on the value of the language column. If any value besides markdown, textile, mediawiki, or RDoc is supplied for the markup language the text will pass through as a string.

You can specify additional options to pass to the markup library by using :markdown_options, :textile_options or :mediawiki_options. RDoc does not support any useful options. The options should be given as an array of arguments. You can specify options for more than one language when using :variable. See each library’s documentation for more details on what options are available.

Examples

Using Markdown language

class Post < ActiveRecord
  acts_as_markup :language => :markdown, :columns => [:body]
end

@post = Post.find(:first)
@post.body.to_s            # => "## Markdown Headline"
@post.body.to_html         # => "<h2> Markdown Headline</h2>"

Using variable language

class Post < ActiveRecord
  acts_as_markup :language => :variable, :columns => [:body], :language_column => 'language_name'
end

@post = Post.find(:first)
@post.language_name        # => "markdown"
@post.body.to_s            # => "## Markdown Headline"
@post.body.to_html         # => "<h2> Markdown Headline</h2>"

Using options

class Post < ActiveRecord
  acts_as_markup :language => :markdown, :columns => [:body], :markdown_options => [ :filter_html ]
end

class Post < ActiveRecord
  acts_as_markup :language => :textile, :columns => [:body], :textile_options => [ [ :filter_html ] ]
end

class Post < ActiveRecord
  acts_as_markup :language => :mediawiki, :columns => [:body], :mediawiki_options => [ { :space_to_underscore => true } ]
end

# File lib/acts_as_markup/active_record_extension.rb, line 67
def acts_as_markup(options)
  options.reverse_merge!(:language_column => :markup_language)
  markup_class = load_markup_class(options)
  
  unless options[:language].to_sym == :variable
    define_markup_columns_reader_methods(markup_class, options)
  else
    define_variable_markup_columns_reader_methods(markup_class, options)
  end
end

This is a convenience method for `acts_as_markup :language => :mediawiki, :columns => [:body]` Additional options can be given at the end, if necessary.

# File lib/acts_as_markup/active_record_extension.rb, line 100
def acts_as_mediawiki(*columns)
  options = columns.extract_options!
  acts_as_markup options.merge(:language => :mediawiki, :columns => columns)
end

This is a convenience method for `acts_as_markup :language => :rdoc, :columns => [:body]` Additional options can be given at the end, if necessary.

# File lib/acts_as_markup/active_record_extension.rb, line 109
def acts_as_rdoc(*columns)
  options = columns.extract_options!
  acts_as_markup options.merge(:language => :rdoc, :columns => columns)
end

This is a convenience method for `acts_as_markup :language => :textile, :columns => [:body]` Additional options can be given at the end, if necessary.

# File lib/acts_as_markup/active_record_extension.rb, line 91
def acts_as_textile(*columns)
  options = columns.extract_options!
  acts_as_markup options.merge(:language => :textile, :columns => columns)
end