Encapsulates the notion of a mime type. Can be used at render time, for example, with:

class PostsController < ActionController::Base
  def show
    @post = Post.find(params[:id])

    respond_to do |format|
      format.html
      format.ics { render text: post.to_ics, mime_type: Mime::Type["text/calendar"]  }
      format.xml { render xml: @people }
    end
  end
end
Methods
#
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Constants
TRAILING_STAR_REGEXP = /(text|application)\/\*/
 
PARAMETER_SEPARATOR_REGEXP = /;\s*\w+="?\w+"?/
 
Attributes
[R] symbol
Class Public methods
browser_generated_types()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 282
def self.browser_generated_types
  ActiveSupport::Deprecation.warn "Mime::Type.browser_generated_types is deprecated and will be removed in Rails 4.1"
  @@browser_generated_types
end
new(string, symbol = nil, synonyms = [])

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 231
def initialize(string, symbol = nil, synonyms = [])
  @symbol, @synonyms = symbol, synonyms
  @string = string
end
Instance Public methods
==(mime_type)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 260
def ==(mime_type)
  return false if mime_type.blank?
  (@synonyms + [ self ]).any? do |synonym|
    synonym.to_s == mime_type.to_s || synonym.to_sym == mime_type.to_sym
  end
end
===(list)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 252
def ===(list)
  if list.is_a?(Array)
    (@synonyms + [ self ]).any? { |synonym| list.include?(synonym) }
  else
    super
  end
end
=~(mime_type)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 267
def =~(mime_type)
  return false if mime_type.blank?
  regexp = Regexp.new(Regexp.quote(mime_type.to_s))
  (@synonyms + [ self ]).any? do |synonym|
    synonym.to_s =~ regexp
  end
end
html?()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 287
def html?
  @@html_types.include?(to_sym) || @string =~ /html/
end
lookup(string)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 151
def lookup(string)
  LOOKUP[string]
end
lookup_by_extension(extension)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 155
def lookup_by_extension(extension)
  EXTENSION_LOOKUP[extension.to_s]
end
parse(accept_header)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 179
def parse(accept_header)
  if accept_header !~ /,/
    accept_header = accept_header.split(PARAMETER_SEPARATOR_REGEXP).first
    parse_trailing_star(accept_header) || [Mime::Type.lookup(accept_header)].compact
  else
    list, index = AcceptList.new, 0
    accept_header.split(',').each do |header|
      params, q = header.split(PARAMETER_SEPARATOR_REGEXP)
      if params.present?
        params.strip!

        params = parse_trailing_star(params) || [params]

        params.each do |m|
          list << AcceptItem.new(index, m.to_s, q)
          index += 1
        end
      end
    end
    list.assort!
  end
end
parse_data_with_trailing_star(input)

For an input of 'text', returns [Mime::JSON, Mime::XML, Mime::ICS, Mime::HTML, Mime::CSS, Mime::CSV, Mime::JS, Mime::YAML, Mime::TEXT].

For an input of 'application', returns [Mime::HTML, Mime::JS, Mime::XML, Mime::YAML, Mime::ATOM, Mime::JSON, Mime::RSS, Mime::URL_ENCODED_FORM].

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 211
def parse_data_with_trailing_star(input)
  Mime::SET.select { |m| m =~ input }
end
parse_trailing_star(accept_header)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 202
def parse_trailing_star(accept_header)
  parse_data_with_trailing_star($1) if accept_header =~ TRAILING_STAR_REGEXP
end
ref()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 248
def ref
  to_sym || to_s
end
register(string, symbol, mime_type_synonyms = [], extension_synonyms = [], skip_lookup = false)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 165
def register(string, symbol, mime_type_synonyms = [], extension_synonyms = [], skip_lookup = false)
  Mime.const_set(symbol.upcase, Type.new(string, symbol, mime_type_synonyms))

  new_mime = Mime.const_get(symbol.upcase)
  SET << new_mime

  ([string] + mime_type_synonyms).each { |str| LOOKUP[str] = SET.last } unless skip_lookup
  ([symbol] + extension_synonyms).each { |ext| EXTENSION_LOOKUP[ext.to_s] = SET.last }

  @register_callbacks.each do |callback|
    callback.call(new_mime)
  end
end
register_alias(string, symbol, extension_synonyms = [])

Registers an alias that's not used on mime type lookup, but can be referenced directly. Especially useful for rendering different HTML versions depending on the user agent, like an iPhone.

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 161
def register_alias(string, symbol, extension_synonyms = [])
  register(string, symbol, [], extension_synonyms, true)
end
register_callback(&block)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 147
def register_callback(&block)
  @register_callbacks << block
end
to_s()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 236
def to_s
  @string
end
to_str()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 240
def to_str
  to_s
end
to_sym()

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 244
def to_sym
  @symbol
end
unregister(symbol)

This method is opposite of register method.

Usage:

Mime::Type.unregister(:mobile)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 220
def unregister(symbol)
  symbol = symbol.upcase
  mime = Mime.const_get(symbol)
  Mime.instance_eval { remove_const(symbol) }

  SET.delete_if { |v| v.eql?(mime) }
  LOOKUP.delete_if { |_,v| v.eql?(mime) }
  EXTENSION_LOOKUP.delete_if { |_,v| v.eql?(mime) }
end
verify_request?()

Returns true if Action Pack should check requests using this Mime Type for possible request forgery. See ActionController::RequestForgeryProtection.

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/mime_type.rb, line 277
def verify_request?
  ActiveSupport::Deprecation.warn "Mime::Type#verify_request? is deprecated and will be removed in Rails 4.1"
  @@browser_generated_types.include?(to_sym)
end