class Paperclip::UrlGenerator

Attributes

attachment[R]

Public Class Methods

new(attachment) click to toggle source
# File lib/paperclip/url_generator.rb, line 6
def initialize(attachment)
  @attachment = attachment
end

Public Instance Methods

for(style_name, options) click to toggle source
# File lib/paperclip/url_generator.rb, line 10
def for(style_name, options)
  interpolated = attachment_options[:interpolator].interpolate(
    most_appropriate_url, @attachment, style_name
  )

  escaped = escape_url_as_needed(interpolated, options)
  timestamp_as_needed(escaped, options)
end

Private Instance Methods

default_url() click to toggle source

This method is all over the place.

# File lib/paperclip/url_generator.rb, line 25
def default_url
  if attachment_options[:default_url].respond_to?(:call)
    attachment_options[:default_url].call(@attachment)
  elsif attachment_options[:default_url].is_a?(Symbol)
    @attachment.instance.send(attachment_options[:default_url])
  else
    attachment_options[:default_url]
  end
end
escape_regex() click to toggle source
# File lib/paperclip/url_generator.rb, line 72
def escape_regex
  /[\?\(\)\[\]\+]/
end
escape_url(url) click to toggle source
# File lib/paperclip/url_generator.rb, line 64
def escape_url(url)
  if url.respond_to?(:escape)
    url.escape
  else
    URI.escape(url).gsub(escape_regex){|m| "%#{m.ord.to_s(16).upcase}" }
  end
end
escape_url_as_needed(url, options) click to toggle source
# File lib/paperclip/url_generator.rb, line 56
def escape_url_as_needed(url, options)
  if options[:escape]
    escape_url(url)
  else
    url
  end
end
most_appropriate_url() click to toggle source
# File lib/paperclip/url_generator.rb, line 35
def most_appropriate_url
  if @attachment.original_filename.nil?
    default_url
  else
    attachment_options[:url]
  end
end
timestamp_as_needed(url, options) click to toggle source
# File lib/paperclip/url_generator.rb, line 43
def timestamp_as_needed(url, options)
  if options[:timestamp] && timestamp_possible?
    delimiter_char = url.match(/\?.+=/) ? '&' : '?'
    "#{url}#{delimiter_char}#{@attachment.updated_at.to_s}"
  else
    url
  end
end
timestamp_possible?() click to toggle source
# File lib/paperclip/url_generator.rb, line 52
def timestamp_possible?
  @attachment.respond_to?(:updated_at) && @attachment.updated_at.present?
end