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Versions: 20
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Stored size: 1.35 KB
Contents
module Nimbu
module Pagination
class PageLinks
include Nimbu::Utils::Constants
DELIM_LINKS = ",".freeze # :nodoc:
# Hold the extracted values for URI from the Link header
# for the first, last, next and previous page.
attr_accessor :first, :last, :next, :prev
# Parses links from executed request
#
def initialize(response_headers)
link_header = response_headers[HEADER_LINK]
if link_header
return unless link_header =~ /(next|first|last|prev)/
link_header.split(DELIM_LINKS).each do |link|
if link.strip =~ /<([^>]+)>; rel=\"([^\"]+)\"/
url_part, meta_part = $1, $2
next if !url_part || !meta_part
case meta_part
when META_FIRST
self.first = url_part
when META_LAST
self.last = url_part
when META_NEXT
self.next = url_part
when META_PREV
self.prev = url_part
end
end
end
else
# When on the first page
self.next = response_headers[HEADER_NEXT]
self.last = response_headers[HEADER_LAST]
end
end
def any?
self.first || self.last || self.next || self.prev
end
end # PageLinks
end # Pagination
end # Nimbu
Version data entries
20 entries across 20 versions & 1 rubygems