Class: Nimbu::Pagination::PageLinks

Inherits:
Object
  • Object
show all
Includes:
Utils::Constants
Defined in:
lib/nimbu-api/pagination/page_links.rb

Constant Summary collapse 

",".freeze

Constants included from Utils::Constants

Utils::Constants::ACCEPT, Utils::Constants::ACCEPTED_OAUTH_SCOPES, Utils::Constants::ACCEPT_CHARSET, Utils::Constants::CACHE_CONTROL, Utils::Constants::CONTENT_LENGTH, Utils::Constants::CONTENT_TYPE, Utils::Constants::DATE, Utils::Constants::ETAG, Utils::Constants::HEADER_LAST, Utils::Constants::HEADER_LINK, Utils::Constants::HEADER_NEXT, Utils::Constants::LOCATION, Utils::Constants::META_FIRST, Utils::Constants::META_LAST, Utils::Constants::META_NEXT, Utils::Constants::META_PREV, Utils::Constants::META_REL, Utils::Constants::NIMBU_SITE, Utils::Constants::OAUTH_SCOPES, Utils::Constants::PARAM_PAGE, Utils::Constants::PARAM_PER_PAGE, Utils::Constants::PARAM_START_PAGE, Utils::Constants::RATELIMIT_LIMIT, Utils::Constants::RATELIMIT_REMAINING, Utils::Constants::SERVER, Utils::Constants::USER_AGENT

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response_headers) ⇒ PageLinks

Parses links from executed request



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# File 'lib/nimbu-api/pagination/page_links.rb', line 14

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

Instance Attribute Details

#first ⇒ Object

Hold the extracted values for URI from the Link header for the first, last, next and previous page.



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# File 'lib/nimbu-api/pagination/page_links.rb', line 10

def first
  @first
end

#last ⇒ Object

Hold the extracted values for URI from the Link header for the first, last, next and previous page.



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# File 'lib/nimbu-api/pagination/page_links.rb', line 10

def last
  @last
end

#next ⇒ Object

Hold the extracted values for URI from the Link header for the first, last, next and previous page.



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# File 'lib/nimbu-api/pagination/page_links.rb', line 10

def next
  @next
end

#prev ⇒ Object

Hold the extracted values for URI from the Link header for the first, last, next and previous page.



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# File 'lib/nimbu-api/pagination/page_links.rb', line 10

def prev
  @prev
end

Instance Method Details

#any? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/nimbu-api/pagination/page_links.rb', line 42

def any?
  self.first || self.last || self.next || self.prev
end