Module: AtomicLti::PagingHelper

Defined in:
app/lib/atomic_lti/paging_helper.rb

Constant Summary collapse

MAX_PAGES = 
200

Class Method Summary collapse

Class Method Details



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# File 'app/lib/atomic_lti/paging_helper.rb', line 14

def self.link_url(links, rel)
  matching_link = links.detect { |link| link.include?("rel=\"#{rel}\"") }

  return unless matching_link

  matching_link.split(";")[0].gsub(/[<>\s]/, "")
end

.paginate_request ⇒ Object 



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# File 'app/lib/atomic_lti/paging_helper.rb', line 22

def self.paginate_request
  all = []
  next_link = nil
  loop do
    result, next_link = yield(next_link)
    all << result

    break if next_link.blank? || result.blank?

    raise AtomicLti::Exceptions::PaginationLimitExceeded if all.count > MAX_PAGES
  end
  all.compact.flatten
end

.response_link_urls(response, *rels) ⇒ Object 



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# File 'app/lib/atomic_lti/paging_helper.rb', line 5

def self.response_link_urls(response, *rels)
  links = response.headers["link"]&.split(",") || []
  urls = {}
  rels.each do |rel|
    urls[rel] = link_url(links, rel)
  end
  urls.values_at(*rels)
end