3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
# File 'lib/gris/output_formatters/paginated_presenter.rb', line 3
def self.included(base)
base.class_eval do
include Gris::Presenter
property :total_count
property :total_pages
property :current_page
property :next_page
property :prev_page
link :self do |opts|
"#{request_url(opts)}?#{query_string_for_page(represented.current_page, opts)}"
end
link :next do |opts|
"#{request_url(opts)}?#{query_string_for_page(represented.next_page, opts)}" if represented.next_page
end
link :prev do |opts|
"#{request_url(opts)}?#{query_string_for_page(represented.prev_page, opts)}" if represented.prev_page
end
private
def request_url(opts)
request = Grape::Request.new(opts[:env])
"#{request.base_url}#{opts[:env]['PATH_INFO']}"
end
def query_string_for_page(page, opts)
qs = Rack::Utils.parse_nested_query(opts[:env]['QUERY_STRING'])
qs['page'] = page
qs.to_query
end
end
end
|