From d856e9e6b69bdb9cb01839f475f63a04d2f0560b Mon Sep 17 00:00:00 2001
From: Joe Stanton <joe.stanton@red-badger.com>
Date: Thu, 31 Oct 2013 14:47:56 +0000
Subject: [PATCH 1/2] Implemented automatic pagination for GET's

Unless :auto_paginate => false
---
 lib/freeagent/client.rb | 45 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/lib/freeagent/client.rb b/lib/freeagent/client.rb
index 05e2291..17ea8c2 100644
--- a/lib/freeagent/client.rb
+++ b/lib/freeagent/client.rb
@@ -58,8 +58,37 @@ def access_token=(token)
       @access_token = OAuth2::AccessToken.new(@client, token)
     end
 
+    def get_default(params)
+      {
+        auto_paginate: true,
+        per_page: 100
+      }.merge params
+    end
+
     def get(path, params={})
-      request(:get, "#{Client.site}#{path}", :params => params).parsed
+      response = request(:get, "#{Client.site}#{path}", :params => params)
+      params = get_default(params)
+
+      if params[:auto_paginate]
+        auto_paginate(response, params)
+      else
+        response.parsed
+      end
+    end
+
+    def auto_paginate(response, params)
+      rels = process_rels(response)
+      items = response.parsed
+
+      while rels[:next]
+        response = request(:get, rels[:next], :params => params)
+        rels = process_rels(response)
+        items.merge response.parsed do |_, current, new|
+          current.concat new
+        end
+      end
+
+      items
     end
 
     def post(path, data={})
@@ -76,6 +105,20 @@ def delete(path, data={})
 
   private
 
+    # Finds link relations from 'Link' response header
+    #
+    # Returns an array of Relations
+    # https://github.com/lostisland/sawyer/blob/master/lib/sawyer/response.rb
+    def process_rels(response)
+      links = (response.headers["Link"] || "" ).split(', ').map do |link|
+        href, name = link.match(/<(.*?)>; rel=['"](\w+)["']/).captures
+        [name.to_sym, href]
+      end
+
+      Hash[*links.flatten]
+    end
+
+
     def request(method, path, options = {})
       if @access_token
         options[:body] = MultiJson.encode(options[:data]) unless options[:data].nil?

From c2130b0b18c93f9be06c7ca6cc71fa773f246f3e Mon Sep 17 00:00:00 2001
From: Joe Stanton <joe.stanton@red-badger.com>
Date: Thu, 31 Oct 2013 16:08:10 +0000
Subject: [PATCH 2/2] Merge params before initial request

---
 lib/freeagent/client.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/freeagent/client.rb b/lib/freeagent/client.rb
index 17ea8c2..c719724 100644
--- a/lib/freeagent/client.rb
+++ b/lib/freeagent/client.rb
@@ -66,8 +66,8 @@ def get_default(params)
     end
 
     def get(path, params={})
-      response = request(:get, "#{Client.site}#{path}", :params => params)
       params = get_default(params)
+      response = request(:get, "#{Client.site}#{path}", :params => params)
 
       if params[:auto_paginate]
         auto_paginate(response, params)