Convert params['ids'] to array

Services like find_builds can accept :ids as a param, but it needs to be
an array, string will be passed to find and converted into integer.

lib/travis/api/app/endpoint/builds.rb

@@ -5,6 +5,7 @@ class Travis::Api::App
     class Builds < Endpoint
       get '/' do
         name = params[:branches] ? :find_branches : :find_builds
+        params['ids'] = params['ids'].split(',') if params['ids'].respond_to?(:split)
         respond_with service(name, params)
       end
 

lib/travis/api/app/endpoint/repos.rb

@@ -63,6 +63,8 @@ class Travis::Api::App
       #
       # json(:builds)
       get '/:owner_name/:name/builds' do
+        name = params[:branches] ? :find_branches : :find_builds
+        params['ids'] = params['ids'].split(',') if params['ids'].respond_to?(:split)
         respond_with service(:find_builds, params)
       end
 

spec/integration/v2/builds_spec.rb

@@ -25,6 +25,18 @@ describe 'Builds' do
     response.should deliver_json_for(repo.builds.order('id DESC'), version: 'v2', type: :builds)
   end
 
+  it 'GET /repos/svenfuchs/minimal/builds?ids=1,2' do
+    ids = repo.builds.map(&:id).sort.join(',')
+    response = get "/repos/svenfuchs/minimal/builds?ids=#{ids}", {}, headers
+    response.should deliver_json_for(repo.builds.order('id ASC'), version: 'v2')
+  end
+
+  it 'GET /builds?ids=1,2' do
+    ids = repo.builds.map(&:id).sort.join(',')
+    response = get "/builds?ids=#{ids}", {}, headers
+    response.should deliver_json_for(repo.builds.order('id ASC'), version: 'v2')
+  end
+
   it 'GET /repos/svenfuchs/minimal/builds/1' do
     response = get "/repos/svenfuchs/minimal/builds/#{build.id}", {}, headers
     response.should deliver_json_for(build, version: 'v2')