v3: prefix template variables with entity type (like in json-api)

lib/travis/api/v3/routes.rb

@@ -4,7 +4,7 @@ module Travis::API::V3
     extend DSL
 
     resource :repository do
-      route '/repo/:id'
+      route '/repo/{repository.id}'
       get :find_repository
     end
   end

lib/travis/api/v3/service.rb

@@ -4,11 +4,12 @@ module Travis::API::V3
       @required_params ||= []
     end
 
-    def self.params(*list, optional: false)
+    def self.params(*list, optional: false, prefix: nil)
       @params ||= []
       list.each do |param|
-        param = param.to_s
+        method = param = param.to_s
-        define_method(param) { params[param] }
+        param = "#{prefix}.#{method}" if prefix
+        define_method(method) { params[param] }
         required_params << param unless optional
         @params << param
       end

lib/travis/api/v3/services/find_repository.rb

@@ -1,6 +1,6 @@
 module Travis::API::V3
   class Services::FindRepository < Service
-    params :id, :github_id, :slug, optional: true
+    params :id, :github_id, :slug, optional: true, prefix: :repository
 
     def run
       raise NotFound, :repository unless repository and access_control.visible? repository

spec/v3/service_index_spec.rb

@@ -9,7 +9,7 @@ describe Travis::API::V3::ServiceIndex do
   describe "custom json entry point" do
     let(:expected_resources) {{
       "repository" => {
-        "find"     => [{"request-method"=>"GET", "uri-template"=>"#{path}repo/{id}"}]
+        "find"     => [{"request-method"=>"GET", "uri-template"=>"#{path}repo/{repository.id}"}]
       }
     }}