Add search API

app/controllers/api/v1/message_controller.rb

@@ -97,6 +97,19 @@ def destroy
         when :error_on_destroy        then render_error "destroy error"
         end
       end
+
+      def search
+        room_id = params[:room_id]
+        query   = params[:query]
+
+        messages = {}
+        Room.with_room(room_id, current_user) do |room|
+          return render_error("room does not exist", 403) unless room
+
+          messages = Message.find_by_text(:text => query, :rooms => [ room ], :limit => 20)
+        end unless query.blank?
+        render :json => messages.map { |m| { :room => m[:room], :messages => m[:messages].map(&:to_hash) } }
+      end
     end
   end
 end

config/routes.rb

@@ -17,6 +17,7 @@
     namespace(:v1) do
       get 'room/list', :controller => 'room', :action => 'list'
       get 'message/list', :controller => 'message', :action => 'list'
+      get 'message/search', :controller => 'message', :action => 'search'
       get 'user', :controller => 'user', :action => 'show'
       post 'user', :controller => 'user', :action => 'update'
       get 'user/add_device', :controller => 'user', :action => 'add_device'

spec/controllers/api/v1/message_controller_spec.rb

@@ -425,4 +425,28 @@
       its(:response_code) { should == 403 }
     end
   end
+
+  describe "search" do
+    context 'normal' do
+      before {
+        get :search, :room_id => @room.id, :query => 'hoge', :format => 'json'
+      }
+      subject { response.body }
+      it { should have_json("//body[text() = 'hoge']") }
+    end
+    context 'empty query' do
+      before {
+        get :search, :room_id => @room.id, :format => 'json'
+      }
+      subject { response }
+      its(:response_code) { should == 200 }
+    end
+    context 'private room' do
+      before {
+        get :search, :room_id => @private_room.id, :query => 'hoge', :format => 'json'
+      }
+      subject { response.body }
+      it { should have_json("/status[text() = 'error']") }
+    end
+  end
 end