init project

app/controllers/users/watches_controller.rb

@@ -0,0 +1,28 @@
+class Users::WatchesController < Users::BaseController
+  before_action :require_login, :check_auth
+
+  def create
+    if observed_logged_user?
+      render_error('不能关注自己')
+      return
+    end
+
+    if current_user.watched?(observed_user)
+      render_ok
+      return
+    end
+
+    current_user.watch!(observed_user)
+    render_ok
+  end
+
+  def destroy
+    unless current_user.watched?(observed_user)
+      render_ok
+      return
+    end
+
+    current_user.unwatch!(observed_user)
+    render_ok
+  end
+end