extracted common controller behavior in order to reduce code duplication

app/controllers/concerns/common_behavior.rb

@@ -0,0 +1,51 @@
+module CommonBehavior
+  def create_and_respond(options = {}, &block)
+    @object = options[:object]
+    respond_to do |format|
+      if @object.save
+        yield if block_given?
+        path = options[:path].try(:call) || @object
+        respond_with_valid_object(format, notice: t('shared.object_created', model: @object.class.model_name.human), path: path, status: :created)
+      else
+        respond_with_invalid_object(format, template: :new)
+      end
+    end
+  end
+  private :create_and_respond
+
+  def destroy_and_respond(options = {})
+    @object = options[:object]
+    @object.destroy
+    respond_to do |format|
+      path = options[:path] || send(:"#{@object.class.model_name.collection}_path")
+      format.html { redirect_to(path, notice: t('shared.object_destroyed', model: @object.class.model_name.human)) }
+      format.json { head(:no_content) }
+    end
+  end
+  private :destroy_and_respond
+
+  def respond_with_invalid_object(format, options = {})
+    format.html { render(options[:template]) }
+    format.json { render(json: @object.errors, status: :unprocessable_entity) }
+  end
+  private :respond_with_invalid_object
+
+  def respond_with_valid_object(format, options = {})
+    format.html { redirect_to(options[:path], notice: options[:notice]) }
+    format.json { render(:show, location: @object, status: options[:status]) }
+  end
+  private :respond_with_valid_object
+
+  def update_and_respond(options = {})
+    @object = options[:object]
+    respond_to do |format|
+      if @object.update(options[:params])
+        path = options[:path] || @object
+        respond_with_valid_object(format, notice: t('shared.object_updated', model: @object.class.model_name.human), path: path, status: :ok)
+      else
+        respond_with_invalid_object(format, template: :edit)
+      end
+    end
+  end
+  private :update_and_respond
+end